JPS59123682U

JPS59123682U - 2 cylinder rotary compressor

Info

Publication number: JPS59123682U
Application number: JP1694383U
Authority: JP
Inventors: 忠　五雄; 藤崎　修二; 川崎　勝行; 泰一小早川
Original assignee: 三菱電機株式会社
Priority date: 1983-02-08
Filing date: 1983-02-08
Publication date: 1984-08-20

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の２気筒回転式圧縮機の収納容器およびそ
の内部を示す縦断面図、第２図は第１図の圧縮機の吸入
通路および吸入通路付近を示す縦断面図、第３図はこの
考案の一実施例による２気筒回転式圧縮機の吸入通路お
よび吸入通路付近を示す両吸入ポート開放状態の縦断面
図、第４図は同一方の吸入ポート閉塞状態の縦断面図で
ある。１・・・駆動軸、９・・・中間仕切板、１０・・・収納
容器、１１−・・吸入管、１１ａ、　　１　ｌｂ−・・
吸入通路、１２゜１３・・・圧縮要素、１４・・・滑り
子、１５・・・形状記憶合金、１６ａ、１６ｂ・・・吸
入ポート。なお、図中同一符号は同一または相当部分を
示す。Fig. 1 is a vertical sectional view showing the storage container and the inside of a conventional two-cylinder rotary compressor, Fig. 2 is a longitudinal sectional view showing the suction passage and the vicinity of the suction passage of the compressor in Fig. 1, and Fig. 3. 4 is a vertical cross-sectional view of a two-cylinder rotary compressor according to an embodiment of the invention, showing the suction passage and the vicinity of the suction passage in a state where both suction ports are open, and FIG. 4 is a vertical cross-sectional view of the same suction port in a closed state. . DESCRIPTION OF SYMBOLS 1... Drive shaft, 9... Intermediate partition plate, 10... Storage container, 11-... Suction pipe, 11a, 1 lb-...
Suction passage, 12° 13... Compression element, 14... Slider, 15... Shape memory alloy, 16a, 16b... Suction port. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

Two rotary compression elements 12 housed within the storage container 10.
13 are arranged in tandem with an intermediate partition plate 9 interposed therebetween, so that one drive shaft 1 drives each of the compression elements 12.13, and two compression elements 12.13 (7) suction port 16a, In a two-cylinder rotary compressor in which low-pressure refrigerant gas suction passages 11a and 16b are connected to the suction pipe 11, the suction passage of the compression element 13 on the downstream side of the low-pressure refrigerant gas flow is connected to the suction port 16b. A cylindrical slider 14 that is slidable in the longitudinal direction of this suction passage 11b and a shape memory alloy 15 that provides axial displacement to this slider 14 are housed in the shape memory alloy 11b.
The two-cylinder rotary compressor is characterized in that the slider 14 closes and opens the suction port 16b of the compression element 13 on the downstream side by expanding and contracting as a result of energization and de-energization.