Stratified scavenging carburetor

Details Stratified scavenging carburetor Stratified scavenging carburetor

2005-05-24

2005-05-24

Chiesa, Richard L. (Department: 1724)

Gas and liquid contact apparatus

Fluid distribution

Systems

C261S023300, C261S052000, C261SDIG001

Reexamination Certificate

active

06896245

ABSTRACT:
A stratified scavenging carburetor with a lost motion coupling permits limited relative movement of a throttle valve relative to an air valve so that initial opening of the throttle valve off idle does not open the air valve to avoid diluting with scavenging air the fuel and air mixture delivered to an engine. Rotation of the throttle valve beyond a predetermined amount from idle causes a corresponding opening of the air valve to provide scavenging air to the engine. Closing a choke valve engages a lock lever with the throttle valve to move the throttle valve off idle to a start position without opening the air valve. In another embodiment, closing the choke valve prevents the air valve from opening even if the throttle valve is moved beyond where the throttle valve would cause the air valve to open if the choke valve were open. Thus, a richer than normal fuel and air mixture can be supplied to the engine during a choke-assisted start and warm-up of the engine.

REFERENCES:
patent: 2325010 (1943-07-01), Mc Curdy
patent: 2941788 (1960-06-01), Braun
patent: 3174469 (1965-03-01), Rappolt
patent: 3439658 (1969-04-01), Simonet
patent: 3967600 (1976-07-01), Iiyama et al.
patent: 4060062 (1977-11-01), Tsutsui et al.
patent: 4073278 (1978-02-01), Glenn
patent: 4094931 (1978-06-01), Karino
patent: 4182295 (1980-01-01), Zeller et al.
patent: 4200083 (1980-04-01), Ishida
patent: 4256063 (1981-03-01), Sumiyoshi et al.
patent: 4294205 (1981-10-01), Iiyama et al.
patent: 4333429 (1982-06-01), Iiyama et al.
patent: 4414162 (1983-11-01), Ii et al.
patent: 4445474 (1984-05-01), Nakao et al.
patent: 4452218 (1984-06-01), Yokoyama et al.
patent: 4796579 (1989-01-01), Wolfe et al.
patent: 4995370 (1991-02-01), Imaeda et al.
patent: 5036816 (1991-08-01), Mann
patent: 5088468 (1992-02-01), Imaeda
patent: 5200118 (1993-04-01), Hermle
patent: 5611312 (1997-03-01), Swanson et al.
patent: 6000683 (1999-12-01), Van Allen
patent: 6202989 (2001-03-01), Pattullo
patent: 6328288 (2001-12-01), Gerhardy
patent: 6439547 (2002-08-01), King et al.
patent: 6708958 (2004-03-01), Warfel et al.
patent: 342274 (1921-10-01), None
patent: 432953 (1926-08-01), None
patent: 2204192 (1973-08-01), None
patent: 2909637 (1979-10-01), None
patent: 3722424 (1988-01-01), None
patent: 0651142 (1995-05-01), None
patent: 52-6835 (1977-01-01), None
patent: 57183520 (1982-11-01), None
patent: 09268918 (1997-10-01), None
patent: WO 9817902 (1998-04-01), None

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