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Patent Searching and Data


Title:
INCLINED-SHAFT-TYPE AXIAL PISTON PUMP MOTOR
Document Type and Number:
WIPO Patent Application WO/2013/153684
Kind Code:
A1
Abstract:
In order to prevent oil leaks between a valve plate and a cylinder block more reliably without causing the support ends of a center shaft and the support ends of piston rods to separate from the end face of a drive shaft, a center shaft (90) is equipped with: an outer race (920), which is mounted in a shaft-mounting hole (41) of a cylinder block (40), and has a shaft-part-housing hole (921) on one end and a spring-housing hole (922) on the other end; and an inner shaft (910), which has at the tip of a shaft base part (911) a shaft support ball head part (912) having a large outer size, and which is mounted in the shaft-part-housing hole (921) of the outer race (920) by means of the shaft base part (911). With a compression spring (930) housed in the spring-housing hole (922), one end of the outer race (920) is mounted in the shaft-mounting hole (41) of the cylinder block (40), and the center shaft is supported in a tiltable manner on the end face of the drive shaft (30) by a retainer plate (100), via the shaft support ball head part (912) of the inner shaft (910).

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Inventors:
MIYATA TAKUYA (JP)
HAYASHI SEITA (JP)
Application Number:
PCT/JP2012/064741
Publication Date:
October 17, 2013
Filing Date:
June 08, 2012
Export Citation:
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Assignee:
KOMATSU MFG CO LTD (JP)
MIYATA TAKUYA (JP)
HAYASHI SEITA (JP)
International Classes:
F03C1/253; F04B1/24
Foreign References:
JPH1150952A1999-02-23
JPS5638583A1981-04-13
JPS5236303A1977-03-19
JPS4810722B11973-04-06
JPS44253Y11969-01-08
JPS5635568U1981-04-06
JPS4746924B1
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
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