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Patent Searching and Data


Title:
HYDRAULIC PUMP
Document Type and Number:
Japanese Patent JP2018003609
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a hydraulic pump capable of adjusting a tilting angle of a swash plate by a simple mechanism.SOLUTION: A hydraulic pump 10 has a cylinder block 30 which rotates about a rotary axis A, and is formed with a plurality of cylinder holes 32 extending in the rotary axis A; a piston 38 slidably held in each cylinder hole 32; a swash plate 40 for making each piston 38 slide in each cylinder hole 32 by rotating the cylinder block 30 about the rotary axis A, which is configured to have a changeable inclination angle; first energizing means 50 which energizes the swash plate 40 in a direction increasing the inclined angle of the swash plate 40; and second energizing means 60 which energizes the swash plate 40 in a direction decreasing the inclined angle of the swash plate 40. The second energizing means 60 has an energizing rod 61 and a plurality of energizing pins 71-74, and each energizing pin 71-74 energizes the swash plate 40 through the energizing rod 61 according to signal pressure corresponding to each energizing pin 71-74.SELECTED DRAWING: Figure 1

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Inventors:
AKAMI TOSHIYA
YAMAGUCHI SHO
Application Number:
JP2016126945A
Publication Date:
January 11, 2018
Filing Date:
June 27, 2016
Export Citation:
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Assignee:
NABTESCO CORP
International Classes:
F04B1/26; F04B1/22
Attorney, Agent or Firm:
Hiroyuki Nagai
Nakamura Yukitaka
Yasukazu Sato
Satoru Asakura
Yukihiro Hotta
Yasumoto Yasumoto