Land vehicles – Wheeled – Running gear
Patent
1990-04-26
1992-01-14
Marmor, Charles A.
Land vehicles
Wheeled
Running gear
188299, 280714, 280708, B60G 1700
Patent
active
050803921
ABSTRACT:
An auxiliary suspension unit for mounting parallel to a standard shock absorber comprises a cylinder receiving a piston which includes a piston head mounted to a piston rod and defining in the cylinder first and second chambers filled with oil. The first chamber is on the rod side of the piston head. A spring structure comprises a floating piston and a high pressure accumulator contained in a third chamber with the floating piston being slidable therein. The working fluid from the second chamber exerts pressure on the floating piston and is opposed by the high-pressure accumulator of the third chamber. The auxiliary unit also comprises an actuator for positioning a valve provided on the piston into first and second positions thereof and further comprises a control device for the actuator. In the first position of the valve and upon compression of the auxiliary unit, a bypass allows fluid transfer from the second to the first chamber. Alternatively, the bypass can be replaced by a first orifice, whereby the fluid transferring from the second to the first chamber creates a damping force. In the second position of the valve, the bypass or the first orifice is closed. Therefore, fluid from the second chamber passing through a second orifice exerts pressure on the floating piston. The high-pressure accumulator opposes a downward movement of the floating piston into the third chamber thereby providing a spring force to the auxiliary unit along with a damping force resulting from the second orifice.
REFERENCES:
patent: 4624477 (1986-11-01), Kumagai et al.
patent: 4629212 (1986-12-01), Takizawa et al.
patent: 4645042 (1987-02-01), Inoue et al.
patent: 4671533 (1987-06-01), Asami et al.
patent: 4671534 (1987-06-01), Yano
patent: 4685698 (1987-08-01), Klinkner et al.
patent: 4700971 (1987-10-01), Doi et al.
patent: 4702490 (1987-10-01), Yamaguchi et al.
patent: 4886291 (1989-12-01), Okamoto
patent: 4923038 (1990-05-01), Lizell
patent: 4949989 (1990-08-01), Kakizaki et al.
CB Auto Design Inc.
Finlay Tamara L.
Marmor Charles A.
LandOfFree
Suspension unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Suspension unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suspension unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-536455