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7607384 Piston for an axial-piston engine of the inclined-axis type and process for manufacturing such pistons  
A piston ( 2 ) for a piston engine, in particular for an axial-piston engine ( 1 ) of the inclined-axis type, comprises a conical section ( 26 ), a neck region ( 19 ) and a ball end ( 9 ) which is...
7503304 Internal engine piston and its production method  
An integrally cast steel piston for internal engines, the cast steel having (a) a composition comprising 0.8% or less of C, 3% or less of Si, 3% or less of Mn,0.2% or less of S, 3% or less of Ni,...
7421782 Method for manufacturing internal combustion engine piston  
A method is provided for efficiently manufacturing a high quality internal combustion engine piston having an annular cavity allowing for good circulation of cooling fluid. An annular groove is...
7404347 Noncircular working device  
A working device of a noncircular workpiece, such as a piston of an internal combustion engine, is improved. A workpiece 10 is held by a work spindle and rotated. A noncircular working device ...
7337539 Method for production of a coolable annular support for internally cooled piston rings  
A method of producing a coolable annular support for internally cooled piston rings and comprising an annular body, a cooling channel plate and respective tubular bodies or plate-shaped bodies...
7310876 Method for making a piston body  
A method for producing a one-part piston body for a piston-cylinder arrangement, in particular a shock absorber piston, is disclosed. The method may include in a first step, pressing a green...
7213337 Method of manufacturing pistons and components thereof, and forging tools  
A method of manufacturing an entire piston, piston heads for example, especially intended for internal-combustion engines, wherein in an initial manufacturing step a blank that will eventually...
7197976 Composite piston  
Devices, piston components, and methods are provided for an improved piston. One embodiment for a piston component includes a base having a side to receive a piston body. A tang is provided to the...
7185572 Method for rounding off the edge of a recess on a piston  
The aim of the invention is to produce a rounding off on a diesel piston comprising a combustion recess and valve recesses that lie at a slant in relation to the piston floor. The rounding off...
7127813 Method for the production of pistons having depression edge armoring, for internal combustion engines  
A method for the production of pistons having depression edge armoring for internal combustion engines, in which a more heat-resistant armoring ring, in comparison with a forged piston blank having...
7104183 One-piece steel piston  
A one-piece steel piston that is made from a piston blank that includes a portion that configured and designed to be displaced to form a cooling gallery and ring belt. The piston blank can be...
7093529 Composite piston  
Devices, piston components, and methods are provided for an improved piston. One embodiment for a piston component includes a base having a side to receive a piston body. A tang is provided to the...
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...
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 (...
7000526 Hydraulic piston made from rolled sheet metal, method for its manufacture and intermediate product of the method  
The invention relates to a cup-shaped hydraulic piston ( 10 ) made from rolled sheet metal, which comprises an open end ( 12 ), a side wall ( 16 ) with a cylindrical outer surface ( 18 ) and an...
6988314 Assembly, tolerance matching and post-manufacturing quality assurance method  
A system and method for assembling an internal combustion engine and for correlating engine information with a vehicle identification number. The engine includes an engine block and a plurality of...
6973723 Piston formed by powder metallurgical methods  
A piston includes a piston structure being unitarily formed in a powder metallurgy process, the piston structure having a crown assembly and a skirt assembly, at least a partial combustion chamber...
6938603 Method for the production of a one-piece piston for an internal combustion engine  
A method for the production of a one piece piston for an internal combustion engine. The piston has a ring shaped cooling channel arranged in an outer region of a piston head. The channel is...
6935221 Method for manufacturing an aluminum die cast piston for reciprocating compressors  
A die cast aluminum piston for a reciprocating compressor. The piston is cast with no coring and thus includes no aperture in the as-cast piston for a wrist pin. The aperture for the wrist pin is...
6889596 Compressor cooler and its assembly procedure  
A cryogenic refrigerator and more particularly, the cryogenic refrigerator compressor assembly procedure and to a mechanism for supporting piston for use in such a cryogenic refrigerator is...
6789313 Piston pin lock ring insertion tool and method  
A piston-pin lock-ring-insertion tool has a ring-insertion tube ( 1 ) in ring-insertion relationship to a ring pusher ( 2 ). The ring-insertion tube has an inside periphery with a press-close taper...
6763757 Process for manufacturing a one-piece cooling-channel piston  
The invention relates to a process for manufacturing a single-piece cooling channel piston, where a piston blank produced by forging is furnished with a circumferential ring-shaped recess between...
6760961 Piston machining  
An apparatus and method of utilization thereof is provided for machining pistons of reciprocating piston internal combustion engines. The piston is held in a work station by its interior cavity and...
6703577 Method of making closed cavity pistons  
A method of securing a cap on a piston body includes forming a first annular V-shaped surface at an open end of a cylindrical piston body; forming a second annular V-shaped surface on an annular...
6681485 Method for casting a piston for a reciprocating internal combustion engine  
A process for producing pistons for a reciprocating internal combustion engine by casting, the process including the steps of determining for at least a first piston of a casting process batch, a...
6546993 Method for producing a box piston  
The invention relates to a casting method for producing a box piston which comprises recesses between the hub support and the ring band. The invention aims to further reduce the weight of the...
