US4573656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-sealed engine mounting
Assignee: Honda Motor Co Ltd
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Filing: 1984-07-23
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Granted: 1986-03-04
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Expires: 2004-07-23
Abstract
Abstract A fluid-sealed engine mounting has a connector adapted to be connected to an engine, a base adapted to be connected to a vehicle frame, an elastic member joined between the connector and the base and elastically deformable in response to vibrations transmitted thereto, the connector, the base, and the elastic member jointly defining a fluid chamber in which a fluid is sealed, and a partition dividing the fluid member into a first chamber adjacent to the connector and a second chamber adjacent to the base, the partition having an orifice through which the first and second chambers communicate with each other. The engine mounting also includes a diaphragm mounted on the base or the connector for varying the volume of one of the first and second chambers when vibrations are transmitted to the engine mounting.
Inventors
- 👤 Hiroshi Yoshida
- 👤 Takefumi Toyoshima
- 👤 Tomio Iwabori
- 👤 Hideaki Ohkura
- 👤 Yasuo Miyamoto
- 👤 Izumi Nishimura
- 👤 Toshiyuki Oikawa
- 👤 Kenji Sekijima
- 👤 Makoto Ohashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:41
CPC Classifications
F; F16; F16F; F16F13/00; F16F13/04; F16F13/06; F16F13/08; F16F13/10; F16F13/105; F16F13/107
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
196 words
A fluid-sealed engine mounting for mounting an engine on a vehicle frame, comprising: (a) a connector adapted to be connected to the engine; (b) a base adapted to be connected to the vehicle frame; (c) an elastic member joined between said connector and said base and elastically deformable in response to vibrations transmitted thereto, said connector, said base and said elastic member jointly defining a fluid chamber in which a fluid is sealed; (d) a partition being entirely disposed intermediate said connector and said base and dividing said fluid chamber into a first chamber adjacent to said connector and a second chamber adjacent to said base, said partition having an orifice through which said first and said second chambers communicate with each other; and (e) a diaphragm mounted on one of said connector or said base for varying the volume of one of said first and second chambers when vibrations are transmitted to the engine mounting, said base comprises a frustoconical tubular body mounted on an end of said elastic member and having a radially outwardly projecting flange on the end thereof closer to said connector, said flange including means for attachment to the vehicle frame.
Claim 2
Dependent Claim
196 words
A fluid-sealed engine mounting for mounting an engine on a vehicle frame, comprising: (a) a connector adapted to be connected to the engine; (b) a base adapted to be connected to the vehicle frame; (c) an elastic member joined between said connector and said base and elastically deformable in response to vibrations transmitted thereto, said connector, said base and said elastic member jointly defining a fluid chamber in which a fluid is sealed; (d) a partition being entirely disposed intermediate said connector and said base and dividing said fluid chamber into a first chamber adjacent to said connector and a second chamber adjacent to said base, said partition having an orifice through which said first and said second chambers communicate with each other; and (e) a diaphragm mounted on one of said connector or said base for varying the volume of one of said first and second chambers when vibrations are transmitted to the engine mounting, said base comprises a frustoconical tubular body mounted on an end of said elastic member and having a radially outwardly projecting flange on the end thereof closer to said connector, said flange including means for attachment to the vehicle frame.
Claim 3
Dependent Claim
57 words
A fluid-sealed engine mounting according to claim 1, wherein said elastic member has a first portion defining a portion of said first chamber and a second portion defining a portion of said second chamber, said partition comprising a plate joined between said first and second portions of said elastic member, said diaphragm being mounted on said base.
Claim 4
Dependent Claim
40 words
A fluid-sealed engine mounting according to claim 2, wherein said first and second portions of said elastic member have respective holes having substantially the same diameter as that of said orifice in said partition and disposed concentrically with said orifice.
Claim 5
Dependent Claim
16 words
A fluid-sealed engine mounting according to claim 1, wherein said diaphragm is mounted on said connector.
