Invention Grant
- Patent Title: Lubricant vane pump
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Application No.: US14777518Application Date: 2013-03-18
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Publication No.: US09759103B2Publication Date: 2017-09-12
- Inventor: Giacomo Armenio , Nicola Novi , Massimiliano Lazzerini
- Applicant: PIERBURG PUMP TECHNOLOGY GMBH
- Applicant Address: DE Neuss
- Assignee: PIERBURG PUMP TECHNOLOGY GMBH
- Current Assignee: PIERBURG PUMP TECHNOLOGY GMBH
- Current Assignee Address: DE Neuss
- Agent Norman B. Thot
- International Application: PCT/EP2013/055527 WO 20130318
- International Announcement: WO2014/146675 WO 20140925
- Main IPC: F01M1/02
- IPC: F01M1/02 ; F04C2/344 ; F04C14/10 ; F04C14/22 ; F04C13/00 ; F04C14/24 ; F04C15/00 ; F04C15/06

Abstract:
A lubricant vane pump for providing a pressurized lubricant for an internal combustion engine includes a pump housing, a pump chamber, a shiftable control ring comprising a pressure-relief-valve, a pump rotor, a pretensioning element which pushes the control ring into a high pumping volume position, a control chamber, and a pump outlet cavity fluidically connected to the control chamber. The pump chamber comprises pump compartments which rotate from a charge to discharge zone. The control ring envelops the pump chamber. The pump rotor comprises radially slidable vanes which rotate in the control ring to provide the pump chamber with the pump compartments. A high lubricant pressure in the control chamber moves the control ring into a low pumping volume direction against the pretensioning element. The pressure-relief-valve of the control ring connects or disconnects the control chamber with one of the pump compartments between the charge zone and the discharge zone.
Public/Granted literature
- US20160047280A1 LUBRICANT VANE PUMP Public/Granted day:2016-02-18
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