137423 ⎘
Use of working pistons or pistons-rods as fluid-distributing valves or as valve-supporting elements, e.g. in free-piston machines Piston or piston-rod used as valve members
High efficiency steam engine and impact-free piston operated valves therefor
#2Systems and methods of compression ignition engines
#3Overspeed protection system and method
#4Free piston engine
#5Internal combustion engines
#6Free-piston engine
#7Double-reed exhaust valve engine
#8Intake system for a two-stroke internal combustion engine
#9Continuous reciprocating linear motion device
#10Valve and auxiliary exhaust system for high efficiency steam engines and compressed gas motors
#11Uniformly pressurized thermal energy recovery systems