6530149 Method for producing hollow piston for compressor by forging  
A method of producing a hollow piston for a compressor, the piston including a head portion which is slidably fitted in a cylinder bore of the compressor, and an engaging portion which engages a...
6508162 Dual alloy piston and method of manufacture  
A dual alloy metallic piston is made by casting a first alloy into a mold to form a corresponding first portion. Before the first alloy solidifies, a second alloy is cast into the mold to form a...
6499387 Unified multi-piece piston and method of manufacture  
A method of manufacturing a piston for heavy-duty diesel engine applications comprises forming a piston body having a pair of pin bosses, and bonding separately formed skirt portions to the pin...
6488454 Method for machining shoe pocket for piston in variable displacement swash plate type compressor  
A method for machining a pair of shoe pockets for piston in a swash plate type compressor is disclosed. In this method, the shoe pockets are respectively formed on the opposed walls of the slot in...
6487773 Method of making one-piece piston  
The invention concerns a method of producing a one-part piston which, in the region of the piston ring zone, has a closed cooling duct and a recess between the piston ring zone and the box-shaped...
6474220 Cooling channel piston with especially low overall height  
The invention relates to a process for producing a cooling channel piston, in which the overall height is reduced in that the annular recess has a lower height than the height of the tool used for...
6453554 Swash plate type compressor piston wherein inner surface of base section of neck portion has as-cast surface area  
A die-cast piston for a swash plate type compressor including a cylinder block having a cylinder bore, including a generally cylindrical head portion slidably movably received in a cylinder bore...
6428909 Aluminum alloy member and production method thereof  
To provide an aluminum alloy member having a high machinability while keeping a sufficient mechanical strength and a sufficient wear resistance, and a method of producing the aluminum alloy member....
6397462 Method of manufacturing a cylinder piston rod guide  
A guide ( 30 ) for surrounding and sealing a rod ( 26 ) in the end of a hydraulic cylinder ( 12 ) including a piston ( 24 ) slidably disposed in the cylinder ( 12 ) and attached to the end of the...
6381842 Method of producing swash plate type compressor piston  
A method of producing a hollow piston for a compressor including a head and an engaging portion for engaging a piston reciprocating drive device, at least the head portion being hollow, the method...
6363608 Method of manufacturing piston  
A composite piston and method for forming such a piston for a reciprocating machine such as an internal combustion engine. A blank is formed from a pair of dissimilar alloys, one of which has...
6353987 Methods relating to constructing reciprocator assembly  
A method of constructing a reciprocator and moving element for a reciprocator. Also, a method of producing a non-contacting alignment of relatively reciprocating elements.
6070323 Piston for internal combustion engine and material therefore  
A method of forming a piston for a reciprocating machine such as an engine. The piston is formed from a powdered material that is comprised of aluminum alloyed with a material selected from the...
6055726 Method of forming a piston  
A water-cooled, two-stroke crankcase compression internal combustion engine for powering a motor vehicle. The engine includes a piston, piston rings, and cylinder bore arrangement that are...
6053081 Method for machining spherical recess in compresser piston  
A method for machining a variable displacement compressor piston. The piston is connected to a swash plate by a pair of semi-spherical shoes. One end of the piston has a slot for receiving the...
6029346 Method of fabricating carbon--carbon engine component  
An internal combustion engine component assembly including piston, wrist pin, and cylinder sleeve, all constructed of a matching carbon--carbon composite is disclosed. The piston is a two-piece...
6018868 Method for manufacturing a piston  
A method for manufacturing a piston, wherein the piston includes a piston body with through-channels for fluid which are covered by valve disks on supporting bodies with valve support surfaces. The...
5960542 Method of producing piston for swash plate compressor  
In order to produce a single headed piston for a swash plate compressor, the following steps are used. First, a shaped block of metal is cast, the block including a plurality of unfinished piston...
5887330 Crimping tool  
A pressing tool for fastening a seal 6 in a groove 5 of a support body is a rotatable holder 12 carrying ball rollers 22. A lip 4 forms a wall of the groove 5. The ball rollers are moved in a...
5823158 Engine valve and method for making the same  
A first part of an engine valve (10) is centered on an axis (A) and comprises a hollow metal member (100) having an outwardly flared first end portion (102) and a second end portion (104). The...
5809962 Method for producing a piston for an internal combustion engine and a piston produced by the method  
A piston for an internal combustion engine includes an insert defining an air chamber opening into the combustion chamber. The insert is preformed to a desired configuration and the piston cast...
5778533 Method of producing a one-part cooling duct piston  
The invention concerns a method of producing a one-part piston which, in the region of the piston ring zone, has a closed cooling duct and a recess between the piston ring zone and the box-shaped...
5713129 Method of manufacturing coated piston ring  
A coated piston ring and method of manufacture for internal combustion engines and compressors. The piston ring having a outer peripheral surface that is coated with a thin substantially final...
5653021 Production process of a piston  
To improve the abrasion resistance by increasing the ratio of copper content in the copper-type alloy layer on the periphery of the ring groove of a piston. A peripheral groove having a section of...
Matches 1 - 50 out of 117 1 2 3 >