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:
Jan. 25, 1994
Filed:
Apr. 10, 1992
Jean-Michel Pichon, Messy, FR;
Philippe Bourlon, Aubervilliers, FR;
Bendix Europe Services Techniques, Drancy, FR;
Abstract
The invention relates to a hydraulic device for braking the wheels of a vehicle, especially for wheel anti-lock and/or anti-slip functions, comprising, between a chamber of a master cylinder and at least one brake motor, a plurality of solenoid valves (36) and a hydraulic pump driven by an electric motor including a rotor (10) arranged between two bearings (12, 14) and enclosed in a cylindrical sleeve (20) made of metallic material, the rotor driving in rotation an eccentric cam (24) imparting an alternating translational movement to radial pistons (26), the delivery outlet of the pump being connected to the solenoid valves (36) via hydraulic slides by way of fluid circulation channels (32, 34). According to the invention, the sleeve (20), in which the rotor is accommodated, is enclosed in a housing (30) made of non-magnetic material. The fluid circulation channels (32, 34) and the solenoid valves (36) extend in the housing.