JPS6432479U

JPS6432479U -

Info

Publication number: JPS6432479U
Application number: JP12766287U
Authority: JP
Priority date: 1987-08-21
Filing date: 1987-08-21
Publication date: 1989-03-01

Description

[Brief explanation of drawings]

第１〜４図は本考案の一実施例を示すもので、
第１図はピストン式圧縮機の吸入行程時の要部断
面図、第２図は同圧縮行程時の要部断面図、第３
図はピストンのヘツドの正面図、第４図はピスト
ンリングの正面図、第５〜７図はピストンリング
の変更例を示すもので、第５図は要部断面図、第
６図はピストンリングの正面図、第７図は同断面
図、第８図は及び第９図は吸入通路の一部変更例
を示すもので、第８図は要部断面図、第９図はピ
ストンのヘツド正面図、第１０図及び第１１図は
それぞれ従来例を示す断面図である。１…ピストン、２…シリンダ、３…圧縮室、４
…低圧室、５…リング溝、６…ピストンリング。 Figures 1 to 4 show an embodiment of the present invention.
Figure 1 is a sectional view of the main part of a piston compressor during the suction stroke, Figure 2 is a sectional view of the main part during the compression stroke, and Figure 3 is a sectional view of the main part during the compression stroke.
The figure is a front view of the piston head, Figure 4 is a front view of the piston ring, Figures 5 to 7 show examples of changes to the piston ring, Figure 5 is a sectional view of the main part, and Figure 6 is a piston ring. 7 is a sectional view of the same, FIGS. 8 and 9 show examples of partial changes to the suction passage, FIG. 8 is a sectional view of the main part, and FIG. 9 is a front view of the piston head. 10 and 11 are sectional views showing conventional examples, respectively. 1...Piston, 2...Cylinder, 3...Compression chamber, 4
...Low pressure chamber, 5...Ring groove, 6...Piston ring.

Claims

[Claims for Utility Model Registration] (1) In a piston compressor, a piston fitted in a cylinder so as to be reciprocally movable communicates a compression chamber and a low pressure chamber in the same cylinder and provides suction through a ring groove. A piston ring is fitted into the ring groove so as to be movable by a predetermined amount in the axial direction, and the suction passage is formed by relative displacement of the piston ring with respect to the piston due to frictional resistance of the piston ring against the inner peripheral surface of the cylinder. A suction valve mechanism for a piston compressor that opens and closes. (2) The suction passage is between a first clearance provided between the outer peripheral surface of the piston and the inner peripheral surface of the cylinder, and the bottom surface of the ring groove of the piston and the inner peripheral surface of the piston ring. The piston according to claim 1, which is formed by a second clearance provided and a communication portion provided in the head portion of the piston so as to communicate with the bottom of the ring groove. Suction valve mechanism of a type compressor. (3) The suction valve mechanism for a piston compressor according to claim 2, wherein the communication portion of the piston is formed by a notched groove. (4) The suction valve mechanism for a piston compressor according to claim 2, wherein the communication portion of the piston is formed by a communication hole. (5) The suction valve mechanism for a piston compressor according to claim 2, wherein a recess corresponding to the communication portion of the piston is formed in the inner peripheral surface of the piston ring.