Title:
油圧装置、及びその油圧装置を備えた作業車
Document Type and Number:
Japanese Patent JP6817130
Kind Code:
B2
Abstract:
To further improve drive efficiency by a simple structure improvement in an opposite slide contact surface of a cylinder block.SOLUTION: In a hydraulic system, an oil storage recess part 41 for temporarily storing pressure oil leaking to an opposite slide contact surface 40 from feed/discharge ports 24, 34 is formed at a position deviated from a part where the feed/discharge ports 24, 34 for pressure oil to an axial plunger are formed in the opposite slide contact surface 40 on a side of cylinder blocks 23, 33 opposite to a port block in an axial direction.SELECTED DRAWING: Figure 3
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Inventors:
Toshiyuki Miyaji
Tomoichi Ando
Question Nozomi Daiki
Tomoichi Ando
Question Nozomi Daiki
Application Number:
JP2017067653A
Publication Date:
January 20, 2021
Filing Date:
March 30, 2017
Export Citation:
Assignee:
Kubota Corporation
International Classes:
F04B1/22; F03C1/253; F16H39/14
Domestic Patent References:
| JP4203279A | ||||
| JP2013256905A | ||||
| JP8210244A | ||||
| JP2010025266A |
Attorney, Agent or Firm:
Patent business corporation r&c