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:
Oct. 06, 1998
Filed:
Sep. 09, 1996
Wilhelm Heubner, Kaltenbrunn, DE;
Fahrzeugtechnik Ebern GmbH, , DE;
Abstract
A valve apparatus for a non-muscular-energy-assisted brake circuit of a hydraulic brake system is disclosed. The apparatus has a restriction valve whose valve body in a controlled manner limits a restriction gap through which a hydraulic fluid is forced in non-muscular-energy-assisted braking operation in order to establish a defined dynamic pressure in a pressure chamber in which a valve plunger having a through-hole is provided. The dynamic pressure can be applied to a tensioner. If the non-muscular-energy assistance fails, the valve plunger can be closed to generate a residual braking pressure in the pressure chamber using the valve body when the through-hole is closed. Since the restriction gap is located at the through-hole, a very compact valve apparatus is created, in which the valve body not only limits the restriction gap but also serves as a sealing closure element for the through-hole and serves to directly control the valve plunger, while the brake pressure in the pressure chamber is present at all times directly at the valve body and therefore can be fed back in a desirable manner to the brake pedal.