A carburetor achieves better emission characteristics while improving a combustion state by increasing a delivery ratio of a stratified scavenging engine and reducing intake resistance. No dividing wall is provided between a throttle valve 204 and a choke ...

A stratified scavenging two-cycle engine (10) comprising an engine body (11), a carburetor (12) equipped with a pivotable rotary valve (22) for switching between opening and closing of a single intake path, and an insulator (13) having heat insulating perf...

A stratified scavenging two-cycle engine (10) comprising an engine body (11), a carburetor (12) equipped with a pivotable rotary valve (22) for switching between opening and closing of a single intake path, and an insulator (13) having heat insulating perf...

In a carburetor (1) including a choke valve (7) on the upstream side inside an aspiration passage (3) and a throttle valve (8) on the downstream side, the valves (7) and (8) are disposed at positions such that the valves adjacently oppose each other when h...

A two-stroke engine of the present invention has a scavenging passage 19 opening in a combustion chamber 12 in a scavenging stroke to fill the combustion chamber with a working gas containing a fuel; and a scavenge filling chamber 18 communicating through ...

The enhanced two-stroke engine (1) comprises a crankcase (2), a cylinder (3) provided with an exhaust port (6), a series of transfer ports (7) communicating with the crankcase (2), the cylinder (3) further comprises at least an air inlet port (8) positione...

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) ...