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Class 123/60.1 - Locked annular piston


Subclass of Class 123 - Internal-combustion engines
Definition: Multiple cylinder engine including a first piston of circular
No. of patents: 16
Last issue date: 12/19/2006


NumberTitleIssue Date
7150259Internal combustion engine
A power transfer assembly (2000) for transferring energy within a combustion engine (1010) externally of the engine. The power transfer assembly includes a crankshaft (2006) adapted to convert reciprocating motion to rotating motion. The power t...
12/19/2006
4887558Internal-combustion engine having opposed integral annular pistons and a central shaft
The invention relates to an internal-combustion engine having opposed integral annular pistons and a central shaft. The piston block (1), formed by the two pistons (2, 3) exhibits, at each axial end, an axial double skirt fitted with an outer crown (9) fo...
12/19/1989
4741296Multiple piston expansion chamber engine
A method of extracting work from two chambers including a working chamber surrounded by a reciprocating sleeve and an auxiliary chamber surrounding the sleeve....
05/03/1988
4715328Multiple piston expansion chamber engine
Multiple expansion chambers are configured to partially expand the combusted charge in the combustion chamber and then to complete the expansion process using a supplemental expansion chamber with chamber isolation designs....
12/29/1987
4580532Multiple piston expansion chamber engine
Multiple expansion chambers are configured to partially expand the combusted charge in the combustion chamber and then to complete the expansion process using a supplemental expansion chamber with chamber isolation designs....
04/08/1986
4570580Multiple piston expansion chamber engine
Multiple expansion chambers are configured to partially expand the combusted charge in the combustion chamber and then to complete the expansion process using a supplemental expansion chamber with chamber isolation designs....
02/18/1986
4489681Multiple piston expansion chamber engine
A multiple piston expansion chamber internal combustion engine wherein the charge is ignited and combusted (or partially combusted) and partially expanded by one or more of the pistons and after partial expansion thereof additional pistons augment the exp...
12/25/1984
4453504Single piston, double chambered reciprocal internal combustion engine
An engine with a cylinder assembly defining a cylinder chamber therein in which is reciprocally mounted a piston on a support tube slidably projecting on opposing ends of the cylinder chamber. A drive shaft is rotatably mounted through the support tube an...
06/12/1984
4434752Internal combustion engine
An engine is shown as having a ring-like cylinder with a ring type piston reciprocatingly received therein, connecting rods operatively interconnect the ring piston to a related crankshaft; the combustion chamber means is formed generally by two chamber v...
03/06/1984
4359016Internal combustion engine
An internal combustion engine is shown as including an annular or ring type cylinder and reciprocating piston therein, exhaust ports from the cylinder lead to an afterburner section situated generally medially of the annular cylinder; the exhaust gases fr...
11/16/1982
4294201Internal combustion engines
A two-stoke cycle combustion-engine with crank-chamber compression is described, free of charging transfer passages external to the cylinder, with pumping-displacement exceeding working-displacement for responsive intake and thorough scavenging of spent-g...
10/13/1981
4285304Internal combustion engine
An internal combustion engine is shown as including an annular or ring type cylinder and reciprocating piston therein; exhaust ports from the cylinder lead to an afterburner section situated generally medially of the annular cylinder; the exhaust gases fr...
08/25/1981
4096835Internal combustion engine method and apparatus
A piston cylinder assembly is disclosed which may be used in new internal combustion engines of various types and which may be used to retrofit existing types of internal combustion engines so as to provide a high thermodynamic cycle efficiency and to sub...
06/27/1978
4043301Internal combustion engine
An internal combustion engine is disclosed having opposed, axially aligned, annular reciprocating and rotatable pistons connected through radially disposed crankshafts to a drive shaft which extends coaxially of the opposed pistons. The crankshafts are so...
08/23/1977
4011725Annular piston engine with afterburner and power turbine
An internal combustion engine includes an annular or ring-type cylinder and piston therein; exhaust ports from the cylinder lead to an afterburner reactor situated generally medially of the annular cylinder; the exhaust gases are further burned within the...
03/15/1977
3969894Internal combustion engine
An internal combustion engine includes an annular or ring-type cylinder and piston therein; exhaust ports from the cylinder lead to an afterburner reactor situated generally medially of the annular cylinder; the exhaust gases are further burned within the...
07/20/1976
 
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