Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 7,722

Document Document Title
WO/2018/220192A1
A piston ring and a method of manufacturing a piston ring for a piston of a reciprocating internal combustion engine. The piston ring comprises a body having an outer circumferential surface. A tribological coating is formed on the outer...  
WO/2018/215269A1
A piston ring is formed from a steel substrate consisting of the carbon in a range of 0.80-0.95wt.%, silicon in a range of 0.30-0.55 wt.%, manganese in a range of 0.25-0. wt.%, phosphorus in a range of up to 0.04 wt.%, sulfur in a range ...  
WO/2018/198173A1
This side rail (1) is configured to have: an outer peripheral surface (14) facing radially outward; an inner peripheral surface (13) facing radially inward; a first axial side surface (11) facing one axial side; and a second axial side s...  
WO/2018/197450A1
The present invention relates to an oil scraper ring spring (1) for an oil scraper ring (3), which has the oil scraper ring spring (1), an upper and a lower metal ring (21, 22) and which is provided for being installed in an oil ring gro...  
WO/2018/189255A1
The present invention relates to a piston ring (1) for internal combustion engines provided with a ferrous alloy base (2) that comprises an annular outer surface (3) on which a coating comprising at least one outer layer (6) is applied d...  
WO/2018/187006A1
A split-ring annular seal or retaining ring having overlapping tapered projections at juxtaposed ends. The tapered projection of each juxtaposed end has an enlarged portion forming a tapered ridge that tapers toward a narrow portion form...  
WO/2018/177900A1
A piston ring that is pre-treated by grit blasting to a defined roughness, followed by PVD coating with a metal nitride to a thickness of at least 10┬Ám, leaving peaks and valleys in the coated piston ring. The coated piston ring is then...  
WO/2018/179709A1
The present disclosure pertains to a slide member. This slide member comprises a base material and an amorphous hard carbon film formed on the surface of the base material, wherein the amorphous hard carbon film has an sp2 ratio that inc...  
WO/2018/181383A1
This piston for an internal combustion engine is provided with a piston main body and a piston ring arranged in a ring groove and can move inside of the cylinder, wherein, with piston ring in a free state, the upper surface of the piston...  
WO/2018/179708A1
The present disclosure relates to a sliding member. This sliding member includes a base material and an amorphous hard carbon film formed on a surface of the base material, the amorphous hard carbon film having a graded composition where...  
WO/2018/183895A1
A piston and cylinder arrangement is disclosed in which a field of spaced pockets is provided on the walls of a piston skirt and/or the cylinder to create a seal equivalent between the piston and the cylinder. The pockets may be provided...  
WO/2018/177574A1
The invention relates to a play-free oil scraper ring, the cross section of which comprises: a running surface limb having at least one scraper web which is arranged on a running surface, an upper piston ring flank limb which is connecte...  
WO/2018/172091A1
The invention relates to a piston ring, in particular a compression piston ring, comprising, on a top piston ring flank, at least one recess having a bottom edge extending obliquely with respect to the top piston ring flank, which recess...  
WO/2018/173995A1
In order to provide a composite chrome plating film having excellent wear resistance and little aggression toward a mating material (sliding member), and a piston ring having the film, the present invention is configured so that hard par...  
WO/2018/173423A1
This piston ring (1) consisting of a resin has: an annular body (2) having an inner peripheral surface (2c) and an outer peripheral surface (2d), which face each other, and also having a pair of side surfaces 2a, 2b) for connecting the i...  
WO/2018/157880A1
The invention relates to a piston ring, in particular a compression piston ring, containing a running surface, upper and lower face regions, an inner peripheral surface, and a joint, at least the running surface being provided with at le...  
WO/2018/153923A1
The invention relates to a guide element, which is simply constructed and permits efficient guidance of a piston in the piston receptacle, for example a cylinder. According to the invention, the guide element comprises the following: an ...  
WO/2018/154213A1
The invention relates to an articulated coupling (1) provided for a piston sealing device (2) for a piston (3) that includes a stationary skirt (7) and a sliding skirt (12) connected to one another by a mechanical link between skirts (13...  
WO/2018/155380A1
This piston is provided with an annular piston band (7). The piston band (7) has an annular protrusion (8) formed at one axial end of the piston band (7) and having a larger outer diameter than the remaining portion of the piston band (7...  
WO/2018/149444A1
The invention relates to a cylinder (10) of an internal combustion engine, comprising a cylinder liner (11) and a cylinder piston (12) which is guided in the cylinder liner (11). The cylinder piston (12) has multiple ring grooves (18) wh...  
WO/2018/147122A1
Provided is a coating device that can control film thickness distribution in the circumferential direction of a workpiece. The coating device is provided with: a workpiece rotating device (5) for rotating and revolving a plurality of wor...  
WO/2018/138574A1
The present disclosure relates generally to seal rings useful in rotating systems such as automobile transmissions, torque converters and automatic clutches. In one embodiment, the disclosure provides a seal ring in which the first end i...  
WO/2018/130316A1
The invention relates to a piston ring, having a ring body (14) of gray cast iron, which has a region of ledeburite microstructure (4) on at least one ring flank (8), which region of ledeburite microstructure extends to the ring running-...  
WO/2018/130779A1
The present invention concerns a combustion engine piston (1), comprising: a skirt (2) for guiding the piston (1) in translation along a central axis (X1) in a counter-part (C) and consisting of a first contact area (Z2) of the piston (1...  
WO/2018/128774A1
A piston ring is made from a copper-nickel-silicon-chromium alloy. This material permits the top compression ring of a piston to be moved closer to the piston crown, reducing crevice volume and reducing the tendency for pre-ignition. Ign...  
