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Free Piston Pump

 

2010

 

Free-piston engine having variable stroke and method for operating a free-piston engine – Universal Motor Corp
http://www.google.com/patents/WO2010046120A1?cl=en

 

2008

 

Internal combustion engine – Advanced Propulsion Technologies
http://www.google.com/patents/US7383796

 

2007

 

Internal combustion engine – Advanced Propulsion Technologies
http://www.google.com/patents/US7207299

Internal combustion engine – Advanced Propulsion Technologies
https://www.google.com/patents/US7255070

Rapid response power conversion device – Sarcos Investments
http://www.google.com/patents/US7210430

Valve system for a rapid response power conversion device - Sarcos Investments
http://www.google.com/patents/US7066116

Four-cylinder, four-cycle, free piston, premixed charge compression ignition, internal combustion reciprocating
piston engine with a variable piston stroke
http://www.google.com/patents/US7258086

 

2006

 

Apparatus for determining free piston position and an apparatus for controlling free piston position – Global Cooling
http://www.google.com/patents/US7075292

 

2005

 

Compression pulse starting of a free piston internal combustion engine having multiple cylinders - Ford
http://www.google.com/patents/US6966280

Compression pulse starting of a free piston internal combustion engine - Ford
http://www.google.com/patents/US6971340

Electromagnetic servo valve strategy for controlling a free piston engine – Ford
http://www.google.com/patents/US6971339

 

2004

 

Energy converter – Clavis Technology
http://www.google.com/patents/US6759755

 

2002

 

NASA FREE PISTON ENGINE PUMP
http://sbir.gsfc.nasa.gov/SBIR/abstracts/02/sbir/phase1/SBIR-02-1-H3.02-9677.html

 

2001

 

Free piston internal combustion engine - Sunpower
http://www.google.com/patents/US6170442

 

2000

 

Method for operating of a free piston engine – Caterpillar Inc
http://www.google.com/patents/US6135069

Free piston internal combustion engine with rotating piston – Caterpillar Inc
http://www.google.com/patents/US6105541

Injector system for free-piston engines
http://www.google.com/patents/US6050244

Free-piston internal combustion engine - Sunpower
http://www.google.com/patents/US6035637

 

1998

 

Computerized internal supercharged engine-pump
http://www.google.com/patents/US5813371

Free-piston engine – Innas Free Piston
http://www.google.com/patents/US5829393

Free-piston internal combustion engine - Sunpower
http://www.google.com/patents/US5775273

 

1994

 

Free-piston engine control system – Tectonics
http://www.google.com/patents/US5287827

 

1992

 

Design of a Free-Piston Engine-Pump
http://papers.sae.org/921740/

 

1990

 

Free-piston engine without compressor – RDG Inventions
http://www.google.com/patents/US4924956

 

1989

 

Internal combustion engine
http://www.google.com/patents/US4831972

Internal combustion engine, particularly, a free-piston engine
http://www.google.com/patents/US4803960

 

1988

 

Free-piston motor with hydraulic or pneumatic energy transmission
http://www.google.com/patents/US4791786

 

1986

 

Oil pump with oscillating piston
http://www.google.com/patents/US4620836

 

1983

 

Free-piston engine pump
https://www.google.com/patents/US4369021

Opposed piston type free piston engine pump unit
http://www.google.com/patents/US4382748

 

1982

 

Hydraulic engine
http://www.google.com/patents/US4326380

Linear engine/hydraulic pump – Pneumo Corp.
http://www.google.com/patents/US4308720

Internal combustion engine or pumping device
http://www.google.com/patents/US4362477

 

1981

 

A Free Piston Engine-Pump for an Automotive Propulsion System
http://papers.sae.org/810266/

Free piston engine pump including variable energy rate and acceleration-deceleration controls – Pneumo Corp
ttp://www.google.com/patents/US4307999

 

1978

 

Free-piston engine-pump unit
http://www.google.com/patents/US4087205

Gas cushioned free piston type engine
http://www.google.com/patents/US4128083

Free piston engine with opposed cylinders
http://www.google.com/patents/US4085711

 

1973

 

The Braun Linear Engine
http://papers.sae.org/730185/

FREE PISTON ENGINE STARTING APPARATUS
http://www.google.com/patents/US3769950

 

1972

 

Free piston engine ignition apparatus
http://www.google.com/patents/US3643638

 

1971

 

BALANCED-FREE PISTON ENGINE
http://www.google.com/patents/US3610217