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Class Information
Number: 123/193.6
Name: Internal-combustion engines > Particular piston and enclosing cylinder construction > Piston
Description: Apparatus having a structure, shape, material or construction which is utilized in a piston (i.e., a solid cylinder or disk fitting snugly in a cylinder and reciprocating).
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7607414 |
Member for internal combustion engine and production method thereof |
Oct. 27, 2009 |
| 7603977 |
Cooling duct piston for an internal combustion engine comprising heat pipes |
Oct. 20, 2009 |
| 7591235 |
Opposed piston engine with piston compliance |
Sep. 22, 2009 |
| 7559306 |
Double-layer lubrication coating composition, double-layer lubrication coating and piston having same coating |
Jul. 14, 2009 |
| 7543557 |
Scuff resistant aluminum piston and aluminum cylinder bore combination and method of making |
Jun. 9, 2009 |
| 7533649 |
Piston for an internal combustion engine |
May. 19, 2009 |
| 7503304 |
Internal engine piston and its production method |
Mar. 17, 2009 |
| 7493882 |
Combination of a cylinder liner and a piston ring |
Feb. 24, 2009 |
| 7472678 |
Combustion chamber shape of direct injection type diesel engine |
Jan. 6, 2009 |
| 7472674 |
Method of manufacture of a piston for an internal combustion engine, and piston thus obtained |
Jan. 6, 2009 |
| 7464683 |
Reciprocating engine |
Dec. 16, 2008 |
| 7464684 |
Composite piston for an internal combustion engine |
Dec. 16, 2008 |
| 7458358 |
Thermal oxidation protective surface for steel pistons |
Dec. 2, 2008 |
| 7441535 |
Shape of combustion chamber for direct-injection diesel engine |
Oct. 28, 2008 |
| 7438039 |
Large-bore, medium-speed diesel engine having piston crown bowl with acute re-entrant angle |
Oct. 21, 2008 |
| 7428889 |
Internal combustion engine |
Sep. 30, 2008 |
| 7415959 |
Cooling channel cover for a piston of an internal combustion engine |
Aug. 26, 2008 |
| 7415961 |
Piston for internal combustion engine, compressor or the like |
Aug. 26, 2008 |
| 7412955 |
Engine component part and method for producing the same |
Aug. 19, 2008 |
| 7406940 |
Piston for internal combustion engine |
Aug. 5, 2008 |
| 7406941 |
One piece cast steel monobloc piston |
Aug. 5, 2008 |
| 7401588 |
Cylinder block with unlined piston bores |
Jul. 22, 2008 |
| 7398754 |
Piston for internal combustion engine |
Jul. 15, 2008 |
| 7395797 |
Piston for internal combustion engine |
Jul. 8, 2008 |
| 7387100 |
Piston for an internal combustion engine and cover ring for the cooling channel of the piston |
Jun. 17, 2008 |
| 7383806 |
Engine with carbon deposit resistant component |
Jun. 10, 2008 |
| 7383831 |
Combustion engine chamber |
Jun. 10, 2008 |
| 7383808 |
Articulated piston skirt |
Jun. 10, 2008 |
| 7383807 |
Coated power cylinder components for diesel engines |
Jun. 10, 2008 |
| 7370627 |
Optimized low emission two-stroke internal combustion diesel engine |
May. 13, 2008 |
| 7370618 |
Internal combustion engine with five valves per cylinder |
May. 13, 2008 |
| 7341053 |
Combustion chamber structure of an internal combustion engine |
Mar. 11, 2008 |
| 7341037 |
Engine piston and manufacture |
Mar. 11, 2008 |
| 7334554 |
Piston |
Feb. 26, 2008 |
| 7325525 |
Piston for internal combustion engine |
Feb. 5, 2008 |
| 7311075 |
Split piston for an internal combustion engine |
Dec. 25, 2007 |
| 7305960 |
Piston for an internal combustion engine |
Dec. 11, 2007 |
| 7302927 |
Two-part piston for an internal combustion engine |
Dec. 4, 2007 |
| 7299770 |
Evaporative in-cylinder cooling |
Nov. 27, 2007 |
| 7290518 |
Piston-connecting rod spherical coupling structure |
Nov. 6, 2007 |
| 7284525 |
Structure for connecting piston to crankshaft |
Oct. 23, 2007 |
| 7284524 |
Cylinder head assemblies |
Oct. 23, 2007 |
| 7284526 |
Ellipsoid roller bearing piston ring |
Oct. 23, 2007 |
| 7278390 |
Piston-pin boss of a piston for an internal combustion engine |
Oct. 9, 2007 |
| 7273022 |
Concentric piston for variable compression ratio directly based on the combustion chamber pressure |
Sep. 25, 2007 |
| 7258087 |
Air intake porting for a two stroke engine |
Aug. 21, 2007 |
| 7255084 |
Piston with a skirt having a low coefficient of friction |
Aug. 14, 2007 |
| 7219641 |
Piston for internal combustion engines |
May. 22, 2007 |
| 7213562 |
Piston for a combustion engine and casting method for the production thereof |
May. 8, 2007 |
| 7213564 |
Direct injection combustion chamber geometry |
May. 8, 2007 |
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