Suspension of vehicles using two stiffnesses, adapted respective

Details Suspension of vehicles using two stiffnesses, adapted respective Suspension of vehicles using two stiffnesses, adapted respective

1992-06-24

1993-11-23

Oberleitner, Robert J.

Spring devices

Vehicle

Mechanical spring and nonresilient retarder

267252, 267289, B60G 1115

Patent

active

052636950

ABSTRACT:
A suspension for a vehicle wheel, comprising an elongated shock absorber (7) having an elongated body (6) and first and second abutments at opposite ends of the shock absorber. First and second coil compression springs (R20, R30) are aligned with each other and surround the shock absorber (7). One of these springs bears against one of the abutments and the other of the springs bears against the other of the abutments. A cup (32) is disposed between the springs, this cup surrounding the body and being movable lengthwise of the body. Both of the springs bear on the cup (32). An annular jack (5) is fixed to and surrounds the body and comprises one (10) of the abutments. A third abutment (31) is fixed to the body a distance from the jack (5). An elastic ring (54) is compressible between the cup (32) and the third abutment (31). A movable jacket (4) surrounds and is slidable in sealed relationship on the body (6) and on the annular jack (5) and defines with the body (6) and jack (5) a hydraulic chamber of variable size. Provision (8, 9) is made to deliver hydraulic fluid to the hydraulic chamber to vary the size of the hydraulic chamber. A third coil compression spring (11) surrounds the body (6) and acts between the third abutment (31) and the jacket (4).

REFERENCES:
patent: 2902274 (1959-09-01), McIntyre
patent: 3163411 (1964-12-01), Heckethorn
patent: 3503601 (1970-03-01), Wells
patent: 3572678 (1971-03-01), Jerz, Jr.
patent: 4162062 (1979-07-01), Strauss
patent: 4273317 (1981-06-01), Blee

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