Title:
HYDRAULIC PUMP OR HYDRAULIC MOTOR
Document Type and Number:
Japanese Patent JP2016138527
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a hydraulic pump/motor capable of supplying lubricating oil to a bearing without the need for increasing the thickness of a wall part of a case.SOLUTION: A hydraulic pump/motor 1 includes a second bearing 15 fixed to a case 10, a rotating shaft 20 rotatably held on the second bearing 15, a cylinder block 30 held on the rotating shaft 20 to be rotated together with the rotating shaft 20, and having a plurality of cylinder holes 31 extending along the axial direction of the rotating shaft 20, pistons 40 slidably held in the plurality of cylinder holes 31, respectively, and a swash plate 50 arranged between the cylinder block 30 and the second bearing 15, and having a slope face 51 on the side of the cylinder block 30. The swash plate 50 has a first passage 61 connecting an opposite portion 61a to the second bearing 15 on the face of the swash plate 50 at the side of the second bearing 15 to the outer peripheral face of the swash plate 50.SELECTED DRAWING: Figure 4
Inventors:
SATAKE TERUHIKO
Application Number:
JP2015014768A
Publication Date:
August 04, 2016
Filing Date:
January 28, 2015
Export Citation:
Assignee:
NABTESCO CORP
International Classes:
F04B1/22; F03C1/253
Attorney, Agent or Firm:
Hirohito Katsunuma
Hiroyuki Nagai
Katsuomi Isogai
Yoshiki Kanagawa
Hiroyuki Nagai
Katsuomi Isogai
Yoshiki Kanagawa