Crankcase scavenged internal combustion engine

Details Crankcase scavenged internal combustion engine Crankcase scavenged internal combustion engine

2005-09-13

2005-09-13

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Two-cycle

Rear compression

C123S055600, C123S0650VB, C123S430000

Reexamination Certificate

active

06941906

ABSTRACT:
A crankcase scavenged internal combustion engine includes a cylinder and a piston reciprocating along the cylinder wall. At least one auxiliary duct is arranged with an auxiliary port in the cylinder wall. An inlet is divided into: a fuel inlet leading to a fuel port and an air inlet leading to an air port. The auxiliary port, fuel port and air port can be opened and closed by the piston. The piston also comprises a transfer space, which mouth edges are limited by the piston periphery, and which, in at least one piston position, creates a connection between the fuel port and the auxiliary duct's port, so that fuel can be supplied to the auxiliary duct via the auxiliary port, and then, after the port later on has been opened by the piston, can flow into the combustion chamber.

REFERENCES:
patent: 4253433 (1981-03-01), Blair
patent: 6564760 (2003-05-01), Laydera-Collins
patent: 26 50 834 (1977-06-01), None
patent: 0 922 660 (2000-04-01), None
patent: 00/43650 (2000-07-01), None
patent: 01/51784 (2001-07-01), None

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