JPS6413288U

JPS6413288U -

Info

Publication number: JPS6413288U
Application number: JP10721387U
Authority: JP
Priority date: 1987-07-13
Filing date: 1987-07-13
Publication date: 1989-01-24

Description

[Brief explanation of the drawing]

第１図はこの考案による一実施例の回転式圧縮
機の要部を示す縦断面図、第２図はこの考案によ
る他の実施例による主軸受けの縦断面図、第３図
は同端軸受けの縦断面図、第４図は同シリンダの
概略横断面図、第５図および第６図は従来の回転
式圧縮機の一例および他例をそれぞれ示す縦断面
図である。１……密閉容器、２……圧縮要素、３……電動
機、６……クランク軸、７……吸入管、８……シ
リンダ、８ｂ……吸入口、９……主軸受け、１０
……端軸受け、１１……ピストン、１２ａ，１２
ｂ，１２ｃ，１２ｄ……断熱材層。なお、図中同
一符号は同一又は相当部分を示す。 Fig. 1 is a vertical sectional view showing the main parts of a rotary compressor according to one embodiment of this invention, Fig. 2 is a longitudinal sectional view of a main bearing according to another embodiment of this invention, and Fig. 3 is a same-end bearing. FIG. 4 is a schematic cross-sectional view of the same cylinder, and FIGS. 5 and 6 are vertical cross-sectional views showing one example and another example of a conventional rotary compressor, respectively. DESCRIPTION OF SYMBOLS 1... Airtight container, 2... Compression element, 3... Electric motor, 6... Crankshaft, 7... Suction pipe, 8... Cylinder, 8b... Suction port, 9... Main bearing, 10
... End bearing, 11 ... Piston, 12a, 12
b, 12c, 12d...Insulating material layer. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Claims for Utility Model Registration] (1) In a compression chamber surrounded by a cylinder and a main bearing and an end bearing that close both ends of the cylinder, an eccentric A rotating piston is disposed, and a compression element is provided in which a vane is attached to the cylinder, and the vane is always in contact with the outer peripheral surface of the piston and divides the compression chamber into a high pressure side and a low pressure side, and this compression element is housed in a closed container. In a rotary compressor in which lubricating oil is stored at the bottom of the sealed container, the compression element part through which the refrigerant gas sucked into the compression element passes before starting compression is made of a material with low thermal conductivity. A rotary compressor characterized by having a heat insulating layer. (2) The rotary compressor according to claim 1, wherein the cylinder is provided with a heat insulating layer by inserting a heat insulating material formed into a substantially cylindrical shape with a strainer inside into the suction port. (3) The rotary compressor according to claim 1, wherein the cylinder is provided with a heat insulating material layer on the inner peripheral wall surface which is in contact with the refrigerant gas to be sucked. (4) The rotary compressor according to claim 1, wherein the main bearing is provided with a heat insulating material layer on the end surface that is in contact with the refrigerant gas to be sucked. (5) The rotary compressor according to claim 1, wherein the end bearing is provided with a heat insulating material layer on the end surface in contact with the refrigerant gas to be sucked.