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81. 发明专利

GB2189811A Sintered cam shaft 未知
公开(公告)号：GB2189811A
公开(公告)日：1987-11-04
申请号：GB8708020
申请日：1987-04-03
申请人： NIPPON PISTON RING CO LTD
发明人： FUJITA YOSHIAKI , KAWAI SATOSHI , TAKEGUCHI SHUNSUKE
IPC分类号： F01L1/04 , C22C33/02 , C22C38/04

82. 发明专利

GB2154663B APPARATUS FOR SUPPORTING ROTATIONAL SLEEVE OF ROTARY COMPRESSOR BY FLUID 未知
公开(公告)号：GB2154663B
公开(公告)日：1987-10-07
申请号：GB8500164
申请日：1984-05-19
申请人： NIPPON PISTON RING CO LTD
发明人： SAKAMAKI HIROSHI , HORIKOSHI YUKIO , YANAGIHASHI KIKUJI
IPC分类号： F04C18/344 , F04C18/348
摘要： PCT No. PCT/JP84/00254 Sec. 371 Date Jan. 11, 1985 Sec. 102(e) Date Jan. 11, 1985 PCT Filed May 19, 1984 PCT Pub. No. WO84/04783 PCT Pub. Date Dec. 6, 1984.An apparatus provided in a rotary compressor comprising an air-bearing room (40) defined between the inner periphery of the center housing (22) and the outer periphery of the rotary sleeve (30) to have an air-bearing effect for floatingly supporting the rotary sleeve rotating with a plurality of vanes. The air-bearing room (40) is supplied with discharge-pressure air from the discharge chamber (43) or the maximum-pressure air from the compression side working space (43). Guide grooves (74) are partly or fully formed in either or both of the inner periphery of the center housing and the outer periphery of the rotary sleeve. Air enters the air-bearing room and flows along the guide grooves to axially equalize the bearing effect.

83. 发明专利

CA1227469A ROTARY COMPRESSOR 未知
公开(公告)号：CA1227469A
公开(公告)日：1987-09-29
申请号：CA443116
申请日：1983-12-12
申请人： NIPPON PISTON RING CO LTD
发明人： SAKAMAKI HIROSHI , SUGISHITA SUSUMU , HORIKOSHI YUKIO
IPC分类号： F04C18/344 , F04C18/348 , F04C29/00
摘要： OF THE DISCLOSURE A novel rotary compressor is provided herein. It includes a center housing and front and rear side housings, a rotary sleeve mounted for rotation in the center housing, a rotor eccentrically disposed in the rotary sleeve, the rotor having a plurality of vanes radially, movably fitted therein, an air bearing room disposed between the inner periphery of the center housing and the outer periphery of the rotary sleeve, and a pair of discharge and suction chambers. The novel compressor includes at least one high-pressure passage formed in the compression side of the center housing and internally connected to air compressed in the rotary compressor. plurality of throttles communicate with the compression side, inner periphery of the center housing from the high-pressure passage, the high pressure passage forming a circular arc having a subtended angle of less than 170 degrees. In this ways, the air-bearing room is supplied with air compressed in the rotary compressor in order to floutingly support the rotary sleeve. By this structure the rotor is essentially prevented from scuffing the inner periphery of the center housing when it is moved aside to the compression side inner periphery of the center housing by the high-pressure air in the compression working space.

84. 发明专利

CA1227019A METHOD OF MANUFACTURING A ROTOR FOR A ROTARY FLUID PUMP 未知
公开(公告)号：CA1227019A
公开(公告)日：1987-09-22
申请号：CA458897
申请日：1984-07-13
申请人： NIPPON PISTON RING CO LTD
发明人： SAKAMAKI HIROSHI , SUGISHITA SUSUMU , HORIKOSHI YUKIO
IPC分类号： B21D53/00 , F01C21/08 , F04C2/344 , B23P15/00
摘要： A method of forming a rotor for a vane-type rotary pump. The rotor is generally cylindrical with a plurality of vane slots. A tubular member having generally flat sections separated one from the other by corner portions is formed into the rotor by forming the flat sections into slots by deforming the tubular member. The slots are thereafter formed into the vane slots with a die and the corner portions are formed into the outer peripheral surface of the rotor, also using a die.

