Source: http://www.google.com/patents/US4111163?dq=6,205,432
Timestamp: 2016-02-13 04:56:42
Document Index: 611210279

Matched Legal Cases: ['art.\n2', 'art 6', 'art 7', 'art 106', 'art 107', 'art 106', 'art 106', 'arts 206', 'art 206', 'art 207', 'arts 206', 'arts 206', 'arts 206']

Patent US4111163 - Air induction system for an internal combustion engine - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsThe invention provides an air induction system or manifold for a multi-cylinder internal combustion engine, which is arranged in two parts, the first having portions of the induction passages for each cylinder formed therein, and the second attached to the first to form a housing therewith in communication...http://www.google.com/patents/US4111163?utm_source=gb-gplus-sharePatent US4111163 - Air induction system for an internal combustion engineAdvanced Patent SearchPublication numberUS4111163 APublication typeGrantApplication numberUS 05/598,086Publication dateSep 5, 1978Filing dateJul 22, 1975Priority dateJan 15, 1975Also published asDE2501305A1Publication number05598086, 598086, US 4111163 A, US 4111163A, US-A-4111163, US4111163 A, US4111163AInventorsGeorg Ederer, Adolf Fischer, Paul Rosche, Helmar Troll, Wolfgang Wurst, Helmut Hengl, Jiri SeidlOriginal AssigneeBayerische Motoren Werke AgExport CitationBiBTeX, EndNote, RefManPatent Citations (4), Referenced by (24), Classifications (20) External Links: USPTO, USPTO Assignment, EspacenetAir induction system for an internal combustion engine
US 4111163 AAbstract
1. In combination, an internal combustion engine and an air induction system therefor, said air induction system having an air inlet opening, a distributor housing, and a plurality of induction passages, said induction passages having their respective inlets disposed in the distributor housing and respective outlets for connection to respective inlet ports of the engine, each induction passage consisting of a first portion and a second portion in series between the inlet and the outlet thereof, the first portion defining said inlet and the second portion defining said outlet, the distributor housing comprising a first pressure die cast part which defines said second portions of the induction passages, and a second part in which said air inlet is formed and which is joined to said first part to form said distributor housing therewith, and said indirection system further including a plurality of further parts defining the first portions of said induction passages respectively, and each of said further parts being curved and consisting of a separate member mounted on said first pressure die cast part.
2. A combination according to claim 1, wherein the second portion of each induction passage is provided with an integral flange at the outlet end thereof for mounting the induction system on a face of the engine, and the internal cross-section of the second portion widens towards one or both ends thereof.
3. A combination according to claim 1, wherein said first portions are disposed so that their ends adjacent said housing are closer together than their ends remote from said housing.
4. A combination according to claim 3, wherein said first portions are disposed symmetrically about a middle tranverse plane through said housing, at least some of said first portions extending at an angle to said transverse plane.
5. A combination according to claim 1, wherein said first portions are each of the same configuration, and a respective cylindrical depression is provided in said first part in register with the respective second portion to receive one end of each first portion.
6. A combination according to claim 5, wherein a key is provided disposed between each said first portion and its respective cylindrical depression to angularly locate the first portions therein, the keys being located in the depressions according to the required angular disposition of the first portion.
7. A combination according to claim 5, wherein said first portions are moulded from synthetic plastics material, and each have a key formed integrally therewith, a keyway being provided in the respective depression to receive that key thereby to locate the first portions in the required angular disposition.
8. A combination according to claim 1, wherein said housing is provided with fixing lugs and apertures for fuel injection nozzles associated with each said induction passage.
9. A combination according to claim 1, wherein each said first portion is mounted separately on said first part and extends within said second part, each first portion being curved through substantially 180�.
