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Match Document Document Title
7311075 Split piston for an internal combustion engine  
The invention relates to a split piston for an internal combustion engine, comprising an upper piece, connected to a lower piece, by means of a screw connection. The screw connection comprises a...
7305960 Piston for an internal combustion engine  
The invention relates to a piston for an internal combustion engine, which comprises two boss bores that have respective outer areas with an oval cross-section that points on one side in the...
7302927 Two-part piston for an internal combustion engine  
Proposed is a two-part piston 1 for an internal combustion engine, having an upper part 2 that has a pin 31 having an outside thread 32 on the underside of its piston crown 4 , and having...
7299770 Evaporative in-cylinder cooling  
An engine is cooled using high pressure water injected into the piston with the water converted to high pressure steam by the heat from combustion with heat transfer taking place in passages in the...
7290518 Piston-connecting rod spherical coupling structure  
A spherical coupling structure for a piston and a connecting rod, wherein a protrusion provided to the reverse side of a crown of a piston and a holding member for holding a small end are slidably...
7284526 Ellipsoid roller bearing piston ring  
An improved piston ring suitable for use in an internal combustion engine is disclosed comprising a plurality of races sized to receive elongate rollers disposed around the circumference thereof....
7284525 Structure for connecting piston to crankshaft  
There is provided a structure for connecting a piston to a crankshaft in an internal combustion engine, including a piston pin fitted into the piston, a crankpin integral with the crankshaft and a...
7284524 Cylinder head assemblies  
Cylinder head assemblies including a cylinder head and a piston are disclosed. The cylinder head includes: a recessed valve region including a first and second bulbous portion connected by a waist,...
7278390 Piston-pin boss of a piston for an internal combustion engine  
The invention related to a piston-pin boss ( 18 ) of a piston ( 6 ) for an internal combustion engine, comprising a piston-pin bore ( 1 ) for receiving a piston pin. To improve the passage of oil...
7273022 Concentric piston for variable compression ratio directly based on the combustion chamber pressure  
This invention produces a variable compression ratio in internal combustion engines, based on a sliding concentric piston which moves up by an internal spring and down by the different changing...
7258087 Air intake porting for a two stroke engine  
A two stroke engine of a particular configuration can have its power output increased by running bigger pistons and using ports in the piston skirt through which to conduct compressed air within...
7255084 Piston with a skirt having a low coefficient of friction  
A piston for an internal combustion motor has a skirt with a surface, which is at least partially polished and thereafter coated with a coating having a hardness of greater than 8 GPa and having a...
7219641 Piston for internal combustion engines  
The invention relates to a piston for internal combustion engines comprising a lower part which forms the shaft area and also comprising a piston upper part which is connected thereto by means of...
7213564 Direct injection combustion chamber geometry  
An obstruction is employed in a combustion chamber of an internal combustion engine. The obstruction is located within the chamber to generate turbulence and break-up or disrupt the soot rich zone...
7213562 Piston for a combustion engine and casting method for the production thereof  
The invention relates to a piston ( 1 ), which is comprised of an approximately circular cylindrical upper area ( 5 ) and of a lower area ( 6 ), having two hubs ( 7 ), which are set back toward the...
7165400 Locomotive engine emission control and power compensation  
A method and apparatus for lowering NOx in diesel engine exhaust gases while maintaining thermal efficiency, by retarding the start of fuel injection, increasing the compression ratio, and reducing...
7162990 Two-part piston for an internal combustion engine  
A two-part piston for an internal combustion engine, comprising a piston head and a piston skirt connected with the piston head in articulated manner, by way of a piston pin. The piston head has a...
7152567 Piston for an internal combustion engine  
The invention relates to a piston for an internal combustion engine comprising piston-pin bores, into which lubrication grooves that run around the nadir and equator zones of said bores are...
7143723 Piston for an internal combustion engine  
A pivoted piston for an internal combustion engine. The piston has a pivot pin and an arcuate first sealing surface ( 12 ) which describes a circumferential path about the pivot pin which forms a...
7131418 Cooled piston for an internal combustion engine  
The invention relates to a cooled piston ( 1 ) for an internal combustion engine comprising a cooling duct ( 2 ). This cooling duct encircles in an annular manner inside the piston head at the...
7096848 Direct injection diesel engine  
A combustion chamber ( 20 ) opening toward a cylinder head ( 5 ) is provided on a top surface ( 11 ) of a piston ( 10 ), and this combustion chamber ( 20 ) comprises a first volume ( 22 ) having an...
7086368 Piston for an internal combustion engine  
A piston for an internal combustion engine includes a crown, tubular walls extending from the edge of the crown, and a cup portion protruding from the rear surface of the crown and having a concave...
7086152 Engine piston and manufacture thereof  
A method of forming a low-friction, helically ridged skirt surface of an engine piston comprises cutting a continuous groove in a piston body rotating about axis so that adjacent groove turns...
7080610 Cooled piston consisting of two parts  
Cooled two-part piston for internal combustion engines having an upper piston part containing the piston ring grooves and piston pin bosses, and a piston skirt connected with the former exclusively...
7069897 Forged piston for internal combustion engine and manufacturing method thereof  
A forged piston for an internal combustion engine formed from an aluminum alloy containing silicon in an amount of 6 to 25 mass %, includes an oil ring groove section ( 12 ) and a skirt section (...
