FLUID PUMP AND FLUID-PUMPING METHOD FOR SAME

WIPO Patent Application WO/2011/090335

A2

The present invention relates to a fluid pump. The fluid pump of the present invention comprises a pumping housing, a rotating member, a plurality of pistons, and a cam member. The pumping housing includes an inlet portion for introducing fluid, an outlet portion for discharging the pumped fluid, and an accommodating portion interposed between the inlet portion and the outlet portion to put the inlet portion and the outlet portion in communication. The rotating member is tightly accommodated in the accommodating portion of the pumping housing, and has a plurality of cylinder holes which are in turn in communication with the inlet portion and the outlet portion during rotation. The plurality of pistons are inserted into the respective cylinder holes of the rotating member such that the pistons are movable in the upward and downward directions, and has a communication space for putting the rotating member and the pumping housing in communication. The cam member enables the plurality of pistons to move in the upward and downward directions, such that the volume of the communication space in communication with the inlet portion increases and the volume of the communication space in communication with the outlet portion gradually decreases during the rotation of the rotating member. A rotating means rotates the rotating member.

CHOI KI HO (KR)

PCT/KR2011/000418

July 28, 2011

January 21, 2011

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CHOI KI HO (KR)

F04C18/067; F04C19/00

JPH02305379A	1990-12-18
JPS63235674A	1988-09-30
JP2007056810A	2007-03-08

CHUN, SUNG HOON (KR)
천성훈 (KR)

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