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Matches 1 - 50 out of 7,674

Document Document Title
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...  
WO/2017/184480A1
A piston ring (12) includes a body portion (36) presenting a running surface (44), and a spring member (38) disposed between the body portion (36) and a ring groove (28) of a piston (10). A running surface of the piston ring presents an ...  
WO/2017/182185A1
The invention relates to a piston ring which is provided with a DLC (Diamond-like Carbon) layer as a functional/wear protection layer, wherein the DLC layer is covered by a protective layer, the material of which is different from that o...  
WO/2017/167817A1
The present invention refers to a piston ring (1) and a method for depositing a multi-layer coating (5) with a nanolayer structure able to guarantee a variable thickness of the coating (5) of the peripheral surface (2) of the piston ring...  
WO/2017/161910A1
The invention relates to the field of power equipment. Provided is a horizontally-opposed internal combustion engine, comprising a left cylinder body and a right cylinder body. A plurality of left piston-cylinder units are disposed on th...  
WO/2017/164160A1
The present invention provides a combined oil control ring for vehicle engines, wherein even in a long-term engine operation, sticking between a spacer expander and a side rail does not occur, and an excellent oil control function can be...  
WO/2017/157490A1
The present invention relates to a three-piece oil stripping piston ring (2) having an upper disc-shaped stripping ring (4), a lower disc-shaped stabilizing ring (6), and a circular expander (8) which has projections (10) which protrude ...  
WO/2017/157309A1
A helical coiled seal (08) for sealing a barrel -shaped cylinder piston-cylinder assembly, comprising: a piston-sealing C-shaped ring (401); a connecting C-shaped ring (402) comprising an inward wing (501) protruded inwardly from a secti...  
WO/2017/156494A1
Embodiments of a piston ring reduce the volume of a crevice defined between the circumferential wall of a cylinder and a portion of the outer wall of a piston within the cylinder, the portion extending down from the top of the piston. Th...  
WO/2017/155331A1
The present invention relates to an alloy cast iron, and a piston ring including the same, the alloy cast iron comprising: a pearlite base; and a graphitized structure precipitated in the pearlite base and a steadite-type process structu...  
WO/2017/150571A1
The present invention provides a sliding member capable of achieving high wear resistance and coating adhesion without the need for nitriding a base material even for intense sliding conditions. The sliding member according to the presen...  
WO/2017/149082A1
A piston ring (110) for a piston (14) of a reciprocating internal combustion engine. The piston ring comprises a body having an outer contact surface. A tribological coating (126) is formed on the outer contact surface of the body. The t...  
WO/2017/146048A1
Provided is a piston ring which can sufficiently exhibit the sealability of the outer circumferential surface thereof and in which increase in oil consumption due to reduction of surface pressure and increase in frictional loss due to pr...  
WO/2017/137500A1
The present invention relates to a tribological system (1; 2) with a first body (102; 105) and a second body (101; 107), which each form a component of an internal combustion engine (100), in particular a piston (110), a piston ring (105...  
WO/2017/130587A1
The present invention provides a sliding member, in which interlayer peeling is less likely to occur even under tough sliding conditions. The present invention is a sliding member 100 used with lubricating oil, and is characterized by ha...  
WO/2017/104822A1
The purpose of the invention is to provide technology, which, in addition to being capable of forming thick hard carbon films of excellent durability even using PVD, is able to establish both chipping resistance and abrasion resistance i...  

Matches 1 - 50 out of 7,674