Swash plate type axial piston pump and method of assembling the

Details Swash plate type axial piston pump and method of assembling the Swash plate type axial piston pump and method of assembling the

1996-04-02

1998-09-08

Mohanty, Bibhu

Pumps

Three or more cylinders arranged in parallel, radial, or...

417270, F04B 112, F04B 126

Patent

active

058037144

ABSTRACT:
A swash plate type axial piston pump of enhanced assemblability and high assembling efficiency, in which looseness between constituent members of the pump is suppressed to minimum. A valve plate (31) and a cylinder block (15) are inserted in a first housing section (1a) sequentially, and then a second housing section (1b) is installed on the cylinder block (15) around an outer periphery and fixedly secured to the first housing section (1a), wherein an annular resilient member (29), an annular supporting member (24) and an annular shoe holder (27) are inserted in the second housing section (1b) sequentially. A plurality of pistons (21) each having a shoe (25) connected pivotally at one end are inserted into the cylinders (13), respectively, of the cylinder block (15) through retaining holes (27a), respectively, formed in the annular shoe holder (27). A swash plate (23) is inserted into the second housing section (1b) such that one lateral surface thereof bears against the shoes (25) with an outer peripheral portion of the swash plate (23) bearing against an end surface of the annular supporting member (24). A third housing section (1c) supporting the rotatable shaft (3) is attached to the second housing section (1b) and then a bracket (8) incorporating an input shaft (11) and a magnetic coupling (9) is attached to the third housing section (1c).

REFERENCES:
patent: Re25750 (1965-03-01), Stewart
patent: 5000667 (1991-03-01), Taguchi et al.

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