Throttle with pressure limiting valve to damp pressure fluctuati

Details Throttle with pressure limiting valve to damp pressure fluctuati Throttle with pressure limiting valve to damp pressure fluctuati

1992-09-30

1993-11-30

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Pulsation neutralizers

3031161, 3031131, 303900, 303901, 3031154, B60T 832, B60T 1312

Patent

active

052659437

ABSTRACT:
An apparatus for damping pressure fluctuations in hydraulic motor vehicle systems with an anti-skid and/or traction control system, the apparatus comprises a throttle and a pressure limiting valve. The apparatus comprises a sleeve-like housing with a screen-like throttle body received in it along with a prestressed compression spring with which the throttle body is supported on the bottom of the housing. The housing and the throttle body are embodied as molded sheet-metal parts. On its bottom, the housing has an opening, with a valve seat, made by stamping without metal cutting, of a pressure limiting valve, which is engaged by the throttle body, which has a stamped bulge of rounded shape. A throttle opening of the throttle body, located in the bulge, is disposed coaxially with the larger-diameter opening of the housing. The apparatus can be used in hydraulic motor vehicle brake systems with an anti-skid and/or traction control system.

REFERENCES:
patent: 3774976 (1973-11-01), Parsons
patent: 4919495 (1990-04-01), Kircher et al.
patent: 4969697 (1990-11-01), Lindenman
patent: 5004301 (1991-04-01), Yamada et al.
patent: 5020864 (1991-06-01), Tanaka
patent: 5031969 (1991-07-01), Siegel
patent: 5058961 (1991-10-01), Mergenthal et al.
patent: 5076647 (1991-12-01), Grana et al.
patent: 5167442 (1992-12-01), Alaze et al.

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