Class F01P : COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
Subclass 3/08: Liquid cooling (propelling cooling-air or liquid coolants F01P 5/00; controlling supply or circulation of coolants F01P 7/00) Arrangements for cooling pistons Cooling of piston exterior only, e.g. by jets
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12221918 | Cooling system for a gas engine piston, gas engine, cooling method for gas engine piston | May 03, 23 | Feb 11, 25 | CATERPILLAR ENERGY SOLUTIONS GMBH |
| 11959412 | Pistons and piston assemblies for internal combustion engines | May 03, 22 | Apr 16, 24 | Cummins Inc.; Achates Power Inc.; |
| 11939904 | Optimized piston temperature control in gaseous fuel hydrogen engine system | Feb 18, 22 | Mar 26, 24 | Caterpillar Inc. |
| 11927127 | Dual spray piston cooling jet device | Apr 11, 23 | Mar 12, 24 | S & S Cycle, Inc. |
| 11920502 | Twin-jet piston cooling nozzle made of plastic material | Apr 21, 21 | Mar 05, 24 | Bontaz Centre |
| 11768128 | Neutronic engine | Jun 07, 22 | Sep 26, 23 | UT-BATTELLE, LLC |
| 11761368 | Engine unit | Sep 01, 22 | Sep 19, 23 | KAWASAKI MOTORS, LTD. |
| 11674431 | Piston cooling jet | Jul 07, 21 | Jun 13, 23 | Transportation IP Holdings, LLC |
| 11655738 | GDCI engine with accelerated oil warm-up | Dec 04, 15 | May 23, 23 | DELPHI TECHNOLOGIES IP LIMITED |
| 11542855 | PCJ solenoid valve diagnostic method | May 09, 22 | Jan 03, 23 | Hyundai Motor Company; KIA CORPORATION; |
| 11506110 | Oil-spray tube with poppet valve | May 18, 20 | Nov 22, 22 | Schaeffler Technologies AG & Co. KG |
| 11473484 | Axial fluid spray nozzle with vent valve | Jun 12, 18 | Oct 18, 22 | Bontaz Centre R & D |
| 11467062 | Oil pressure switch, apparatus for diagnosing piston cooling oil jet, and method of controlling the same | Apr 12, 21 | Oct 11, 22 | Hyundai Motor Company; KIA CORPORATION; |
| 11415040 | Heating oil for enhanced active thermal coolant system | Feb 25, 21 | Aug 16, 22 | GM Global Technology Operations LLC |
| 11391197 | Piston cooling apparatus of engine and method for controlling the same | Nov 19, 21 | Jul 19, 22 | Hyundai Motor Company; KIA CORPORATION; |
| 11333057 | Captive screw spray nozzle | Jun 12, 18 | May 17, 22 | Bontaz Centre R & D |
| 11300019 | Nozzle for cooling engine pistons | Jul 07, 17 | Apr 12, 22 | Volvo Truck Corporation |
| 11248515 | Piston cooling jet system | Aug 02, 19 | Feb 15, 22 | Transportation IP Holdings, LLC |
| 11242795 | Piston cooling system | Nov 09, 20 | Feb 08, 22 | Ford Global Technologies, LLC |
| 11105252 | Cooling apparatus of piston and control method thereof | Jul 09, 20 | Aug 31, 21 | Hyundai Motor Company; Hyundai Motor Company & Kia Motors Corporation; |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0101,928 | IN-VEHICLE CONTROL DEVICE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE | Feb 20, 23 | Mar 27, 25 | Hitachi Astemo, Ltd. |
| 2023/0265,777 | OPTIMIZED PISTON TEMPERATURE CONTROL IN GASEOUS FUEL HYDROGEN ENGINE SYSTEM | Feb 18, 22 | Aug 24, 23 | Caterpillar Inc. |
| 2020/0386,143 | FLUID COMPRESSOR AND METHOD OF OPERATING A FLUID COMPRESSOR TO REDUCE OIL CARRYOVER BY A COMPRESSOR PISTON ASSEMBLY | Jun 07, 19 | Dec 10, 20 | Not available |
| 2019/0323,411 | PISTON COOLING SYSTEM | Apr 19, 18 | Oct 24, 19 | Ford Global Technologies LLC |
| 2019/0178,146 | TWO-PIECE TYPE OIL JET ASSEMBLY AND METHOD OF MANUFACTURING THE SAME | Nov 24, 18 | Jun 13, 19 | Not available |
| 2019/0145,301 | PISTON COOLING JETS | Nov 09, 18 | May 16, 19 | Not available |
| 2019/0078,493 | METHOD AND SYSTEM FOR DIAGNOSING FAILURE OF PISTON COOLING DEVICE | Dec 08, 17 | Mar 14, 19 | Not available |
| 2018/0363,537 | PISTON COOLING JET ASSEMBLY | Jun 05, 18 | Dec 20, 18 | Illinois Tool Works Inc. |
| 2018/0306,096 | OIL JET FOR INTERNAL COMBUSTION ENGINE AND PISTON COOLING DEVICE FOR INTERNAL COMBUSTION ENGINE | Mar 29, 16 | Oct 25, 18 | Hitachi Automotive Systems, Ltd. |
| 2018/0283,257 | PISTON COOLING DEVICE | Mar 28, 18 | Oct 04, 18 | Honda Motor Co. Ltd. |
| 2017/0130,639 | PISTON COOLING JET FOR AN INTERNAL COMBUSTION ENGINE | Nov 04, 16 | May 11, 17 | GM GLOBAL TECHNOLOGY OPERATIONS LLC |
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