Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Patent
1997-09-12
1999-03-02
Lo, Wellun
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
123 9031, 123 9037, 74568R, 464 2, 464160, F01L 1344
Patent
active
058757503
ABSTRACT:
In a rotational phase adjusting apparatus which may be used for controlling opening/closing timings of intake and exhaust valves of an internal combustion engine, one side wall of a housing is fixed to one of a driving member and a driven member, while the other side wall of the housing is made integrally with a circumferential wall of the housing. A seal made of a material less harder than the housing is provided between the housing and a vane. The housing is made of an aluminum while the seal is made of a PPS resin mixed with an inorganic filler. The inorganic filler is harder than the PPS resin but less harder than the housing to reduce wear of the housing.
REFERENCES:
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patent: 5205249 (1993-04-01), Markley et al.
patent: 5361735 (1994-11-01), Butterfield et al.
patent: 5450825 (1995-09-01), Geyer et al.
patent: 5666914 (1997-09-01), Ushida et al.
patent: 5727508 (1998-03-01), Goppelt
Adachi Michio
Inai Isamu
Iwasaki Kazutoshi
Kayano Hisashi
Ushida Masayasu
Denso Corporation
Lo Wellun
LandOfFree
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