JPH0250194U

JPH0250194U -

Info

Publication number: JPH0250194U
Application number: JP12966288U
Authority: JP
Priority date: 1988-10-03
Filing date: 1988-10-03
Publication date: 1990-04-09
Anticipated expiration: 2003-10-03
Also published as: JPH075272Y2

Description

[Brief explanation of drawings]

第１図は本考案にかかるロータリー圧縮機の縦
断面図、第２図はリヤヘツドの下面図、第３図は
シリンダの下面図、第４図は同圧縮機の要部を拡
大した断面図、第５図は従来例を示す断面図であ
る。１……密閉ケーシング、３……圧縮要素、３１
……シリンダ、３１ａ……シリンダ室、３２……
フロントヘツド、３２ａ……フロント吐出孔、３
３……リヤヘツド、３３ａ……リヤ吐出孔、３５
……偏心部、３６……フロントマフラー、３７…
…リヤマフラー、５……導入孔、６……凹溝、７
……排出孔。 Fig. 1 is a longitudinal sectional view of a rotary compressor according to the present invention, Fig. 2 is a bottom view of the rear head, Fig. 3 is a bottom view of the cylinder, and Fig. 4 is an enlarged sectional view of the main parts of the compressor. FIG. 5 is a sectional view showing a conventional example. 1... Sealed casing, 3... Compression element, 31
...Cylinder, 31a...Cylinder chamber, 32...
Front head, 32a...Front discharge hole, 3
3...Rear head, 33a...Rear discharge hole, 35
...Eccentric part, 36...Front muffler, 37...
...Rear muffler, 5...Introduction hole, 6...Concave groove, 7
...Exhaust hole.

Claims

[Scope of utility model registration request]

The compression element 3 is provided with a cylinder 31 having a cylinder chamber 31a in which an eccentric portion 35 is arranged, and front and rear heads 32 and 33 for closing the cylinder chamber 31a. A front discharge hole 32a and a rear discharge hole 33 are provided in each of the heads 32 and 33, respectively.
a, and front and rear mufflers 36, 37 that cover the respective discharge holes 32a, 33a, the rear head 33 has the rear mufflers 36, 37 located approximately symmetrically to the opening position of the rear discharge holes 33a. An introduction hole 5 for introducing discharged fluid discharged into the muffler 37 is formed through the muffler 37, and communicates with the introduction hole 5 on the rear head side end surface of the cylinder 31, and the eccentric A groove 6 extending toward the high-pressure side on the rotational direction advancing side of the portion 35 is formed, and a discharge hole 7 communicating with the terminal end of the groove 6 is formed through the cylinder 31 and the front head 32. 7 is open into the casing 1 at the outer end of the front muffler 36.