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WO/2000/045038A1 |
The invention aims at reducing the weight of a box piston having a running surface, the width of which in the pressure side is different from the width of the running surface on the counterpressure side. To this end, the piston has at le...
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WO/2000/043661A1 |
The invention relates to a piston with a lower part produced from forged steel. In terms of forging technique, it is difficult to produce such lower parts that are provided with long shafts. The aim of the invention is to simplify the pr...
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WO2000034696B1 |
An engine cylinder piston connecting rod subassembly, for use in an engine, includes a piston (53), a piston pin (52) and a connecting rod (51). The connecting rod has a piston end portion with a piston pin bore (62). The piston pin is i...
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WO/2000/037778A1 |
A mounting assembly (3) for connection of a drive mechanism to an engine (2). The engine (2) includes pistons, an engine block (5) and an output shaft (80). The assembly (3) includes a drive mechanism, connecting rods (4) and a pedestal ...
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WO/2000/034681A1 |
A piston or plunger comprises a piston body (10) and a sealing member (17). The piston body (10) is preferably made from metal by moulding, such as casting or pressure moulding and sintering. The sealing member (17) is made from a thermo...
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WO/2000/034682A1 |
A piston or plunger comprises a piston body (10), preferably made from metal, and a sleeve or sealing member (19) made from a deformable material, such as polytetrafluoroethylene (PTFE). The sealing member (19) is mounted on the piston b...
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WO/2000/032336A1 |
A method of manufacturing a piston (12) and connecting rod (14) assembly (10) comprises mounting a small end portion (16) of the connecting rod (14) in a casting die (30). The method also comprises casting metal in said die (30) to form ...
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WO/2000/031443A2 |
The present invention relates to a connecting rod-piston assembly mainly intended for internal combustion engines, wherein said assembly is used for increasing the centre-to-centre distance of the connecting rod without increasing the di...
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WO/2000/029691A1 |
The invention relates to a variably mountable profiled bar (10, 10') for use as a column, bracket, tie-bar, strut or the like for devices (30). Said profiled bar (10, 10') consists of aluminum and has two anchoring grooves (14) with a gr...
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WO/2000/025012A1 |
A carbon piston engine having a lower side (112) that forms a domed surface, preferably an ellipsoid surface, in the area between the enlargements of the hub (151) irrespective of the design of the lower side of the piston head, whereby ...
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WO/2000/022318A1 |
The invention relates to a piston-cylinder arrangement, especially a shock absorber piston, comprising a piston body (6) fitted with at least two peripheral webs (10) on its peripheral surface, said webs limiting a groove (11) and also i...
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WO/2000/022319A1 |
The invention relates to a piston for a piston-cylinder arrangement, especially a shock absorber piston, comprising a piston body (6) that is fitted with at least one peripheral web (10) on its peripheral surface, wherein a collar-shaped...
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WO/2000/022317A1 |
The invention relates to a piston for a piston-cylinder arrangement, especially a shock absorber piston, comprising a piston body (6) fitted with a peripheral web (12) protruding from the peripheral surface in a section adjacent to the e...
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WO/2000/022289A1 |
A piston for an internal combustion engine, comprising a piston head (2) and at least one cooling chamber (4) that can be supplied with oil and is arranged underneath the head (2) of the piston, whereby the lower limit of the cooling cha...
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WO/2000/020747A1 |
The invention relates to a piston (1) comprising a cooling channel (12), a piston base body (2) made of forged steel. The inventive piston also comprises a box-type skirt (11), bosses and boss supports, connecting walls (9) between the b...
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WO/2000/011377A1 |
The invention relates to a light metal piston for internal combustion engines, with bearing bushes (4) placed in piston pin bores (2) of the pin hubs for the piston pin through which said piston is drivingly connected to the motor drive ...
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WO/2000/010937A1 |
The invention relates to a piston consisting of finest grain carbon with a bending strength of at least 100 MPa, a bending strain > 0.8 %, an average interlayer distance c/2 < 0,35 nm, an average crystallite size in direction c > 5 nm an...
