Four-cylinder, four-cycle, free piston, premixed charge...

Details Four-cylinder, four-cycle, free piston, premixed charge... Four-cylinder, four-cycle, free piston, premixed charge...

2007-08-21

2007-08-21

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Free piston

Single chamber; one piston

C123S053100, C123S090150, C060S517000

Reexamination Certificate

active

11358789

ABSTRACT:
A four-cycle, four-cylinder, premixed charge compression ignition internal combustion reciprocating free piston engine with a variable piston stroke and a compression ratio that varies as needed to provide charge ignition, to offer the potential of higher efficiency, lower emissions, and multi-fuel operation. The engine does not have a crankshaft, and therefore does not provide direct rotary output. Instead its free pistons oscillate, in a manner similar to a two cycle free piston engine. For many applications, such as piston pumps and compressors, the engine provides an output directly driven by the oscillating pistons. In other applications, such as but not limited to use as a gas generator for a power turbine, the engine provides an indirect means of producing rotary power. When the engine is used with high-speed power turbines, the power turbine may be directly coupled to a high-speed alternator for electrical power output.

REFERENCES:
patent: 6029616 (2000-02-01), Mayne et al.
patent: 6178939 (2001-01-01), Powell
patent: 6282895 (2001-09-01), Johansson et al.
patent: 6652247 (2003-11-01), Gray, Jr.
patent: 7021433 (2006-04-01), Yamada et al.
patent: 7077080 (2006-07-01), Schmuecker et al.
patent: 2003/0005695 (2003-01-01), Allen et al.
patent: 2003/0044293 (2003-03-01), Gray, Jr.
patent: 2003/0124003 (2003-07-01), Gray, Jr.
patent: 2004/0112048 (2004-06-01), Chien et al.
patent: 2006/0048728 (2006-03-01), Scalzo
patent: 2006/0196455 (2006-09-01), Jones et al.

Affiliated with

Also associated with

Rating

Four-cylinder, four-cycle, free piston, premixed charge... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Four-cylinder, four-cycle, free piston, premixed charge..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Four-cylinder, four-cycle, free piston, premixed charge... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3851715