| Patents for F16J 1 - Pistons; Trunk pistons; Plungers (5,199) |
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| 05/03/2012 | US20120103183 Wear-resistant antifriction lacquer for coating engine pistons |
| 05/03/2012 | DE102010043124A1 Kolben für einen Verbrennungsmotor Piston for an internal combustion engine |
| 05/02/2012 | CN102439314A Connecting rod without wrist pin |
| 04/26/2012 | WO2012052485A1 Piston for a pneumatic system |
| 04/25/2012 | CN202203389U 轧机卷取机钳口油缸活塞 Mill coiler jaw cylinder piston |
| 04/18/2012 | CN102422005A Piston having a central cooling gallery with a contoured flange |
| 04/18/2012 | CN102418785A Auxiliary speed changing box gear shift cylinder, speed changing box gear shift device and cargo truck |
| 04/18/2012 | CN101668938B Piston for an internal combustion engine |
| 04/17/2012 | CA2676523C Self-retaining anti-rotation clip |
| 04/12/2012 | US20120085313 Piston-head design for use in an internal combustion engine |
| 04/12/2012 | US20120085229 Multipart-piston for a cylinder arrangment |
| 04/12/2012 | US20120085228 Diesel piston with bi-metallic dome |
| 04/12/2012 | DE102010047975A1 Piston device for reciprocating internal combustion engine of motor vehicle, comprises piston unit, which has piston rod guiding unit with sliding surface, where sliding connection is produced by sliding surface with connecting rod |
| 04/12/2012 | DE102010047974A1 Piston device for use in reciprocating-piston internal combustion engine of motor car, has connecting rod guiding unit with lower bearing element formed as two pieces for assembling connecting rod unit in preassembled condition |
| 04/12/2012 | DE102010047972A1 Piston device for lifting cylinder combustion engine of motor car, has connecting ranging guide unit which forms closures with attachment element of connecting ranging unit |
| 04/12/2012 | DE102010047633A1 Mehrteiliger Kolben für eine Zylinderanordnung Multi-part piston for a cylinder assembly |
| 04/11/2012 | EP2439429A1 Multipart piston for a cylinder assembly |
| 04/10/2012 | US8151691 Variable compression ratio piston with rate-sensitive response |
| 04/05/2012 | US20120080004 Piston assembly |
| 04/04/2012 | EP2435594A1 Sliding element with exposed functional surface |
| 04/04/2012 | CN102401129A 一种镶铸活塞体及其镶铸方法 A piston body and cast-cast-method |
| 04/04/2012 | CN102397968A 一种异种金属复合活塞及其锻装工艺及锻装用模具 One kind of dissimilar metal composite piston and its loading process and the forging die forging equipment |
| 04/03/2012 | US8146483 Piston for radial piston hydraulic engine and method for making same |
| 03/28/2012 | EP2198161B1 Hermetic compressor |
| 03/28/2012 | CN102395819A Piston with central directional oil flow and wrist pin lubrication feature and method of construction thereof |
| 03/28/2012 | CA2729479A1 A free piston engine with a magnetic or a thermally resistive coupling |
| 03/27/2012 | US8141503 Method and apparatus for improving air seeder boot |
| 03/27/2012 | US8141476 Durable piston and a ring unit for the durable piston |
| 03/22/2012 | WO2012034647A1 Steel piston for internal combustion engines |
| 03/22/2012 | US20120067203 Sliding element with exposed functional surface |
| 03/21/2012 | CN202170993U 一种带润滑油槽的活塞 A piston with lubrication grooves |
| 03/21/2012 | CN102388213A Piston with crown cooling jet |
| 03/21/2012 | CN102384264A Cast iron ring carrier used for aluminum piston and manufacturing method thereof |
| 03/21/2012 | CN102380598A Manufacturing process of piston of hydraulic cylinder |
| 03/21/2012 | CN101644329B Landing leg hydraulic cylinder piston and manufacturing process thereof |
| 03/15/2012 | US20120061202 Transmission piston with contained return spring |
| 03/15/2012 | DE102010045221A1 Stahlkolben für Verbrennungsmotoren Steel pistons for internal combustion engines |
| 03/14/2012 | EP2427644A2 Piston having a central cooling gallery with a contoured flange |
| 03/14/2012 | CN202165590U 活塞装置 Piston means |
| 03/14/2012 | CN202162748U 活塞装置 Piston means |
| 03/14/2012 | CN102374021A Free piston engine |
| 03/07/2012 | EP2424709A1 Method and device for producing a piston for an internal combustion engine and piston for internal combustion engine |
| 03/07/2012 | EP1438493B1 Closed gallery monobloc piston having oil drainage groove |
| 03/07/2012 | CN202158177U 一种改进的活塞 An improved piston |
| 03/07/2012 | CN202158176U Piston skirt structure |
| 03/07/2012 | CN202158175U Hydraulic oil cylinder piston |
| 03/07/2012 | CN202158174U 一种带定位机构的低倒档制动器活塞 A low reverse brake piston with a positioning mechanism |
| 03/07/2012 | CN202157839U 一种发动机活塞连杆的润滑结构 Lubricating structure of an engine piston rod |
