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JP6446188B2 |
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JP6446187B2 |
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JP6438679B2 |
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JP6434735B2 |
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JP2018534469A |
Pistons for internal combustion engines with improved oil control rings are provided. The piston body has an upper combustion surface and an annular outer wall that hangs from it. A ring belt region containing a plurality of annular ring...
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JP6424369B1 |
To suppress leakage of a low temperature liquid and suppress damage to the piston ring in a piston ring used for a piston of a booster pump which pressurizes and discharges a low temperature liquid. A piston ring includes a first piston ...
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JP6422495B2 |
Provided is a piston ring (10) comprising a sliding surface (11) covered with a Cr-B-V-N alloy film (3), wherein a B content is within a range of 0.1-1.5 mass% inclusive, a V content is within a range of 0.05-1 mass% inclusive, and a rat...
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JP6422526B2 |
A piston includes a piston body and a piston ring fitted into a ring groove. The piston ring has a top surface that includes: a convex portion formed between an inner edge position and a central position at which a radial direction thick...
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JP6417438B2 |
In order to provide a composite chrome plating film having excellent wear resistance and low aggression against a mating material (sliding member), and a piston ring having the film, hard particles are composited in network-shaped microc...
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JP6417400B2 |
A sliding engine component may include a sliding surface including a plastics polymer-based composite layer disposed on a substrate. The composite layer may include a matrix of plastics polymer-based material. The plastics polymer-based ...
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JP6416066B2 |
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JP6416498B2 |
A sliding member 1 according to one aspect of the present invention includes a base material 2 and a thermal spray coating 10 formed on a sliding surface of the base material 2, wherein the thermal spray coating 10 includes a molybdenum ...
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JP2018531352A |
Provide piston rings for internal combustion engines. At least one recess is provided at the ring end of the piston ring. At least one recess in the circumferential direction of the piston ring has a varying depth profile. [Selection dia...
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JP6411875B2 |
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JP2018162411A |
To provide a resin composition that possesses a specific flexural modulus, and is excellent in slidability with a soft metal as a counterpart material (for example, aluminum, copper, zinc or the like) as well as excellent in the wear res...
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JP6404976B2 |
A piston ring (1) which is resinous includes an annular main body portion (2) having an inner peripheral surface (2c) and an outer peripheral surface (2d) facing each other and a pair of side surfaces (2a, 2b) interconnecting the inner p...
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JP6408994B2 |
A method of coating all surfaces of a plurality of piston rings in a single run by a chemical vapor deposition (CVD) process is provided. The method can include providing a coil formed of an iron-based material; heating the coil; and dep...
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JP6403506B2 |
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JP6400874B1 |
To improve sealing performance and reduce oil consumption. According to the present invention, in a state where a combined oil ring is mounted in an oil ring groove and inserted into a cylinder bore, an inclined surface of an upper ear p...
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JP6397708B2 |
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JP6397709B2 |
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JP6394773B2 |
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JP6391761B2 |
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JP6391677B2 |
A piston ring is produced in which a piston ring base body made of cast iron or cast steel is coated with at least one PVD layer having a variable layer thickness, such that an increased layer thickness is present in the region of the ri...
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JP6390470B2 |
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JP6389970B1 |
To improve sealing performance and reduce oil consumption. The present invention is a combination oil ring 1A comprising an upper segment 2, a lower segment 3, and an expander spacer 4. The amount of upward protrusion P1 from the outer p...
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JP6389865B2 |
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JP6385700B2 |
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JP6387237B2 |
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JP6385724B2 |
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JP6387228B2 |
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JP2018132084A |
To provide a piston ring that has excellent gas sealability, and prevents the chipping of a hard film sufficiently, and a method of producing the same.A piston ring is coated with a hard film 3. The piston ring has an abutment gap 4. At ...
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JP2018132102A |
To reduce an amount of a blow-by gas.A piston ring includes: a ring body; a first abutment joint face formed at one end in a circumferential direction in the ring body and oriented on one end side in an axial direction; and a second abut...
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JP2018127974A |
To provide an internal combustion engine which reduces engine oil consumption and suppresses the occurrence of oil ring deposit.When an oil return hole 102 is closed, behavior of upper and lower rails of an oil ring on a lowering stroke ...
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JP2018523072A |
The present invention relates to a piston ring (2) comprising a contact surface region (4), an upper side surface (6), a lower side surface (8) and an inner peripheral surface (10). The contact surface region (4) is a section (12, 14) th...
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JP2018521282A |
The present invention relates to a compression piston ring and includes a sliding surface, an inner peripheral surface, and an upper side surface and a lower side surface extending between the sliding surface and the inner peripheral sur...
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JP6368098B2 |
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JP6364685B2 |
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JP2018115752A |
To reduce friction resistance in an oil ring without impairing an oil control function.An oil ring 13 is installed in an oil ring groove 8 that is provided concavely in an outer peripheral surface of a piston 4, and comprises an upper si...
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JP2018112275A |
To reduce frictional resistance while reducing oil consumption in a mounting structure of a piston ring.In a mounting structure of a piston ring 11 to a piston ring groove 6 formed on an outer peripheral face 4A of a piston 4 of an inter...
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JP2018112276A |
To reduce friction resistance without impairing an oil control function in an oil ring.An oil ring fitted to an oil ring groove which is concavely provided on an outer circumferential surface of a piston includes: an upper side rail 16 a...
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JP6357606B1 |
The present disclosure relates to sliding members. This sliding member includes a base material and an amorphous hard carbon film formed on the surface of the base material, and the amorphous hard carbon film increases from the inner sur...
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JP6357607B1 |
The present disclosure relates to sliding members. This sliding member includes a base material and an amorphous hard carbon film formed on the surface of the base material, and sp of the amorphous hard carbon film.2The ratio increases f...
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JP2018096837A |
To provide an abrasion measuring system, a method for measuring abrasion, and a combustion chamber component which can measure the amount of the abrasion of an object easily.The present invention relates to an abrasion measuring system 1...
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JP6345124B2 |
A piston assembly including a piston body and a piston ring is provided. The piston body has a skirt, a portion of which extends circumferentially continuously and has a skirt diameter. The piston ring has a ring body which extends throu...
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JP2018515714A |
The present invention relates to a cylinder bore (10,110) with a cylinder sliding surface (14,114) for a cylinder housing of an internal combustion engine. Within the cylinder bore (10,110), top dead center (OS) and bottom dead center (U...
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JP6340672B2 |
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JP6343266B2 |
The provided sliding member has both excellent wear resistance and excellent coating adhesion even under harsh sliding conditions. The disclosed sliding member (100) is used in the presence of a lubricating oil and includes a base member...
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JP6339748B1 |
Provided are a segment, a combination oil ring, and a method for manufacturing the segment, which can prevent the segment from rotating independently while coping with lowering the tension of the combination oil ring. The inner periphera...
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JP6339812B2 |
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