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WO/2000/006877A1 |
A piston (20) and connecting rod assembly includes a piston crown (24), a piston skirt (26), a connecting rod (22), and a bearing insert (50). The piston skirt (26) is a component separate from the piston crown (24) and is connected to t...
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WO/2000/000761A1 |
The invention relates to a piston-pin bushing (20b) which has a sufficiently long service life when subjected to high piston pressures. Said piston-pin bushing (20b) has an opening (31) in each of the transition areas (30a, 30b). The are...
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WO/1999/063284A1 |
A driven armature cylinder and piston link with reduced side loads and cross-bearing loads which uses a pin (20) inserted through a dual coaxial tapered through bore (22) in the drive piston (10) to secure the drive piston (10) to a disp...
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WO/1999/058839A1 |
The invention relates to a guide arrangement, especially for a piston-cylinder arrangement, comprising a cylinder (3) in which a bearing section of a piston (2) can be displaced axially along its inner bore (5) configured as a piston bea...
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WO/1999/056041A1 |
Piston with support insert (1) for the cylinders of internal combustion engines or compressors comprising a piston (2), a connecting rod joined by a pin (3) to the piston, and a support insert (1) is provided between the piston (2) and t...
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WO/1999/050576A1 |
The invention relates to a coupling between a piston and a connecting rod, which is achieved by means of a clamping ring in order to transmit tractive forces. The aim of the invention is to avoid deformation of the clamping ring when the...
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WO/1999/033767A1 |
The invention concerns a method which consists in producing a fibrous structure by layering fibrous texture strata and mutually linking the strata by needle-bonding, such that the layered fibre strata extend substantially in orthogonal f...
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WO/1999/031360A1 |
The invention relates to a two stroke spark ignition engine with separate lubrication, especially those used in hand-held working tools with fast running motors, wherein the piston (10) has recesses to receive the motor oil. Said motor i...
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WO/1999/028660A1 |
The invention relates to a device for pivotally connecting a piston and connecting rod (10) to a reciprocating engine. The device comprises a piston-fixed connecting element (6) with a supporting point (9) for a connecting rod eye (11). ...
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WO/1999/027279A1 |
The invention concerns a master cylinder (1) for motor vehicle hydraulic clutch system, comprising a housing (2) containing a pressure chamber (3), and a housing (6) wherein a piston (8) is guided sliding. A piston rod (10) is fixed pivo...
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WO/1999/020806A1 |
A copper-base sliding material comprising a matrix made from sintered copper or alloy thereof and, dispersed therein, particles of A1N, Al¿2?O¿3?, NiB, Fe¿2?B, SiC, TiC, WC, Si¿3?N¿4?, Fe¿3?P, Fe¿2?P and/or Fe¿3?B, wherein the pa...
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WO/1998/053193A1 |
Disclosed is a clamping device for a piston to be mounted, said clamping device being actuated mainly in the direction of pressure/counter-pressure, whereby the whole initial pressure is increased, resulting in greater anti-loosening saf...
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WO/1998/053194A1 |
A Stirling cycle machine has a piston (11) which reciprocates in a cylinder (12) and defines a hot chamber (23) between the piston (11) and end of cylinder (12). Heat exchange for the working fluid in the hot chamber (23) is effected whi...
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WO/1998/044280A1 |
A gudgeon pin (14) is held in engagement with a bearing seat situated inside a piston (16) by retaining means in the form of a pincer element (30) with a base portion (32) fixed to the end wall (20) of the piston (16) and with two pairs ...
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WO/1998/041749A1 |
A piston (1) for a two-stroke crosshead engine has a number of ring grooves (2-4) for piston rings. At at least some of the rings the piston has pressure relief passages the axes of which avoid hitting the piston ring (14) at extension t...
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WO/1998/039584A1 |
The invention relates to a piston pressure device with a sealing device (10) to seal areas of differing pressure. Said sealing device consists of a first elastomer component (12) and a second component made of material which is plastical...
