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WO/2004/074695A2 |
A system and method (fig.5) for monitoring clinched joints (fig.2) senses lateral displacement of die segments during formation of a joint, which depends on joint button diameter. The system determines whether a joint is acceptable by co...
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WO/2004/070238A2 |
A wrist pin for a heavy-duty piston assembly has a body with an axis of rotation and a generally cylindrical outer surface. The outer surface is adapted for pivotal connection to both a pair of laterally spaced pin bores and a small end ...
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WO/2004/067248A2 |
A tenter clip (11) has a jaw pivot shaft (22) having a pair of molded bearing surfaces (34, 36) of superior strength, wear resistance and stability under high temperature operating conditions. The method for manufacture of the jaw pivot ...
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WO/2004/067940A1 |
A mechanism for sealing gaps between a piston assembly and a cylinder for an internal combustion engine is provided. A sealing member inserted into an upper wall of a groove holding the oil ring to block a gap between them. The oil ring ...
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WO/2004/051118A1 |
The invention relates to a piston (1) for an internal combustion engine comprising piston-pin bores (5, 6), into which lubrication grooves (8, 9) that run around the nadir and equator zones of said bores are machined. The aim of the inve...
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WO/2004/051119A1 |
The invention relates to a piston-pin boss (18) of a piston (6) for an internal combustion engine, comprising a piston-pin bore (1) for receiving a piston pin. To improve the passage of oil and to form an oil reservoir, the interior surf...
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WO/2004/044397A2 |
A monobloc piston assembly has at least two parts fixedly joined together forming a piston body having an oil cooling gallery. The oil cooling gallery is defined by an upper wall, a lower wall, and a pair of radially spaced inner and out...
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WO/2004/044443A1 |
A wrist pin is provided comprising a generally cylindrical body having a longitudinal axis. The body is fabricated of at least two metallic parts joined to one another at a weld joint. in joining the two parts to one another, a pair of l...
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WO/2004/025145A1 |
The invention relates to gudgeon pin bushes which find application in highly-stressed engines, with the problem of a tendency to pit, in particular in the middle regions (with relation to the radial axis of the bush), on starting the mot...
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WO/2004/025146A1 |
Preferred rod/piston assemblies (50, 50', 150) comprise unitary rod members (52, 52', 152) and compression rings (54, 54', 154). In accordance with one preferred embodiment (50), the unitary rod member (52) comprises a connecting rod por...
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WO/2004/008006A1 |
The invention relates to a piston (1) for an internal combustion engine, which comprises two boss bores (2, 4) that have respective outer areas (5, 5') with an oval cross-section that points on one side in the direction of the piston hea...
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WO/2004/001215A1 |
A reciprocating engine (1), comprising a cylinder (2), a piston (3) reciprocatingly moving in X−direction inside the cylinder (2), a connecting rod (5) rotatably connected, at a small end part (4), to the piston (3) through a piston pi...
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WO/2003/106869A2 |
The invention concerns a joint designed to be used at high temperature. It mainly consists of a central core in flexible graphite (10) with its shape being maintained by two metal cups (12) not in contact with each other. The whole assem...
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WO/2003/100238A1 |
The invention relates to a piston for internal combustion engines comprising a lower part which forms the shaft area and also comprising a piston upper part which is connected thereto by means of expandable screws and which forms the bot...
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WO/2003/098078A1 |
The invention relates to a piston-pin bearing for an internal combustion engine wherein a cylindrical piston pin (8) is mounted. The inventive piston-pin bearing is provided with an improved form of hub bore in comparison with prior art,...
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WO/2003/098003A1 |
A piston for an internal combustion engine including a skirt (32) and a crown (34). The skirt includes a top portion (48) and a cylindrically-shaped wall portion (50) extending from the top portion defining a skirt cavity (82). The top p...
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WO/2003/098022A1 |
The invention relates to a cooled piston (1) for an internal combustion engine comprising a cooling duct (2). This cooling duct encircles in an annular manner inside the piston head at the height of the ring part and is closed at its end...
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WO/2003/091478A1 |
Chemical surface treatment method of piston for decreasing surface friction force thereof, comprises the steps of placing the piston in a vessel, pouring automobile oil into the vessel to soak the piston, and raising the oil temperature ...
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WO/2003/091562A1 |
The invention relates to a cooled piston (1) consisting of two parts, r an internal combustion engine, comprising a piston upper part (2) containing piston ring grooves and piston pin hubs and a piston shaft (3) exclusively connected in ...
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WO/2003/081094A1 |
Problems with maintaining the effectiveness of the seal whilst passing containers into contained locations, due to the different sizes of containers which need to be passed through, are addressed by the seal assembly (10). The seal assem...
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WO/2003/076786A1 |
The invention relates to a multi-part, cooled piston for an internal combustion engine, consisting of a one-piece upper piston part, which comprises a combustion recess and a ring wall with a ring belt and a one-piece lower piston part, ...
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WO/2003/062622A1 |
The invention relates to a method for providing a component of a large machine, especially a piston head or an outlet valve head of a large two-stroke diesel engine, with a protective coating (4) which is applied to the corresponding sur...
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WO/2003/060355A1 |
A crosshead piston assembly (10) has a piston with an upper head portion (22) and a lower stem portion (24) formed with a pin bore (48). The pin bore has a pair of lower, laterally spaced mounting ears (52) presenting a bearing support s...
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WO/2003/056216A1 |
The invention relates to a brush seal for sealing components (10), which can move in relation to one another, comprising a bristle-supporting sealing part (12). This sealing part is held by means of a correspondingly shaped supporting pl...
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WO/2003/036045A1 |
A monobloc piston has at least two steel parts (13, 15) welded together to define an inner cooling gallery (32). An outer ring belt (14) is spaced from an inner annular support wall (34) and is joined by a combustion bowl (28) and a lowe...
