Brakes – Internal-resistance motion retarder – Controlled by an operator remote from retarder
Patent
1987-03-26
1988-08-23
Kashnikow, Andres
Brakes
Internal-resistance motion retarder
Controlled by an operator remote from retarder
18832215, 18832222, F16F 946
Patent
active
047654457
ABSTRACT:
A shock absorber with a variable damping characteristic has a piston which is reciprocable in a cylinder to divide the oil-filled interior of the cylinder into two chambers. The chambers are connectable to each other by way of several passages including a first set for permitting the flow of damping fluid from one chamber into the other chamber through a first one-way valve in response to movement of the piston rod into the cylinder, and a second set of passages which permit the fluid to flow from the other chamber into the one chamber in response to extraction of the piston rod from the cylinder. The piston is further formed with several bypass channels which are adjacent one another and wherein the flow of fluid between the two chambers (either directly or by way of selected passages) is regulated by cores which are movable axially in response to energization of inductance coils or in response to dissipation of energy by springs. The number of energized coils determines the rate of fluid flow by way of one or more bypass channels to thus influence the damping characteristic of the shock absorber.
REFERENCES:
patent: 3603612 (1971-09-01), Hill et al.
patent: 4310172 (1982-01-01), Claude et al.
patent: 4313529 (1982-02-01), Kato et al.
patent: 4527676 (1985-07-01), Emura et al.
patent: 4645043 (1987-02-01), Imaizumi
patent: 4645044 (1987-02-01), Kato et al.
Brand Peter
Komossa Werner
Kashnikow Andres
Kontler Peter K.
Korber AG
Le Mark T.
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