Title:
HYDRAULIC ROTARY MACHINE, AND VALVE PLATE FOR SAME
Document Type and Number:
WIPO Patent Application WO/2017/047667
Kind Code:
A1
Abstract:
The present invention is provided with: a plurality of cylinders 2b formed in a cylinder block 2; pistons 6 which are slidably inserted into the cylinders 2b; a case 3 in which the cylinder block 2 is accommodated; and a valve plate 20 which is formed by a core member 21 and a resin layer 22 coated on the core member 21, and which is interposed between the cylinder block 2 and an end cover 5 of the case 3. The valve plate 20 comprises: first land parts 30 which are formed by the resin layer 22 and with which the cylinder block 2 is in sliding contact; and external non-contact parts 40 which are provided radially outwards from the first land parts, and which are spaced apart from the cylinder block 2. At least a part of each external non-contact part 40 is an exposing part 50 from which the core member 21 is exposed.
Inventors:
ISHIKAWA RYUNOSUKE (JP)
Application Number:
PCT/JP2016/077189
Publication Date:
March 23, 2017
Filing Date:
September 14, 2016
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
F04B1/22; F03C1/253
Foreign References:
| JPH07310674A | 1995-11-28 | |||
| JPH0283383U | 1990-06-27 | |||
| JPS62180676U | 1987-11-16 | |||
| JPS5756147A | 1982-04-03 | |||
| EP0661451A1 | 1995-07-05 |
Attorney, Agent or Firm:
GOTO, Masaki et al. (JP)
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