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Machine translation
1. (WO1980000738) LOW-FRICTION PISTON
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000738    International Application No.:    PCT/US1979/000611
Publication Date: 17.04.1980 International Filing Date: 15.08.1979
IPC:
F16J 1/02 (2006.01), F16J 9/08 (2006.01), F16J 9/20 (2006.01)
Applicants:
Inventors:
Priority Data:
944132 20.09.1978 US
Title (EN) LOW-FRICTION PISTON
(FR) PISTON A FAIBLE FROTTEMENT
Abstract: front page image
(EN)A piston (90) comprising hydrodynamic skirts (30) and crowns (20), pressure actuated sealing rings (70") of fixed excursion or balanced by hydrodynamic reactions, or no rings at all, stringent temperature control, ample oil on the cylinder wall even near top-dead-center, characterized by absence of abrasion between piston and cylinder and much lower friction, resulting thereby, in higher fuel economy and longer engine life.
(FR)Un piston (90) comprenant des jupes (30) et des couronnes (20) hydrodynamiques, des segments d"etancheite actionnes par la pression (70") a deplacement fixe ou compenses par les reactions hydrodynamiques, ou sans aucun segment, un controle rigoureux de la temperature, beaucoup d"huile sur la paroi du cylindre meme pres du point mort haut se caracterise par l"absence d"abrasion entre le piston et le cylindre et une friction tres reduite qui se traduit par une plus grande economie de carburant et une longevite du moteur accrue.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)