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US 2012/0247442 A1Published application
Stratified two-stroke engine
OwnerNagesh S. Mavinahallyinventor
Life of this patent
Estimating the term…
Abstract
Various embodiments include two-stroke stratified engines and dual passage carburetors for use with gaseous fuel and liquid fuels. A stratified air-head engine having a simpler intake manifold with a single air pipe for induction of air is included.
Claims6
A dual passage carburetor (9000) comprising:
- a main throttle body (401);
- a secondary throttle body (8901);
- at least one fuel orifice (411b) in the secondary throttle body (8901);
- an air only passage 8310 in the main throttle body (401);
- an air only valve 81b;
- a rich charge passage 8300;
- a rich valve 994b, in which the air only valve 81b and rich valve 994b are inter connected through a linkage 9408;
- a fuel metering chamber (317);
- at least one fuel passage (220b) connecting fuel metering chamber (317) to the at least one fuel orifice (411b) in the secondary throttle body (8901);
- a fuel inlet (620);
- and
- at least one fuel orifice in the rich charge passage (8300).
9 more elements
A stratified engine 360 having:
- a piston 2016;
- a combustion chamber 30;
- at least one intake port 84;
- at least one exhaust port 50;
- at least one transfer passage 11;
- at least one transfer port 33;
- a simple manifold (heat dam) 904c;
- a crankcase chamber 26, in which the crankcase chamber 26 and combustion chamber 30 are intermittently connected to each other as the piston 2016 moves upward and downward;
- a crankshaft 22 having a crank web 21;
- a connecting rod 18;
- a cylinder 2012;
- a single air pipe 87, in which the air pipe 87 diverges into at least two air pipes 89′ and 89″, one on each side of the cylinder 2012 and with at least one one-way valve at the end of each air pipe 89′ and 89″;
- and
- a single exit air throttle body 8902.
11 more elements
Dependencies are inferred from the claim text.