Invention Grant
- Patent Title: Pumping system
- Patent Title (中): 抽水系统
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Application No.: US10585438Application Date: 2005-01-05
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Publication No.: US08602748B2Publication Date: 2013-12-10
- Inventor: Giacomo Armenio , Bernardo Celata
- Applicant: Giacomo Armenio , Bernardo Celata
- Applicant Address: IT Lanciano
- Assignee: Pierburg Pump Technology Italy S.p.A.
- Current Assignee: Pierburg Pump Technology Italy S.p.A.
- Current Assignee Address: IT Lanciano
- Agency: Pietragallo Gordon Alfano Bosick & Raspanti, LLP
- Agent Robert P. Lenart, Esq.
- Priority: ITBO2004A0008 20040109
- International Application: PCT/EP2005/050037 WO 20050105
- International Announcement: WO2005/068838 WO 20050728
- Main IPC: F04B49/00
- IPC: F04B49/00 ; F01C20/22
Abstract:
A pumping system having a pump, such as a variable-displacement vane pump or a gear pump. The pump in turn has hydraulic pressure-control dissipating devices for imparting to the oil in a first control chamber a pressure lower than the pressure of a second chamber. The system is characterized in that the first control chamber of the pump has a channel connecting the first control chamber to an oil inlet. And the channel has an opening/closing device controlled selectively by an engine operating parameter, such as oil temperature.
Public/Granted literature
- US20080069704A1 Pumping System Public/Granted day:2008-03-20
Information query
