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Patent Searching and Data


Matches 151 - 200 out of 3,932

Document Document Title
WO/2004/022960A1
A cylinder for an internal combustion engine. A metallic ring (6) surrounds the top of the cylinder. An insulating ring (7) is provided at the top of the cylinder between the metallic ring and cylinder wall. The axial extent of the insul...  
WO/2003/097269A1
Method for manufacturing a jack or hydraulic, pneumatic and/or olepneumatic cylinder of the kind comprising a tubular cylindrical body (4) at the ends thereof a bottom (1) and a head (5) are fastened, inside thereof a piston (2) slides i...  
WO2003008845B1
The invention relates to a sliding surface with areas which are harder in comparison with the base material. Said surface is easy to produce and has a long surface life. The harder areas in comparison with the base material are at least ...  
WO/2003/082514A1
The invention relates to a method for fine machining a cylindrical inner surface which is provided with materials having different degrees of hardness in the axial direction. The inventive method comprises the following steps: the surfac...  
WO/2003/042548A1
A member of a precision friction pair of two members comprising a tubular housing and a plunger adapted to move in said housing, the two members having respective matching friction surfaces. The member has a polymer coating forming its f...  
WO2003000447A3
The aim of the invention is to produce a light-alloy bearing bush with a rough external surface. To achieve this, particles, which are subsequently surrounded in part by the molten metal, are applied to the surface of the casting mould. ...  
WO2003008815A8
An energetic-based piston actuator system imparts a rotational motion in the piston in a manner that increases system efficiency and reliability. A malleable ring mounted about the piston neck obturates upon initiation of the energetic c...  
WO2002099319A3
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 ...  
WO/2003/010417A1
An axial motor (100) driven by opposed pistons/cylinder (101a-105b, 111a-115b) pairs arranged in a circular array about a central axis of the motor (100). The opposed pistons (101a, 101b; 102a, 102b; 103a, 103b; 104a, 104b; 105a, 105b) i...  
WO/2003/008815A1
An energetic-based piston actuator system imparts a rotational motion in the piston in a manner that increases system efficiency and reliability. A malleable ring mounted about the piston neck obturates upon initiation of the energetic c...  
WO/2003/008845A1
The invention relates to a sliding surface with areas which are harder in comparison with the base material. Said surface is easy to produce and has a long surface life. The harder areas in comparison with the base material are at least ...  
WO/2003/000447A2
The aim of the invention is to produce a light-alloy bearing bush with a rough external surface. To achieve this, particles, which are subsequently surrounded in part by the molten metal, are applied to the surface of the casting mould. ...  
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 ...  
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...  
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...  
WO/2002/068844A1
A pump liner (70) comprising a tubular sleeve (74) having an inner sleeve surface formed of a corrosion and abrasion resistant material and an outer, frustoconical sleeve surface and a shell (72) having an outer shell surface and an inne...  
WO/2002/040850A1
ABSTRACT A cylindrical surface (3) is roughed to be prepared for a spray film (11) to be formed thereon, by cutting therein rough undulations (21) in a threaded form, using a cut chip (20) leaving a groove part (21a) of a respective undu...  
WO/2002/010555A1
A steam engine cylinder block comprising a higher pressure cylinder or cylinders and a transfer conduit through which steam exhausted from the higher pressure cylinder is led to drive the lower pressure cylinder, the cylinders being stea...  
WO/2001/032948A1
The invention relates to the production of machine components, especially piston rings (3) and/or pistons and/or cylinder liners of engines, preferably two-stroke great diesel engines, that are provided with at least one sliding surfaces...  
WO/2001/002715A1
An external combustion engine (1) comprising pressure vessel means defining a tubular working chamber (3) having spaced apart first and second ends and including first wall means (11), adjacent the first end of the chamber, heated by hea...  
WO/2001/002712A1
A sliding member, wherein a protruded part extending in a direction crossing a sliding direction is provided on at least one of the sliding surfaces of sliding members slid with each other, and fine dimples are provided in the surfaces o...  
WO/2000/049200A1
The invention relates to a method and a device for producing wear-resistant tribological cylinder running surfaces (16) for pistons running in the cylinders (20) of a crankcase of an internal combustion engine, comprising a laser (10) an...  
WO/2000/040849A1
The invention relates to a reciprocating piston engine with at least one cylinder whose cylinder liner (2) is provided with at least one groove-shaped oil pocket (8) in the area of the running surface (4) of said liner (2), whereby the r...  
WO/2000/040850A1
The invention relates to a reciprocating piston engine comprising at least one cylinder whose cylinder liner (2) is provided with at least one groove (9) which forms an oil pocket (8) and which is situated in the area of the running surf...  
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 ...  
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...  
WO/1999/046521A1
The invention concerns a method for making a metal cylinder sleeve (6) to be used in an internal combustion engine cylinder block, said cylinder sleeve (6) internal surface having a surface structure. In order to produce said cylinder sl...  
