Swash plate compressor and piston therefor
AssigneeKabushiki Kaisha Toyoda Jidoshokki Seisakusho
InventorsTakayuki Kato, Seiji Katayama, Takahiro Hoshida, Fuminobu Enokijima
Life of this patent
Estimating the term…
Abstract
A piston includes an engagement portion that engages with a swash plate. The engagement portion is provided with a pair of arm portions and a coupling portion for coupling base ends of the arm portions each other. An axial rib extending in the axial direction is integrally provided in a central part of a back surface of the coupling portion in the width direction orthogonal to a central axis of a head portion of the piston. An accommodation groove is formed on an inner circumferential surface of a cylinder bore corresponding to the axial rib, such that the axial rib does not interfere with the cylinder bore when the piston moves to the top dead center.
Claims10
A piston for a swash plate compressor, comprising:
- a head portion to be fitted in a cylinder bore;
- and
- an engagement portion, integrally formed with said head portion, which has a pair of arm portions and a coupling portion for coupling base ends of said arm portions to each other and engages with a swash plate while crossing over a circumference part of the swash plate,
- wherein said engagement portion is provided with a rotation regulating portion and a protruding portion, the protruding portion is separate from said rotation regulating portion and protrudes radially outwardly from a back surface on the opposite side of a swash plate side of the coupling portion.
A piston for a swash plate compressor, comprising:
- a head portion to be fitted in a cylinder bore;
- and
- an engagement portion, integrally formed with said head portion, which has a pair of arm portions and a coupling portion for coupling base ends of said arm portions to each other and engages with a swash plate while crossing over a circumference part of the swash plate,
- wherein said engagement portion is provided with a protruding portion that protrudes radially outwardly from a back surface on the opposite side of a swash plate side of the coupling portion, said protruding portion is sized and configured to reciprocatingly move within a cylinder bore in a non-contacting manner during operation of a swash plate compressor.
A compressor, comprising:
- a housing comprising a cylinder bore, said cylinder bore including a recess formed in an inner circumferential surface thereof;
- a piston comprising:
- a head portion to be fitted within said cylinder bore;
- and
- an engagement portion, integrally formed with said head portion, which has a pair of arm portions and a coupling portion for coupling base ends of said arm portions with each other, and which engages with a swash plate while crossing over a circumference part of the swash plate,
- wherein said engagement portion is provided with a protruding portion that protrudes radially outwardly, said protruding portion reciprocatingly moves within said recess;
- and
- a swash plate for reciprocatingly moving said piston by converting its rotational motion about a rotation axis into a reciprocating motion while engaging with said engagement portion and inclining with respect to the rotation axis.
Dependencies are inferred from the claim text.