Source: http://www.google.com/patents/US5628293?dq=5,581,513
Timestamp: 2018-01-21 16:49:01
Document Index: 635089956

Matched Legal Cases: ['Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08', 'Application No. 08']

Patent US5628293 - Electronically-controlled fluid injector system having pre-injection ... - Google Patents
An improved electronically-controlled fluid injector system comprises a fluid storage chamber and a direct-operated check. Pressurization of fluid in the storage chamber begins before the start of fluid injection. Fluid injection begins by hydraulically unbalancing the check. Fluid injection sharply...http://www.google.com/patents/US5628293?utm_source=gb-gplus-sharePatent US5628293 - Electronically-controlled fluid injector system having pre-injection pressurizable fluid storage chamber and direct-operated check
Publication number US5628293 A
Application number US 08/524,144
Also published as CA2145709A1, DE19517578A1, DE19517578B4, US5551398
Publication number 08524144, 524144, US 5628293 A, US 5628293A, US-A-5628293, US5628293 A, US5628293A
Inventors Dennis H. Gibson, Gregory W. Hefler, Ronald D. Shinogle, Mark F. Sommars, Howard N. Cannon
Patent Citations (90), Non-Patent Citations (32), Referenced by (65), Classifications (35), Legal Events (3)
US 5628293 A
1. An electronically-controlled unit fluid pump injector comprising:
a housing portion defining a fluid control passage and a fluid storage chamber;
a first pressure control valve operable to selectively open and close fluid communication between the storage chamber and the control passage;
a nozzle portion defining a pressure control chamber and at least one fluid injection orifice;
a fluid pressurization member selectively movable between a first position and a second position, when the first valve is opened said member operable during movement from its first to second positions for displacing fluid from the storage chamber to the control passage, when the first valve is closed said member operable during movement from its first to second positions for displacing fluid in the storage chamber thereby pressurizing such fluid to a selected pressure;
a movable direct-operated check operable to selectively close and open fluid communication between the storage chamber and the fluid injection orifice, said check having a first end portion and a second end portion, said first end portion defining a first effective area arranged in partial fluid communication with the storage chamber when the check is closed, said first effective area arranged in complete fluid communication with the storage chamber when the check is opened, said second end portion defining a second effective area arranged in fluid communication with the pressure control chamber; and
a second pressure control valve selectively movable between a first position and a second position, said second valve at its first position closing fluid communication between the pressure control chamber and the control passage and opening fluid communication between the pressure control chamber and the storage chamber, said second valve at its second position opening fluid communication between the pressure control chamber and the control passage and closing fluid communication between the pressure control chamber and the storage chamber, when the check is closed and the second valve is at its second position said first and second effective areas are operable for hydraulically opening the check, when the check is opened and the second valve is at its first position said first and second effective areas are operable for balancing opposing hydraulic forces acting on such effective areas.
2. An electronically-controlled unit fluid pump injector comprising:
a first pressure control valve selectively movable between a first position opening fluid communication between the storage chamber and the control passage and a second position blocking fluid communication between the storage chamber and the control passage;
a fluid pressurization member selectively movable between a first position and a second position, when the first valve is at its first position said member operable during movement from its first to second positions for displacing fluid from the storage chamber to the control passage, when the first valve is at its second position said member operable during movement from its first to second positions for displacing fluid in the storage chamber thereby pressurizing such fluid to a selected pressure;
a direct-operated check selectively movable between a first position blocking fluid communication between the storage chamber and the fluid injection orifice and a second position opening fluid communication between the storage chamber and the fluid injection orifice, said check having a first end portion and a second end portion, said first end portion defining a first effective area arranged in fluid communication with the storage chamber when the check is at its second position, said second end portion defining a second effective area arranged in fluid communication with the pressure control chamber; and
a second pressure control valve selectively movable between a first position and a second position, said second valve at its first position blocking fluid communication between the pressure control chamber and the control passage and opening fluid communication between the pressure control chamber and the storage chamber, said second valve at its second position opening fluid communication between the pressure control chamber and the control passage and blocking fluid communication between the pressure control chamber and the storage chamber, when the check is at its first position and the second valve is at its second position said first and second effective areas are operable for hydraulically moving the check towards its second position, when the check is at its second position and the second valve is at its first position said first and second effective areas are operable for balancing opposing hydraulic forces acting on such effective areas.
