Matches 1 - 37 out of 37
Match Document Document Title
7581526 Device and method to increase fuel burn efficiency in internal combustion engines  
A reciprocating piston engine wherein the movement of a piston within the combustion chamber creates vortices in the fluid within the chamber and wherein the orientation of the vortices is more...
7395806 Reciprocating internal-combustion engine with direct fuel injection by means of an injector arranged on the intake side  
A reciprocating internal-combustion engine having at least two gas intake ports ( 3 ) with gas intake valves ( 6 ), at least one gas exhaust port ( 4 ) with a gas exhaust valve ( 7 ) and at least...
7318406 Bowl-in-piston of a cylinder in a direct injection engine  
A piston in a direct injection spark ignition internal combustion engine is configured to reciprocate upward and downward within a combustion chamber along a reciprocating axis. The piston...
7066115 Internal combustion engine/hydraulic motor/fluid pump provided with opposite pistons  
An internal combustion engine has a pair of opposed pistons held within an elliptical guide of the engine housing. The pistons reciprocate within a cylinder attached to a shaft. A combustion...
7055490 In-cylinder injection, spark ignited internal combustion engine  
An in-cylinder injection, spark ignited internal combustion engine including a fuel injection valve spraying fuel substantially in a sector having a relatively small thickness and spreading...
6997158 Diesel combustion chamber  
A combustion chamber assembly for use in a diesel engine includes a combustion chamber being defined intersecting a crown of a piston, the combustion chamber being defined by a first curved surface...
6745745 Combustion chamber for reverse tumble spark ignition direct injection engine  
Superior piston bowl and combustion chamber configurations are designed for a reverse tumble spark ignition direct injection engine. The piston includes a shallow bowl extending from adjacent an...
6615789 Piston for internal combustion engines  
A piston for an internal combustion engine, including a piston crown having a central axis, and a piston bowl disposed in the piston crown, on which two tumble flows of air are provided. The piston...
6513487 Method for operating a reciprocating-piston internal combustion engine  
A method for operating a reciprocating-piston internal combustion engine, having an injector nozzle operable by a single valve element and configured to directly inject a fuel into a combustion...
RE37714 Combustion chamber structure for an internal combustion engine  
To accelerate a combustion with an entire combustion chamber including the vicinity of an opening portion for air suction to thereby make uniform a flame propagation in a combustion chamber...
6047592 Four-stroke internal combustion engine with spark ignition  
In order to optimize combustion in a four-stroke spark-ignition engine with direct fuel injection, the conditions of charge flow are improved by providing the top surface of each piston with two...
RE36500 Internal combustion engine  
A vertical vortex, namely, a reverse tumble flow is formed inside a cylinder of an internal combustion engine to form an intake air flow for smooth intake and exhaust in the internal combustion...
5927244 Combustion chamber structure having piston cavity  
An internal combustion engine having a cylinder head body with a pentroof-shaped combustion chamber comprises a piston including a piston cavity and a caldera-shaped protrusion provided around the...
5873344 Direct fuel injection ignition engine  
A direct injection ignition engine includes a piston with a cavity on a top surface thereof, an injector arranged at a peripheral portion of a combustion chamber to be faced to the combustion...
5622150 Method for introducing fuel into a combustion chamber of an internal combustion engine  
In a method for introducing fuel into the combustion chamber of an internal combustion engine wherein compressed gas is drawn from the combustion chamber during the compression phase of a working...
5517961 Engine with flow coupled spark discharge  
An improved spark ignition engine system producing a large continuous, centrally directed, flow coupled ignition spark discharge through combustion chamber (1), piston (4), inlet system (28/29),...
4964379 Twin-piston two-stroke engine  
Two pistons in adjacently situated cylinders in a twin-piston two-stroke engine share a common combustion chamber. To ensure low exhaust gas emissions with low consumption, a lean mixture is burnt...
4872433 Combustion chamber configurations for two cycle engines  
Improved combustion chamber configurations for two-cycle engines with high pressure fuel injected systems having reciprocal pistons, cylinders with multiple injectors for each cylinder and a...
