Sealing structure of a rotary valve in an internal combustion en

Details Sealing structure of a rotary valve in an internal combustion en Sealing structure of a rotary valve in an internal combustion en

1981-12-07

1984-08-28

Feinberg, Craig R.

Internal-combustion engines

Valve

Rotary

F01L 716

Patent

active

044677510

ABSTRACT:
A sealing structure of a rotary valve in an internal combustion engine in which a recess is formed either at an opening portion of a rotary valve proper or at an opening portion of a combustion chamber in a housing and in which a seal member slidably fitted in the recess is resiliently pushed against the opposing part by means of a spring member. An annular resilient member is interposed between the lower surface of the seal member and the opposing bottom surface of the recess in such a manner that the two ends of the resilient member are respectively in contact with the surfaces of the seal member and the recess. Thereby, the contact pressure at the ends of the resilient member is increased by utilizing the gas pressure in the combustion chamber. Further, the pushing force of the seal member against the opposing part is increased, so as to enhance sealing efficiency.

REFERENCES:
patent: 1363894 (1920-12-01), Molstad
patent: 1671254 (1928-05-01), Porter
patent: 2017196 (1935-10-01), Anglada et al.
patent: 2330583 (1943-09-01), Heylandt et al.
patent: 3871340 (1975-03-01), Zimmerman

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