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:
Apr. 09, 2019
Filed:
May. 12, 2016
Stackpole International Engineered Products, Ltd., Mississauga, Ontario, CA;
Paul Morton, Mississauga, CA;
STACKPOLE INTERNATIONAL ENGINEERED PRODUCTS, LTD., Ontario, CA;
Abstract
Provided is a variable displacement vane pump with a control slide and a first and second control chambers. Also, the pump has a control system for controlling delivery of pressurized lubricant to the chambers. The control system includes a control device configured for movement between at least a first control position and a second control position. The control device may include its own housing and/or include discs configured for relative movement. The pivot pin may include grooves for delivering a flow from the outlet to the control system. In the first control position, pressurized lubricant is delivered to the first control chamber and the second control chamber is vented, which increases the output flow of the pump. In the second control position, pressurized lubricant is delivered to the second control chamber and the first control chamber is vented, which decreases the output flow of the pump.