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WO/1998/036194A1 |
Disclosed is a connecting rod and piston unit, intended for use in internal combustion engines. It provides for increased center-to-center distance of the connecting rod without increasing the frame of the unit, as well as a reduced rock...
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WO/1998/031929A1 |
Piston for an internal combustion engine. The piston (2) has a top ring land with a diameter differential of at least 0,3 % of the major diameter (D1) to eliminate the risk of cylinder polishing.
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WO/1998/027328A1 |
A ring-shaped plate member (6) of a three-layer structure having an aluminium alloy material (8) disposed on the opposite sides of a copper alloy material (7) is formed by casting in the outer peripheral part (2) of a piston (1) made of ...
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WO/1998/019067A1 |
Electric compressor comprising a piston provided with a connecting rod (4), an annular element arranged at an end portion thereof, a gudgeon pin, an elastic means (6) that elastically locks said gudgeon pin in the piston. The connecting ...
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WO/1998/019084A1 |
Piston rings and/or a piston in a two-stroke crosshead engine are provided on their radial outer surfaces with a running-in layer (32, 37, 40, 42), which has a thickness of at least 0.1 mm in the radial direction and is made of a materia...
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WO/1998/017892A1 |
A two part connector (10) comprises a pair of support members (15, 26) defining respective bores (14, 25) supporting respective pistons (11, 22) for movement along respective parallel axes. Pre-loaded springs (21, 32) react between the s...
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WO/1998/017930A1 |
A metal piston (15, 16) has a skirt (17, 18) which engages a resilient seal (19, 20) mounted within a bore (13, 14) of a metal cylinder (11, 12). The skirt (17, 18) has a thin walled portion (34, 35) which is resiliently flexible and is ...
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WO/1998/016740A1 |
The invention concerns a compressor comprising a piston capable of moving in alternating rectilinear movement in a cylinder with an axis inclined relative to the vertical plane, characterised in that the piston is made of a non-magnetic ...
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WO/1998/016731A1 |
The invention concerns a built-up piston (1) with an upper part (2) made of an iron material and a lower part (3) made of an aluminium alloy. The object of the invention is to increase the loading capacity of the bosses. To that end, the...
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WO/1998/014722A1 |
The invention relates to a piston assembly of a hydraulic radial piston-type machine, an essential characteristic thereof being the arrangement of a rolling element (2) in a piston head. This means that the portion of contact surface of ...
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WO/1998/014697A1 |
A piston for an internal combustion engine, in particular a big marine diesel engine, and of the type which as power-transferring member between piston and piston rod has an annular rib integral with the piston head, in which, in an annu...
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WO/1998/012434A1 |
A piston pump delivering hydraulic liquid, especially for vehicle braking systems, with a step piston which can be displaced axially in a pump compartment (11) .In order to lower production costs of the step piston (12) said piston is ma...
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WO/1997/048895A1 |
A piston for an internal combustion engine, for high speed Diesel engines used in passenger or light load cars, comprising a single piece made from an alloy with a density which is lower than about 3g/cm3 and a yield stress which is high...
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WO/1997/047871A1 |
The present invention relates to a connecting-rod and piston assembly that comprises a cylinder and a piston, said piston comprising a head, a skirt and a support element. The piston is attached to the connecting rod by a pin, said conne...
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WO/1997/042406A1 |
A cylinder liner (1) for an internal combustion engine has a piston (5) which is movable in the liner in the longitudinal direction between a bottom dead centre at which scavenging air ports (8) in the wall of the cylinder liner are expo...
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WO/1997/039261A1 |
A piston for use on endothermic motors, compressors and pumps, featuring a configuration formed by several parts (2, 3) for the assembly of entire seal rings (10), as well as the eventual use of optimal materials for each one of its spec...
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WO/1997/031202A1 |
An aluminum piston for an internal combustion engine comprises a cylindrical-shaped piston skirt portion in slide contact with a cylinder wall of an internal combustion engine, a cylindrical-shaped intermediate portion extending from the...
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