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Patent Searching and Data


Title:
VARIABLE VANE PUMP
Document Type and Number:
WIPO Patent Application WO/2019/189961
Kind Code:
A1
Abstract:
A variable vane pump according to the present invention comprises: a rotor (200) connected to a driving shaft (300) by means of a spline, and having vanes (100), linearly moving along the inner sides of a plurality of vane grooves dispersed and arranged in a circumferential direction, respectively, fitted thereto; a cylinder ring (400) formed to encompass the outer periphery of the rotor (200) so as to be eccentric with respect to the rotor (200); a pinion gear (800) formed at one side of the outer peripheral surface of the cylinder ring (400) so as to maintain the eccentricity; and a relief valve (870) connected to the pinion gear (800), further includes, between one side of the outer peripheral surface of the cylinder ring (400) and the pinion gear (800), a roller bearing (840) for controlling the eccentricity of the cylinder ring (400), has a recessed step formed in a region spaced by a predetermined gap from the roller bearing (840) formed at the cylinder ring (400), and further includes, at the recessed step, a fixing pin (830) for preventing the cylinder ring (400) from exceeding a predetermined rotational radius when the cylinder ring rotates.

Inventors:
CHO, Bong Hyun (103Dong 704Ho, 102 Jebong-ro,,Jangseong-eup, Jangseong-gun, Jeollanam-do, 57219, KR)
CHO, Young Jun (101Dong 1201Ho, 6 Wonjeok-ro 47beon-gil,,Seo-gu, Incheon, 22817, KR)
CHO, Young Jin (12-1, Dangpo-gil,Namji-eup, Changnyeong-gun, Gyeongsangnam-do, 50354, KR)
Application Number:
KR2018/003693
Publication Date:
October 03, 2019
Filing Date:
March 29, 2018
Export Citation:
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Assignee:
CHO, Bong Hyun (103Dong 704Ho, 102 Jebong-ro,,Jangseong-eup, Jangseong-gun, Jeollanam-do, 57219, KR)
CHO, Young Jun (101Dong 1201Ho, 6 Wonjeok-ro 47beon-gil,,Seo-gu, Incheon, 22817, KR)
CHO, Young Jin (12-1, Dangpo-gil,Namji-eup, Changnyeong-gun, Gyeongsangnam-do, 50354, KR)
International Classes:
F04C2/344; B62D5/06; B62D5/08; B62D5/22; F04C14/22; F04C15/00; F16H19/04; F16H57/04
Foreign References:
JPS639689A1988-01-16
KR20170027953A2017-03-13
JP2009036137A2009-02-19
KR19990042981A1999-06-15
KR101797537B12017-11-15
KR20180044699A2018-05-03
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (3F Hanyang Bldg, 123 Yeoksam-roGangnam-gu, Seoul, 06243, KR)
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