Invention Grant
- Patent Title: Variable displacement vane pump
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Application No.: US15326561Application Date: 2014-07-18
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Publication No.: US10563652B2Publication Date: 2020-02-18
- Inventor: Ayres Pinto De Andrade Filho , João Luiz De Carvalho Meira , Eduardo Gubbiotti Ribeiro
- Applicant: Melling Tool Company
- Applicant Address: US MI Jackson
- Assignee: Melling Tool Company
- Current Assignee: Melling Tool Company
- Current Assignee Address: US MI Jackson
- Agency: Young Basile Hanlon & MacFarlane, P.C.
- International Application: PCT/US2014/047150 WO 20140718
- International Announcement: WO2016/010551 WO 20160121
- Main IPC: F04C14/22
- IPC: F04C14/22 ; F04C2/344 ; F04C14/24 ; F04C14/26 ; F04C15/06

Abstract:
A variable displacement vane pump includes a biasing element for urging the control ring toward a first position that corresponds to a maximum volumetric capacity of the pump. Fluid pressure within a control chamber urges the control ring toward the second position. A feedback path is in communication with a fluid outlet of the pump for supplying a pressurized fluid. A first supply path provides the pressurized fluid to the fluid inlet. A second supply path provides the pressurized fluid to the control chamber. A valve controls flow of the pressurized fluid via the second supply path by moving between a fully open position and a fully closed position in which flow of the pressurized fluid along the second supply path is prevented by the valve. Moving the valve from the open position to the closed position increases the fluid pressure within the control chamber.
Public/Granted literature
- US20170198692A1 Variable Displacement Vane Pump Public/Granted day:2017-07-13
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