Title:
【発明の名称】クランク室掃気式2行程機関
Document Type and Number:
Japanese Patent JP3396814
Kind Code:
B2
Abstract:
A carburettor for use with a two-stroke engine of the type in which the engine inlet duct is divided into two separate passages includes a circular section duct, which, in use, forms part of the inlet duct of the engine, one or more fuel jets (60, 61, 62) arranged to introduce fuel into the duct, a partition wall (66), which divides part of the duct into two passages and a throttling valve (20) which is pivotally mounted for rotation about a diametral axis to be movable between a closed position, in which it substantially closes the duct, and an open position in, which it extends substantially parallel to the intended direction of air flow through the duct and divides the duct into two equal size passages, namely a first passage closest to the fuel jets and a second passage further from the fuel jets. The fuel jets are arranged to direct fuel towards the throttling valve (20), whereby when the valve (20) is open all the fuel flows into the first passage and only air flows into the second passage and when the valve is closed fuel flows into both the first and second passages. The carburettor includes only a single throttling valve (20) and the partition wall (66) lies in a diametral plane. The partition wall (66) affords an aperture (68) in which the throttling valve (20) is pivotably movable and which is closed by the throttling valve, when the latter is in the open position.
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Inventors:
Glover, Stefan, Bryan
Application Number:
JP2000548601A
Publication Date:
April 14, 2003
Filing Date:
May 06, 1999
Export Citation:
Assignee:
Ricardo Consulting Engineers Limited
International Classes:
F02B25/16; F02B25/22; F02B33/04; F02B33/44; F02M11/10; F02D9/02; F02M13/04; F02M17/34; F02M19/00; F02M35/104; F02M35/108; F02M51/02; F02M69/00; F02B75/02; (IPC1-7): F02B25/16; F02B25/22; F02B33/44; F02M19/00
Domestic Patent References:
JP61185617A | ||||
JP10169454A | ||||
JP245614A | ||||
JP60111019A | ||||
JP59213919A | ||||
JP638286B2 |
Attorney, Agent or Firm:
Muneharu Sasaki (3 outside)
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