Source: http://www.google.com/patents/US4469316?dq=5,960,411
Timestamp: 2017-04-30 16:13:19
Document Index: 669768740

Matched Legal Cases: ['art 2', 'arts 2', 'art 9', 'art 10', 'art 9', 'art 9']

Patent US4469316 - Elastomeric mount with hydraulic damping - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA mount for securing together two relatively displaceable bodies, such as a motor-vehicle engine and a vehicle chassis, with limited relative freedom of movement has a substantially closed liquid-filled chamber formed by a first resiliently deformable wall and a second wall which may be rigid or resiliently...http://www.google.com/patents/US4469316?utm_source=gb-gplus-sharePatent US4469316 - Elastomeric mount with hydraulic dampingAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS4469316 APublication typeGrantApplication numberUS 06/446,244Publication dateSep 4, 1984Filing dateDec 2, 1982Priority dateJan 24, 1978Fee statusPaidAlso published asDE2802896A1, DE2802896C2Publication number06446244, 446244, US 4469316 A, US 4469316A, US-A-4469316, US4469316 A, US4469316AInventorsJohannes van den Boom, Wilfried Leitner, Gert Salewsky, Hans-Peter GassenOriginal AssigneeAudi Nsu Auto Union AgExport CitationBiBTeX, EndNote, RefManPatent Citations (6), Referenced by (39), Classifications (5), Legal Events (8) External Links: USPTO, USPTO Assignment, EspacenetElastomeric mount with hydraulic damping
US 4469316 AAbstract
A mount for securing together two relatively displaceable bodies, such as a motor-vehicle engine and a vehicle chassis, with limited relative freedom of movement has a substantially closed liquid-filled chamber formed by a first resiliently deformable wall and a second wall which may be rigid or resiliently deformable. A partition subdivides this chamber into a pair of compartments and has an elastically deformable and relatively stiff portion and an elastically deformable and relatively yieldable portion. One of these portions is formed with a throughgoing orifice. Stops are provided on each side of the relatively yieldable portion to limit the deflection thereof so that low-amplitude vibrations are not transmitted between the bodies, but high-amplitude vibrations are damped when the yieldable portion abuts the stops.
1. A mount for securing two relatively displaceable bodies to each other with limited relative freedom of movement, comprising:a resiliently deformable first wall adapted to be secured to one of the bodies; a second wall forming with said first wall a substantially closed chamber filled with a hydraulic liquid, said second wall being securable to the other of said bodies; a substantially continuous partition subdividing said chamber into a pair of compartments respectively bounded by said first and second walls, said partition including(a) an elastically deformable and relatively stiff imperforate annular outer portion extending radially inward from a junction of said walls, (b) an elastically deformable and relatively yieldable imperforate annular intermediate portion of lesser thickness than said outer portion extending radially inward from said outer portion, (c) a rigid central portion of substantially the same thickness as said intermediate portion disposed within and supported by said intermediate portion, said central portion having at least one throughgoing orifice; and a pair of apertured annular stop members spacedly bracketing said central and intermediate portions, said stop members being supported on opposite surfaces of said outer portion adjacent an inner periphery thereof and at a radial distance from said walls for limiting the amplitudes of excursions of said central portion relative to said outer portion, the spacing of said stop members from each other being at least equal to the thickness of said outer portion. 2. The mount defined in claim 1 wherein said portions are unitary and said yieldable portion is a relatively thin web, said stiff portion being relatively thick.
This application is a continuation of our now abandoned application Ser. No. 001,052 filed Jan. 4, 1979.
Our present invention relates to an elastomeric mount with hydraulic damping, serving to interconnect two relatively displaceable bodies. More particularly, this invention concerns such a mount preferably for mounting an internal-combustion engine in an automotive vehicle and having a damping-fluid-filled working chamber defined on one side by a load-bearing elastomeric first wall connected with a support block and bounded on the other side by a second wall, this chamber being subdivided into two compartments by a movable partition having at least one throttle hole.
