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Patent US4693455A successfully refreshed from Google Patents.
US4693455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-chamber motor support with hydraulic damping
Assignee: Metzeler Kautschuk GmbH
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Filing: 1985-05-24
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Granted: 1987-09-15
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Expires: 2005-05-24
Abstract
Abstract A two-chamber engine mount with hydraulic damping includes a housing having rubber-elastic peripheral walls and an engine side to be connected to an engine, an intermediate plate dividing the housing into fluid-filled chambers being in communication with each other through a penetration formed in the intermediate plate, and an active vibration generator being integrated into one of the fluid-filled chambers closest to the engine side and being controllable in dependence on predetermined operating parameters.
Inventors
- 👤 Rainer Andra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:42
CPC Classifications
F; F16; F16F; F16F13/00; F16F13/04; F16F13/06; F16F13/22; F16F13/26; F16F13/264
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
121 words
Two-chamber engine mount with hydraulic damping, comprising a housing having rubber-elastic peripheral walls and an engine side to be connected to an engine, an intermediate plate dividing said housing into fluid-filled chambers being in communication with each other through a penetration formed in said intermediate plate, an active electro-dynamic vibration generator being integrated into one of said fluid-filled chambers closest to said engine side and being controllable in dependence on predetermined operating parameters, a membrane chamber disposed in said one fluid-filled chamber closest to said engine side, and a membrane with a quenching mass closing off said membrane chamber, said vibration generator being an electro-dynamically operating vibration generator with an active vibrating part formed by said membrane and said quenching mass.
Claim 2
Dependent Claim
121 words
Two-chamber engine mount with hydraulic damping, comprising a housing having rubber-elastic peripheral walls and an engine side to be connected to an engine, an intermediate plate dividing said housing into fluid-filled chambers being in communication with each other through a penetration formed in said intermediate plate, an active electro-dynamic vibration generator being integrated into one of said fluid-filled chambers closest to said engine side and being controllable in dependence on predetermined operating parameters, a membrane chamber disposed in said one fluid-filled chamber closest to said engine side, and a membrane with a quenching mass closing off said membrane chamber, said vibration generator being an electro-dynamically operating vibration generator with an active vibrating part formed by said membrane and said quenching mass.
Claim 3
Dependent Claim
39 words
Two-chamber engine mount according to claim 1, including an annular permanent magnet element and an electrical coil element in said membrane chamber being mutually spaced apart and concentric, one of said elements being fixedly connected to said quenching mass.
Claim 4
Dependent Claim
51 words
Two-chamber engine mount according to claim 2, wherein said membrane is rubber-elastic, said membrane chamber has an inner wall surface, said quenching mass in cup-shaped and is connected to said membrane, said permanent magnet element is concentrically secured to said inner wall surface, and said coil element surrounds said quenching mass.
Claim 5
Dependent Claim
55 words
Two-chamber engine mount according to claim 3, including an engine support plate closing said one fluid-filled chamber closest to said engine side from said engine side, said membrane chamber being centrally disposed on said engine support plate, and said membrane closing off said membrane chamber from said one fluid-filled chamber closest to said engine side.
Claim 6
Dependent Claim
36 words
Two-chamber engine mount according to claim 3, wherein said membrane chamber is centrally disposed in said intermediate plate, and said membrane closes off said membrane chamber from said one fluid-filled chamber closest to said engine side.
Claim 7
Dependent Claim
23 words
Two-chamber engine mount according to claim 2, including means for controlling the current of said coil in dependence on acceleration of the engine.
Claim 8
Dependent Claim
25 words
Two-chamber engine mount according to claim 2, including means for controlling the current of said coil in dependence on the pressure inside the engine mount.
References Cited (Backward Citations)
SU580384A1
Cited
DE2927757A1
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JPS5666539A
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US4418897A
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DE3125040A1
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JPS5837337A
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JPS58113644A
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JPS5965640A
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JPS59103043A
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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) | 1990-09-14 | 1991-03-16 | 1991-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-14 | 1995-03-16 | 1995-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-14 | 1999-03-16 | 1999-09-15 | $7700.00 | Window Closed / Lapsed |