Invention Grant
- Patent Title: Oilless rotary vane pump having open ends of vane grooves being inclined rearward in the rotation direction
- Patent Title (中): 无叶片旋转叶片泵，叶片槽的开口端沿旋转方向向后倾斜
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Application No.: US11578053Application Date: 2005-07-27
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Publication No.: US07632084B2Publication Date: 2009-12-15
- Inventor: Kiyoshi Sawai , Atsushi Sakuda , Tatsuya Nakamoto , Noboru Iida , Ryuichi Ohno
- Applicant: Kiyoshi Sawai , Atsushi Sakuda , Tatsuya Nakamoto , Noboru Iida , Ryuichi Ohno
- Applicant Address: JP Kadoma-Shi
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Kadoma-Shi
- Agency: Kratz, Quintos & Hanson, LLP
- Priority: JP2004-225360 20040802
- International Application: PCT/JP2005/013736 WO 20050727
- International Announcement: WO2006/013761 WO 20060209
- Main IPC: F01C1/00
- IPC: F01C1/00 ; F03C2/00
Abstract:
It is an object of the present invention to provide a vane rotary type air pump in which a pump mechanism and a drive motor are directly connected to each other and low noise is realized. In the vane rotary type air pump in which a cylinder (103), a rotor (110 ) and a vane (112) are sandwiched between a front plate (not shown) and a rear plate (not shown), an opened end (111b) of the vane groove (111) is provided in a reversed rotation direction region of the rotor (110) with respect to straight line connecting a center O of the rotor (110) and the closed end (111a) of the vane groove (111). That is, a “stroke” type vane disposition is employed. With this noise of the air pump is reduced.
Public/Granted literature
- US20070217937A1 Vane Rotary Type Air Pump Public/Granted day:2007-09-20
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