U.S. Pat. No. 2,387,065 describes a type of elastomeric mount. In this elastomeric mount a working chamber filled with fluid is subdivided by a partitioning membrane into two compartments and the partitioning membrane is connected by a rigid part, having a throttle orifice, with a support block and with a supporting elastomeric element. On compression of the mount downwardly, fluid which is pressurized in the lower compartment is bled through the throttle passage into the upper compartment. Good damping characteristics of the bearing are only obtained when the partition membrane is relatively stiff, so that during compresssion it does not yield to the increased pressure and force considerable damping liquid to flow through the throttle orifice.
It is an object of the invention to provide an elastomeric mount with good damping characteristics in the range of low-frequency vibrations of large amplitude and with little sound-transmission stiffness in the range of higher-frequency vibrations with small amplitudes.
This object is attained according to the instant invention in a mount of the above-described type wherein at least a portion of the movable partition has a limited inherent stiffness which increases greatly with increasing deformation.
The working chamber of the mount shown in FIG. 1 is formed between an upper elastomeric element 2 vulcanized to a support block 1 and a lower elastomeric part 2a, the elastomeric parts 2 and 2a as well as a movable partition 5 which subdivides the working chamber into two compartments 4 and 4a being connected to a flange 3. The movable partition 5 is formed of an imperforate outer ring 8, integral with wall 2a, a rigid central part 9 with throttle orifices 6, and an imperforate elastic annular intermediate part 10 connecting the ring 8 and the rigid central part 9. The rigid central part 9 is arranged between two deflection limiters or stop members 11 and 12 carried on opposite surfaces of ring 8 adjacent its inner periphery, thus at a radial distance of the junction of chamber walls 2, 2a.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS2387065 *Dec 11, 1943Oct 16, 1945Edmund J LadaMountingUS2387066 *Mar 22, 1944Oct 16, 1945Edmund J LadaMount supportUS2696980 *Sep 9, 1952Dec 14, 1954Holley Carburetor CoAntistall deviceUS4159091 *Jun 21, 1977Jun 26, 1979Automobiles PeugeotDamper device, in particular for the suspension of an engineUS4161241 *Dec 12, 1977Jul 17, 1979Colt Industries Operating Corp.Dashpot apparatus including a flexible diaphragm pistonUS4199128 *Aug 9, 1978Apr 22, 1980Audi Nsu Auto Union AktiengesellschaftVibration absorbing elastomeric mount with hydraulic damping* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS4568069 *Feb 4, 1985Feb 4, 1986Automobiles PeugeotElastically yieldable mount, in particular for the suspension of a vehicle engineUS4583723 *Jun 7, 1984Apr 22, 1986Toyoda Gosei Co., Ltd.Elastically damping device for suspension of engineUS4630803 *Jan 22, 1985Dec 23, 1986Daimler-Benz AktiengesellschaftSuspension-strut mounting for installation between a shock-absorber strut or spring strut and a vehicle body spring-supported with respect to the axles, in particular of a motor vehicleUS4641808 *Feb 22, 1985Feb 10, 1987Flower Wallace CDynamic vibration attenuator utilizing inertial fluidUS4651980 *Feb 20, 1985Mar 24, 1987Honda Giken Kogyo Kabushiki KaishaVibration isolatorUS4667749 *Mar 19, 1985May 26, 1987Metabowerke Gmbh & Co.Damping element, and its installation in a motor-driven hand toolUS4679759 *Dec 24, 1984Jul 14, 1987Ford Motor CompanyAssembly for mounting a vibrating bodyUS4738435 *Jul 21, 1986Apr 19, 1988Flower Wallace CFluid filled vibration isolator which operates quietly over broad frequency and amplitude rangesUS4742999 *May 16, 1986May 10, 1988Flower Wallace CQuiet acting fluid filled vibration isolator having predictable low