Patents for F16J 1 - Pistons; Trunk pistons; Plungers (5,199)
02/2008
02/06/2008CN201016390Y Piston structure improvement of metal extrusion press oil-hydraulic cylinder
02/06/2008CN100366883C 往复式发动机 Reciprocating engines
02/05/2008US7325478 High pressure low volume pump
01/2008
01/31/2008WO2008011909A1 Piston portion for a piston assembly and a piston assembly
01/29/2008US7322273 Piston-piston rod retaining assembly for a hydraulic piston and cylinder unit
01/24/2008WO2007135534A3 Piston for internal combustion engine and internal combustion engine with the same
01/24/2008US20080017025 Variable Tension Ring Mechanism
01/24/2008US20080017024 Piston for internal combustion engine
01/24/2008DE102006033984A1 Differential piston has front surface which closes first fluid chamber and rear surface closing second chamber, chambers being fed with fluid via three fixed fluid channels and fourth, vertical channel through piston behind rear surface
01/24/2008DE102006033293A1 Cylinder and piston, especially for an internal combustion motor, are in a cross section with different curve radii in zones around the periphery
01/23/2008EP1881189A1 Piston-cylinder system and hydraulic compensation device
01/23/2008EP1880130A1 Pin for swivel joints on crank mechanisms
01/16/2008EP1877659A1 Piston for a combustion engine and method for coating the hub bores thereof
01/15/2008CA2204534C Piston compressor of the horizontal type
01/10/2008US20080006148 Pump crosshead and connecting rod assembly
01/09/2008EP1875977A1 Ring insert cooling duct interconnection
01/09/2008EP1797358B1 Reciprocating machine
01/09/2008CN201003603Y Plunger type braking master cylinder piston
01/03/2008WO2008002256A1 Device at a hydraulic cylinder
01/03/2008DE102006029040A1 Piston for use in reciprocating internal combustion engine of vehicle, has piston pin bearing with bearing sections for bearing piston pin, and piston skirt produced from sheet material, where sections are formed by double wall structure
01/02/2008EP1507970B1 Piston for internal combustion engines
12/2007
12/27/2007DE102006025579B3 Piston rod for e.g. passenger car`s vibration damper, has axial transit channel via which mounting screw is guided, where thread connections provided by screw are accessible for adjustment of pre-stressing in each stroke position of rod
12/26/2007EP1870195A1 Micro-concave portion machining method
12/26/2007EP1504182B1 Cooled piston for an internal combustion engine
12/26/2007CN200996472Y Piston in balance cylinder of pressurizer
12/26/2007CN200996471Y Balance-cylinder piston for pressurizer
12/25/2007US7311075 Split piston for an internal combustion engine
12/21/2007WO2007146921A2 Liquid dispensing syringe
12/20/2007US20070289442 Half-sleeved and sleeveless plastic piston pumps
12/20/2007DE102006027351A1 Piston structure for an internal combustion engine has holes in a piston's hubs fitted with a bolt placed so as to float and be secure against side movement
12/19/2007CN101090800A Connecting rod assembly for an internal combustion engine and method of manufacturing same
12/18/2007US7308850 Piston for combustion engine
12/18/2007US7308849 High-pressure pump, in particular for a fuel injection device of an internal combustion engine
12/13/2007CA2549972A1 Piston carrying guide tube
12/12/2007CN200989339Y Hydro-cylinder controlled by electromagnetic force
12/12/2007CN101087942A Piston for a combustion engine and method for coating the hub bores thereof
12/12/2007CN101087941A Piston for a combustion engine
12/12/2007CN100354048C Fluid dispenser pump
12/11/2007US7305960 Piston for an internal combustion engine
12/06/2007WO2007047799A3 Two-speed cylinder
12/06/2007US20070280777 Sliding self-locking mechanism
12/06/2007DE202006011541U1 Gießkolben Casting piston
12/06/2007DE102007006948A1 Production of an annular groove of the base of a steel piston of an internal combustion engine comprises providing the groove with a layer absorbing the energy of laser beams before or during hardening and impinging with laser beams
12/05/2007CN101084088A Method of manufacturing a connecting rod assembly for an internal combustion engine
12/05/2007CN100353094C Piston for an internal combustion engine
12/05/2007CN100352968C Engine piston-pin sliding structure
12/04/2007US7302884 Piston
11/2007
11/29/2007WO2007135534A2 Piston for internal combustion engine and internal combustion engine with the same
11/29/2007US20070272078 Piston Device for Internal Combustion Engine
11/21/2007EP1856431A1 Shape detail of a piston to avoid jamming within a distorted bore
11/20/2007US7296862 Collapsible track undercarriage for installation and tensioning
11/14/2007CN101070575A Composite aluminium alloy for piston and producing process
