Back to results
US 4,412,476 AGranted
Tandem machine with opposed free pistons
OwnerHenry Benaroyainventor
Life of this patent
Estimating the term…
Abstract
An opposed free piston tandem machine includes at least two drive piston-cylinder groups A and B and compressor cylinders and movable parts of this machine constitute two trains. The compressor cylinders of the outer movable train are arranged outside cross-pieces (23, 24) on which the drive pistons and outer compressors (3, 6, 15, 16, 17, 18) are fixed and which are joined together by linking rods (25, 26). The machine can include several drive units and several compressor units, and constitute an autogenerator of gas.
Claims10
A tandem free piston machine comprising:
- at least two groups of motor cylinders located parallel to a common axis, each said group including two aligned motor cylinders arranged on opposite sides of a transversal midplane of the machine and each cylinder reciprocably locating an outer drive piston and an inner drive piston arranged for movements in opposite directions,
- two pluralities of compressor pistons each reciprocably located in a compressor cylinder,
- first connecting means including a pair of outer cross members and mechanical cross member linking means, said first connecting means rigidly interconnecting said outer drive pistons and a first one of said pluralities of compressor pistons to constitute an outer reciprocating train,
- second connecting means including an inner cross member and rigidly interconnecting said inner drive pistons and a second one of said pluralities of compressor pistons to constitute an inner reciprocating train,
- wherein said compressor pistons of said outer train are located outside of said outer cross members in the axial direction while all said drive pistons, said linking means of said outer train and said inner cross-member are located between said outer cross members in the axial direction.
2 more elements
Dependencies are inferred from the claim text.