level high frequency minimum dynamic stiffnessUS4746104 *Dec 8, 1986May 24, 1988General Motors CorporationHydraulic exhaust pipe hanger mountUS4753422 *Jan 30, 1986Jun 28, 1988Thorn Richard PQuiet acting low friction decouplers for fluid filled vibration isolatorsUS4757982 *Nov 29, 1985Jul 19, 1988Metzeler Kautschuk GmbhEngine mount with hydraulic dampingUS4778158 *May 15, 1987Oct 18, 1988General Motors CorporationElectronic motor mount with magnetic decouplerUS4784378 *Nov 14, 1985Nov 15, 1988Ford Motor CompanyVibrating body mounting assemblyUS4787611 *Apr 8, 1987Nov 29, 1988Firma Carl FreudenbergHydraulically damped engine mount having improved throttle portsUS4796876 *Apr 8, 1987Jan 10, 1989Firma Carl FreudenbergEngine mountUS4800965 *May 18, 1987Jan 31, 1989Metabowerke Gmbh & Co.Damping element, and its installation in a motor-driven hand toolUS4811934 *Mar 17, 1988Mar 14, 1989Continental AktiengesellschaftHydraulically damped resilient mountingUS4815720 *Oct 29, 1987Mar 28, 1989Pirelli Accessori Industriali S.P.A.Damping device with elastomeric diaphragm forming conduit wallUS4856750 *Apr 13, 1988Aug 15, 1989Automobiles PeugeotHydroelastic support, in particular for the suspension of a vehicle engineUS4893797 *Jul 6, 1988Jan 16, 1990Automobiles PeugeotHydroelastic support, in particular for the suspension of a motor in a vehicleUS5029823 *Oct 30, 1989Jul 9, 1991Lord CorporationVibration isolator with electrorheological fluid controlled dynamic stiffnessUS5078369 *Mar 8, 1989Jan 7, 1992Automobiles PeugeotElastically yieldable connection with a hydraulic stiffeningUS5340093 *Jul 20, 1992Aug 23, 1994Firma Carl FreudenbergHydraulically damped rubber bearingUS5346189 *Nov 24, 1993Sep 13, 1994Firma Carl FreudenbergHydraulically damped rubber bearingUS5431377 *Aug 19, 1993Jul 11, 1995General Motors CorporationOne-piece partition for a hydraulic engine mountUS5681032 *Jan 25, 1996Oct 28, 1997Metzeler Gimetall AgEngine mount with controllable rigidityUS6334421Jun 25, 1999Jan 1, 2002Dolmar GmbhMotor sawUS7168210 *Nov 10, 2003Jan 30, 2007Neil KrovatsSupport block and system for use on roofsUS7866093Sep 11, 2006Jan 11, 2011Neil KrovatsRoof object support systemUS8966773Jul 6, 2012Mar 3, 2015Techtronic Power Tools Technology LimitedPower tool including an anti-vibration handleUS9315990Nov 19, 2012Apr 19, 2016Clearline Technologies Ltd.Roof object support systemUS20050097836 *Nov 10, 2003May 12, 2005Neil KrovatsSupport block and system for use on roofsUS20070022676 *Sep 11, 2006Feb 1, 2007Neil KrovatsRoof object support systemUS20160053845 *Aug 6, 2015Feb 25, 2016Bridgestone CorporationVibration isolatorUSD738711Aug 30, 2013Sep 15, 2015Cooper Technologies CompanyRooftop supportUSD758834Aug 7, 2015Jun 14, 2016Cooper Technologies CompanyRooftop supportDE102004001757B4 *Jan 12, 2004Apr 12, 2007Ims Gear GmbhFlanschartige Vorrichtung zur mechanischen Verbindung eines ersten Gehäuses mit einem zweiten GehäuseWO2000000330A1 *Jun 25, 1999Jan 6, 2000Dolmar GmbhMotor saw* Cited by examinerClassifications U.S. Classification267/140.13, 267/113International ClassificationF16F13/08Cooperative ClassificationF16F13/08European ClassificationF16F13/08Legal EventsDateCodeEventDescriptionMay 6, 1985ASAssignmentOwner name: AUDI AKTIENGESELLSCHAFTFree format text: CHANGE OF NAME;ASSIGNOR:AUDI NSU AUTO UNION AKTIENGESELLSCHAFT;REEL/FRAME:004397/0340Effective date: 19850211Apr 5, 1988REMIMaintenance fee reminder mailedSep 4, 1988REINReinstatement after maintenance fee payment confirmedNov 22, 1988FPExpired due to failure to pay maintenance feeEffective date: 19880904Oct 30, 1989FPAYFee paymentYear of fee payment: 4Oct 30, 1989SULPSurcharge for late paymentMay 1, 1990DPNotification of acceptance of delayed payment of maintenance feeFeb 24, 1992FPAYFee paymentYear of fee payment: 8RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services