Spring devices – Vehicle – Comprising compressible fluid
Patent
1980-12-30
1984-01-31
Halvosa, George E. A.
Spring devices
Vehicle
Comprising compressible fluid
88269, 188282, 188314, 188317, 18832215, 18832217, 18832218, 8832221, 18832222, 267 6428, F16F 9348, F16F 936
Patent
active
044285671
ABSTRACT:
A combined shock absorber and suspension device, particularly for a vehicle, comprises a suspension whose function is to elastically support the weight of a vehicle and a double-effect shock absorber which comprises an energy dissipation brake. The combined shock absorber and suspension device is either oleopneumatic or hydropneumatic. The device includes two telescopically slidable tubes which are each blocked at one end and open at the other end, the respective open ends of the tubes adapted to be inserted into one another to achieve a telescopically slidable motion. Each of the tubes can comprise an oil reservoir, the two reservoirs being separated by a piston attached to a free end of the interior one of the tubes. The piston includes at least one permanently open bleed bore. This bore is adapted to work during both compression and expansion of the device. The piston also includes one or more flap valve bores which are adapted to open during compression and to close during extension or expansion of the device, and/or inversely, to provide necessary shock absorption characteristics. Compressed gaseous fluid is located only within the smaller diameter interior tube.
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patent: 3647239 (1972-03-01), Katsumori
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patent: 3931961 (1976-01-01), Fader et al.
patent: 3993294 (1976-11-01), Wasser et al.
patent: 4030715 (1977-06-01), Duran
patent: 4166523 (1979-09-01), Fujii et al.
patent: 4287970 (1981-09-01), Eusemorn et al.
Fournales France
Halvosa George E. A.
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