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:
Jun. 08, 1976
Filed:
Dec. 26, 1973
Gunter Kersten, Stuttgart, DT;
Ulrich Aldinger, Stuttgart, DT;
Emil Knodel, Stuttgart, DT;
Rainer Knoblauch, Stuttgart, DT;
Robert Bosch GmbH, Stuttgart, DT;
Abstract
A multiple pump assembly consisting of a series of two or more coaxial pumps the first of which is invariably a radial piston pump. The shaft of the prime mover drives the first pump by way of an Oldham coupling and an extension of this shaft extends through an axial bore of the pintle in the first pump to drive the rotary element of the second pump as well as any further pump of the assembly. If the second pump is also a radial piston pump, the two pumps may but need not have a common pintle. The slide block of each radial piston pump can be adjusted to change the rate of delivery of pressurized fluid. The fluid admitting and evacuating channels in the pintle or pintles may be formed by an electrochemical process, or the entire pintle may constitute a casting. The housing for the multiple pump assembly may include a discrete annular section for each pump or a single annular section for all of the pumps and cover members at the axial ends of the single section.