85. 发明专利

GB2152858B METHOD OF MAKING A HOLLOW CAM SHAFT 未知
公开(公告)号：GB2152858B
公开(公告)日：1987-08-05
申请号：GB8500732
申请日：1985-01-11
申请人： NIPPON PISTON RING CO LTD
发明人： UMEHA GENKICHI , FUJITA YOSHIAKI , SHIMURA ATSUSHI
IPC分类号： B21D51/16 , B21D26/00 , B21D39/04 , B21D53/84 , F01L1/047 , F16H53/02

86. 发明专利

IT1174196B 未知
公开(公告)号：IT1174196B
公开(公告)日：1987-07-01
申请号：IT2139084
申请日：1984-06-13
申请人： NIPPON PISTON RING CO LTD
发明人： SHIGERU URANO , OSAMU HIRAKAWA
IPC分类号： B22F5/00 , C22C33/02 , C22C38/00 , C22C38/20 , C22C38/22 , C22C38/40 , C22C
摘要： PCT No. PCT/JP84/00121 Sec. 371 Date Apr. 1, 1985 Sec. 102(e) Date Apr. 1, 1985 PCT Filed Mar. 23, 1984 PCT Pub. No. WO85/00836 PCT Pub. Date Feb. 28, 1985.An abrasion resistant alloy sintered in a liquid phase, which contains, by weight, 1.5 to 4.0% C, 0.5 to 1.2% Si, 1.0% or less Mn, 2.0 to less than 20.0% Cr, 0.5 to 2.5% Mo, 0.2 to 0.8% P, and the balance of Fe. The alloy is suitable for fabricating sliding parts in internal combustion engines, such as valve mechanisms.

87. 发明专利

GB8708020D0 SINTERED CAM SHAFT 未知
公开(公告)号：GB8708020D0
公开(公告)日：1987-05-07
申请号：GB8708020
申请日：1987-04-03
申请人： NIPPON PISTON RING CO LTD
IPC分类号： F01L1/04 , C22C33/02

88. 发明专利

GB2153965B NITRIDED STEEL CRACK RESISTANT PISTON RING 未知
公开(公告)号：GB2153965B
公开(公告)日：1987-03-18
申请号：GB8501652
申请日：1985-01-23
申请人： NIPPON PISTON RING CO LTD
发明人： UMEZAWA KOJI , TERADAIRA HIROTAKA
IPC分类号： B23P15/06 , F16J9/26

89. 发明专利

GB2157399B BUILT-UP CAMSHAFT AND METHOD OF MANUFACTURING THEREOF 未知
公开(公告)号：GB2157399B
公开(公告)日：1986-12-10
申请号：GB8512930
申请日：1984-03-23
申请人： NIPPON PISTON RING CO LTD
发明人： UMEHA GENKICHI , UDA TAKASI , TAKEGUCHI SHUNSUKE
IPC分类号： B23K1/00 , F01L1/047 , F16H53/02 , B23K1/18 , F01L1/04

90. 发明专利

DE3506747C2 未知
公开(公告)号：DE3506747C2
公开(公告)日：1986-11-13
申请号：DE3506747
申请日：1985-02-26
申请人： NIPPON PISTON RING CO., LTD., TOKIO/TOKYO, JP
发明人： TSUCHIYA, TAKESHI, URAWA, SAITAMA, JP , SAMEJIMA, SHUJI, OMIYA, SAITAMA, JP , KIMURA, TSUTOMU, KUMAGAYA, SAITAMA, JP
IPC分类号： F02F5/00 , F16J9/26
摘要： A piston ring with a nitriding layer on entire surfaces thereof except an outer peripheral surface, and a plating or a spraying layer on the outer peripheral surface of the piston ring.

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