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:
Dec. 31, 1985
Filed:
Apr. 04, 1984
Applicant:
Inventors:
Jose Mallen-Herrero, Paris, FR;
Daniel Leroy, Limay, FR;
Urs Zimmermann, Le Chesnay, FR;
Patrice Charlat, Mantes, FR;
Assignee:
Compagnie de Construction Mecanique Sulzer, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
F03C / ; F04C / ;
U.S. Cl.
CPC ...
418 28 ; 418232 ;
Abstract
A rotary hydraulic device of the displacement pump type having coaxial rotor and stator and vanes axially slidable in the rotor, the stator comprising at least one bottom surface formed with a variable number of deformations having rectilinear zones suitable for the operation on the recesses by the vanes. The recesses are made in movable elements of the stator such that the depth of the recesses can be made variable thus providing a device of variable capacity. The device is applicable to brakes and dampeners, as well as to engines and pumps.