JPS5988284U - refrigerant compressor - Google Patents

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図ａは従来の冷媒圧縮機の断面図、第１図すは第１
図ａのＡ−Ａ線の断面図、第１図Ｃは第１図すのＢ−Ｂ
線の断面図、第２図はこの考案の冷媒圧縮機の一実施例
の構成を示す断面図である。 １・・・ピストン、２・・・シリンダ、３・・・コンロ
ッド、４・・・クランク軸、４ａ・・・油孔、４ｂ・・
・ガス抜き孔、５・・・油ストレーナ、６・・・オイル
ポンプ、７・・・主軸受メタル、８ａ・・・主軸受ハウ
ジング、８ｂ・・・油連通孔、９・・・クランクケース
、９ａ・・・中間軸受ハウジング、１０・・・隔室、１
１・・・第１め油逃し溝、１２・・・スラスト軸受、１
３・・・油溜め、１４・・・油圧調整弁、１４ａ・・・
油逃し穴、１５・・・第２の油逃し溝、１５ａ・・・油
出口。尚、図中同一符号は同−又・は相当部分を示す。Figure 1a is a sectional view of a conventional refrigerant compressor;
A cross-sectional view taken along line A-A in Figure a, and Figure 1 C is B-B in Figure 1.
2 is a sectional view showing the structure of an embodiment of the refrigerant compressor of this invention. 1... Piston, 2... Cylinder, 3... Connecting rod, 4... Crankshaft, 4a... Oil hole, 4b...
・Gas vent hole, 5... Oil strainer, 6... Oil pump, 7... Main bearing metal, 8a... Main bearing housing, 8b... Oil communication hole, 9... Crank case, 9a... Intermediate bearing housing, 10... Compartment, 1
1... First oil relief groove, 12... Thrust bearing, 1
3... Oil reservoir, 14... Hydraulic pressure adjustment valve, 14a...
Oil relief hole, 15...Second oil relief groove, 15a...Oil outlet. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 圧縮要素を納めた圧縮室と駆動要素を納めた電動機室と
に仕切るクランクケース内部の中間仕切壁に設けられた
中間軸受ハウジング、この中間軸受ハウジングに嵌入さ
れた主軸受メタルおよびスラスト軸受により支承され、
軸中に油回路が形成されたクランク軸、このクランク軸
により駆動され、前記油回路に油を吐出するオイルポン
プ、および前記クランクケースの油溜め方向に開口する
逃し穴を存し、前記油回路内の油圧を一定に調整する油
圧調整弁を備え、前記中間軸受ハウジングの主軸受メタ
ル嵌入面に形成された環状の隔室に前記油回路のガス抜
き穴を開口させた冷媒圧縮機において、前記隔室に連通
ずる第１の油逃し溝を前記中間軸受ハウジングの主軸受
メタル嵌入面最下部に沿って設けると共に前記中間軸受
ハウジングの圧縮室側の端面１こ、一端が前記第１の油
逃し溝と連通した第２の油逃し溝を設けて前記主軸受メ
タルおよびスラスト軸受の反軸受面側とによって油逃し
通路を形成し、かつ前記油逃し通路の他端を前記油溜め
方向へ開口させてなることを特徴とする冷媒圧縮機。The intermediate bearing housing is installed on the intermediate partition wall inside the crankcase that separates the compression chamber containing the compression element and the motor chamber containing the drive element, and is supported by the main bearing metal and thrust bearing fitted into this intermediate bearing housing. ,
The oil circuit includes a crankshaft having an oil circuit formed in the shaft, an oil pump driven by the crankshaft and discharging oil into the oil circuit, and a relief hole opening toward the oil reservoir of the crankcase. In the refrigerant compressor, the refrigerant compressor is equipped with an oil pressure regulating valve that adjusts the oil pressure in the oil circuit to a constant level, and has a gas vent hole in the oil circuit opened in an annular compartment formed in the main bearing metal fitting surface of the intermediate bearing housing. A first oil relief groove communicating with the compartment is provided along the lowermost part of the main bearing metal fitting surface of the intermediate bearing housing, and one end of the compression chamber side end surface of the intermediate bearing housing is provided with the first oil relief groove. A second oil relief groove communicating with the groove is provided to form an oil relief passage by the main bearing metal and the opposite bearing surface side of the thrust bearing, and the other end of the oil relief passage is opened toward the oil reservoir. A refrigerant compressor characterized by: