JPS63191275U

JPS63191275U -

Info

Publication number: JPS63191275U
Application number: JP5067287U
Authority: JP
Priority date: 1987-01-27
Filing date: 1987-04-03
Publication date: 1988-12-09

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示すピストン形流体
機械のピストン・スリツパの側断面図、第２図は
第１図の〜断面図、第３図は第１図と異なる
実施例を示すピストン・スリツパの側断面図、第
４図は本考案の第三実施例を示すピストン・スリ
ツパの側断図、第５図は第４図の―矢視断面
図、第６図は従来の斜板形アキシヤルピストンポ
ンプ及びモータの側断面図、第７図は従来のピス
トン・スリツパの側断面図である。図の主要部分の説明、２……シリンダブロツク
、５……ピストン、５ａ……油路、５ｂ……円錐
部、６……スリツパ、６ａ……油路、６ｂ……バ
ランス室、６ｄ……摺動面、７……斜板、２０，
２０′……導油溝、２１，２１′……環状溝、２
２……外側環状溝、２３……内側環状溝、２４…
…外側導油穴、２５……内側導油穴。 Fig. 1 is a side sectional view of a piston slipper of a piston-type fluid machine showing an embodiment of the present invention, Fig. 2 is a sectional view of Fig. 1, and Fig. 3 is a piston showing an embodiment different from Fig. 1.・Side sectional view of the slipper, FIG. 4 is a side sectional view of the piston slipper showing the third embodiment of the present invention, FIG. 5 is a sectional view taken along the - arrow in FIG. 4, and FIG. 6 is a conventional swash plate. FIG. 7 is a side sectional view of a conventional piston slipper. Explanation of the main parts of the figure, 2... Cylinder block, 5... Piston, 5a... Oil passage, 5b... Conical part, 6... Slipper, 6a... Oil passage, 6b... Balance chamber, 6d... Sliding surface, 7...Swash plate, 20,
20'... Oil guide groove, 21, 21'... Annular groove, 2
2... Outer annular groove, 23... Inner annular groove, 24...
...Outer oil guide hole, 25...Inner oil guide hole.

Claims

[Scope of utility model registration request]

In a fluid machine in which a piston, which is engaged with a stopper by a spherical bearing, reciprocates within a cylinder, an annular groove centered on the axis of the bearing is formed on the inner surface of the spherical bearing, and pressure oil in the cylinder is connected to the annular groove. A piston-type fluid machine characterized by having an oil guide path communicating with an oil path.