Inventor
BERLINGER WILLIBALD G
US14 patents
Patents
14 patentsUS6541875B1Apr 1, 2003
Free piston engine with electrical power output
CATERPILLAR INC127 citations97
US6314924B1Nov 13, 2001
Method of operating a free piston internal combustion engine with a short bore/stroke ratio
CATERPILLAR INC41 citations92
US6205961B1Mar 27, 2001
Free piston internal combustion engine with piston head functioning as a bearing
CATERPILLAR INC35 citations92
US6105541AAug 22, 2000
Free piston internal combustion engine with rotating piston
CATERPILLAR INC21 citations92
US5307732AMay 3, 1994
Piston assembly having a wrist pin bolted therein
CATERPILLAR INC24 citations92
US5289758AMar 1, 1994
Pin plugs for use in a piston assembly
CATERPILLAR INC39 citations92
US6244226B1Jun 12, 2001
Free piston internal combustion engine with rotating piston
CATERPILLAR INC30 citations91
US5934245AAug 10, 1999
Two cycle engine having a mono-valve integrated with a fuel injector
CATERPILLAR INC28 citations91
US6070408AJun 6, 2000
Hydraulic apparatus with improved accumulator for reduced pressure pulsation and method of operating the same
CATERPILLAR INC16 citations84
US6152091ANov 28, 2000
Method of operating a free piston internal combustion engine with a variable pressure hydraulic fluid output
CATERPILLAR INC11 citations73
US5267534ADec 7, 1993
Piston cooling nozzle
CATERPILLAR INC16 citations73
US6076506AJun 20, 2000
Piston for use in an engine
CATERPILLAR INC11 citations67
US6463903B1Oct 15, 2002
Piston assembly for free piston internal combustion engine
CATERPILLAR INC6 citations57
US6694930B2Feb 24, 2004
Piston assembly for use in a free piston internal combustion engine
CATERPILLAR INC2 citations56