EP0081085A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Vibration responsive mounting arrangement for automotive engine or the like
Assignee: Nissan Motor Co Ltd
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Filing: 1982-11-04
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Granted: —
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Expires: 2002-11-04
Abstract
Abstract The expansion/contraction timing of an actuator chamber (46) is varied in accordance with the sensed engine vibration in a manner as to compensate for the frequency dependent change in pressure transmission characteristics between the chamber (46) of the actuator (38) and the chamber (28) of an engine suspension insulator (10). This is done by sensing the engine vibration frequency or a parameter which varies in accordance with same (e.g. RPM) and suitably delaying a solenoid or similar electric motor energization signal in accordance with the frequency of the vibration.
Inventors
- 👤 Akira Kimura
- 👤 Masao Ishihama
- 👤 Toshiro Abe
- 👤 Kiyoshi Shimada
- 👤 Shinichi Matsui
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 13:04
CPC Classifications
F; F16; F16F; F16F13/00; F16F13/04; F16F13/26; B; B60; B60K; B60K5/00; B60K5/12; B60K5/1283
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
148 words
An arrangement for mounting a vibrating body on a stationary base member comprising: an insulator operatively interposed between said body and said base for supporting said body on said base; means defining a first variable volume chamber in said insulator; means for generating a fluid pressure; means for producing a signal indicative of engine vibration; and a control circuit which operatively interconnects said signal producing means and said fluid pressure generating means and which outputs a pulse train signal for driving said fluid pressure generating means, said control circuit including means for delaying said pulse train in accordance with the frequency of said signal from said signal producing means in a manner as to compensate for the change time require for pressure to be transmitted between said fluid pressure generating means and said first variable volume chamber which occurs with change in the vibration frequency of said body.
Claim 2
Dependent Claim
148 words
An arrangement for mounting a vibrating body on a stationary base member comprising: an insulator operatively interposed between said body and said base for supporting said body on said base; means defining a first variable volume chamber in said insulator; means for generating a fluid pressure; means for producing a signal indicative of engine vibration; and a control circuit which operatively interconnects said signal producing means and said fluid pressure generating means and which outputs a pulse train signal for driving said fluid pressure generating means, said control circuit including means for delaying said pulse train in accordance with the frequency of said signal from said signal producing means in a manner as to compensate for the change time require for pressure to be transmitted between said fluid pressure generating means and said first variable volume chamber which occurs with change in the vibration frequency of said body.
Claim 3
Dependent Claim
26 words
An arrangement as claimed in claim 1, wherein said insulator includes an elastomeric body in which said first variable volume chamber is at least partially defined.
Claim 4
Dependent Claim
52 words
An arrangement as claimed in claim 1, wherein said fluid generating means comprises: means defining a second variable volume chamber and an electric motor responsive to the pulse train signal outputted by said control circuit for changing the volume of said second variable volume chamber when energized by said pulse train signal.
Claim 5
Dependent Claim
17 words
An arrangement as claimed in claim 3, wherein said electric motor takes the form of a solenoid.
Claim 6
Dependent Claim
27 words
An arrangement as claimed in claim 3, wherein fluid second variable volume defining means takes the form of a cylinder in which a piston is reciprocatively disposed.
Claim 7
Dependent Claim
19 words
An arrangement as claimed in claim 5, wherein said piston is biased in a predetermined direction by a spring.
Claim 8
Dependent Claim
45 words
An arrangement as claimed in claim 3 wherein said second variable volume defining means takes the form of a metallic bellows sealed at both ends, one end of said bellows being attached to stationary member and the other end operatively connected to said electric motor.
Claim 9
Dependent Claim
34 words
An arrangement as claimed in claim 3 wherein said second variable volume chamber defining means takes the form of a casing divided by a diaphragm, said diaphram being operatively connected to said electric motor.
Claim 10
Dependent Claim
32 words
An arrangement as claimed in claim 1 wherein said signal producing means takes the form of strain gauge which produces an output upon said first variable volume chamber undergoing a volume change.
Claim 11
Dependent Claim
50 words
An arrangement as claim in claim 1 wherein said body is an internal combustion engine and said base is an automotive chassis and wherein said signal producing means takes the form of one of an ignition distributor of said engine and a crank angle sensor operatively mounted on said engine.
Claim 12
Dependent Claim
84 words
An arrangement as claimed in claim 3 wherein said control circuit comprises; a wave shaping circuit which shapes the signal inputted from said signal producing means; a delay circuit which delays the signal inputted thereto from said wave shaping circuit in response to the frequency of same; a duty ratio determining circuit which receives the output from said delay circuit and which produces a pulse train; and a power amplifier which amplifies said pulse train to a level suitable for energizing said electric motor.
Claim 13
Dependent Claim
39 words
An arrangement as claimed in claim 11, further comprising a band pass filter which screens out all frequencies other than a predetermined range, said band pass filter being operatively interposed between said signal producing means and said delay circuit.
References Cited (Backward Citations)
US3606233A
Cited
US4154206A
Cited
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