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8127544 Two-stroke HCCI compound free-piston/gas-turbine engine  
This invention provides a compact, fuel-efficient internal combustion engine that can be used to provide rotating shaft output power to a wide variety of mobile and stationary applications. It is...
7614369 Reciprocating cylinder engine  
An engine is disclosed having cylinders slidably disposed in an engine block. The cylinders reciprocate, engaging movable pistons at each end. A piston and cylinder end define a combustion chamber....
7455038 Rotary mechanical field assembly  
An engine is provided comprising a cylinder, a piston, a connecting rod, and a crank. A cylinder combustion occurs in the cylinder to induce movement of the piston in a lateral direction. The...
7334558 Slide 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...
7219631 High torque, low velocity, internal combustion engine  
An Internal Combustion Engine including a plurality of reciprocating pistons disposed about the periphery of a central housing, and a pair of drive cams responsive to the displacement of the...
6766781 Crankcase for an internal combustion engine, especially for a boxer engine  
The invention relates to a crankcase for an internal-combustion engine, particularly for a horizontally opposed engine, having two crankcase halves (10, 12) in which bearing sections (18) with...
6332435 Crank journal support portion structure of a horizontal opposed type engine  
The invention minimizes the problem of deterioration in engine strength by concentration of stress due to the combustion load in a hole portion provided on a crank journal support wall in a crank...
6209495 Compound two stroke engine  
A two stroke compound engine has a pair of horizontally opposed piston cylinder assemblies extending along a common axis therein. Each piston cylinder assembly includes a piston, a combustion...
5988121 Piston engine having a hypocycloidal piston stroke transmission with a Watt's guide, particularly with pistons in opposed cylinders  
For a piston engine having a hypocycloidal piston stroke transmission with a Watt's guide, particularly having pistons in opposed cylinders, in which case the transmission is rotatably arranged on...
5934229 Double circular slider crank reciprocating piston internal combustion engine  
The invention relates to a internal-combustion engine, particularly to a reciprocating piston type internal combustion engine having a crank circular slide block which replaces the connecting rod....
5884590 Two-stroke engine  
An oscillating lever arm engine includes rigidly connected opposing pistons moved by a single lever connected to a rotating crankshaft. When applied to a two-cycle internal combustion engine, one...
5862781 Two-stroke internal combustion engine  
In a two-stroke internal combustion engine with a crank slide mechanism and a plurality of working cylinders which, have bases and are divided by a piston into a lower and an upper cylinder...
5826550 Internal combustion engine  
In an internal combustion engine comprising an engine block housing at least two reciprocating pistons being each provided in a cylinder comprising at least an inlet valve and an exhaust valve,...
5572904 Oscillation lever arm engine  
An engine for generating rotational torque through the oscillating movement of lever arms. The inventive device includes an elongated cylinder having first and second opposed cylinder heads. A pair...
5560327 Internal combustion engine with improved cycle dynamics  
A reciprocating piston internal combustion engine has a conjugate drive motion translator. The engine is horizontally opposed with each shuttle having a pair of pistons attached at the ends of a...
5528946 Apparatus for conversion of reciprocating motion to rotary motion and vise versa  
A motion conversion system by which near 100% of a reciprocating motion, and a rotary motion, fluently converted from one to the other includes, a drive shaft (20), an intermediate circular element...
5517953 Stepped piston axial engine  
A highly pressurized internal combustion engine, wherein arrangements to balance the intake flow of air that passes from the turbochargers to a windchest, through spring valves to compressor...
5503038 Free floating multiple eccentric device  
An apparatus for directly converting rotary motion to alternating linear motion comprising a cylindrical shaft and a first eccentric mounted on said shaft, a multiple eccentric comprised of a...
5494135 Lubrication system for a conjugate drive mechanism  
A conjugate drive mechanism of a motion converter includes a conjugate driver, which is rotatably mounted on a crankpin, and a bearing conjugate, which is mounted on a linearly movable shuttle. The...
5441018 Internal combustion rotary piston engine  
A two stroke engine (2) comprises a housing (4), a cylinder (6), a shaft (10) rotatably supported in the housing (4) for rotation about the cylinder axis (14), a piston (8) slidably mounted on the...
5331926 Dwelling scotch yoke engine  
An improved engine utilizing a dwelling scotch yoke and a journalled flywheel in a unique combination for stalling the translatory movement of oppositely paired pistons during the detonation of the...
5331925 Internal combustion engine  
An internal combustion engine has a plurality of cylinders and two pistons located in each of the cylinders and forming two combustion chambers with the latter.
5228416 Internal combustion engine having opposed pistons  
An internal combustion engine utilizing a disk-shaped crankshaft operatively connected with respect to at least one pair of opposed pistons. Each piston of each pair is fixedly secured with respect...
5211065 Apparatus for translating rotational motion to harmonic linear motion  
An improved connecting rod assembly for a reciprocating internal combustion engine provides essentially simple harmonic linear motion of a piston, thereby eliminating forces and moments caused by...
5123334 Pump or motor with secondary piston connected to guide member of a main piston  
Pump or motor comprising at least one cylinder housing being closed at both ends and a piston body received in said housing so that at both ends of said housing a working compartment is formed, the...