| 03/01/2012 | WO2012024779A1 Polygonal section piston |
| 03/01/2012 | US20120048390 Wrought and cast aluminum alloy with improved resistance to mechanical property degradation |
| 03/01/2012 | US20120048229 One piece cast ferrous crown piston for internal combustion engine |
| 03/01/2012 | CA2846082A1 Polygonal section piston |
| 02/29/2012 | CN202152846U 一种活塞 One kind of piston |
| 02/29/2012 | CN1782358B Piston for internal combustion engine |
| 02/28/2012 | US8122812 Piston and cylinder unit |
| 02/23/2012 | US20120042776 Piston Guide Element |
| 02/23/2012 | DE102010039507A1 Kolbenführungselement Plunger guide member |
| 02/23/2012 | DE102009056630B4 Kolben Piston |
| 02/22/2012 | CN202149199U 易维护活塞防松装置 Easy maintenance piston locking device |
| 02/22/2012 | CN102362157A Piston chamber combination having means for measuring and reading a parameter of a remotely positioned device |
| 02/15/2012 | EP2417342A2 Piston with crown cooling jet |
| 02/15/2012 | CN102356256A Piston pin and a piston - piston pin combination |
| 02/14/2012 | US8113105 Two-part piston for an internal combustion engine |
| 02/09/2012 | WO2012017590A1 Reciprocating engine |
| 02/09/2012 | DE102011104248A1 Crank gear for use as driving gear of e.g. reciprocating piston engine, has crank hinge pin inserted into small eyes of connecting rod of gear and designed as cradle joint that comprises two cradle pieces |
| 02/09/2012 | DE102010033483A1 Reciprocating engine, particularly hydraulic high pressure pump or axial piston pump for high pressure cleaners, has piston, which is guided in cylinder and is partially made of plastic |
| 02/09/2012 | DE102009001888B4 Kolben für einen Verbrennungsmotor Piston for an internal combustion engine |
| 02/08/2012 | EP2414708A2 Positive displacement machine piston with wavy surface form |
| 02/08/2012 | CN202140554U 一种空气炮用新型活塞 An air gun with a new piston |
| 02/02/2012 | US20120028217 Capsule and piston |
| 02/02/2012 | US20120024149 Die casting piston and ring assembly |
| 02/02/2012 | DE102010033257A1 Wheel piston mounted in e.g. combustion engine, has piston head which is mounted with several wheels at the center, such that the wheels are moved forward and backward in inner wall of cylinder |
| 02/02/2012 | DE102004033968B4 Verwendung einer Beschichtung zur Beschichtung von hochbelastbaren tribologischen Oberflächen von bewegten Bauteilen Use of a coating for coating of heavy-duty tribological surfaces of moving parts |
| 02/01/2012 | CN202132493U 内加固式活塞销 Rugged piston pin inside |
| 02/01/2012 | CN202132492U 易维护活塞防松装置 Easy maintenance piston locking device |
| 02/01/2012 | CN102338177A Piston lubrication mechanism in braking wheel cylinder |
| 01/31/2012 | US8105058 Drywall mud pump with improved connection between the piston and the rod |
| 01/26/2012 | WO2012011150A1 Piston structure and control valve |
| 01/26/2012 | WO2012010939A1 Hydraulic motor, and electricity, air, air-conditioning, and heating generation |
| 01/26/2012 | CA2812697A1 Hydraulic motor, and electricity, air, air-conditioning, and heating generation |
| 01/25/2012 | EP2409054A1 Piston pin and a piston - piston pin combination |
| 01/25/2012 | CN102333616A Method and device for producing a piston for an internal combustion engine and piston for internal combustion engine |
| 01/24/2012 | US8100048 Pinless piston and connecting rod assembly |
| 01/18/2012 | CN202118238U Piston pin |
| 01/18/2012 | CN202118237U Oil-guiding type piston |
| 01/18/2012 | CN202118236U Elastic sleeve structure of piston |
| 01/18/2012 | CN202118235U Piston skirt |
| 01/18/2012 | CN202118234U Piston top structure |
| 01/18/2012 | CN202118233U Piston |
| 01/18/2012 | CN202118232U Piston |
| 01/18/2012 | CN202118231U Piston structure |
| 01/18/2012 | CN202118230U Integral spherical iron piston |
| 01/18/2012 | CN202118229U Steel top iron skirt piston |
| 01/18/2012 | CN202118228U Piston fastening structure of heavy load oil cylinder |
| 01/12/2012 | DE102010026946A1 Composite piston i.e. position piston, for use in automated transmission for motor car, has seal lip established to elastic deformation with increase in pressure in pressure chamber such that seal lip partly closes leakage channel |
| 01/11/2012 | CN102313010A Air obstruction piston positioned above piston |
| 01/11/2012 | CN101793320B Piston, end shaft-movable shaft mechanism and internal combustion engine, compressor |
| 01/05/2012 | WO2012001887A1 Piston for spark-ignition engine |
| 01/04/2012 | EP2401529A2 Piston with central directional oil flow and wrist pin lubrication feature and method of construction thereof |
| 01/04/2012 | EP2401489A1 Piston having depression |