LandOfFree - US Patents - Listing for Internal-combustion engines

Internal-combustion engines – Poppet valve operating mechanism – Rocker

Valve-operating mechanism for internal combustion engine

Internal-combustion engines – Poppet valve operating mechanism – Camshaft drive means

Valve-operating mechanism in 4-cycle engine

Internal-combustion engines – Poppet valve operating mechanism – Spring

Valve-operating mechanism in engine

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Valve-operating system for internal combustion engine

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Valve-operation control system for internal combustion engine

Internal-combustion engines – Valve – Valve head cooperates with manifold

Valve-seat insert for internal combustion engines

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Valve-stroke controls

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Valve-timing control apparatus of internal combustion engine

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Valve-timing control method and apparatus for controlling...

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Valve-timing controller for an internal combustion engine

Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means

Valved apparatus for diverting an exhaust stream

Internal-combustion engines – Valved piston – Charge passes from crankcase through valve in piston

Valved piston with rocker arm journaled to piston

Internal-combustion engines – Starting device – For airplane

Valved prechamber diesel engine and method of operating

Internal-combustion engines – Precombustion and main combustion chambers in series – Having timed valves to precombustion and main combustion...

Valved prechamber diesel engine and methods of operating

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Valvegear for engines of reciprocating piston type

Internal-combustion engines – Rotary – With compression – combustion – and expansion in a single...

Valveless revolving cylinder engine

Internal-combustion engines – Rotary – With compression – combustion – and expansion in a single...

Valveless rotary internal combustion engine

Internal-combustion engines – Rotating cylinder – Radial

Valveless rotating cylinder internal combustion engine

Internal-combustion engines – Rotating cylinder – Radial

Valveless rotating cylinder internal combustion engine