3. The unit fluid pump injector of claim 2 further comprising a first biasing device operable to bias the check towards its first position.
12. An electronically-controlled unit fuel pump injector comprising:
a housing portion defining a fuel control passage and an integral fixed-volume fuel storage chamber;
an electronically-controlled first pressure control valve positioned in the storage chamber, said first valve selectively movable between a de-energizeable first position opening fluid communication between the storage chamber and the control passage and an energizeable second position blocking fluid communication between the storage chamber and the control passage;
a nozzle portion defining a bore, an injection chamber arranged in continuous fluid communication with the storage chamber, a separate pressure control chamber separate from the injection chamber, a tip seat, and at least one fuel injection orifice;
a reciprocal fuel pressurization plunger positioned in the storage chamber, said plunger selectively movable between a first position and a second position, when the first valve is at its first position said plunger operable during movement from its first to second positions for displacing fuel from the storage chamber to the control passage, when the first valve is at its second position said plunger operable during movement from its first to second positions for displacing fuel in the storage chamber thereby pressurizing such fuel to a selected variable pressure;
a direct-operated check positioned in the bore of the nozzle portion and selectively movable between a first position blocking fluid communication between the storage chamber and the fuel injection orifice and a second position opening fluid communication between the storage chamber and the fuel injection orifice, said check having a first end portion and a second end portion, said first end portion defining a first effective area arranged in partial fluid communication with the injection chamber when the check is at its first position, said first effective area arranged in complete fluid communication with the injection chamber when the check is at its second position, said second end portion defining a second effective area arranged in fluid communication with the pressure control chamber;
a first spring operable for biasing the check towards its first position;
an electronically-controlled second pressure control valve selectively movable between a de-energizeable first position and an energizeable second position, said second valve at its first position blocking fluid communication between the pressure control chamber and the control passage and opening fluid communication between the pressure control chamber and the injection chamber, said second valve at its second position opening fluid communication between the pressure control chamber and the control passage and blocking fluid communication between the pressure control chamber and the injection chamber, when the check is at its first position and the second valve is at its second position said first and second effective areas are operable for hydraulically moving the check towards its second position, when the check is at its second position and the second valve is at its first position said first and second effective areas are operable for balancing opposing hydraulic forces acting on such effective areas thereby allowing the first spring to move the check towards its first position; and
a second spring operable for biasing both the first and second pressure control valves towards their respective first positions.
13. An electronically-controlled fuel injection system adapted for an engine comprising:
a housing defining a fuel control passage and a fuel storage chamber;
a fuel pressurization member selectively movable between a first position and a second position, when the first valve is opened said member operable during movement from its first to second positions for displacing fuel from the storage chamber to the control passage, when the first valve is closed said member operable during movement from its first to second positions for displacing fuel in the storage chamber thereby pressurizing such fuel to a selected pressure;
an actuation device operable for selectively actuating the member for movement between its first and second positions;
an electronically-controlled injector including a nozzle portion and a movable direct-operated check, said nozzle portion defining a pressure control chamber and at least one fuel injection orifice, said check operable to selectively close and open fluid communication between the storage chamber and the fuel injection orifice, said check having a first end portion and a second end portion, said first end portion defining a first effective area arranged in partial fluid communication with the storage chamber when the check is closed, said first effective area arranged in complete fluid communication with the storage chamber when the check is opened, said second end portion defining a second effective area arranged in fluid communication with the pressure control chamber; and
14. The fuel injection system of claim 13 wherein the actuation device includes a rotatable cam operable for periodically actuating the member for movement between its first and second positions.
21. A method of operating an electronically-controlled unit fuel pump injector comprising the steps of:
opening fluid communication between a fixed-volume fuel storage chamber and a control passage;
closing fluid communication between the storage chamber and at least one fuel injection orifice;
displacing a variably-selected volume of fuel from the storage chamber to the control passage;
closing fluid communication between the storage chamber and the control passage;
displacing another variably-selected volume of fuel in the storage chamber and thereby pressurizing the fuel to a selected pressure;
opening fluid communication between the storage chamber and the fuel injection orifice to begin fuel injection; and
closing fluid communication between the storage chamber and the fuel injection orifice to end fuel injection.
22. A method of operating an electronically-controlled unit fuel pump injector comprising the steps of:
closing a check to block fluid communication between the storage chamber and at least one fuel injection orifice;
biasing the check towards a closed position blocking fluid communication between the storage chamber and the fuel injection orifice;
hydraulically-unbalancing the check for movement towards an opened position opening fluid communication between the storage chamber and the fuel injection orifice; and
hydraulically-balancing the check and allowing the biased check to move to the closed position.
23. A fuel injector for injecting fuel into a combustion chamber of an engine during an injection sequence, comprising:
an injector body having an injector orifice; and
means disposed in the injector body for injecting pressurized fuel through the orifice into the combustion chamber at a selectable point in the injection sequence including a check having first and second check ends and movable between an open position at which fuel is injected into the combustion chamber and a closed position at which the flow of pressurized fuel into the combustion chamber is blocked and means for selectively applying either a low fluid pressure or a high fluid pressure directly to each of the first and second ends to move the check between the open and closed positions.
24. The fuel injector of claim 23, wherein fuel is supplied to the fuel injector at a low supply pressure and further including means disposed within the injector body for pressurizing the fuel.
43. A method of injecting fuel into a combustion chamber of an internal combustion engine using a fuel injector having an injector body, a check disposed in the injector body and movable between injecting and non-injecting positions, a spring urging the check into the non-injecting position and means coupled to the check ends for selectively coupling either high or low fluid pressures thereto, comprising the steps of:
(a.) controlling the coupling means to cause the high fluid pressure to be applied to the first and second check ends;
44. The method of claim 43, wherein the steps (a.), (b.) and (c.) include the step of operating a solenoid having an armature coupled to a valve wherein the valve is coupled between the check ends and sources of high and low fluid pressures.
50. A method of injecting fuel into a combustion chamber of an internal combustion engine using a unit injector having an injector body, a high pressure storage volume disposed in the injector body, a plunger extending into the high pressure storage volume and movable to pressurize fuel therein, a check disposed in the injector body having first and second check ends of substantially equal effective cross-sectional dimensions and movable between injecting and non-injecting positions, a pressure control valve in fluid communication with the high pressure storage volume and a poppet valve in fluid communication between the check ends and the high pressure storage volume and a source of low fluid pressure, comprising the steps of:
(a.) providing a solenoid in the injector body having a first armature coupled to the pressure control valve, a second armature coupled to the poppet valve and a winding energizable to cause the armatures to be displaced relative to one another;
(b.) energizing the winding as the plunger is moving into the high pressure storage volume to cause the pressure control valve to close the high pressure storage volume and pressurize fuel therein;
(c.) deenergizing the winding to place the first and second check ends in fluid communication with the high pressure storage volume; and
(d.) energizing the winding again to place the first check end in fluid communication with the source of low fluid pressure and the second check end in fluid communication with the high pressure storage volume so that a pressure differential across the check moves the check to the injecting position and initiates fuel injection.
51. The method of claim 50, wherein a spring is in contact with the check and including the further step of deenergizing the winding again after the step (d.) to remove the pressure differential across the check and cause the check to be moved to the non-injecting position under the influence of the spring.
EP0133203A2 * Jun 12, 1984 Feb 20, 1985 The Bendix Corporation Diesel fuel injector with double dump configuration
EP0174718A1 * Jul 8, 1985 Mar 19, 1986 General Motors Corporation Electromagnetic unit fuel injector
EP0240353A2 * Apr 2, 1987 Oct 7, 1987 Nippondenso Co., Ltd. A fuel injection control device
GB1132403A * Title not available
GB1397114A * Title not available
GB2003977A * Title not available
1 * 15th Annual Vienna Motor Symposium, pp. 36 53, Common Rail Injection System for Diesel Engines Analysis, Potential Future, by Egger et al. (Robert Bosch G.m.b.H.) Apr. 28 29, 1994.
2 15th Annual Vienna Motor Symposium, pp. 36-53, Common Rail Injection System for Diesel Engines-Analysis, Potential Future, by Egger et al. (Robert Bosch G.m.b.H.) Apr. 28-29, 1994.
3 * 15th Annual Vienna Motor Symposium, pp. 54 79, Common Rail Injection Systems with Characteristics Independent of Engine Speed and With High Injection Pressure Diesel Engine Potential for the Future, by Prescher et al. (IMH Institut fur Motorenbau Prof. Huber GmbH) Apr. 28 29, 1994.
4 15th Annual Vienna Motor Symposium, pp. 54-79, Common Rail Injection Systems with Characteristics Independent of Engine Speed and With High Injection Pressure-Diesel Engine Potential for the Future, by Prescher et al. (IMH-Institut fur Motorenbau Prof. Huber GmbH) Apr. 28-29, 1994.
5 * 15th Annual Vienna Motor Symposium, pp. 96 115, Latest Findings in Development of High Speed Direct Injection (HSDI) Diesel Engines in Passenger Vehicles by Cichocki et al. (AVL. List GmbH) Apr. 28 29, 1994.
6 15th Annual Vienna Motor Symposium, pp. 96-115, Latest Findings in Development of High-Speed Direct Injection (HSDI) Diesel Engines in Passenger Vehicles by Cichocki et al. (AVL.--List GmbH) Apr. 28-29, 1994.
7 * Proc. Instn. Mech. Engrs., vol. 204 The Injection Equipment of Future High Speed Di Diesel Engines with Respect to Power an Pollution Requirements by Dolenc (Monobloc Dieselmotoren G.m.b.H.), Mar 20, 1990.
8 Proc. Instn. Mech. Engrs., vol. 204 The Injection Equipment of Future High-Speed Di Diesel Engines with Respect to Power an Pollution Requirements by Dolenc (Monobloc Dieselmotoren G.m.b.H.), Mar 20, 1990.
9 * SAE Paper No. 840273 Direct Digital Control of Electronic Unit Injectors by Beck et al. (BKM, Inc.) Feb. 27 Mar. 2, 1984.
10 SAE Paper No. 840273 Direct Digital Control of Electronic Unit Injectors by Beck et al. (BKM, Inc.) Feb. 27-Mar. 2, 1984.
11 * SAE Paper No. 900639 Injection Rate Shaping and High Speed Combustion Analysis New Tools for Diesel Engine Combustion Development by Beck et al. (BKM, Inc.; PEI Consultants), Feb. 26 Mar. 2, 1990.
12 SAE Paper No. 900639 Injection Rate Shaping and High Speed Combustion Analysis--New Tools for Diesel Engine Combustion Development by Beck et al. (BKM, Inc.; PEI Consultants), Feb. 26-Mar. 2, 1990.
13 * SAE Paper No. 910184 Application of a High Flexible Electronic Injection System to a Heavy Duty Diesel Engine by Racine et al. (Renault Vehicules Industriels), Feb. 25 Mar. 1, 1991.
14 SAE Paper No. 910184 Application of a High Flexible Electronic Injection System to a Heavy Duty Diesel Engine by Racine et al. (Renault Vehicules Industriels), Feb. 25-Mar. 1, 1991.
15 * SAE Paper No. 910252 Development of New Electronically Controlled Fuel Injection System ECD U2 for Diesel Engines by Miyaki et al (Nippondenso Co., Ltd.), 1991.
16 SAE Paper No. 910252 Development of New Electronically Controlled Fuel Injection System ECD-U2 for Diesel Engines by Miyaki et al (Nippondenso Co., Ltd.), 1991.
17 * SAE Paper No. 940897, Reducing Particulate and NOx Emissions by Using Multiple Injections in a Heavy Duty D.I. Diesel Engine, by Tow et al. (U. of Wisconsin Madison), Feb. 28 Mar. 3, 1994.
18 SAE Paper No. 940897, Reducing Particulate and NOx Emissions by Using Multiple Injections in a Heavy Duty D.I. Diesel Engine, by Tow et al. (U. of Wisconsin-Madison), Feb. 28-Mar. 3, 1994.
19 * Servojet Electronic Fuel Injection HSV High Speed Solenoid Valves four page excerpt reprinted from vol. 50, Diesel & Gas Turbine Worldwide Catalog, 1985 edition.
20 * Thesis for Master of Science degree Mechanical Engineering, The Effect of Multiple Pulse Injection, Injection Rate and Injection Pressure on Particulate and NOx Emissions from A D.I. Diesel Engine, by Tryg C. Tow (University of Wisconsin Madison) 1993.
21 Thesis for Master of Science degree--Mechanical Engineering, The Effect of Multiple Pulse Injection, Injection Rate and Injection Pressure on Particulate and NOx Emissions from A D.I. Diesel Engine, by Tryg C. Tow (University of Wisconsin-Madison) 1993.
22 U.S. Application No. 08/172,881 filed Dec. 23, 1993 entitled "Electronically-Controlled Fluid Injector System Having Pre-Injection Pressurizable Fluid Storage Chamber and Direct-Operated Check".
23 * U.S. Application No. 08/172,881 filed Dec. 23, 1993 entitled Electronically Controlled Fluid Injector System Having Pre Injection Pressurizable Fluid Storage Chamber and Direct Operated Check .
24 * U.S. Application No. 08/172,881 filed Dec. 23, 1993 Force Balanced Direct Operated Flow Check for Fuel Injection Nozzle (Gison et al.).
25 U.S. Application No. 08/172,881 filed Dec. 23, 1993 Force-Balanced Direct Operated Flow Check for Fuel Injection Nozzle (Gison et al.).
26 * U.S. Application No. 08/236,406 filed May 2, 1994 Method and Apparatus for Reducing Cavitation and Dynamic Force Imbalance in Hydraulic Valving (Gibson).
27 U.S. Application No. 08/282,136 filed Jul. 28, 1994 entitled "Plunger Retention".
28 * U.S. Application No. 08/282,136 filed Jul. 28, 1994 entitled Plunger Retention .
29 U.S. Application No. 08/282,258 filed Jul. 29, 1994 entitled "Efficient Mixing Nozzle".
30 * U.S. Application No. 08/282,258 filed Jul. 29, 1994 entitled Efficient Mixing Nozzle .
31 U.S. Application No. 08/283,232 filed Jul. 29, 1994 entitled "Check Controlled Heui with Hydraulic Energy Recovery".
32 * U.S. Application No. 08/283,232 filed Jul. 29, 1994 entitled Check Controlled Heui with Hydraulic Energy Recovery .
US5915624 * Nov 3, 1997 Jun 29, 1999 Caterpillar Inc. Fuel injector utilizing a biarmature solenoid
US5934559 * Nov 3, 1997 Aug 10, 1999 Caterpillar Inc., Electronic fuel injector with internal single-pole solenoid and center flow post
US5947380 * Nov 3, 1997 Sep 7, 1999 Caterpillar Inc. Fuel injector utilizing flat-seat poppet valves
US5979789 * Nov 26, 1997 Nov 9, 1999 Cummins Engine Company, Inc. Fuel injector with internal component load protection
US6119959 * Feb 10, 1999 Sep 19, 2000 Caterpillar Inc. Fuel injector with controlled spill to produce split injection
US6196199 * Dec 28, 1999 Mar 6, 2001 Detroit Diesel Corporation Fuel injector assembly having an improved solenoid operated check valve
US6227175 * Dec 27, 1999 May 8, 2001 Detroit Diesel Corporation Fuel injector assembly having a combined initial injection and a peak injection pressure regulator
US6227459 Aug 2, 1999 May 8, 2001 Caterpillar Inc. Valve with self-centering, self-sealing seat component
US6247450 * Dec 27, 1999 Jun 19, 2001 Detroit Diesel Corporation Electronic controlled diesel fuel injection system
US6264116 * Sep 14, 1999 Jul 24, 2001 Lucas Industries Fuel injector
US6321999 * May 14, 1999 Nov 27, 2001 Lucas Industries Plc Fuel injector
US6390116 Jul 16, 2001 May 21, 2002 Illinois Institute Of Technology Large amplitude pneumatic oscillator
US6568369 Dec 5, 2000 May 27, 2003 Caterpillar Inc Common rail injector with separately controlled pilot and main injection
US6595189 * Aug 10, 2001 Jul 22, 2003 Caterpillar Inc Method of reducing noise in a mechanically actuated fuel injection system and engine using same
US6688537 Nov 13, 2001 Feb 10, 2004 Robert Bosch Gmbh Injector loaded from collecting chamber and provided with cascade-shaped control device
US6889658 * Aug 23, 2002 May 10, 2005 Robert Bosch Gmbh Fuel injection device for an internal combustion engine
US7156368 Apr 14, 2004 Jan 2, 2007 Cummins Inc. Solenoid actuated flow controller valve
US7331329 Jul 15, 2002 Feb 19, 2008 Caterpillar Inc. Fuel injector with directly controlled highly efficient nozzle assembly and fuel system using same
US7578279 Oct 3, 2005 Aug 25, 2009 Point-Man Aeronautics, Llc Fuel injection spark ignition system
US7802588 Oct 12, 2007 Sep 28, 2010 Parker-Hannifin Corporation Three-way poppet valve with internal check feature
US8763989 Sep 1, 2010 Jul 1, 2014 Parker-Hannifin Corporation Three-way poppet valve with internal check feature
US20040065294 * Aug 23, 2002 Apr 8, 2004 Joachim Winter Fuel injection device for an internal combustion engine
US20050230494 * Apr 14, 2004 Oct 20, 2005 Cummins Inc. Solenoid actuated flow controller valve
US20070261676 * Oct 3, 2005 Nov 15, 2007 Ehresman Thomas E Fuel Injection Spark Ignition System
US20080087343 * Oct 12, 2007 Apr 17, 2008 Parker-Hannifin Corporation Three-way poppet valve with internal check feature
DE10012552A1 * Mar 15, 2000 Sep 27, 2001 Bosch Gmbh Robert Injector device for internal combustion engine; has high pressure line opening into control chamber of nozzle needle and two control valves connected to low pressure areas on discharge side
DE10056165A1 * Nov 13, 2000 May 23, 2002 Bosch Gmbh Robert Fuel injector, for internal combustion engine, has dual supply to discharge nozzle from valve controlled primary chamber and second chamber, both discharging through output needle nozzle.
DE10056165C2 * Nov 13, 2000 Jun 12, 2003 Bosch Gmbh Robert Sammelraumbeaufschlagter Injektor mit kaskadenförmiger Steuerungsanordnung
DE10060836C1 * Dec 7, 2000 Jul 25, 2002 Bosch Gmbh Robert Druckgesteuerter CR Injektor mit gestuftem Öffnungs- und Schließverhalten
DE19956519A1 * Nov 24, 1999 Jun 7, 2001 Bosch Gmbh Robert Vorrichtung zum Einspritzen eines Fluides mit variablem Einspritzdruck
DE19956519B4 * Nov 24, 1999 May 27, 2004 Robert Bosch Gmbh Vorrichtung zum Einspritzen eines Fluides mit variablem Einspritzdruck
EP0987432A2 * Sep 13, 1999 Mar 22, 2000 Lucas Industries Limited Fuel injector
EP0987432A3 * Sep 13, 1999 Apr 11, 2001 Delphi Technologies, Inc. Fuel injector
EP1113168A2 * Nov 23, 2000 Jul 4, 2001 Detroit Diesel Corporation Fuel injector assembly having an improved solenoid operated check valve
EP1113168A3 * Nov 23, 2000 Feb 11, 2004 Detroit Diesel Corporation Fuel injector assembly having an improved solenoid operated check valve
EP1793118A1 * Dec 2, 2005 Jun 6, 2007 OMT Officine Meccaniche Torino S.p.A. Injector for large diesel engines operating with heavy fuel oil, controlled by an electronically controlled valve
WO1999006690A1 * Apr 3, 1998 Feb 11, 1999 Robert Bosch Gmbh Fuel injection device for internal combustion engines
WO2000014399A1 * Aug 13, 1999 Mar 16, 2000 Caterpillar Inc. Valve assembly with concentrically linked components and fuel injector using same
WO2001071177A2 * Mar 20, 2001 Sep 27, 2001 Robert Bosch Gmbh Method and device for influencing the injection pressure distribution on injectors
WO2001071177A3 * Mar 20, 2001 Oct 9, 2003 Bosch Gmbh Robert Method and device for influencing the injection pressure distribution on injectors
WO2001071178A3 * Mar 20, 2001 Oct 9, 2003 Bosch Gmbh Robert Fuel injection device with a variable injection pressure profile
U.S. Classification 123/446, 239/585.2, 239/88, 123/506
International Classification F02M57/02, F02M59/46, F02M59/10, F02M47/02, F02M59/36
Cooperative Classification Y02T10/123, F02M63/0047, F02M63/0061, F02M63/0064, F02B2275/14, F02M63/0017, F02M63/0015, F02M59/366, F02M57/023, F02M63/0049, F02M57/02, F02M59/102, F02M47/027, F02M59/466
European Classification F02M63/00E2B1, F02M63/00E10B, F02M63/00E4H, F02M59/46E, F02M59/10B, F02M47/02D, F02M57/02C1, F02M57/02, F02M59/36D, F02M63/00E10F, F02M63/00E2B, F02M63/00E4G