Back to results
US 5,626,106 AGranted
Migrating combustion chamber engine
AssigneeEngine Research Associates, Inc.
InventorsFrederick L. Erickson, Frederick Lynn Erickson, Jeffrey L. Erickson
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeEngine Research Associates, Inc.
InventorsFrederick L. Erickson, Frederick Lynn Erickson, Jeffrey L. Erickson
Estimating the term…
Design Improvements are disclosed which enhance the migrating combustion chamber engine's ability to achieve improved performance, obtain higher durability and cost less to manufacture. These include strip seals between the combustion chamber member and orbiting piston which are adapted to respond to the pressure of combustion to increase contact pressure and improve retention of the gases in the combustion chambers as well as improved porting located in at least one power block sidewall and cooperating with the migrating combustion chamber to convey hot combustion gasses from a combustion chamber to a corresponding secondary expansion chamber. The combustion chamber member may be formed of two reciprocable piston portions and a pair of separate alloy steel connecting bars coupling the piston portions together. The connecting bars made of a low thermal conductivity material to remain hot and aid in fuel evaporation. A one piece counterweight hub provides all required counterweights. It attaches to the crankshaft by a first clamp which clamps the counterweight hub onto the crankshaft, and second clamp which pulls an inside bore of the hub axially tight against an end of the crankshaft. Improvements in exhaust porting, ignition location, manifold and combustion chamber member designs as well as unique power block housing wear strips and crankshaft counterbalancing techniques are also disclosed.
In a migrating combustion chamber internal combustion engine having a stationary power block housing, a combustion chamber member, an orbiting piston, a crankshaft, and bearing means rotatably joining said crankshaft and said orbiting piston, wherein the orbiting piston is adapted to reciprocate inside and along a first axis relative to the combustion chamber member whereby two combustion chambers are formed with the orbiting piston separating them, and wherein said combustion chamber member is adapted to reciprocate inside and relative to the stationary power block housing along a second axis generally perpendicular to said first axis, whereby the orbiting piston is guided through a circular motion by the crankshaft;
In a migrating combustion chamber internal combustion engine having a stationary power block housing, a combustion chamber member, an orbiting piston, a crankshaft, and bearing means rotatably joining said crankshaft and said orbiting piston, wherein the orbiting piston is adapted to reciprocate inside and along a first axis relative to the combustion chamber member whereby two combustion chambers are formed with the orbiting piston separating them and two secondary expansion chambers are formed between the migrating combustion chamber and the stationary power block housing, and wherein said combustion chamber member is adapted to reciprocate inside and relative to the stationary power block housing along a second axis generally perpendicular to said first axis, whereby the orbiting piston is guided through a circular motion by the crankshaft;
In a migrating combustion chamber internal combustion engine having a stationary power block housing, a combustion chamber member, an orbiting piston, a crankshaft, and bearing means rotatably joining said crankshaft and said orbiting piston, wherein the orbiting piston is adapted to reciprocate inside and along a first axis relative to the combustion chamber member whereby two combustion chambers are formed with the orbiting piston separating them, and wherein said combustion chamber member is adapted to reciprocate inside and relative to the stationary power block housing along a second axis generally perpendicular to said first axis, whereby the orbiting piston is guided through a circular motion by the crankshaft;
Dependencies are inferred from the claim text.