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Class 123/53.4 - Two-stroke cycle


Subclass of Class 123 - Internal-combustion engines
Definition: Multiple cylinder engine wherein the pistons in the working
No. of patents: 10
Last issue date: 02/26/2008


NumberTitleIssue Date
7334558Slide body internal combustion engine
An internal combustion engine includes a slide body having a plurality of rigidly mounted pistons on opposite ends of the slide body. The slide body reciprocates and is connected to a flywheel by shaft and bearing which extends through an angled track in the slide b...
02/26/2008
7201133Internal combustion engine having dual piston cylinders and linear drive arrangement
A device for transforming an alternating motion of a piston into a circular motion of a shaft is provided. The device includes an assembly of two pistons connected by two racks alternatively in mesh with a toothed cam set on a shaft. Movement in one direction of the...
04/10/2007
6904888Reciprocating piston device
A reciprocating piston engine (or motor) includes plural reciprocating pistons operatively connected to a single intermediate oscillating shaft, and a crankshaft having a single crank pin operatively connected to the oscillating shaft, so that the crankshaft experie...
06/14/2005
6223612Flywheel motor transmission
Motion of an apparatus having reciprocal linear motion of an input member is converted into alternating rotary motion of a drive member such as a drive shaft or a drive gear. Additionally, a system is taught which uses linear motion, oscillating motion an...
05/01/2001
5025759Lever-type two-cycle internal combustion engine
An internal combustion engine having paired opposed power cylinders, and a lever system interconnecting the pistons of the opposed power cylinders with each other and with a crankshaft. The lever system for each pair of cylinders includes the piston rods ...
06/25/1991
4708099Crankless reciprocating internal combustion engine
Present reciprocating engines have limitations on their thermal efficiency and horsepower to weight performance imposed by the crankshaft. Elimination of the crankshaft, use of a full time turbocharger and ceramic lining of cylinder walls, cylinder and pi...
11/24/1987
4658768Engine
To reduce space requirements, vibrations and certain stresses in an engine, a different one of two pistons is mounted on each end of a single piston rod to which the crankshaft is attached by a cylindrical shaped connector that orbits around the crankpin ...
04/21/1987
4543919Engine
To reduce space requirements, vibrations and certain stresses in an engine, a different one of two pistons is mounted on each end of a single piston rod to which the crankshaft is attached by a cylindrical shaped connector that orbits around the crankpin ...
10/01/1985
4381739Cam internal combustion engine
In an internal combustion engine, a combination of cylinders, pistons, rods, beams, gears and cams that are used for converting the reciprocating motion of the pistons into rotary motion of the drive shaft. One embodiment includes a block member that is f...
05/03/1983
3999523Internal combustion engine
An opposed piston engine includes pistons mounted at opposite ends of a piston rod which is pivotally coupled to one end of a rocker arm coupling the piston rod to a connecting rod in turn coupled to an eccentric drive mechanism. The rocker arm is pivotal...
12/28/1976
 
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