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WO/2007/003311A2 |
The invention relates to a piston for a working cylinder, said piston comprising two coaxial piston elements (23a, 23b) which together surround a metallic core and at least partially consist of a plastic material, at least one of said pi...
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WO/2006/127716A2 |
A diesel engine piston assembly comprises a piston body having a top wall with a combustion bowl formed in the top wall and having a combustion bowl edge, an outer ring belt formed with a plurality of ring grooves including a top ring gr...
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WO/2006/114620A1 |
A split displacer piston assembly (1) in conjunction with a Stirling engine is disclosed. Said assembly comprises of two main parts, displacer dome (8) and displacer base (9). Within the displacer dome there are several heat shields (10)...
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WO/2006/110930A1 |
The invention relates to a pin with high form stability and low density, for swivel joints on crank mechanisms, embodied as a composite piece with an outer metal sleeve and a core at least partly made from metal. According to the inventi...
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WO/2006/105851A1 |
The invention relates to a hydraulic cylinder piston having a piston rod (10) and a piston (12) connected thereto. The invention is characterized in that the piston can be braced relative to the piston rod by means of a screw system that...
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WO/2006/102037A1 |
A piston particularly adapted for heavy-duty diesel engine applications is fabricated from a separate head portion and base portion having circumferentially extending joining surfaces that are heated prior to bonding to an elevated tempe...
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WO/2006/094532A1 |
A piston (21; 104) to be mounted inside a cylindrical bore (46; 117) has a cylindrical surface (32; 114) provided with at least one axially extending deepening (31; 116) for accomodating a thermal distortion of the cylindrical bore (46; ...
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WO/2006/072211A1 |
A rolling piston for replacing the sliding friction between the piston and the cylinder with the rolling friction comprises a piston body and a plurality of rolling elements disposed around the piston body, a connecting device is provide...
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WO/2006/071113A2 |
A method for manufacturing products using a mold having at least one mold cavity which is at least partly defined by at least two movable wall parts, wherein the mold is closed and the at least two movable wall parts (35A, 35B) are broug...
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WO/2006/066828A1 |
Disclosed is a piston-cylinder arrangement for a reciprocating compressor, especially a swashplate compressor, comprising a light metal piston (2) which is axially movable within a cylinder (1) and the face of which is fixed to a piston ...
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WO/2006/064096A1 |
The invention relates to a gudgeon pin (21) forming a rotation axis of a pivot pin of a piston (2) provided on a gas compression device such as an internal combustion engine or a compressor, and a small end (5) of a connecting rod (3). I...
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WO/2006/065456A1 |
Apparatus and methods for assembling a piston assembly that comprises a piston comprising a head end flange and a crank end flange and a rod having a head end shoulder and a crank end shoulder. The head end shoulder of the rod contacts t...
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WO/2006/061013A1 |
Disclosed is a piston (1) for a combustion engine, comprising hub bores (3) that are provided with plain bearing surfaces (5) and are used for accommodating a piston pin. In order to very effectively and inexpensively prevent the piston ...
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WO/2006/058521A1 |
Disclosed is a piston (1) for a combustion engine, comprising an annular grooved reinforcement (4) that is screwed onto an externally threaded (13) collar (12) located in the piston head area via an internal thread (19) which is mounted ...
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WO/2006/054140A1 |
The present invention relates to a method of manufacturing a connecting rod assembly having a stepped small end. The method includes defining a small end (56) of a connecting rod assembly having a terminal end and defining a pin bore (64...
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WO/2006/053489A1 |
The present invention relates to an oil sealing ring that used in internal combustion engine piston or compressor piston, characterized in that an access (3) is provided on the inner circumferential surface of the base ring (6), the axia...
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WO/2006/054142A1 |
The present invention relates to a connecting rod assembly (10) and method of manufacturing same. The method includes defining a small end (56) of a connecting rod having a terminal end (62) and defining a pin bore (64) extending through...
