Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1992-07-13
1993-09-21
Butler, Douglas C.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
267219, F16F 910, F16F 1300
Patent
active
052462110
ABSTRACT:
A hydraulic mount assembly includes a pair of mounting members connected together to form a hollow elastomeric body closed by a resilient diaphragm so as to form a cavity for a damping liquid. A partition divides the cavity into a primary chamber formed between the partition and the hollow body and a secondary chamber formed between the partition and the diaphragm. The partition also includes a primary orifice track, a secondary orifice track and a decoupler passage providing fluid communication between the chambers. A first decoupler is mounted for limited reciprocating movement in the decoupler passage. A spring biases the first decoupler to a seated position sealing the passage. A second decoupler is mounted for limited reciprocating movement in the secondary orifice track. The primary orifice track establishes a first resonance frequency for the damping liquid. Similarly, the secondary orifice track establishes second, higher resonance frequency. Further, the force provided by the coil spring against the first decoupler is overcome by fluid pressure at a third resonance frequency higher than that of the second resonance frequency. Together these structures function to provide a rate dip and improved relatively high frequency tuning in a fully passive mount assembly.
REFERENCES:
patent: 4428569 (1984-01-01), Takei
patent: 4588173 (1986-05-01), Gold et al.
patent: 4733854 (1988-03-01), Miyamoto
patent: 4739962 (1988-04-01), Morita et al.
patent: 4756513 (1988-07-01), Carlson et al.
patent: 4768760 (1988-09-01), Le Fol
patent: 4783062 (1988-11-01), Hamberg et al.
patent: 4893797 (1990-01-01), Le Fol et al.
patent: 4903951 (1990-02-01), Miyamoto et al.
patent: 4958811 (1990-09-01), Brenner et al.
patent: 4971300 (1990-11-01), Ticks
patent: 4986510 (1991-01-01), Bellamy et al.
patent: 5029824 (1991-07-01), LaBeau et al.
patent: 5058866 (1991-10-01), Hamaekers et al.
patent: 5092565 (1992-03-01), Hamaekers et al.
patent: 5112032 (1992-05-01), Klein et al.
Klein Robert R.
Smith Stanley E.
Butler Douglas C.
General Motors Corporation
Hinman Kevin M.
LandOfFree
Hydraulic mount with spring-loaded decoupler for tuned rate dip does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic mount with spring-loaded decoupler for tuned rate dip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic mount with spring-loaded decoupler for tuned rate dip will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1045033