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WO/2018/190061A1 |
Provided is a smooth sliding member comprising: a sliding member formed of metal and having an uneven structure in the surface; and a smooth coating layer that coats the surface of this sliding member. The coating layer is formed of the ...
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WO/2018/190167A1 |
According to the present invention, a piston of an internal-combustion engine includes a piston main body portion, an abrasion resistant ring, and an intermediate layer. The piston main body portion is formed from an aluminum alloy or a ...
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WO/2018/184894A1 |
The invention relates to a piston (1) of an internal combustion engine (2), comprising a piston head (3), which has a piston bowl (4) and a ring part (5), and comprising an annular cooling channel (6), which is arranged between the ring ...
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WO/2018/183503A1 |
Internal combustion engines having pistons with one or more depressions located on the piston head to facilitate the movement of air/charge in the cylinder are disclosed. The pistons may include a skirt with a field of pockets that provi...
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WO/2018/173548A1 |
This piston is provided with a functional layer holding part (34) formed on a crown surface (30) of a piston head (3), wherein the functional layer holding part (34) has, disposed adjacent to each other, an insulating coating (C1) servin...
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WO/2018/163847A1 |
A projecting part 31S projecting to a first sliding surface 2A side in a cross-section along the sliding direction of a second sliding surface 31S is provided on the second sliding surface 31S, which slides relative to the first sliding ...
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WO/2018/158419A1 |
The present invention is directed to a gudgeon pin for internal combustion engines, which gudgeon pin consists of case-hardened steel and is characterized in that a ratio of a residual wall thickness of the gudgeon pin to an overall thic...
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WO/2018/154207A1 |
The invention mainly relates to a mechanical device (9) for transmitting movement for a combustion engine, comprising: - a connecting rod (10) comprising a connecting rod big end (13) intended to cooperate with a crank pin of a crankshaf...
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WO/2018/141762A1 |
The invention relates to a cylinder-piston device, comprising a cylinder (1), on the inside of which a seal is provided in the form of a liner, and at least one piston (2), at the radially outer side of which at least two outer sections ...
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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...
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WO/2018/131443A1 |
Provided is a piston manufacturing method including: a formation step for forming a reference surface on a crown surface of a piston; a processing step for processing a piston pinhole in a set position, with the reference surface as a po...
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WO/2018/131356A1 |
In order to provide a piston which is for an internal combustion engine and makes it possible to both improve combustion efficiency and suppress knocking, the present invention is provided with: a piston body that contains a metal, has a...
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WO/2018/113810A1 |
The invention relates to a screw-threaded working cylinder comprising a tubular cylinder (1), a closure (2) and a piston unit (3), wherein the tubular cylinder (1) has an end region (4), the end region (4) of the tubular cylinder (1) has...
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WO/2018/116753A1 |
Provided is a piston for an internal combustion engine enabling an improvement in the controllability of thermal conductivity. The piston for the internal combustion engine is provided with: a body section which is formed from a metal ma...
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WO/2018/099858A1 |
The present invention relates to a piston-connecting rod assembly (1) for an internal combustion engine, comprising a piston (10) with a piston boss (11), in which piston boss (11) a small end (21) of a connecting rod (20) is received wi...
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WO/2018/097009A1 |
Provided is a diesel engine comprising: a cylinder (12); a cylinder head (14); a fuel injection valve (17); and a piston (13). The piston (13) includes: a cavity (30) that is recessed so as to be capable of receiving fuel injected from t...
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WO/2018/092176A1 |
[Problem] To provide an internal combustion engine that can suitably realize suppression of a piston slap noise and reduction of friction. [Solution] An internal combustion engine is provided with: an engine body 2 that defines a cylinde...
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WO/2018/086510A1 |
An internal pressure type automatic compensation piston. The piston comprises a piston body (1), a sealing body (2) mounted on the piston body (1), and a gland (5). The sealing body (2) is located between the piston body (1) and the glan...
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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...
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WO/2018/069411A1 |
The present invention relates to a method for producing an object (6) by means of laser melting. It is essential to the invention that at least two different powdery starting materials (4, 5) are used, which have different strength prope...
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WO/2018/061591A1 |
Provided are: a piston for an internal combustion engine with which the adhesion with a substrate and the durability can be secured and low heat conductivity and low volume specific heat can be achieved; and a method for manufacturing th...
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WO/2018/058758A1 |
A piston structure, comprising a piston rod connector (10) which comprises a connector body (101), a seal ring (102) and a jaw structure (103); the seal ring (102) is sleeved on a first end portion (1011) of the connector body (101); the...
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WO/2018/058103A1 |
A connecting rod assembly (10) is disclosed. The connecting rod assembly (10) includes a connecting rod (12), a connecting rod bushing (14) at least partially disposed within the connection rod (12); and a piston pin (16) at least partia...
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WO/2018/049364A1 |
A fluid pump apparatus (44) for an artificial lift system (10) has a barrel (52), a standing valve (54) positioned at a lower end of the barrel, a plunger (56) reciprocatingly mounted within the barrel, and a traveling valve (58) positio...
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WO/2018/041879A1 |
The invention relates to an assembly having a piston (1) of an internal combustion engine, comprising an upper part (2) and a piston skirt (3) adjoining the upper part (2), wherein furthermore a piston pin (4) is fastened to the piston (...
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WO/2018/037616A1 |
Provided is a piston for an internal combustion engine, in which cylinder or piston wear can be minimized. This piston for an internal combustion engine has a main body and a low-thermal-conductivity part. The main body, which contains a...