4712526 Piston with turbine fan for use in internal combustion engines  
A new piston design is disclosed for use in internal combustion engines. The invention consists of a piston that has a turbine insert installed inside an internal cavity. The turbine insert has a...
4622929 Deflector piston two-stroke engine  
A deflector piston two stroke internal combustion engine has a piston (10) reciprocable in a cylinder and sealed thereto by means of piston rings (P2), the cylinder having communicating with it a...
4617888 Pistons for internal combustion engines  
A piston for use in the cylinders of internal combustion engines of either spark ignition or compression ignition type. A succession of interrupted ribs, aligned along arcs of increasing radius,...
4567863 Apparatus for reducing damage associated with detonation and/or destructive knock  
A piston for attenuation of detonation in a combustion chamber in an internal combustion engine has a top wall accommodating a cap. The cap has an upwardly and inwardly inclined first section, a...
4541377 Piston dome  
An improved dome-shaped piston head is disclosed characterized by a plurality of channels, depressions, and recesses which enhance the flow of an air-fuel mixture around the piston head in a...
4508073 Combustion space of a piston driven internal combustion engine  
A reciprocating lens-like combustion space is formed in a piston internal combustion engine which is located with approximately one-half in a recess of the piston top and with approximately the...
4487179 Internal combustion engine  
The internal combustion engine includes a cylinder block and a cylinder head forming a plurality of cylinders with a piston in each cylinder, a camshaft to open and close intake and exhaust ports,...
4483289 Synthesis procedure and combustion chamber with variable turbulence  
The combustion structure of an internal combustion engine comprises a cavity formed in the end wall of the piston and a projection on said piston adjacent its cavity to that the projection in the...
4471734 Anti-roll-up vortex piston  
Modifications of piston top geometry eliminate the formation of the coherent roll-up vortex characteristic of most engines and dissipatively mix absorbed HC from the cylinder wall with hot gases in...
4467752 Internal combustion engine  
An internal combustion engine having a cylinder 16, a cylinder head 10, and a piston 12 slidably mounted within the cylinder for reciprocating movement towards and away from the cylinder head,...
4378764 Piston and combustion chamber with improved fuel circulation  
An internal combustion engine, which has a combustion chamber with a coordinated piston where the combustion chamber is divided into a first and second section, and where the piston has an...
4359027 Two-cycle internal combustion engine having high swirl combustion chamber  
Disclosed is a two-cycle, internal combustion engine including an engine block, and a cylinder in the engine block having a head and generally opposed inlet and outlet walls respectively including...
4357915 Propeller and piston combination for internal combustion engines  
This piston design serves to increase engine horsepower, and causes less friction, while simultaneously reducing fuel consumption. It consists primarily of a propeller-topped piston, secured, by...
4300499 Combustion chamber of an internal combustion engine  
An internal combustion engine comprising a first raised portion formed on the inner wall of the cylinder head, a second raised portion formed on the top face of the piston at a position opposite to...
4162661 Internal combustion engine with combustion chambers which create a squish and swirl of an air-fuel mixture  
An internal combustion engine with combustion chambers which create a squish and swirl of an air-fuel mixture is disclosed. In the disclosed engine an inner wall of a cylinder head and a top end of...
4095578 Induction conduits of internal combustion engines  
An induction conduit in an internal combustion engine cylinder head is formed with an appendage of rectangular section extending parallel to the axis of a valve stem at the end of the conduit...
4063537 Combustion chambers, for diesel engines  
A combustion chamber for a diesel engine has a secondary chamber, communicating with a precombustion chamber, the secondary chamber consisting of a central channel extending diametrically in the...
3658046 MIXTURE COMPRESSING INTERNAL COMBUSTION ENGINE WITH SWIRL INFLOW AND EXTERNAL IGNITION  
A mixture-compressing internal combustion engine which operates with a mixture swirl and externally applied ignition of the mixture, particularly such an internal combustion engine as is controlled...
3334618 Four stroke high r.p.m. internal combustion engine for racing purposes  
Matches 1 - 37 out of 37