JPH041682U

JPH041682U -

Info

Publication number: JPH041682U
Application number: JP4018590U
Authority: JP
Priority date: 1990-04-13
Filing date: 1990-04-13
Publication date: 1992-01-08

Description

[Brief explanation of the drawing]

第１〜６図は本考案を具体化した一実施例を示
し、第１図は第３図のＢ−Ｂ線断面図、第２図ａ
は第１図のＡ−Ａ線拡大断面図、第２図ｂは部分
拡大断面図、第３図は側断面図、第４図はシリン
ダボア内の圧力変化を示すグラフ、第５図は冷媒
ガス導入溝の有無に応じた騒音レベル差を説明す
るためのグラフ、第６図ａは面粗度に応じた体積
効率の変化を示すグラフ、第６図ｂは同じく面粗
度に応じた騒音の変化を示すグラフ、第７図は別
例を示す縦断面図、第８図は第７図のＣ−Ｃ線拡
大断面図である。バルブプレート……８，１２、吐出ポート……
８ｂ，１２ｂ、冷媒ガス導入溝……８ｃ，１２ｃ
、接続通路……８ｄ，１２ｄ。 1 to 6 show an embodiment of the present invention, and FIG. 1 is a sectional view taken along line B-B in FIG. 3, and FIG.
is an enlarged sectional view taken along the line A-A in Fig. 1, Fig. 2b is a partially enlarged sectional view, Fig. 3 is a side sectional view, Fig. 4 is a graph showing pressure changes in the cylinder bore, and Fig. 5 is a graph showing refrigerant gas. A graph for explaining the difference in noise level depending on the presence or absence of an introduction groove, Figure 6a is a graph showing changes in volumetric efficiency depending on surface roughness, and Figure 6b is a graph showing the difference in noise level depending on surface roughness. FIG. 7 is a longitudinal sectional view showing another example, and FIG. 8 is an enlarged sectional view taken along the line CC in FIG. 7. Valve plate...8, 12, discharge port...
8b, 12b, refrigerant gas introduction groove...8c, 12c
, connection passage...8d, 12d.

Claims

[Scope of utility model registration request]

The refrigerant gas in the cylinder bore is discharged into the discharge chamber through the discharge port on the valve plate by the reciprocating movement of the piston in the cylinder block, which is connected to the housing that forms the discharge chamber via the valve plate, and the piston reciprocates. In a compressor in which a discharge port is opened and closed by a discharge valve according to operation, a refrigerant gas introduction groove is provided in the joint area with the discharge valve around the discharge port on the valve plate, and the refrigerant gas introduction groove and the cylinder bore are connected. A noise reduction structure in a compressor that connects the two with a connecting passage.