It is indeed known for parts of the induction passages to be sand-cast in one piece with a distributor housing or a part thereof as for instance disclosed in U.S. Pat. No. 2,928,564. In contrast, the advantage of the invention resides in the fact that one part of the distributor housing can be produced by pressure die casting integrally with portions of the induction passage, while the other part or parts can be produced in each case in one piece, by the pressure die casting or permanent mold casting method from light metal or synthetic plastics material so that the entire air induction system consists of parts which can be rationally produced and connected. In this respect, the internal cross-section of the induction passages widening out towards one end or both, is not only of advantage in the casting of the part by permitting easy removal from the casting die, but is at the same time also advantageous to the operation of the air induction system because the internal cross-sectional pattern and thus the flow conditions therein can be tuned to the requirements of the particular type of internal combustion engine involved.
The pivoting together of those ends of the curved portions which discharge into the distributor housing makes it possible for the distributor housing to be tapered at least to one side, corresponding to the pivoted position of the portions, so that its design is particularly space-saving. In its longitudinal section, then, the distributor housing approximates the form of a triangle and can thus be better adapted to motor vehicles having bonnets which extend forwards in an obliquely downwards direction. If the curved portions are pivoted from both sides toward a middle transverse plane of the distributor housing, then this latter becomes approximately trapezoidal in cross-section.
As shown in FIG. 1, in a first embodiment a two-part air induction system 4 is mounted through fixing flanges 3, by means of screws 5, on the cylinder head of an internal combustion engine 1, on the long face 2 thereof, being formed with mouths of inlet ports (not shown). The air induction system 4 includes a first part 6 and a second part 7 which are joined to each other along a plane 8 so that they form a distributor housing 9.
In the embodiment of the invention shown in FIGS. 2 and 3, there is on the face 2 of the internal combustion engine 1 an air induction system 104 which is attached by means of bolts 105, through fixing flanges 103 and which has an air inlet connection 115. A distributor housing 109 is formed by the first part 106 and the second part 107 which abut each other on a plane 108, being tightly connected by screws or by adhesive. Integrally cast on the outside of the first part 106 of the distributor housing 109 are slightly angled outer portions 111 of the induction passages 110 which form the connections to the cylinder head of the internal combustion engine 1. Disposed inside the distributor housing 109 are portions 113 of the induction passages 110 which are curved through approximately 180�. The curved portions 113 of the induction passages 110 are constructed so that they are each the same as one another. They are centred in cylindrical depressions 118 formed in the first part 106 of the distributor housing 109 and are so secured that their longitudinal axes 119 form different angles, as seen in FIG. 3, with respect to the middle transverse plane 120 of the distributor housing 109. The angles about which the curved portions 113 are inclined become greater with increasing distance from the transverse plane 120. The free ends 121 of the curved portions 113 consequently lie closer to one another and closer to the middle transverse plane 120 of the distributor housing 109 than their associated connection ends 122 which are secured in the depressions 118. Since the curved portions 113 are of equal length, their free ends 121 are at different distances from the connecting line between the connecting ends 122 which are disposed in one row. This does not result in any disadvantageous effect on the induction flow, but there is a considerable saving in space in the region of the outer free ends 121.
In the embodiment of the invention shown in FIGS. 4 and 5, the air induction system 204 consists of a two-part induction distributor housing 209, in the first and second parts 206 and 207 of which are integrally cast respectively portions 211 and 213 of longitudinally divided induction passages 210. Each portion 211 cast in the first part 206 of the distributor housing 209 lies in register with a respective portion 213 cast in the second part 207, in the plane 208 of the joint between the parts 206 and 207, both, contact faces 216 and 217, of the parts 206 and 207, connected to one another in sealing-tight fashion by adhesive or by other means of connection. To enlarge the surfaces 216 and 217, flanges are formed on the parts 206 and 207 in the region of the plane 208.
