发明名称 ROTARY TYPE EXPANSION MACHINE
摘要 The upper and lower end surfaces (67b, 67c) of a rotary piston (67) have annular sealing grooves (91) formed along the circular end surfaces (67b, 67c), respectively. An annular lip seal (92) is fitted in each sealing groove (91). Thus, lubricating oil fed through an oil feeding channel (49) in a shaft (40) does not substantially flow into a fluid chamber (65) in a cylinder (63) from clearances formed by the upper and lower end surface (67b, 67c) of the rotary piston (67), the rear head (62) and the front head (61). This eliminates shortage of lubricating oil.
申请公布号 EP1726779(A4) 申请公布日期 2012.04.04
申请号 EP20050720759 申请日期 2005.03.15
申请人 DAIKIN INDUSTRIES, LTD. 发明人 OKAMOTO, MASAKAZU;MORIWAKI, MICHIO;KUMAKURA, EIJI;OKAMOTO, TETSUYA;SAKITANI, KATSUMI
分类号 F01C1/356;F01C11/00;F01C13/04;F01C19/08;F01C21/04;F04C18/32;F04C18/356;F04C23/00;F04C27/00;F16J15/18;F16J15/32;F16J15/447 主分类号 F01C1/356
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