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WO/2013/064228A1 |
The invention relates to an internal combustion engine having at least one cylinder (1), in the cylinder chamber (3) of which a piston is arranged that is axially movable between an upper reversal point and a lower reversal point, and ha...
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WO/2013/060529A1 |
The invention relates to a cylinder liner (2) of a cylinder of an internal combustion engine, in which cylinder liner an oscillating piston (3) is guided on a running surface (4), wherein the cylinder liner (2) is fixed vertically by mea...
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WO/2013/058602A2 |
Although a pressure is boosted only one time in a hydraulic pressure booster cylinder for controlling and pressure-boosting working fluid by using air pressure according to the related art, the present invention may solve the above-descr...
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WO/2013/053098A1 |
Disclosed are a delivery cylinder and a manufacturing method thereof, and pumping equipment comprising same. The delivery cylinder preparation method comprises the following steps: forming a first intermediate cylinder body by machining;...
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WO/2013/040770A1 |
Disclosed in the present invention is a connecting structure of the functional component of the driving cylinder. The functional component is provided with a cylinder bottom part (1), a cylinder barrel (2) and a guide sleeve (3). The cyl...
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WO/2013/038788A1 |
A thermal spray material which is capable of reducing unevenness of coating film hardness in a thermal spray coating film, thereby improving the coating film hardness and achieving excellent separation resistance; a thermal spray coating...
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WO/2013/026508A1 |
A piston - chamber combination comprising a chamber (186) which is bounded by an inner chamber wall (185) and comprising a piston inside said chamber to be engagingly movable relative to said chamber wall at least between a first longitu...
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WO/2012/173550A1 |
A device for damping of a piston (3) being connected to a piston rod (4) and being moveable to and fro inside a cylinder housing (2) of a cylinder, including a damping recess (8) being associated with the piston and a damping protrusion ...
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WO/2012/151709A1 |
The invention relates to an operating cylinder (1) which comprises a cylinder liner (3) having one or more annular grooves (4) incorporated into it, corresponding retainer rings (5) or retainer ring segments (5a) fitting into said groove...
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WO/2012/125097A1 |
A combustion engine includes a combustion engine piston cylinder including an interior wall surface, the interior wall surface having a textured pattern comprising a plurality of texture elements over at least part of an axial length of ...
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WO/2012/106791A1 |
The present invention aims at solving the problem of providing coatings for engine components (engine block or fixed or removable sleeves) with at least one cylindrical cavity and made mainly of iron or aluminium, which are to be provide...
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WO/2012/095215A1 |
The invention relates to a method for roughening and thermally coating a surface (1), especially a cylinder running surface of an internal combustion engine, the roughening being the preparation of the surface (1) for thermally coating t...
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WO/2012/085145A1 |
The invention relates to a device including a piston (1) which slides inside a hollow cylinder (2), said piston being provided with a guide strip (3) on at least one of the surfaces thereof that contacts the inner surface (4) of the cyli...
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WO/2012/076292A1 |
The invention relates to a cylinder made of metallic material or of plastic for a reciprocating piston machine having a crank drive, in particular having a crank loop drive, having at least one cylinder casing (1) that has a cylinder bor...
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WO/2012/034737A1 |
In a pump (10), in particular for a vehicle brake system, having a pump piston (16) which is guided displaceably in a pump cylinder (32), according to the invention the pump cylinder (32) is produced by means of deep drawing.
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WO/2012/017590A1 |
This reciprocating engine (1) is such that high-temperature high-pressure combustion gas (12) above a piston (2) is introduced during the initial period of an expansion step from a gas path hole (23) provided at the upper portion (22) on...
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WO/2012/008890A1 |
A manufacturing method for providing a low-friction surface comprises providing (210) of a mechanical element. A tool is mechanically rubbed (212) against a surface of the mechanical element. A process liquid is provided (214) to a conta...
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WO/2011/151085A1 |
The invention relates to a cylinder housing, in particular a pump cylinder housing, with a hollow cylinder (1) and with an end-side cover part (2, 2'), characterised by a threaded sleeve (14, 14') which may be fixed on the outside on the...
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WO/2011/135955A1 |
The disclosed cylinder device is capable of maintaining an excellent connection state, and has a tubular cylinder (11), an end member (12) disposed at the end of the cylinder (11), and a welded portion (13) fixed by welding one end of th...
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WO/2011/114888A1 |
Disclosed is a cylinder liner having a high bonding strength to a cylinder block. Further disclosed is a method for producing same. The cylinder liner uses a silicon-aluminum alloy as a material; a plurality of protrusions are formed on ...
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WO/2011/051008A1 |
The invention relates to a sliding element, in particular a piston ring, preferably made of cast iron or steel, comprising a coating having a CrN, an Me(CxNy), and a DLC layer extending from the inside to the outside, wherein the DLC lay...
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WO/2011/048864A1 |
Provided is a piston which reduces the amount of the air-fuel mixture to be discharged unburned and prevents piston rings from conglutinating due to heat. In the piston (2) on the outer circumferential surface of which a plurality of cir...
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WO/2011/012786A1 |
The invention relates to a cylinder sleeve for lining the cylindrical wall of an internal combustion engine cylinder, said sleeve being made of flake graphite cast iron having a pearlitic matrix including carbon, silicon, manganese, phos...
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WO/2010/151695A2 |
In some aspects, there is provided an apparatus. The apparatus may include a cylinder for a reciprocating steam engine, wherein the cylinder further comprises a cylinder ring. The cylinder ring may include a face and a heel, wherein the ...
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WO/2010/126965A2 |
A method and apparatus for maintaining a seal between a cylinder and a fluid manifold for a reciprocating force delivery device is disclosed. A cylinder retention assembly comprises a rotatable member with a variable topography surface. ...
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WO/2010/115010A2 |
A piston and cylinder assembly suitable for use in positive displacement machines (10) and capable of minimizing power losses resulting from friction and fluid leakage over a range of operating parameters. The piston (14) is reciprocably...
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WO/2010/055764A1 |
A cylinder tube (11) for a hydraulic cylinder (10) is provided with welding beads (22a, 22b) functioning as rigidity change sections in which cross-sectional rigidity changes. The rigidity change sections are located, in a cross-section...
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WO/2010/044216A1 |
Disclosed is a sliding member having a pit (122A) formed on an inner circumferential surface (121) that slides with respect to an opposing member. Since the pit (122A) differs from the cross-hatch pattern of the open cross-sectional shap...
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WO/2010/043669A1 |
In a method for coating a sliding element, in particular a piston ring or a cylinder liner of an internal combustion engine, DLC phases are embedded into a hard material layer as said hard material layer is deposited. A sliding element,...
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WO/2010/015229A1 |
The invention relates to a method for producing for example a cylindrical surface (Fig. 10) which has a suitable surface structure of a predetermined geometry for applying material by thermal spraying. According to said method, a geometr...
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WO/2009/106201A1 |
The invention relates to a method for coating a thermally and tribologically highly stressed component of an internal combustion engine with a DLC layer, characterized in that a first DLC layer is first applied to the component by means ...
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WO/2009/069703A1 |
This aims to provide a cylinder structure capable of reliably reducing, if a piston ring having linear expansion characteristics to follow the linear expansion of a cylinder liner made of an aluminum alloy is used, the damage due to the ...
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WO/2009/060672A1 |
Provided is a cylinder block which has a simple constitution and an enhanced rigidity, includes a liner and a water jacket of closed deck structure, and which can be easily molded at a low cost. The cylinder block (1) comprises a liner (...
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WO/2009/054402A1 |
In an abrasion resistance reinforcing method of a sliding structure consisting of at least a pair of components in sliding relation and provided with a seal member on the sliding surface of one component, an abrasion resistant metal plat...
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WO/2009/044824A1 |
A cylinder in which friction between the inner wall surface of the cylinder and piston rings occurring when a piston reciprocates is reduced in a region in which the piston rings slide on the inner wall surface. The cylinder, in which th...
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WO/2009/026879A1 |
The invention relates to a clutch disengagement system, wherein at least one cylinder has a sealing groove for a dynamic seal, the contact area of said groove being reduced in relation to a smooth surface.
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WO/2009/014107A1 |
A horning method for a cylinder liner formed by impregnating a ferrous porous sintered body with an Al alloy from the outer circumferential side of the sintered body. The method is characterized by consisting of the first grinding step o...
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WO/2008/124464A1 |
A powder metal cylinder liner with a ratio of the length to the wall thickness greater than 12 made of at least two end to end cylinder liner pieces with each piece having a ratio of the length to the wall thickness of less than 20. The ...
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WO/2008/116556A1 |
The invention relates to a diecasting tool for the production of a cylinder crankcase (2), comprising a salt core (4) and at least one cylinder sleeve (6), wherein the cylinder sleeve (6) comprises an upper end (8) on the cylinder side, ...
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WO/2008/105646A1 |
The invention relates to a pressure generator and to the novel features thereof, which is intended to multiply pressure output through the use of sealed chambers containing rodless pistons acting on the fluid which operates as a force tr...
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WO/2008/074277A1 |
The present invention relates to an insert (10, 110) for a cylinder sleeve (20, 120, 220) or for a cylinder (222) of an internal combustion engine (30, 130, 230) for reducing the diameter of the cylinder sleeve (20, 120, 220) or of the c...
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WO/2008/055594A1 |
The invention relates to a quasi-monolithic cylinder crankcase, cast in a permanent metal mould, for an internal combustion engine, having an infiltration body (1) which is made so as to penetrate the cylinder crankcase and is formed by ...
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WO/2007/116852A1 |
A sliding material whose surface sliding properties can be altered by shot blasting according to properties required of a sliding part without considerably changing the surface roughness of the sliding material. The sliding material is c...
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WO/2007/086227A1 |
A low-friction slide member having a slide surface allowing relative sliding via an oil as to a surface of opponent material, characterized in that the slide surface is provided with multiple texture groups consisting of at least two rec...
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WO/2007/047799A2 |
A two-speed cylinder of the invention comprises a cylinder tube having an open end and a closed end, with at least one cylinder port located in the tube. A bearing sleeve is movably mounted in the tube. The bearing sleeve comprises a bod...
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WO/2007/047220A1 |
Provided is a low friction, self-lubricating sleeve (104) for use with a reciprocating piston (102) in the compressor (100) and/or the expander subsystem of a cryogenic cooler or other compressor type system. The sleeve is bonded to an o...
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WO/2007/028650A1 |
The invention relates to a cylinder crankcase for a motor vehicle made of a light alloy, which is produced my means of a pressurized casting process, and which is provided, at least in areas, with undercuts. The cylinder crankcase is pro...
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WO/2007/003761A1 |
The invention relates to a cylinder sleeve (2) for lining the cylindrical wall of a cylinder (A1) of an internal combustion engine. The inventive sleeve (2) comprises an inner wall (3) which is intended to guide a piston in translation a...
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WO/2006/061710A1 |
The disclosure relates to surface roughening methods in which a cutting tool having a radial cutting blade with first and second cutting edges is fed along a longitudinal axis of an article while rotating the cutting tool about the axis....
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WO/2006/061701A1 |
The disclosure relates to surface roughening methods in which a cutting tool having a radial cutting blade with first and second cutting edges is fed along a longitudinal axis of an article while rotating the cutting tool about the axis....
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