The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 1997
Filed:
Apr. 09, 1993
Hubert Mies, Partenstein, DE;
Werner Gitter, Neuendorf, DE;
Sture Lindblom, Eskilstuna, SE;
Bo Karlsson, Eskilstuna, SE;
Mannesmann Rexroth GmbH, Lohr/Main, DE;
Abstract
In a power-brake system, a hydraulic pressure generated by means of a pump may be supplied, controllably in proportion to an actuation force via brake conduits, by a power-brake valve to individual brake cylinders. Control pressure conduits are connected to the brake cylinders or the brake conduits in the vicinity of the brake cylinders and these control pressure conduits are connected to the brake valve. The brake pressure at the brake cylinders may be fed back, via the control pressure conduits, as the control pressure for acting on the control end of the brake valve so that a control of the control plungers of the brake valve is carried out corresponding to the brake pressure build-up at the brake cylinders and, particularly when low brake pressures are desired, rapid pressure build-up times in the brake conduits are ensured. In addition, throttles may be provided in the control pressure holes in the brake valve so that the damping and closed-loop control behavior of the brake valve are positively affected. In addition, the brake conduits may be flushed from the direction of the brake cylinders by means of an auxiliary pump.