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. 08, 2013
Filed:
Jun. 23, 2008
Jean-claude Heitzler, Horbourg Wihr, FR;
Christian Muller, Strasbourg, FR;
Jean-Claude Heitzler, Horbourg Wihr, FR;
Christian Muller, Strasbourg, FR;
Cooltech Applications S.A.S., Holtzheim, FR;
Abstract
A gear pump capable of alternately distributing a fluid in two distinct utilization circuits without the need for a switch. The gear pump () comprises two fluid outlet ports () connected to two fluid utilization circuits and linked to the discharge chamber (C) of the pump via an integrated commutation (). These commutation () comprise two distribution circuits (), located in a fixed support plate (), and two buffer channels (), located in the rotary toothed wheels (), arranged so as to alternately open and close the distribution circuits according to a commutation cycle that approximately corresponds to the rotation of the toothed wheels over half a revolution.