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WO/2006/054769A1 |
[PROBLEMS] To provide a piston of an internal combustion engine and a combination of the piston with three piston rings comprising two pressure rings and one oil ring of the internal combustion engine capable of sufficiently suppressing ...
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WO/2006/049227A1 |
A piston for an automatic transmission includes: (a) a cylindrical wall portion (46a) provided by a first piston member; (b) a bottom wall portion (48a) provided by a second piston member; and (c) an engaging portion at which the first a...
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WO/2006/049512A2 |
A connection between a piston rod (26) and a piston crown (14) of a piston for a linear compressor. The rod (26) has an axial hollow (44) of a size similar to but not larger than an aperture (42) in the crown (14). A pin (45) has a shank...
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WO/2006/038347A1 |
A sealing device (1) which makes it unnecessary to insert a plate spring as a separate part between a metal ring (2) and an attachment mating member (11) such as a clutch plate, thereby making it possible to reduce the number of parts an...
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WO/2006/033121A1 |
The reciprocating machine, in particular a compressor for refrigerating equipment, comprises: a piston (10) which moves in translation inside a cylinder (12) and which is provided with a gudgeon pin (14) arranged transversely with resp...
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WO/2006/017472A2 |
A piston includes a piston body having a longitudinal central axis. A piston head is formed with a plurality of ring grooves and a pair of pin bosses depend from the head and are formed with a pair of pin bores that are centered on a com...
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WO/2006/015324A1 |
The invention provides a seal for sealing between two members (1, 3) which are mutually movable so as to slide relative to each other. One of the members comprises a body (3) with a channel (2) formed therein. The channel (2) has a longi...
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WO/2006/014741A2 |
A piston (10) for diesel engine applications has a piston body cast entirely of one piece of steel and includes a piston head (12) with a combustion bowl (16), a ring belt (24) and an oil cooling gallery (28). A pair of pin bosses (34, 3...
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WO/2006/010450A1 |
The invention relates to a piston rod for a hydraulic cylinder, comprising a metallic base body to which a covering layer consisting of a cobalt-based alloy is applied.
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WO/2005/121608A1 |
A piston ring (3) for a two cycle internal combustion engine has a sealing portion (4) and a piston engaging portion (5) adapted to engage with a ring engaging portion of a piston (200) to restrict radial movement of the sealing portion ...
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WO/2005/113322A1 |
A track frame or undercarriage (12) is made to support a rubber track (10) on suitable guide rollers (13,18,19). A tensioning roller (18) is provided as part of the guide rollers (13,18,19) on the interior of the track (10) and is mounte...
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WO/2005/106292A1 |
For the production of piston pins having a hard peripheral area, a relatively inexpensive chill casting method is used. A chill form having a mold cavity for a piston pin is embedded in a casting mold, cast iron is poured into the mold c...
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WO/2005/089142A2 |
A piston pin (10) includes a tubular body (12) having a cylindrical exterior margin, the exterior margin being shiftably matable with an inside margin of a pin bore (28) of a connecting rod (20), the margin of the pin bore (28) having a ...
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WO/2005/090621A1 |
The invention relates to a piston pin bushing consisting of a brass alloy containing between 30 and 32.2 wt. % zinc, between 1.8 and 2.2 wt. % aluminium, between 1.8 and 2.2 wt. % manganese, between 1.4 and 2.2 wt. % nickel and between 1...
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WO/2005/089328A2 |
A free piston device which is particularly applicable for use with a linear motor for providing acoustic energy to a cryocooler for generating refrigeration at cryogenic temperatures which comprises a time varying clearance seal to count...
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WO/2005/080836A1 |
A sealing arrangement for two relatively movable first and second parts and including a sealing ring positioned in a groove on one of the parts for sealing contact against the other one of the parts, so as to separate a first side of the...