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WO/2003/029702A1 |
The invention relates to light parts for in-line four-stroke engines comprising pistons, bolts, connecting rods and a crankshaft. Said parts can be used to enhance the performance of any in-line four-stroke Diesel or Otto engine used in ...
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WO/2003/029701A1 |
The invention relates to a complement of light parts for in-line four-stroke engines comprising pistons, bolts, connecting rods, bolt rings and a crankshaft. Said parts can be used to enhance the performance of any in-line four-stroke Di...
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WO/2003/025359A1 |
A piston (10) for diesel engines includes a piston body (12) formed with a closed oil gallery (42) and a pair of pin bosses (44) having axially aligned pin bores (58) whose surfaces (60) are spaced from one another about their circumfere...
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WO/2003/025376A1 |
The invention relates to a method for producing a piston or piston head with a combustion relief (6) for an internal combustion engine. The aim of the invention is to easily and economically produce pistons having a reduced tendency to s...
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WO/2003/021137A2 |
The invention relates to a cooled ring carrier that is cast into a piston for internal combustion engines. According to the invention, the zone of the ring carrier facing the cooling channel is coated, thereby preventing air from escapin...
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WO/2003/019049A1 |
A steel monobloc piston for diesel engines is formed with a relatively short piston skirt whose lower edge resides below the axis of the pin bores of the piston, but located at or above a lowest tangent point of the pin bores. The piston...
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WO/2003/015980A1 |
The invention relates to a tumbler-shaped hydraulic piston (10) consisting of rolled sheet metal, comprising an open end (12), a lateral wall (16) with a cylindrical external surface (18) and an internal surface (22), in addition to a pi...
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WO/2003/011497A1 |
The invention relates to a metal ring assembly having a more or less U-shaped cross-section. The free ends of the flanges of said U are supported on and connected to two annular seats which are disposed on the internal surface of the sup...
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WO/2003/010446A1 |
A mounting arrangement for the piston of a reciprocating hermetic compressor, comprising: a cylinder (1), inside which is defined a compression chamber (C); and a piston (10) provided with a pair of radial holes (11), each lodging and re...
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WO2002088530A9 |
The invention relates to a scotch yoke fluid device (10). The scotch yoke fluid device (10) has a crank (11) with a big end having an axis (14) which orbits around a main axis (15) for the crank (11). Connecting means (13) are mounted on...
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WO/2002/103228A1 |
The present invention relates to a press which comprises a pressure vessel having an internal closure. The internal closure comprises a cover, a number of elements for transmitting forces in pressurised operation between the cover and th...
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WO/2002/099319A2 |
The invention relates to sliding pairings for machine parts that are subjected to the action of highly pressurized and high-temperature steam, preferably for piston-cylinder assemblies of steam engines. The sliding pairings consist of a ...
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WO/2002/077457A1 |
A piston-chamber combination comprising an elongate chamber which is bounded by an inner chamber wall and comprising an elastically deformable piston comprising a container in said chamber to be sealingly movable relative to said chamber...
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WO/2002/076672A1 |
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 (8) and a recess (7) between the piston ring zone and the box-shaped piston body. The method comprise...
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WO/2002/072907A1 |
The invention relates to a method and device for the production of coated bores, whereby the bore wall is plasma sprayed with a coating material after formation of the bore. According to the invention, an adequate resistance of the coati...
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WO/2002/070927A1 |
A method of manufacturing a piston for heavy-duty diesel engine applications comprises forming a piston body having a pair of pin bosses, and bond separately formed skirt portions to the pin bosses. The resultant piston has the separatel...
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WO/2002/064963A1 |
The aim of the invention is to produce a multi-piece piston with a sufficient shaft length in a simple manner. To achieve this, the lower part (1) has the following characteristics: - it consists of two halves (2,3) that have been welded...
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WO/2002/055912A1 |
The invention relates to a method for producing a ring support (1) with a sheet metal cooling channel welded thereon (5), which is transfused later with an aluminium melt for producing a piston. The aim of the invention is to improve the...
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WO/2002/055911A2 |
According to the invention, the piston (13) is suddenly driven out due to the action of the compressed air that is conducted into the cylinder (12), whereby displacing, via the piston rod (11) and the punch (10), the impact pin (4) again...
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WO2001011237A9 |
A hydraulic pump includes a housing, at least two pistons mounted to the housing to rotate relative to the housing, and a transition arm coupled to each of the pistons to rotate therewith. The transition arm is set at a predetermined ang...
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WO/2002/048582A1 |
A piston carrier (46) supports an elongated, slender piston rod (2) for reciprocation in a pump cylinder (30) to pump fluid into and out of the cylinder (30). The piston rod (12) is made of a material such as sapphire or zircon and has a...
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WO/2002/033291A1 |
A multi-axially forged mono-bloc piston includes a lower crown part (14) forged of steel and including a pair of pin bosses (20) and an integral skirt (24) formed as one piece with the pin bosses . The lower crown part is friction welded...
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WO/2002/031336A1 |
An engine piston (10) has a crown portion (12) generated about a longitudinal piston axis (14) and, extending axially from the crown, a pair of gudgeon pin bosses (26, 28) defining a pin axis (30) and spaced apart at opposite sides of an...
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WO/2002/030601A1 |
A method of forming a low-friction, helically ridged skirt surface of an engine piston 30 (Fif 2(a)) comprises cutting a continuous groove (40) in a piston body rotating about axis (34) so that adjacent groove turns intersect as ridges (...
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WO/2002/022192A1 |
A gasket capable of providing an excellent slidability without adding lubricant and holding a sealability and installed slidably in the outer tube of a syringe, wherein at least the outer periphery of a gasket body is covered with a resi...
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