11/13/2007US7293497 Piston
11/08/2007WO2007124783A1 Assembly of cylinder and piston, and piston for use therein
11/08/2007US20070256557 Sealing Device
11/08/2007DE102006020861A1 Vorrichtung zum Schmieden von buchsenartigen Gegenständen sowie ein danach hergestelltes Schmiedeteil Apparatus for forging bush-like objects and then produced a forged part
11/07/2007CN101069034A Piston for automatic transmission
11/07/2007CN101069007A Piston for internal-combustion engine and combination of piston and piston ring for internal-combustion engine
10/2007
10/31/2007DE102006015265A1 Kolben für eine Verbrennungskraftmaschine mit variabler Verdichtung Piston for an internal combustion engine with variable compression
10/31/2007CN100346093C Piston-pin bearing for internal combustion engines
10/24/2007EP1334268B1 cylinder inside prespray processing method
10/23/2007US7284526 Ellipsoid roller bearing piston ring
10/18/2007WO2007115527A1 Pin bosses of a piston for an internal combustion engine
10/18/2007WO2007115526A1 Piston for an internal combustion engine
10/18/2007WO2007115525A1 Piston for an internal combustion engine
10/18/2007DE102006015585A1 Kolben für einen Verbrennungsmotor Piston for an internal combustion engine
10/17/2007EP1725695A4 Coated piston pin
10/17/2007EP1456567B1 Brush seal
10/17/2007CN200961683Y Hydraulic piston cylinder plunger
10/16/2007US7281449 Connecting rod and bearing-equipped connecting rod
10/11/2007US20070235003 Piston formed by powder metallurgical methods
10/11/2007DE112005002856T5 Kolben für Verbrennungsmotor und Kombination aus Kolben und Kolbenring für einen Verbrennungsmotor Pistons for internal combustion engine and combination of piston and piston ring for an internal combustion engine
10/11/2007DE102006015605A1 Kolbenanordnung Piston assembly
10/11/2007DE102006015587A1 Oberteil eines gebauten Kolbens Upper part of a composite piston
10/11/2007DE102006015586A1 Bolzennaben eines Kolbens für einen Verbrennungsmotor Pin bosses of a piston for an internal combustion engine
10/10/2007CN200958599Y Piston and piston-bar integrated structure
10/10/2007CN101049668A Hot riveting technique in use for piston rod
10/10/2007CN100342137C Combination of chamber and piston, pump, motor, shock absorber and transducer incorporating the combination
10/09/2007US7278390 Piston-pin boss of a piston for an internal combustion engine
10/04/2007US20070227350 Lubricant-cooled and wristpin lubricating piston
10/04/2007DE102006014222A1 Piston of hydrostatic piston machine, e.g. axial piston engine in angular plate, has cavity hole with expansion body, which is arranged, and is made of material with large thermal expansion co-efficient
10/03/2007EP1840419A1 Piston with surface finishing
09/2007
09/27/2007DE102006013904A1 Piston pin safety device for piston pin of combustion engine, has locking element with radial contact surface, which is provided at each end face of piston pin and lies at assigned locking rings
09/26/2007CN100339616C Brush seal
09/25/2007US7273355 Compressor assembly with piston having multiple cross sections
09/25/2007US7273004 Reciprocating machine
09/20/2007DE102007009514A1 Unten geschlossener Zylinderkolben und Verfahren zum Herstellen eines unten geschlossenen Zylinderkolbens Below are closed cylinder piston and method for producing a bottomed cylinder piston
09/19/2007EP1430211B1 Method for producing a piston or piston head for an internal combustion engine
09/19/2007CN200949650Y Integral lock ring type piston
09/19/2007CN101040136A One piece cast steel monobloc piston
09/12/2007EP1831562A1 Piston-cylinder arrangement for a reciprocating compressor
09/12/2007CN100337020C Manufacutring technology of friction pair four composite unit without grinding
09/06/2007US20070204747 Internal combustion engine with improved thermal efficiency
09/06/2007US20070204746 Piston Pin Bearing For Pistons Of An Internal Combustion Engine
09/06/2007DE112005002731T5 Kolben für ein Automatikgetriebe Piston for an automatic transmission
09/06/2007DE102006008910A1 Kolbenbolzen mit Gleitschichten für Pleuelaugen in Verbrennungsmotoren Piston pin with overlays for connecting rod in internal combustion engines
09/05/2007CN101031742A Piston having centered pin hole and skirt profile
09/05/2007CN101028682A Bottomed cylindrical piston and method of manufacturing bottomed cylindrical piston
08/2007
08/30/2007US20070199442 Piston pin with slide layer for connecting rod eye for internal combustion engines
08/30/2007DE102007008965A1 Piston e.g. for vehicle air spring, has cap-like piston body which can be connected with flexible spring bellows and has connection
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