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US 3,938,480 AGranted
Internal combustion engine
OwnerLeon M. Yandainventor
Life of this patent
Estimating the term…
Abstract
A reciprocating piston device has its pistons and cylinders arranged in a circle, each piston and each cylinder being rotatable about a common shaft to which power is directed or, alternatively, to which power is supplied depending on the use to which the device is put. For example, the device may be a fluid pump, a fluid motor, a diesel engine, a two cycle engine, a four cycle engine, or the like. In a preferred embodiment, two pistons and two cylinders form a part of a first rotor and two other pistons and two other cylinders form a part of a second rotor. Each piston forming a part of one rotor is mounted for reciprocal movement within a cylinder of the other rotor.
Claims18
A reciprocating piston device comprising:
- a. a shaft;
- b. a plurality of rotor members mounted on said shaft for successive alternate rotational movements around said shaft;
- c. a pair of oppositely disposed cylinders as a part of each said rotor;
- d. a pair of oppositely disposed pistons as a part of each said rotor, each piston of one rotor being positioned for reciprocal movement within a cylinder of another rotor to form a circular arrangement of piston-cylinder assemblies;
- e. inlet valve means for the introduction of fluid into each said cylinder;
- f. outlet valve means for the removal of fluid from each said cylinder;
- g. means for imparting said alternate movements to said rotors;
- h. means for preventing rotation of a rotor in an angular direction opposite to that of the rotation of another rotor;
- and
- i. conduit means extending from each said assembly and establishing respectively fluid connection with said valve inlet means of the cylinder oppositely disposed to said assembly and with said outlet means of the cylinder following said assembly in said circular arrangement to effect the opening of both said valve means in response to an increase in fluid pressure in the cylinder of said assembly.
7 more elements
A four cycle internal combustion engine comprising:
- a. a shaft;
- b. a plurality of rotor members mounted for successive alternate rotational movements around said shaft;
- c. a pair of oppositely disposed cylinders as a part of each said rotor;
- d. a pair of oppositely disposed pistons as a part of each said rotor, each piston of one rotor being positioned for reciprocal movement within a cylinder of another rotor to form a circular arrangement of piston-cylinder assemblies;
- e. inlet valve means for the introduction of a combustion mixture into each said cylinder;
- f. outlet valve means for the removal of exhaust gases from each said cylinder;
- g. means for transmitting torque from a rotating rotor to said shaft to effect angular rotation of said shaft;
- h. means for preventing rotation of a rotor in an angular direction opposite to that of the rotation of said shaft;
- and
- i. conduit means extending from each said assembly and establishing respectively fluid connection with said valve inlet means to the cylinder oppositely disposed to said assembly and with said outlet means of the cylinder following said assembly in said circular arrangement to effect the opening of both said valves in response to an increase in gas pressure in the cylinder of said assembly.
7 more elements
A four cycle internal combustion engine comprising:
- a. a shaft;
- b. a plurality of rotor members mounted for successive alternate rotational movements around said shaft;
- c. a pair of oppositely disposed cylinders as a part of each said rotor;
- d. a pair of oppositely disposed pistons as a part of each said rotor, each piston of one rotor being positioned for reciprocal movement within a cylinder of another rotor to form a circular arrangement of piston-cylinder assemblies;
- e. valve means for the introduction of a combustion mixture into each said cylinder;
- f. means for transmitting torque from a rotating rotor to said shaft to effect angular rotation of said shaft;
- g. means for preventing rotation of a rotor in an angular direction opposite to that of the rotation of said shaft;
- h. a valve seat in each piston which respectively defines an opening between the interior of each said latter piston and the gas chamber of its associated cylinder;
- i. a normally closed valve member which cooperates with said valve seat to control the flow of exhaust gas from said chamber;
- and
- j. a conduit joining said latter piston interior with the cylinder positioned ahead of said piston-cylinder assembly in said arrangement;
- and
- k. wherein said valve is opened in response to an increase in gas pressure in said cylinder positioned ahead, said pressure being transmitted via said conduit.
10 more elements
Dependencies are inferred from the claim text.