Title:
CONDUCTING AND COUPLING MECHANISM
Document Type and Number:
WIPO Patent Application WO2005048272
Kind Code:
A3
Abstract:
A conducting and coupling mechanism driving the leading air control valve of a stratified scavenging two-stroke cycle engine in conjunction with the air-fuel mixture throttle valve of a carburetor. A cam plate (28) having a cam groove (28c) is fitted to the end part of the valve stem (27) of the leading air control valve, and a lever (23) is mounted on the valve stem (22) of the air-fuel mixture throttle valve (21) disposed in a carburetor body (20a). A contact (24) engaged with the cam groove (28c) of the cam plate (28) is disposed on the lever (23). Unshown springs are disposed on the valve stem (22) of the air-fuel mixture throttle valve (21) and the valve stem (27) of the leading air control valve to energize the leading air control valve and the throttle valve in the valve opening directions. A cam mechanism as the conducting and coupling mechanism is formed of the cam plate (28) and the lever (23). Thus, when the leading air control valve or the air-fuel mixture throttle valve is operated for opening or closing, both valves can be forcibly driven in conjunction with each other.
Inventors:
OHTSUJI TAKAMASA (JP)
Application Number:
PCT/JP2004/016855
Publication Date:
July 07, 2005
Filing Date:
November 12, 2004
Export Citation:
Assignee:
KOMATSU ZENOA KK (JP)
OHTSUJI TAKAMASA (JP)
OHTSUJI TAKAMASA (JP)
International Classes:
F02M19/00; F02B25/22; F02D9/02; F02D11/02; F02D11/04; F02M9/02; H01B; (IPC1-7): F02D9/02; F02B25/22; F02D11/02
Foreign References:
| JP2000186559A | 2000-07-04 |
Other References:
See also references of EP 1712762A4
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