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WO/2018/029903A1 |
Provided is an internal combustion engine piston which can be manufactured more easily. The internal combustion engine piston comprises: a main body section made of an aluminum alloy and having a piston head and a skirt part disposed on ...
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WO/2018/030014A1 |
A hydraulic fluid cylinder (10A) is equipped with a cylinder tube (12), a piston unit (18), and a piston rod (20). The piston unit (18) has a gasket (34) and a piston body (38) comprising a plurality of members and provided with a gasket...
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WO/2018/019319A1 |
The invention relates to a piston unit of a hydraulic cylinder, comprising a piston rod (1), a piston (2), and a plurality of cylinder molded bodies (3), wherein along an outer periphery, the piston rod (1) has a first radial groove (4),...
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WO/2017/220385A1 |
A building cylinder arrangement (1) for a machine (90) for the layer-by-layer production of three-dimensional objects (11) by sintering or melting powdery material (10) with a high-energy beam (12), in particular a laser beam (13), compr...
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WO/2017/203779A1 |
[Problem] To suppress, in a piston including different materials, breakage at the interface where the respective materials are joined together. Also, a manufacturing method for such a piston is provided. [Solution] A piston 1 for an inte...
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WO/2017/190952A1 |
Piston (1) of an internal combustion engine, comprising a piston crown (2) and a piston bottom (3), the piston crown (2) having at least one ring groove region, and the piston bottom being formed by opposite bores (4) and piston skirts (...
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WO/2017/163874A1 |
Provided is a shock absorber that is capable of prolonging an overall product life. The present invention is characterized by being provide with: a cylinder 3 that houses silicon oil and forms a pressure chamber 13; a piston 5 that is di...
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WO/2017/158000A1 |
A press for waste has an actuator (42) that moves a ram (40) in a chamber (30). The actuator and the ram are connected by a fastening system (100). The fastening system allows the ram to be displaced in a direction perpendicular to the l...
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WO/2017/159424A1 |
A piston (1) comprises a pair of grooves (5a, 5b) along an outer wall surface (47) of an apron part (4) on the rear surface side of a crown part (2). Skirt sections of the piston (1) are formed such that the widths thereof along the pist...
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WO/2017/157649A1 |
The invention relates to a ball joint comprising a ball head (12) which is arranged on a support rod (10) and which is mounted in a ball receiving area (13) of a piston (14). The outer surface of the ball head (12) is secured in the ball...
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WO/2017/154375A1 |
A pin main body 10 is provided with a thinning hole 11 having: one-end-side and other-end-side large-diameter parts 11b, 11c provided to both longitudinal end sides of the piston main body; a central small-diameter part comprising a smal...
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WO/2017/149053A1 |
The aim of the invention is to provide a sealing element that is simple and economical to produce and enables efficient sealing. This aim is achieved, according to the invention, in that the sealing element is annular and comprises a mai...
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WO/2017/142007A1 |
[Problem] The present invention provides a piston for internal combustion engines, the piston being configured so that: the piston can be efficiently cooled by reliably conducting a required amount of cooling oil to a portion requiring c...
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WO/2017/137183A1 |
Disclosed is a piston-cylinder unit (1) comprising a piston rod (5) on which at least one piston (9) is arranged that has a radially elastic piston ring (33) on an outer lateral surface (37); depending on the stroke position of the pisto...
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WO/2017/127594A1 |
An assembly including a connecting rod, a bushing, and a locking pin capable of providing different compression ratios in an engine is provided. The bushing is disposed in a bore of the connecting rod. An outer surface of the bushing inc...
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WO/2017/122451A1 |
Provided is a piston wherein a low thermal conduction portion can be formed using a different material. In this piston for an internal combustion engine, a low thermal conduction portion, which has a plurality of flat low thermal conduct...
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WO/2017/122474A1 |
In order to provide a method for producing a piston with which a low thermal conduction member can be provided at a position corresponding to a fuel injection region of the piston, this method for producing a piston for an internal combu...
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WO/2017/122564A1 |
This piston for internal combustion engines, which is capable of achieving high heat shielding properties and high durability, comprises: a base that is formed from aluminum or an aluminum alloy; a composite material part which is formed...
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WO/2017/115711A1 |
The piston for an internal combustion engine is equipped with a top land where multiple circumferentially extending local grooves are formed apart from each other in the circumferential direction, wherein each of the local grooves is con...
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WO/2017/100914A1 |
A hydraulic rod in reciprocating movement within a barrel of a hydraulic cylinder along a longitudinal direction of the barrel, and a method of manufacturing thereof, a surface finish of the rod comprising valleys, wherein the rod furthe...
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WO/2017/094728A1 |
In a piston for an internal combustion engine, the piston parent material of the piston crown surface has, from the outer surface in the depth direction, a first layer that is a layer of a first metal or a layer containing the first meta...
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WO/2017/086103A1 |
A piston structure for an engine according to the present invention is provided with outer peripheral edge parts (6) having preset thicknesses and being formed along the contour of a piston (1), a pair of substantially cylindrical piston...
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WO/2017/082136A1 |
The present invention comprises a cooling cavity 10 that is a single space that is demarcated by a top wall 11 that forms a top combustion chamber of a steel piston 1, by an outer wall 12 to which piston grooves 15 are provided, and by a...
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WO/2017/079054A1 |
A piston (20) is disclosed. The piston may have a piston crown (30) having a top surface (48). The piston may also have a first land (50) disposed in the piston crown adjacent the top surface. The first land may have a side surface (62) ...
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