Low friction valve train

Details Low friction valve train Low friction valve train

1994-01-19

1999-08-10

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Tappet

123 9033, 123 906, 1231889, F01L 102

Patent

active

059342366

ABSTRACT:
A low friction valve train actuating at least one valve in an internal combustion engine includes a cam shaft having at least one cam, a tappet contacting the cam and valve, the cam and valve having outer surfaces with an open porosity, a solid film lubricant impregnated and anchored in the open porosity, the solid film lubricant is stable to temperatures at about 700.degree. F. to retain a low coefficient of friction in an oil starved environment.

REFERENCES:
patent: Re33888 (1992-04-01), Hartnett et al.
patent: Re34143 (1992-12-01), Rao et al.
patent: 3303833 (1967-02-01), Melling
patent: 3958541 (1976-05-01), Lachnit
patent: 4153017 (1979-05-01), Behnke
patent: 4312900 (1982-01-01), Simpson
patent: 4366785 (1983-01-01), Goloff et al.
patent: 4367701 (1983-01-01), Buente
patent: 4430970 (1984-02-01), Holtzberg et al.
patent: 4558960 (1985-12-01), Lehtinen et al.
patent: 4594973 (1986-06-01), Allred et al.
patent: 4644912 (1987-02-01), Umeha et al.
patent: 4777842 (1988-10-01), Yamada
patent: 4781075 (1988-11-01), Yamaji et al.
patent: 4796575 (1989-01-01), Matsubara et al.
patent: 4835832 (1989-06-01), Arnold et al.
patent: 4871266 (1989-10-01), Oda
patent: 4872432 (1989-10-01), Rao et al.
patent: 4873150 (1989-10-01), Doi et al.
patent: 4909198 (1990-03-01), Shiraya et al.
patent: 4917953 (1990-04-01), Hioki et al.
patent: 4922785 (1990-05-01), Arnold et al.
patent: 4969262 (1990-11-01), Hiraoka et al.
patent: 4993282 (1991-02-01), Swars
patent: 4995281 (1991-02-01), Allor et al.
patent: 5007165 (1991-04-01), Podhorsky
patent: 5029562 (1991-07-01), Kamo
patent: 5035959 (1991-07-01), Ito et al.
patent: 5040501 (1991-08-01), Lemelson
patent: 5041168 (1991-08-01), Purnell et al.
patent: 5052352 (1991-10-01), Taniguchi et al.
patent: 5054440 (1991-10-01), Kadokawa
patent: 5060607 (1991-10-01), Taniguchi
patent: 5063894 (1991-11-01), Mielke et al.
patent: 5066145 (1991-11-01), Sibley et al.
patent: 5067369 (1991-11-01), Taniguchi
patent: 5101554 (1992-04-01), Breuer et al.
patent: 5197351 (1993-03-01), Hishida
patent: 5237967 (1993-08-01), Willermet et al.
patent: 5245888 (1993-09-01), Tsuzuki et al.

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