Claim 6
Dependent Claim
42 words
A fluid-sealed engine mounting according to claim 1, wherein said partition comprises a cylindrical body having an axis aligned with an axis of the engine mounting, said orifice comprising a helical groove defined in an outer peripheral surface of said cylindrical body.
Claim 7
Dependent Claim
29 words
A fluid-sealed engine mounting according to claim 5, including a sleeve joined to an inner peripheral surface of said elastic member, said cylindrical body being forcefitted in said sleeve.
Claim 8
Dependent Claim
183 words
A fluid-sealed engine mounting for mounting an engine on a vehicle frame, comprising: (a) a connector adapted to be connected to the engine; (b) a base adapted to be connected to the vehicle frame; (c) an elastic member joined between said connector and said base and elastically deformable in response to vibrations transmitted thereto, said connector, said base, and said elastic member jointly defining a fluid chamber in which a fluid is sealed; (d) a partition comprising a circular body having an axis aligned with the axis of the engine mounting and dividing said fluid chamber into a first chamber adjacent to said connector and a second chamber adjacent to said base, said partition having an orifice comprising a spiral groove defined in said circular member and extending spirally and radially outwardly from said axis on the circular member through which said first and second chambers communicate with each other; and (e) a diaphragm mounted on one of said connector and said base for varying the volume of one of said first and second chambers when vibrations are transmitted to the engine mounting.
Claim 9
Dependent Claim
183 words
A fluid-sealed engine mounting for mounting an engine on a vehicle frame, comprising: (a) a connector adapted to be connected to the engine; (b) a base adapted to be connected to the vehicle frame; (c) an elastic member joined between said connector and said base and elastically deformable in response to vibrations transmitted thereto, said connector, said base, and said elastic member jointly defining a fluid chamber in which a fluid is sealed; (d) a partition comprising a circular body having an axis aligned with the axis of the engine mounting and dividing said fluid chamber into a first chamber adjacent to said connector and a second chamber adjacent to said base, said partition having an orifice comprising a spiral groove defined in said circular member and extending spirally and radially outwardly from said axis on the circular member through which said first and second chambers communicate with each other; and (e) a diaphragm mounted on one of said connector and said base for varying the volume of one of said first and second chambers when vibrations are transmitted to the engine mounting.
Claim 10
Dependent Claim
82 words
A fluid-sealed engine mounting according to claim 7, wherein said circular body comprises a pair of circular members having axial central through holes, respectively, said spiral groove comprising spiral groove halves defined in confronting surfaces of said circular members, said partition further including a shield plate disposed between said circular members and blocking fluid communication between said central through holes and between said spiral groove halves, said shield plate having a hole providing fluid communication between said spiral groove halves only therethrough.
Claim 11
Dependent Claim
80 words
A fluid-sealed engine mounting according to claim 1, wherein said base comprises a frustoconical tubular body mounted on an end of said elastic member and having a radially outwardly projecting flange on the end thereof closer to said connector, said flange including means for attachment to the vehicle frame, a second diaphragm defining a portion of said second chamber and having a peripheral edge joined to an end of said radially outwardly projecting flange which is remote from said connector.
Claim 12
Dependent Claim
19 words
A fluid-sealed engine mounting according to claim 9, including means for preventing said second diaphragm from being excessively deformed.
References Cited (Backward Citations)
US3140783A
Cited
DE2621725A1
Cited
US4161304A
Cited
US4391435A
Cited
US4277056A
Cited
JPS55149436A
Cited
JPS56143839A
Cited
EP0040290A2
Cited
US4424960A
Cited
JPS5722434A
Cited
US4491304A
Cited
US4483521A
Cited
US4492366A
Cited
JPS5872740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-03 | 1989-09-02 | 1990-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-03 | 1993-09-02 | 1994-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-03 | 1997-09-02 | 1998-03-04 | $7700.00 | Window Closed / Lapsed |