LandOfFree - US Patents - Listing for Internal-combustion engines,Four-cycle

Internal-combustion engines – Four-cycle – Rotating valve

Cartridge-type rotary valve

Internal-combustion engines – Four-cycle – Single poppet valve

Coaxial poppet valve

Internal-combustion engines – Four-cycle – Single poppet valve

Combined sleeve/poppet valve for internal combustion engine

Internal-combustion engines – Four-cycle – Single poppet valve

Combustion chamber for an internal combustion engine

Internal-combustion engines – Four-cycle – Having subcharger associated with the cylinder

Combustion chamber of an internal combustion engine with an accu

Internal-combustion engines – Four-cycle – Rotating valve

Combustion engine valve system

Internal-combustion engines – Four-cycle – Rotating valve

Combustion engine valve system

Internal-combustion engines – Four-cycle – Variable clearance

Combustion engine with variable compression ratio

Internal-combustion engines – Four-cycle – Crankcase compression of air or combustible mixture to be...

Compact pressure-boosted internal combustion engine

Internal-combustion engines – Four-cycle – Variable clearance

Compression compensator

Internal-combustion engines – Four-cycle – Having subcharger associated with the cylinder

Compression control system for an internal combustion engine and

Internal-combustion engines – Four-cycle – Variable clearance

Compression ratio changing device using an eccentric bearing for

Internal-combustion engines – Four-cycle – Variable clearance

Compression ratio control in reciprocating piston engines

Internal-combustion engines – Four-cycle – Variable clearance

Compression ratio controlling apparatus and method for...

Internal-combustion engines – Four-cycle – Variable clearance

Compression ratio setting device for an internal-combustion...

Internal-combustion engines – Four-cycle – Crankcase compression of air or combustible mixture to be...

Compressor system for reciprocating machine

Internal-combustion engines – Four-cycle – Single poppet valve

Concentric intake and exhaust valve assembly

Internal-combustion engines – Four-cycle – Single poppet valve

Concentric valve structure

Internal-combustion engines – Four-cycle – Multiple exhaust

Control apparatus and method for four-stroke premixed...