4977864 Diesel engine  
An engine is disclosed that is applicable for automotive and truck use but is also adaptive for other power producing uses. Two reciprocating cylinders are housed within an outer cylinder. A piston...
4972809 Power unit of inboard/outboard  
An improved propulsion unit for a watercraft embodying a reciprocating internal combustion engine having horizontally disposed cylinders so as to provide a compact assembly. The engine operates on...
4932373 Motion converting mechanism  
To reduce space requirements, vibrations and certain stresses in a motion converting mechanism, a rod is constrained to reciprocate within a housing where the rod is attached to the crankshaft by a...
4907548 Pinion gear assembly for translating reciprocating movements of the pistons in the cylinders of an internal combustion engine into the rotating movement of a shaft  
A pinion gear assembly for translating the back and forth movement of the pistons in the cylinders of an internal combustion engine into the rotating movement of a shaft is described. Two pistons...
4825820 Power system for piston engines & compression devices  
This device is an improvement over the typical power systems of two and four cycle engines, compressors, and external combustion engines. The device replaces the conventional crankshaft and...
4682569 Oscillatory motion apparatus  
Oscillatory motion apparatus has a first reciprocating rod oriented generally perpendicularly with respect to a second reciprocating rod. A first trammel gear is pivotally secured to the first and...
4627389 Two-stroke internal combustion engine  
A two-stroke internal combustion engine is disclosed in which transfer of inlet air occurs from the aspiration chamber into the combustion chamber via channels running within the piston. The outer...
4607598 Suction device for two-cylinder internal combustion engine  
A suction device suitable for use with a two-cylinder internal combustion engine including a second suction port formed at a wall of at least one of the pair of cylinders in a position in which it...
4512291 Internal combustion engine  
The radial internal combustion engine has two pairs of opposed cylinders arranged on axes at 90 degrees to one another. Each pair of cylinders has opposed pistons, interconnected by a piston rod...
4512290 Crank guide assembly for internal combustion engines, in particular two-stroke internal combustion engines with facing cylinders  
In a two-stroke internal combustion engine with facing cylinders, piston rods extend from the cylinders into a central crank guide located within a crankcase. A crankpin is located within the...
4485768 Scotch yoke engine with variable stroke and compression ratio  
A yoke type engine wherein the orbital path of the slider is alterable to effect piston stroke and compression ratio changes. A crank component has a crankpin which carries and positions the...
4407240 Opposed piston internal combustion engine with special scavenging means  
A reciprocating piston machine comprising a main piston secured to a piston rod, a cylinder in which the main piston can slide, the main piston and cylinder defining a combustion chamber, a...
4373474 Scavenging arrangement for a two-stroke internal combustion piston engine  
In a two-stroke internal combustion piston engine, a piston is reciprocally movable within an axially elongated cylinder. The piston has a bottom dead center position and in the region of this...
4331111 Low vibration engine  
A two cylinder twin crankshaft two cycle engine having materially reduced vibration is disclosed, together with a dynamical analysis of the balance criteria from which minimized vibration is...
4178885 Rotary piston/cylinder engines  
A rotary piston/cylinder engine comprises a rotor assembly which is mounted to rotate about an axis of rotation and comprises a double-headed piston member and a double-headed cylinder member...
4140440 Internal combustion piston engine-driven piston pump with hydraulic pressure return of combustion piston from BDC  
This invention relates to internal combustion engines, the energy output of which is produced as hydraulic pressure, and in one embodiment comprises two, two-cycle internal combustion engines which...
4129103 Module unit  
Universal cast cylinder block module for forming Single and Multi-Cylinder Internal Combustion Engine.
4128083 Gas cushioned free piston type engine  
A gas cushioned free piston type engine comprises two oppositely arranged combustion cylinders and a pair of pistons reciprocably mounted therein, which are rigidly connected to each other by a...
4078439 Alternative reciprocating compressor  
An alternative reciprocating compressor having a driving shaft that is solidly fastened to a circular eccentric which externally, and by means of a ball or roller bearing is enclosed by another...
4026252 Engine construction  
A two-cycle engine wherein a pair of pistons are mounted within a pair of cylinders which are arranged in an oppositely facing in-line manner with the connecting rods of both pistons being also...
4013048 Bourke type engine  
In a Bourke type engine wherein at least two cylinders are disposed coaxially and oppositely so that the free ends of piston rods extending from pistons reciprocable in said cylinders may be...
3946706 Rotary machines comprising four cylinders in a star  
An explosion engine comprises: a rotary shaft with axis A; four cylinders 6, 7, 8, 9 in a star aligned in pairs on two axes B and C perpendicular to the axis A and to each other, but not coplanar;...
3895620 Engine and gas generator  
A synchronizing device in a two-cycle piston-cylinder combination which acts as an engine to provide shaft power or, alternatively, as a gas generator to provide turbine power.
3648671 MODIFIED INTERNAL COMBUSTION ENGINE  
Modification of a twin opposed cylinder two-stroke internal combustion engine according to U.S. Pat. No. 3,329,134 issued in 1967 to the present inventor, which engine has a power piston...
3630178 ENGINE HAVING MIGRATING COMBUSTION CHAMBER  
An internal combustion engine having no connecting rod and comprising a stationary power block housing, a combustion chamber member, a working piston, and a crankshaft is disclosed wherein the...
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