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WO/2005/078321A1 |
Disclosed is a piston pin bearing for pistons of an internal combustion engine, in which a cylindrical piston pin (8) is mounted. The aim of the invention is to create a hub bore shape that is improved compared to prior art in order to s...
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WO/2005/075704A1 |
The invention relates to a method for the production of a local reinforcement of a component (1) of an internal combustion engine, wherein the surface of the component (1) is partially melted in the area to be reinforced. A reinforcing b...
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WO/2005/066481A1 |
A piston (1), wherein the surface roughnesses of the rear surface (10a) of a combustion chamber (10) and the inner wall surface (11a) of a cooling cavity (11) are set to 6.3 S or less (portions a' and b' indicated by chain-double dashed ...
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WO/2005/066474A1 |
A piston arrangement (10) for an internal combustion engine comprises a pair of aligned pistons (14, 16) connected to each other and facing in opposite directions. The pistons are moveable in a reciprocating motion under the impedous of ...
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WO/2005/050068A1 |
A piston assembly for use in a viscous material dispenser is disclosed. The assembly has a main body with an axial bore for receipt of a push rod. The body has a face including an annular recess and an endless lip surrounding the recess....
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WO/2005/050067A2 |
The present invention relates to a connecting rod (24) and piston pin assembly (26) for an internal combustion engine (12) to improve wear of the piston (22)/connecting rod (24) pivot point and reduce deformation of the pin bore (54). To...
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WO/2005/046929A1 |
The invention relates to a method for producing a piston (1) for an internal combustion engine. The inventive method is characterized by producing the base (4) from aluminum by a forging process, casting, by way of a composite casting pr...
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WO/2005/046928A1 |
The invention relates to a method for producing a piston (1) for a combustion engine comprising the following steps: forging an aluminum base body (4) whose one face forms the piston head (5); making a recess (17) having a rectangular cr...
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WO/2005/042953A2 |
The present invention relates to a piston adapted for reciprocal movement within the cylinders of an internal combustion engine. The piston includes a body having a crown formed at the uppermost margins of the body and a skirt, depending...
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WO/2005/024275A1 |
Disclosed is a piston for an internal combustion engine, comprising a shaft part in which two pin holes are arranged for accommodating a pin. According to the invention, the surface of the pin hole is provided with a plurality of crater-...
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WO/2005/024216A1 |
Disclosed is a piston (1) for an internal combustion engine, comprising an essentially cylindrical basis member (4) made of forged aluminum and a ring element (6) that is disposed in the radially outer edge area of the bottom (5) of the ...
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WO/2005/024217A1 |
The invention relates to an aluminum piston (1) for a combustion engine having a ring element (4), which is made of NiResist, is placed in the radially outer edge area of the piston head (3), and which, together with the base body (2), f...
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WO/2005/019631A1 |
A split piston (1), for an internal combustion engine is disclosed, comprising an upper piece (2), connected to a lower piece (3), by means of a screw connection. The screw connection comprises a tubular connector piece (24), mounted on ...
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WO/2004/094808A1 |
A piston for an internal combustion engine, the piston made from integrally molded cast steel. The cast steel has a composition, in weight percent, of (a) not more than 0.8% of C, not more than 3% of Si, not more than 3% of Mn, not more ...
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WO/2004/088113A1 |
A piston (20) for an internal combustion motor has a skirt (22) with a surface (24), which is at least partially polished and thereafter coated with a coating (26) having a hardness of greater than 8 GPa and having a coefficient of frict...
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WO/2004/074716A1 |
The piston comprises three independent elements with a lower element (3), provided with an annular sealing segment (5) in a housing (4), an intermediate element (2), fixed to the lower element (3) to hold the segment (5) and a piston cro...
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WO/2004/074668A1 |
The invention relates to a mulitpart piston, especially for internal combustion engines (1), comprising a lower part and an upper part. The lower part forms a piston shirt with a peripheral bearing surface and an annular section which ex...
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