The air induction system according to the above embodiments of the invention is ideal for rational series production. The production of at least one part of the air induction system as a one-piece pressure die-cast component which is connected to the other possibly likewise pressure die-cast or permanent mold cast part, provides in comparison with known embodiments of air induction systems, a functionally advantageous and cost-wise considerably more favourable construction.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS1938252 *Dec 9, 1929Dec 5, 1933Julius E HamacheckCooler for fuel gasesUS2835235 *Jun 20, 1955May 20, 1958Daimler Benz AgIntake manifold for internal combustion enginesUS3177854 *Jan 28, 1964Apr 13, 1965Alfa Romeo SpaResonance induction device for internal-combustion enginesUS3916850 *Feb 25, 1974Nov 4, 1975Honda Motor Co LtdIntake and exhaust manifold assembly for internal combustion engine* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS4183332 *Jan 19, 1978Jan 15, 1980Volkswagenwerk AktiengesellschaftIntake systemUS4194043 *Jun 5, 1978Mar 18, 1980Chrysler CorporationWelded aluminum die cast articleUS4228769 *Mar 13, 1978Oct 21, 1980Bayerische Motoren Werke AktiengesellschaftIntake-pipe arrangement for in-line internal combustion enginesUS4257368 *Dec 5, 1978Mar 24, 1981Volkswagenwerk AktiengesellschaftSound insulated internal combustion engineUS4301775 *May 25, 1979Nov 24, 1981Ford Motor CompanyManifolds for internal combustion enginesUS4341186 *Apr 7, 1980Jul 27, 1982Bayerische Motoren Werke AktiengesellschaftAir intake system for a multi-cylinder internal combustion engineUS4440120 *May 24, 1982Apr 3, 1984General Motors CorporationCompact ram tube engine air intake manifoldUS4471615 *Jul 22, 1982Sep 18, 1984Kabushiki Kaisha Komatsu SeisakushoTurbo and inertia superchargerUS4563984 *Sep 20, 1984Jan 14, 1986Dr. Ing. H.C.F. Porsche AktiengesellschaftSuction pipe apparatus for an internal-combustion engineUS4760819 *Jul 16, 1987Aug 2, 1988Vorum Peter CShort pipe manifold for four-stroke enginesUS4768487 *Nov 13, 1986Sep 6, 1988Nissan Motor Company, LimitedInternal combustion engine intake passageUS4803962 *Dec 30, 1987Feb 14, 1989Mitsubishi Jidosha Kogyo Kabushiki KaishaIntake passage apparatus for internal combustion engineUS5003933 *Nov 6, 1989Apr 2, 1991General Motors CorporationIntegrated induction systemUS5094194 *Aug 6, 1990Mar 10, 1992General Motors CorporationIntegrated induction systemUS5138983 *Jun 25, 1991Aug 18, 1992Siemens Automotive L. P.Intake manifold/fuel railUS5477819 *Jan 25, 1995Dec 26, 1995Filterwerk Mann & Hummel GmbhIntegrated air intake systemUS5636605 *Jun 22, 1995Jun 10, 1997Toyota Jidosha K.K.Composite intake manifold for an internal combustion engineUS5642697 *Jun 6, 1996Jul 1, 1997Volkswagen AgIntake manifold for an internal combustion engineUS5896838 *May 7, 1996Apr 27, 1999Magneti Marelli FranceIntake manifold for internal combustion engineUS5964194 *May 20, 1996Oct 12, 1999Magneti Marelli FranceInlet manifold with ringed air tubes for an internal combustion engineUS6092499 *Jul 4, 1996Jul 25, 2000Filterwerk Mann & Hummel GmbhIntake pipeUS6267093Aug 2, 2000Jul 31, 2001Ford Global Technologies, Inc.Bonded composite intake manifoldUS8181620 *Aug 11, 2008May 22, 2012Mark IV Systems Moteurs USA, Inc.Modular intake manifoldUS20100031913 *Aug 11, 2008Feb 11, 2010Rolland Francis VModular intake manifold* Cited by examinerClassifications U.S. Classification123/184.42, 123/184.61International ClassificationF02M35/10Cooperative ClassificationF02M35/10321, F02M35/10111, F02M35/10327, F02M35/10072, F05C2225/08, F02M35/10216, F02M35/10039, F02M35/112, F02M35/10347, F02M35/10118European ClassificationF02M35/10F2, F02M35/10A6D, F02M35/10A8, F02M35/10D8, F02M35/10N2, F02M35/112, F02M35/10D6RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services