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Patent Searching and Data


Title:
FLUID PUMP
Document Type and Number:
WIPO Patent Application WO/2019/148911
Kind Code:
A1
Abstract:
Provided is a fluid pump, comprising: a housing (10, 30) in which a driving space (12) is formed; a swash plate (35) located in the driving space (12) of the housing (10, 30), the swash plate being kept in a stationary state and having an inclined surface (36); a cylinder block (50) located inside the driving space (12) and rotating through a drive shaft (90), a plurality of cylinder holes (55) extending in the same direction as the drive shaft (90) inside the cylinder block (50); a plurality of piston assemblies (70), at least a portion of the piston assembly (70) being inserted inside the cylinder holes (55) of the cylinder block (50), performing a linear movement inside the cylinder holes (55) as the cylinder block (50) rotates, and one end of the piston assembly having a ball joint (73); and a disc shaped holder (80) combined with the swash plate (35) and maintaining in close contact with the inclined surface (36), wherein, the disc shaped holder (80) can rotate independently from the swash plate (35), the disc shaped holder (80) is connected with the ball joint (73) of the piston assembly (70), and the disc shaped holder (80) rotates together with the piston assembly (70) in the condition that the piston assembly (70) closely contacts with the inclined surface (36) of the swash plate (35). During the movement of the fluid pump, the wear of the holder (80) is reduced and the noise is reduced.

Inventors:
LEE, Yong Kwun (104-2002, Hanshin APT9 Yangpyeong-ro 24-gil, Yeongdeungpo-gu, Seoul, 07204, KR)
Application Number:
CN2018/112844
Publication Date:
August 08, 2019
Filing Date:
October 31, 2018
Export Citation:
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Assignee:
SHANGHAI HYACT TECHNOLOGY LTD. (Floor 2, Building 6 No.899, Zuchongzhi Road, Pu Dong, Shanghai 3, 201203, CN)
International Classes:
F04B1/22
Foreign References:
CN108131266A2018-06-08
CN207989244U2018-10-19
CN103069161A2013-04-24
KR20110104163A2011-09-22
JP2003113775A2003-04-18
US20150316040A12015-11-05
Attorney, Agent or Firm:
IFUTURE INTELLECTUAL PROPERTY (SHANGHAI) LAW FIRM (Room 50I, No. 780 Cailun Road, Pu Dong, Shanghai 3, 201203, CN)
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