WO/2018/128775A1
A piston ring is made from a copper-containing alloy. This material permits the top compression ring of a piston to be moved closer to the piston crown, reducing crevice volume and reducing the tendency for pre-ignition. Ignition timing ...  
WO/2018/128773A1
A piston ring is made from a copper-beryllium alloy. This material permits the top compression ring of a piston to be moved closer to the piston crown, reducing crevice volume and reducing the tendency for pre-ignition. Ignition timing a...  
WO/2018/127534A1
The present invention relates to a stepped piston ring (2), comprising a ring outer side (5), an upper ring flank (6), a lower ring flank (8), wherein the ring outer side (5) has a recess (10) on an upper edge, so that only a lower part ...  
WO/2018/114224A1
The present invention relates to a Piston (1) for an internal combustion engine (2) having - a piston axis (3) and a radial plane (4) which runs orthogonally with respect thereto, - a piston head (6) with an outer circumferential face (5...  
WO/2018/108464A1
The piston ring comprises an endless base ring (5) and a sealing ring (3) wherein the base ring (5) has a radially outwardly directed base ring face side (5a), and wherein the sealing ring (3) has a radially outwardly directed sealing fa...  
WO/2018/103779A1
The invention relates to an oil control ring (1) for an internal combustion engine, having two webs (3, 4) arranged axially one over the other in the region of the running surface (5, 6) of the oil control ring, wherein both webs form th...  
WO/2018/074939A1
Sealing of the moving cylindrical surfaces of, in particular, pumped storage installation, characterized in that between the wall of the cylindrical tank (1) and the piston (2) wall there is a toroid shaped gasket (3) made of flexible ma...  
WO/2018/073033A1
The invention relates to a sealing element and/or guide ring produced from a composition that contains: i) 50 to 98 wt% of polytetrafluoroethylene and/or modified PTFE, ii) 1 to 49 wt% of perfluoroalkoxy polymer and iii) 1 to 49 wt% of a...  
WO/2018/071867A1
The present disclosure provides an open-faced piston with a circumferential groove into which a piston ring assembly is arranged. Openings at the bottom of the circumferential groove and between a front land of the open-faced piston and ...  
WO/2018/065535A1
The present invention relates to a one piece oil control ring (10) for an internal combustion engine capable of readily conforming to a cylinder liner (20) by virtue of the excellent flexibility of the ring (10), comprising a first surfa...  
WO/2018/056282A1
Provided is a sliding component having excellent sliding properties. Also provided are a sliding structure provided with this sliding component and a method for sliding the sliding structure. The sliding component has a constituent compo...  
WO/2018/053428A1
A piston ring having a ring-shaped body with at least one internal wall surface configured to bear against the piston, an exterior wall surface, and at least a top wall surface extending from the exterior wall surface to the at least one...  
WO/2018/046161A1
The invention relates to a two-part oil control ring, which comprises an L-shaped main body and an axial stabilization element. The L-shaped main body has a ring flank leg, which is pressed against a piston ring groove flank by the axial...  
WO/2018/041770A1
The invention relates to a sliding element, in particular a piston ring, to a method for producing same, and to the use of the sliding element in a tribological system. The sliding element has a coating which has at least one adhesive la...  
WO/2018/034112A1
In a fitting section 3 of a piston ring 1: a first protruding section 13 and a first receiving section 14 are provided on a side surface 2a side of a main body section 2; a second protruding section 15 and a second receiving section 16 a...  
WO/2018/019445A1
The invention relates to a one-piece oil control ring, which has two scraping ridges (2) and openings (3), which extend from the outside of the ring to the inside; wherein the cross-section of the ring body varies in the circumferential ...  
WO/2018/019940A1
The present invention relates to a sliding element for internal combustion engines provided with a coating comprising two layers (14, 15) of hard amorphous carbon (DLC) having a differing percentage of sp 3 bonds and thicknesses and a ro...  
WO/2018/015345A1
The invention relates to a piston ring for sealing at least one component of a turbocharger. The piston ring comprises a first ring body which is a base body of the piston ring. The first ring body is formed and designed such that it is ...  
WO/2018/015022A1
The invention relates to a hydraulic flight control actuator, comprising a piston-cylinder device, which has a piston and a cylinder, and comprising a double seal device, which has at least one primary seal (1) and at least one piston ri...  
WO/2018/002072A1
The present invention relates to a sliding element for internal combustion engines having a coating of hard amorphous carbon comprising nanoparticles of a solid lubricant capable of bringing about a reduction in the friction and, consequ...  
WO/2017/218444A1
An engine component, for example a piston ring, including a wear resistant coating applied by physical vapor deposition (PVD) is provided. The coating includes tetrahedral amorphous carbon (ta-C), the carbon of the coating includes sp3 h...  
WO/2017/207172A1
The invention relates to an oil control ring, comprising two circumferential ridges (3, 4), the sliding surfaces of which are curved outward, wherein the ridge (3) on the combustion chamber side has an axial height (K) that is greater th...  
WO/2017/207323A1
The invention relates to a compression piston ring (1), in particular a piston ring suitable as a second piston ring in a three-ring piston ring set, which piston ring has convex sections (Ax) and concave sections (Av) in alternation in ...  
WO/2017/209135A1
In relation to a sliding structure for an internal combustion engine according to the invention, a cylinder is formed to have a plurality of recesses in a stroke center region, a piston ring is formed to have an inclined surface formed a...  
WO/2017/186915A1
The invention relates to a sliding element, in particular a piston ring, having a coating which comprises the following layers from the inside to the outside: a polycrystalline, metal-containing adhesive layer, an intermediate layer, and...  

Matches 1 - 50 out of 7,722