Source: https://patents.google.com/patent/JPH0323351A/en
Timestamp: 2019-06-17 05:17:11
Document Index: 498704164

Matched Legal Cases: ['art 10', 'art 13', 'arts 14', 'arts 14', 'art 15', 'art 14', 'art 18']

JPH0323351A - Piston - Google Patents
JPH0323351A
JPH0323351A JP15637889A JP15637889A JPH0323351A JP H0323351 A JPH0323351 A JP H0323351A JP 15637889 A JP15637889 A JP 15637889A JP 15637889 A JP15637889 A JP 15637889A JP H0323351 A JPH0323351 A JP H0323351A
JP15637889A
JP2762575B2 (en
Souichi Hara
1989-06-19 Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
1989-06-19 Priority to JP1156378A priority Critical patent/JP2762575B2/en
1991-01-31 Publication of JPH0323351A publication Critical patent/JPH0323351A/en
1998-06-04 Publication of JP2762575B2 publication Critical patent/JP2762575B2/en
F02F3/022—Pistons having means for accommodating or controlling heat expansion the pistons having an oval circumference or non-cylindrical shaped skirts, e.g. oval
PURPOSE: To reduce the slapping sound of a piston and prevent the seizure by forming the wall thickness from an oil ring groove to a skirt shoulder part, and the height of a spigot of a skirt under part so as to be asymmetrical on thrust and anti-thrust sides, respectively.
CONSTITUTION: A piston main body 1 is formed of a crown part 10 and piston under part 13. At the under inner face of a skirt 13', spigot parts 14, 15 of an anti-thrust and a thrust sides which obtain rigidity of the skirt under part, are respectively formed. In this case, the spigot parts 14, 15 are formed asymmetrically so that the height h2 of the part 15 may be smaller than the height h1 of the part 14. The wall thicknesses of back wall sides from an oil ring groove 11' to a skirt shoulder part 18 are formed asymmetrically so that thickness b1 of the wall side 17 on the thrust side may be thinner than the wall thickness b2 of the back wall side 16 on the anti-thrust side.
JP1156378A 1989-06-19 1989-06-19 piston Expired - Fee Related JP2762575B2 (en)
JP1156378A JP2762575B2 (en) 1989-06-19 1989-06-19 piston
US07/540,638 US5054375A (en) 1989-06-19 1990-06-19 Piston for internal combustion engine
JPH0323351A true JPH0323351A (en) 1991-01-31
JP2762575B2 JP2762575B2 (en) 1998-06-04
ID=15626443
JP1156378A Expired - Fee Related JP2762575B2 (en) 1989-06-19 1989-06-19 piston
US (1) US5054375A (en)
JP (1) JP2762575B2 (en)
JP2881996B2 (en) * 1990-08-03 1999-04-12 坂東機工株式会社 Reciprocating engine
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CN104718369B (en) * 2012-09-18 2017-08-08 费德罗-莫格尔公司 Design having a countersink steel piston
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FR2602827B1 (en) * 1986-08-18 1988-11-04 Melchior Jean A piston for reciprocating machines a gaseous fluid and equipped compression machines such pistons
1989-06-19 JP JP1156378A patent/JP2762575B2/en not_active Expired - Fee Related
1990-06-19 US US07/540,638 patent/US5054375A/en not_active Expired - Fee Related
JP2762575B2 (en) 1998-06-04
US5054375A (en) 1991-10-08
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