WO/1999/014518A1
A cylinder liner for diesel or Otto internal combustion engines is made of an AlSi type aluminium alloy, with 12 to 40 % Si, for example, the size range of the particles of Si or intermetallic phases lying from 1 to 20 $g(m)m. The cylind...  
WO/1999/004140A1
A volumetric-displacement-maximizing device includes a molded slider (12) bidirectionally movable within an elongate cavity (14) formed within a molded body (16). The body (16) also includes a port structure (18) with an output port (18a...  
WO/1998/053192A1
A cylinder liner (1) for an internal combustion engine of the diesel type has at least one inwardly open oil groove with external supply of lubricating oil and at least a first and a second group of inwardly open recesses, each group hav...  
WO/1998/025017A1
A cylinder element for an internal combustion engine of the diesel type, the maximum combustion pressure of which at full load exceeds 100 bar, includes two layers of Al-bronze sprayed-on on top of each other, the outer layer of which be...  
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...  
WO/1997/029287A1
The invention relates to a screw-on pressure medium-actuated working cylinder with closure components for coupling the cylinder tube. The aim of the invention is to develop a screw-on pressure medium-operated working cylinder which remai...  
WO/1996/030159A1
A cylinder liner (1) for a piston engine, such as a large two-stroke crosshead engine, has a running surface for the piston rings on the inner surface (7) of the liner. The cylinder liner has an internal diameter in the interval from 25 ...  
WO/1995/026070A1
An improved mechanical transducer of the type having a body (14) reciprocating in a chamber (3), the body being linked to a housing by a linkage (15) including an axially compliant spring. An anti-friction fluid bearing applies a lateral...  
WO/1995/021994A1
A cylinder liner (1) for an internal combustion engine is spray-coated on its cylindrical inner surface with a hard wearing layer (7), and after the spraying and a possible trueing of this hard wearing layer, the inner surface is coated ...  
WO/1995/021690A1
A high-pressure and a method for high-pressure treatment of substances. The high-pressure press comprises a high-pressure cylinder consisting of a number of concentrically arranged cylinder elements (1, 2, 3). The cylinder elements (1, 2...  
WO/1995/002025A1
A solid film lubricant system for protecting metal wear interfaces subject to high temperatures and wet lubrications, comprising an oil-attracting solid lubricant mixture (A) with at least two elements (A1, A2, A3) selected from the grou...  
WO/1994/011612A1
In a process for the pressure-resistant plastic coating of cylinder surfaces in piston-cylinder units, at least the cylindrical surfaces against which a piston ring is to be applied are to be coated after coarse pre-machining with an ade...  
WO/1994/008152A1
The disclosed cover comprises a substantially cylindrical hollow body (2), an elastic compensating membrane (3) and a compensating spring (16). The hollow body (2) has at one of its ends (C_) an inlet to which is coupled the functional e...  
WO/1994/000706A1
A fluid pressure cylinder comprising a cylinder tube (4, 31) and an end plate (2, 3, 30) being mounted into each side thereof, the end plates (2, 3, 30) being produced from a synthetic material are positioned inside the cylinder tube (4,...  
WO/1993/023675A1
A composite cylinder constructed from a cylindrical liner (12) having an outer surface (18) which is dome shaped adjacent each end. A plurality of layers (30) of resin impregnated carbon filaments are wound on the outer surface (18) of t...  
WO/1992/004562A2
A sealing device placed between a cylinder head (1) and a cylinder (2) and composed of a thin detachable cylindrical lining (7) fitted in a bore formed in a block (4), comprises a raised portion (h) before the cylinder head is adjusted a...  
WO/1992/004562A1
A sealing device placed between a cylinder head (1) and a cylinder (2) and composed of a thin detachable cylindrical lining (7) fitted in a bore formed in a block (4), comprises a raised portion (h) before the cylinder head is adjusted a...  
WO/1991/014117A1
A hollow cylinder characterized by comprising end plates and a hollow cylindrical member (18) formed of a plurality of interengaging modules (1), preferably of extruded metal construction, each extending parallel to the axis of said cyli...  
WO/1991/005187A1
A fastening device for actuating cylinders with longitudinal stringers (2, 3) extending axially along a cylinder tube (1). A fastening yoke, e.g. comprising two halves (6a, 6b), is clampable with the aid of at least one clamping screw (8...  
WO/1990/015237A1
A cylinder liner for the internal-combustion engine, in which a deck of the cylinder block (1) into which a mid-stop liner (4) is inserted is divided into two parts (2, 3) and sealing of cooling water is conducted at points (5, 7 and 6, ...  
WO/1990/006215A1
A perforator has a perforating disk (10) rotatively mounted in an U-shaped support (13). The support (13) can be moved in and out of the path of the parts to be perforated by means of a piston-cylinder (23) unit movable in either directi...  
WO/1989/012769A1
The invention relates to a working cylinder comprising a cylinder unit with a front end part (4), a rear end part (15) and a cylinder tube (12) connecting these end parts, a piston (5) movable in the cylinder tube (12) and a piston rod (...  
WO/1989/009712A1
The hydraulic cylinder includes a main body (10a) defining a central axial bore (10b), in which a piston is mounted for axial movement, and an external appendage (10k) on said main body. The main body (10a) has a cylindrical wall thickne...  

Matches 151 - 200 out of 3,932