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8079145 |
Method of manufacturing a connecting rod assembly for an internal combustion engine
A method of manufacturing a connecting rod assembly including the steps of defining a small end of a connecting rod assembly having a terminal end and then defining a pin bore extending through the...
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7918022 |
Method of producing a cooling channel piston for an internal combustion engine
A method of producing a cooling channel piston for an internal combustion engine having a cooling channel in its piston crown, wherein a piston lower section with piston bosses, piston pin bores...
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7870669 |
Multi-axially forged piston
A multi-axially forged mono-bloc piston includes a lower crown part forged of steel and including a pair of pin bosses and an integral skirt formed as one piece with the pin bosses 20. The lower...
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7827683 |
Method for forming tapered piston pins
A method is provided for cold forming center web or webless tapered piston pins in one forming sequence. The method eliminates secondary operations such as but not limited to machining, annealing,...
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7536945 |
Piston pin for a combustion engine and method for its manufacture
A piston pin for connecting the small connecting rod eye of a connecting rod to a piston of a combustion engine and a method for manufacturing the piston pin. The piston has boss bores aligned with...
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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...
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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...
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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...
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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 (8)...
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6550138 |
Piston pin assembly
A method for reducing the incidence of piston pin failure by providing a retainer assembly for piston pin plugs such that the plugs cannot be removed or shaken lose during operation. A plastic rod...
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6402484 |
Refrigerant compressor and method for assembling
The invention concerns a refrigerant compressor with a cylinder block (1), a valve plate (4), a pipe connectable or connected with a suction muffler, a cover (2) covering the valve plate (4), a...
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6345599 |
Piston for internal combustion engines
A light metal piston for internal combustion engines which includes a bearing bushing comprising a shell wrapped from a rolled strip or band shaped metal material. The shell has a butt joint which...
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6318242 |
Filled hydraulic piston and method of making the same
The present invention relates to a filled piston assembly for a hydraulic pump or motor. The filled hydraulic piston assembly includes a blank piston body having first and second ends and a cavity...
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5255592 |
Wrist pin and method for manufacturing a wrist pin
A wrist pin is provided for connecting a connecting rod to a piston, comprising a cylindrical aluminum pin having an outer cylindrical surface, the pin being matingly insertable into a bore of a...
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5228194 |
Maine propulsion device with closed deck
Disclosed herein is an engine comprising a closed deck cylinder block including a cylinder bore having an outer end, a counter bore at the outer end of the cylinder bore, and an outer wall...
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5114262 |
Hollow ceramic piston pin
A hollow ceramic piston pin has a pair of ribs in the form of partition walls axially separating the inside thereof. The piston pin has the ribs in the axial positions where it mates diameterially...
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5094149 |
Pistons having a component incorporated therein
Pistons and a method for making them are described. The pistons have reinforcing components, such as piston ring groove inserts, incorporated therein. The reinforcements have one or more porous...
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5076149 |
Wrist pin, piston assembly and method for making same
A piston assembly is disclosed having a wrist pin for pivotably attaching a connecting rod to a piston for use in an internal combustion engine. The wrist pin is formed from an elongated circular...
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5056218 |
Method of making a hollow metal piston having elastic strip casted to its skirt
A light metal piston for internal combustion engines has a pair of inserts on the inside of upper piston skirt made of a material of lower thermal expansion coefficient than that of the light...
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4852231 |
Piston wrist pin installation and removal device and method of using
A device for installation and removal of a wrist pin from a piston includes a press pin having an upper end for engaging a hydraulic ram and a lower end section of reduced diameter which engages...
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4578849 |
One-piece yoke thrust bearing for a piston and connecting rod assembly and method utilizing said bearing
A method of assembling a piston, connecting rod, wrist pin, and yoke thrust bearing is disclosed wherein the method comprises the steps of disposing between the piston and connecting rod, a...
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4572058 |
Piston cylinder system, especially for internal combustion engines
To reduce deformation of the piston pin for the rotating connection of a ton and a connecting rod in a piston cylinder system, especially in internal combustion engines, where the piston pin is...
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4515003 |
Piston shaping
A method of shaping the gudgeon pin bores formed in gudgeon pin bosses of pistons comprises introducing into the bores portions of a pin-shaped tool before the insertion of the gudgeon pin. A load...
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4461595 |
Wrist pin for reciprocating engines
A wrist pin for coupling a connecting rod to a piston in an engine is disclosed. The pin takes the form of a metal tube having a specially designed aperture with an increased surface area in...
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4430906 |
Composite wrist pin and process
A lightweight composite wrist pin is provided to decrease fuel consumption, attenuate noise, and permit increased speed of operation.
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4406558 |
Gudgeon pin
A device, such as a gudgeon pin, for connecting a piston of a reciprocating internal combustion agent to a connecting-rod comprises at least in part a fibre-reinforced composite material. The...
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4358881 |
Method for manufacturing a piston with a separate skirt
A method for manufacturing a piston for internal combustion engines, compressors and the like, comprising a head portion articulately connected to a separate skirt portion, wherein the skirt...
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4300274 |
Method of manufacturing connecting rod for axial cylinder-type reciprocating piston engine
A method of manufacturing a connecting rod for reciprocating piston engines, especially axial cylinder-type reciprocating piston engines, with the connecting rod including a tubular shaft having...
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4189932 |
Piston pin bore and method of finishing
A piston comprises a piston pin bore adapted to at least partially contain a piston pin. The bore is finished by a roll burnishing process which substantially simultaneously prestresses, smooths...
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4182012 |
Method of making a piston with a gudgeon pin
The invention relates to a piston assembly for compressor and the method of making the assembly. A piston body is molded with spaced apart downwardly open grooves formed with concave...
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3654840 |
FORGED PISTON WITH CIRCUMFERENTIAL GRAIN FLOW AROUND UPPER REGION OF WRIST PIN BORE AND METHOD OF PRODUCING SAME
Heavy duty piston and method of making the same, the piston including confronting wrist pin boss portions, the walls defining the inner extremities of the boss portions being convergingly inclined...
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3575089 |
GUDGEON PIN CONNECTION FOR INTERNAL COMBUSTION ENGINE
The specification describes the making of a gudgeon pin connection in the construction of internal combustion engine, the connection being characterized by the facing of the ends of the pin, which...
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3473209 |
METHOD TO RELIEVE PIN BORE OF PISTONS
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2806752 |
Aircraft engine wrist pin
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