Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1981-04-10
1982-11-30
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
188349, B60T 802
Patent
active
043613616
ABSTRACT:
In a dual-circuit pressure control valve for hydraulic brake systems, the control pistons disposed parallel to one another are each loaded by a first arm of an associated angular lever. Each of the levers have a second arm perpendicular to the first arm acted upon by a common tension spring disposed therebetween. The levers are located approximately in a plane defined by the axes of the control pistons. The tilting axes of the levers are disposed perpendicular to this plane and are disposed outside the axes of the control pistons. This results in a short overall length in both the axial and radial direction. In addition, a carrier device is provided which couples one of the control pistons with the lever of the other control piston after a small relative movement of the control pistons. This carrier device becomes effective upon failure of one brake circuit. The carrier device may be formed by extensions of the first arms which overlap one another with play.
REFERENCES:
patent: 3840280 (1974-10-01), Watanabe
patent: 3932002 (1976-01-01), Komoda et al.
patent: 4093314 (1978-06-01), Kuzakai
patent: 4203627 (1980-05-01), Kono
Schopper Bernd
Tandler Peter
Butler Douglas C.
Hill Alfred C.
IT&T Industries, Inc.
O'Halloran John T.
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