7066132 Piston with oxidation catalyst  
Pistons reciprocating in cylinders of a hydrocarbon-fueled internal combustion engine tend to trap air and unburned fuel between the top of the piston head and its enclosing cylinder wall. The...
7025031 Low emission fuel efficient diesel locomotive engine including a piston having a toroidal surface  
A diesel locomotive engine having a piston with a unique bowl geometry. The bowl is defined in part by a center portion having a partial spherical shape. A cone portion ( 22 ) is located adjacent...
7004140 Piston structure of engine  
A piston structure of an engine generates an automatic flow of gas through a hole penetrating from a bowl of the piston toward a lateral side of the piston. The structure provides a reinforcement...
6957638 Piston for an internal combustion engine  
A one-piece piston for an internal combustion engine, having a ring-shaped cooling channel arranged in the outer region of the piston head, is proposed, which is closed off by a ring-shaped cooling...
6955165 Three-reentrancy combustion chamber  
A combustion chamber assembly for use in a piston of a diesel engine includes a combustion chamber being defined intersecting a crown of the piston, the combustion chamber being substantially...
6951196 Reciprocating engine with rocker valve gear  
The reciprocating engine comprises a rocker valve gear, pistons which are fastened to a connecting rod and connected by crankshaft journals to a crankshaft, a balancer, and a camshaft which is...
6947831 Pressure sensor diagnosis via a computer  
A method is described for controlling regeneration of a particulate filter based on at least a sensor, such as a differential pressure sensor. Degradation of the sensor is then detected in a...
6945212 Combustion chamber structure for internal combustion engine  
A combustion chamber structure for an internal combustion engine is configured with a combustion chamber surface that has a recess disposed around at least a pair of intake openings. The recess...
6945210 Combustion chamber with one concave surface and three convex surfaces  
A combustion chamber assembly for use in a piston of a diesel engine includes a combustion chamber defined intersecting a crown of the piston, the combustion chamber being defined by a concave...
6938604 Cooling channel cover for a one-piece piston of an internal combustion engine  
A cooling channel cover for a one-piece piston of an internal combustion engine, the piston having a closed cooling channel that runs around inside the piston crown, at the level of the piston ring...
6935301 Combustion chamber  
A combustion chamber assembly for use in a diesel engine, includes a combustion chamber having a lower portion and an upper portion and being defined in a crown of a piston, the combustion chamber...
6928997 Direct injection engine  
An exhaust-valve-side portion of a bottom surface of a bowl is connected to an upper surface of a piston by a smoothly curved surface. Therefore, a separation of a tumble flow can be minimized and...
6923153 Piston and connecting rod assembly having phosphatized bushingless connecting rod and profiled piston pin  
The present invention relates to a connecting rod and piston pin assembly for an internal combustion engine to improve wear of the piston/connecting rod pivot point and reduce deformation of the...
6920860 Cooling channel cover for a one-piece piston of an internal combustion engine  
A cooling channel cover for a one-piece piston of an internal combustion engine, the piston having a closed cooling channel that runs around inside the piston crown, at the level of the piston ring...
6910455 Spark ignition engine with shallow bowl-in-piston geometry  
A piston for use with a direct injection, spark ignition engine includes a piston body with a top face having a piston deck and a shallow bowl. Furthermore, the shallow bowl has a maximum depth...
6904878 Internal combustion engine with novel fuel/air delivery system  
Blower forces fuel/air mixture into bore of cylinder head against small diameter piston of compound piston assembly, forcing assembly down in engine cylinder, permitting fuel/air mixture to enter...
6892690 Cooling channel cover for a one-piece piston of an internal combustion engine  
A cooling channel cover for a one-piece piston of an internal combustion engine, the piston having a closed cooling channel that runs around inside the piston crown, at the level of the piston ring...
6892689 Cooling duct piston for a direct-injection diesel engine  
In a cooling channel piston for a diesel engine with direct injection, a reduction in the compression height is achieved while keeping the output the same or increasing it. The piston consists of...
6877473 Diesel engine piston  
The invention relates to a piston for a diesel engine comprising a combustion cavity. The piston crown and the cavity are plasma-sprayed with a coating. The aim of the invention is to produce the...
6868817 Simplified combustion chamber  
A combustion chamber assembly for use in a piston of a diesel engine includes a combustion chamber defined intersecting a crown of the piston, the combustion chamber being defined by three curved...
6866028 Emission reduction kit for EMD diesel engines  
Engine reconfiguration kits are developed for NOx emission reduction in Electro-Motive Division of General Motors Corporation model 645 diesel engines. The kits feature improved unit fuel injectors...
6854439 Prechamber combustion system  
An improved combustion system particularly for a larger type diesel engine featuring a prechamber with a generally cup-shaped bottom tip portion facing the engine's main combustion chamber and with...
6845741 Piston for an internal combustion engine  
A piston for an internal combustion engine is provided. The engine has an intake port through which an intake air is introduced into the cylinder in a way as to produce a swirl that travels along...
6837205 Internal combustion engine  
An internal combustion engine is disclosed that includes a piston construction having a compression ring sealing arrangement that prevents penetration of gases thereby, which gases normally produce...
6837146 Piston for internal combustion engines  
To provide the pistons of internal combustion engines with profiled ring grooves in a simple manner. To this end, the profile is produced by laser beams.
Matches 1 - 50 out of 829 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >