JPH024981U

JPH024981U -

Info

Publication number: JPH024981U
Application number: JP8333788U
Authority: JP
Priority date: 1988-06-23
Filing date: 1988-06-23
Publication date: 1990-01-12

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による冷媒圧縮機
の容量制御装置部を示す概略平面図、第２図は第
１図の−線に沿う容量制御時の拡大断面図、
第３図は第１図の−線に沿つた非容量制御時
に対応する拡大断面図、第４図はこの考案による
弁体の断面図、第５図は従来の冷媒圧縮機の概略
平面図、第６図は第５図の−線に沿う容量制
御時の拡大断面第７図は第５図の−線に沿つ
た非容量制御時に対応する拡大断面図である。１はクランク室、１ａは吸込室、１ｂは吐出室
、２はシリンダ部、３は弁装置、４はシリンダカ
バー、５はバイパス弁体、５ａは内部室、６は圧
縮ばね、７はカバー、７ａは突出部、８は電磁弁
、９は配管、１０は逆止弁、１１は圧縮コイルば
ね、１２はカバー、１３は弁体、１４はらせん溝
を設けた弁体、１４ａはらせん溝、１５はらせん
溝を設けた弁体用の逆止弁である。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 schematic plan view showing the capacity control device section of a refrigerant compressor according to an embodiment of the invention, FIG. 2 is an enlarged sectional view taken along the - line in FIG. 1 during capacity control,
FIG. 3 is an enlarged sectional view corresponding to non-capacity control along the - line in FIG. 1, FIG. 4 is a sectional view of the valve body according to this invention, and FIG. 5 is a schematic plan view of a conventional refrigerant compressor. FIG. 6 is an enlarged sectional view taken along the - line in FIG. 5 during capacity control; FIG. 7 is an enlarged sectional view taken along the - line in FIG. 5 during non-capacity control. 1 is a crank chamber, 1a is a suction chamber, 1b is a discharge chamber, 2 is a cylinder section, 3 is a valve device, 4 is a cylinder cover, 5 is a bypass valve body, 5a is an internal chamber, 6 is a compression spring, 7 is a cover, 7a is a protrusion, 8 is a solenoid valve, 9 is piping, 10 is a check valve, 11 is a compression coil spring, 12 is a cover, 13 is a valve body, 14 is a valve body provided with a helical groove, 14a is a helical groove, 15 is a check valve for a valve body provided with a spiral groove. In addition, in the figure,
The same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A cylinder cover equipped with a capacity control device for a refrigerant compressor includes a valve body that prevents backflow of discharged gas, a cover fixed to the cylinder cover, and a cover that is interposed between the cover and the valve body to prevent blockage of the valve body. In a refrigerant compressor equipped with a check valve constituted by a compression coil spring that biases the valve body, a helical groove is provided on the inner circumference of the valve body, and one end of the compression coil spring is screwed into the helical groove. A refrigerant compressor characterized by being fixed in place.