US 12,168,954 B1Granted

Rotary combustion engine

AssigneeUSA as rep by the Secretary of the Navy

InventorsWilliam Gregory Buchanan, Vincent J. Vendetti

Life of this patent

Estimating the term…

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Abstract

A rotary engine is provided to produce torque. The engine includes a planar housing, an elongated rotor, a pair of double-concave blades, fore and aft cover plates, and a gear box. The housing has a circular center cavity, and a pair of circular lateral cavities overlapping the center cavity and disposed along a longitudinal axis. The rotor is disposed on a rotor shaft along a rotation axis perpendicular to the longitudinal axis within the center cavity. The blades flank the rotor and are disposed within their corresponding lateral cavity and turn on corresponding blade shafts parallel to the rotor shaft. The blades flank the rotor disposed within their corresponding lateral cavity and turn on corresponding blade shafts parallel to the rotor shaft. The fore and aft cover plates flank the housing along the rotation axis to cover the center and lateral cavities. The gear box is disposed on the aft cover plate and has a rotor gear wheel with adjacent corresponding blade gear wheels. The rotor gear wheel turns with the rotor shaft while engaging both blade gear wheels along their peripheries. The blade gear wheels turn with the corresponding blade shafts. The blades turn opposite to the rotor.

Claims3

Dependent claims

A bilateral rotary combustion engine for providing torque, said engine comprising:

a planar housing having a circular center cavity, and first and second circular lateral cavities overlapping said center cavity and disposed along a longitudinal axis;
a truncated ellipsoid rotor that turns on a rotor shaft along a rotation axis perpendicular to said longitudinal axis, said rotor being disposed within said center cavity;
a pair of double-concave blades that flank said rotor disposed within their corresponding lateral cavity and turn on corresponding blade shafts parallel to said rotor shaft;
fore and aft cover plates that flank said housing along said rotation axis to cover said center and lateral cavities;
and
a gear box disposed on said aft cover plate and having a rotor gear wheel and adjacent corresponding blade gear wheels, said rotor gear wheel turning with said rotor shaft while engaging both blade gear wheels along their peripheries, said blade gear wheels turning with said corresponding blade shafts, wherein said blades turn opposite to said rotor, and
a first portion of said first lateral cavity periodically joining a second portion of said center cavity to provide first intake, first compression, first power and first exhaust strokes, while a third portion of said second lateral cavity periodically joining a fourth portion of said center cavity to provide second power, second exhaust, second intake and second compression strokes as said rotor and said blades turn.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/831,023Filed 26 Mar 2020 · continuation in part
Priority: 3 Apr 2019
Granted: 17 Dec 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

F02B 53/12
Internal-combustion aspects of rotary-piston or oscillating-piston engines: ignition
F01C 1/22
Rotary-piston machines or engines: of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or…
F01L 1/18
Transmitting gear between valve drive and valve: rocking arms or levers
F02B 53/00
Internal-combustion aspects of rotary-piston or oscillating-piston engines

Family

Application62/828,595Us provisional application · filed 3 Apr 2019
Application62/853,223Us provisional application · filed 28 May 2019
Application62/913,364Us provisional application · filed 10 Oct 2019
Application16/668,530Parent of this continuation-in-part · filed 30 Oct 2019
US 11,143,098 B1Parent of this continuation-in-part
US 12,168,954 B1This patent

From the US filing history. Foreign family members aren’t listed.