Patent US1282734A successfully refreshed from Google Patents.
Patent US4492366A successfully refreshed from Google Patents.
US4492366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastically damping device for the suspension of an engine
Assignee: Toyoda Gosei Co Ltd
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Filing: 1982-09-29
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Granted: 1985-01-08
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Expires: 2002-09-29
Abstract
Abstract An elastically damping device for the suspension of an engine comprises a conical first fluid chamber which is formed in the bottom portion of a frustoconical elastically deformable block, and a second fluid chamber which is formed on the upper surface of the block by fixing the open end of an elastically deformable thin sheet thereto. The top portion of the first fluid chamber and the second fluid chamber are interconnected to each other by way of an open passageway which is formed in the block. The first fluid chamber, the second fluid chamber and the open passageway are filled with a liquid. This device is supported on a body of a vehicle by a first supporting plate which is connected to the under surface of the block and the engine is mounted on the block by a second supporting plate which is connected to the upper surface of the block.
Inventors
- 👤 Isao Ozawa
- 👤 Yukio Aono
- 👤 Masato Ueno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:50
CPC Classifications
F; F16; F16F; F16F13/00; F16F13/04; F16F13/06; F16F13/08; F16F13/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
211 words
An elastically damping device for the suspension of an engine comprising: an elastically yielding block having an upper surface and an under surface which is in parallel with said upper surface; a first supporting plate for supporting said block on a body of a vehicle, which is connected to said under surface of said block; a second supporting plate for mounting said engine on said block, which is connected to said upper surface of said block; said block being provided with a conical cavity which is formed in the bottom portion thereof so as to open in said under surface, and a passageway which is formed from the top portion of said cavity to said upper surface of said block in the vertical direction; the diameter of said passageway being changeable as said block yields upon receiving engine vibration of large amplitude; a bottom plate which is fixed to said under surface of said block and covers said cavity to form a first fluid chamber; an elastically yieldable sheet member of which peripheral end is fixed to said upper surface of said block around the opening of said passageway to form a second fluid chamber; said first fluid chamber, said second fluid chamber and said passageway being filled with a liquid.
Claim 2
Dependent Claim
211 words
An elastically damping device for the suspension of an engine comprising: an elastically yielding block having an upper surface and an under surface which is in parallel with said upper surface; a first supporting plate for supporting said block on a body of a vehicle, which is connected to said under surface of said block; a second supporting plate for mounting said engine on said block, which is connected to said upper surface of said block; said block being provided with a conical cavity which is formed in the bottom portion thereof so as to open in said under surface, and a passageway which is formed from the top portion of said cavity to said upper surface of said block in the vertical direction; the diameter of said passageway being changeable as said block yields upon receiving engine vibration of large amplitude; a bottom plate which is fixed to said under surface of said block and covers said cavity to form a first fluid chamber; an elastically yieldable sheet member of which peripheral end is fixed to said upper surface of said block around the opening of said passageway to form a second fluid chamber; said first fluid chamber, said second fluid chamber and said passageway being filled with a liquid.
Claim 3
Dependent Claim
31 words
An elastically damping device according to claim 1, wherein: the thickness of said block in the lateral direction increases from said under surface of said block to said upper surface thereof.
Claim 4
Dependent Claim
29 words
An elastically damping device according to claim 2, wherein: said block has a frustoconical shape; and said under surface has a diameter larger than that of said upper surface.
Claim 5
Dependent Claim
97 words
An elastically damping device according to claim 1, further comprising: a first stopper means for restricting the deformation of said block which forms said first fluid chamber, in the upward and downward directions; said first stopper means being composed of at least one extending portion which extends from the outer periphery of said second supporting plate in the lateral direction; and at least one projecting portion which projects from the outer periphery of said first supporting plate upwards so that the projecting end of said projecting portion is opposed to said extending portion at a predetermined distance.
Claim 6
Dependent Claim
68 words
An elastically damping device according to claim 4, further comprising: a second stopper means for restricting the deformation of said sheet member which forms said second chamber; said second stopper means being composed of a cover plate which is provided with at least one vent hole and which is fixed to said upper surface of said block so as to cover said sheet member at a predetermined distance.
Claim 7
Dependent Claim
50 words
An elastically damping device according to claim 1, wherein: said second supporting plate is fixed to said upper surface of said block; and the peripheral end of said sheet member is airtightly connected to said second supporting plate by a caulking ring which is secured to said second supporting plate.
Claim 8
Dependent Claim
49 words
An elastically damping device according to claim 1 wherein: said second supporting plate is embedded integrally within the upper portion of said block along said upper surface thereof; and the peripheral end of said sheet member is connected in an airtight manner to said upper surface of said block.
Claim 9
Dependent Claim
49 words
An elastically damping device according to claim 1, wherein: said sheet member is in a loose state so that said sheet member is transformed into a dome shape when the maximum vibration is applied to said damping device; and said second fluid chamber is completely filled with a liquid.
Claim 10
Dependent Claim
16 words
An elastically damping device according to claim 1, wherein: said block is made of natural rubber.
Claim 11
Dependent Claim
21 words
An elastically damping device according to claim 9, wherein: said sheet member is made of natural rubber, chloroprene-rubber or olefin rubber.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-08 | 1988-07-09 | 1989-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-08 | 1992-07-09 | 1993-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-08 | 1996-07-09 | 1997-01-08 | $7700.00 | Window Closed / Lapsed |