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JP6339784B2 |
To provide a piston ring having a hard laminate coating having excellent scuffing resistance, wear resistance and peeling resistance, which can be used in an environment of high mechanical and thermal load in engines, the piston ring is ...
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JP6337058B2 |
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JP6340014B2 |
The invention relates to a sliding element, in particular a piston ring, having at least one running surface. The running surface comprises a coating, which from the inside to the outside has at least one first adhesive layer, a hard hyd...
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JP6333902B2 |
The present invention relates to a diamond-like coating for piston ring surfaces, comprising, successively from the bottom to top, an underlayer, a gradient layer and an AM layer, wherein the AM layer is a diamond-like coating doped with...
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JP6333270B2 |
The present application relates to a sliding element, in particular a piston ring, having at least one sliding surface which has a coating which has, from the inside outwards, a metal-containing bonding layer and a DLC layer, where the D...
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JP2018513278A |
Sliding elements such as piston rings are provided that include a substrate, a base coating, and a relatively thin slide coating. The base coating is typically applied to the sliding surface of the substrate by PVD, CVD, galvanic deposit...
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JP6323607B1 |
To provide a sliding member capable of controlling the relationship between static friction force and dynamic friction force, and a bearing using the sliding member. A sliding member 1 includes a metal base material 2, a porous layer 3 f...
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JP6325455B2 |
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JP2018066427A |
To provide machinery and a slide material used in the machinery which can improve wear durability and extend a maintenance cycle.Machinery includes a member 31 having a metallic surface, and a slide material 32 sliding on a surface of th...
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JP6313601B2 |
To provide a piston ring of low-alloy steel having excellent nitridability, namely, a piston ring of low-alloy steel having excellent thermal conductivity and capable of being provided with a sufficient nitrided layer, steel comprising b...
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JP6313846B2 |
Pistons are disclosed herein. An apparatus includes an actuator defining a first chamber; and a piston disposed in the first chamber, the piston including a second chamber and a seal groove in which a seal is disposed, the second chamber...
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JP6314015B2 |
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JP6312988B2 |
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JP2018051691A |
To provide a ring case that facilitates fitting of piston rings into ring grooves provided in a piston and can determine states of the piston rings fitted into the ring grooves before the piston is inserted into a cylinder bore.A ring ca...
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JP2018051690A |
To provide a ring case that can determine states of piston rings fitted into ring grooves before a piston is inserted into a cylinder bore.A ring case 1, which is used in combination with a taper ring 2 which assists fitting of piston ri...
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JP6299775B2 |
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JP2018044215A |
To provide an oil ring material in which high quality and reduction in manufacturing cost by improving productivity can be achieved, and to provide a method for producing oil ring material.The oil ring material has a crystal grain size o...
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JP6297049B2 |
The invention relates to a component having a coating containing chromium, nitrogen and carbon, which component is characterized in that the coating comprises a sliding layer having a ceramic phase and an amorphous phase. According to th...
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JP6289504B2 |
A piston ring (2) having increased fatigue resistance includes a plastically deformable material. The piston ring (2) has a running face (4), which is delimited at the top by an upper running face edge (3) and at the bottom by a lower ru...
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JP2018028332A |
To provide a piston ring capable of restricting damage at an abutment part and assuring its sealing characteristic in a superior manner.At an abutment part 3 of a piston ring 1, a side surface 2a of a main body part 2 is provided with a ...
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JP2018028317A |
To provide a method capable of shortening a pitch time and forming a high-quality ring groove.This invention relates to a method for forming a piston 1 of an internal combustion engine, and also a method for forming at least one ring gro...
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JP6276497B2 |
The insert (1) has an annular element (2) that is firmly attached in a radial recess (8) of a cylinder (4). Another annular element (3) that is inserted in a radial groove (9) of the former annular element. The latter annular element is ...
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JP6273563B2 |
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...
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JP6275151B2 |
A piston ring having an outer running face, two flanks and an inner circumferential face is provided. The running face has profiling. The profile of the running face is substantially convexly curved and has an apex. The axial position of...
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JP6270664B2 |
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JP6261582B2 |
The present application relates to a sliding element, in particular a piston ring, having a coating (10) on a substrate (12), which forms at least one sliding surface of the sliding element. The coating (10) has, from the inside outwards...
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JP6257130B2 |
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JP6256674B2 |
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JP6259827B2 |
The invention relates to a novel wear-protection layer for piston rings of internal combustion engines and a method for applying a wear-protection layer of this type during production of a piston ring. The protective layer is characteriz...
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JP2017227274A |
To provide a piston ring capable of efficiently releasing heat to a cylinder wall surface even under a severe slide condition, and obtaining high abrasion resistance and aluminum agglutination resistance.A slide member has: a base materi...
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JP6251850B1 |
While aiming at reduction of an oil amount of consumption at the time of oil ring sliding, provide a combination oil ring which can aim at reduction of friction. Shape of a peripheral face of a top segment arranged among a pair of segmen...
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JP2017218918A |
To provide a piston ring lubrication structure capable of restricting occurrence of seizure while maintaining a gas seal at a combustion chamber without producing any reduction in strength of the piston ring.A piston ring lubrication str...
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JP6246898B2 |
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JP6245164B2 |
To suppress wear caused by sliding of low friction layers formed on the slide surface of at least one of both members constituting a slide part, in engine stop until an engine reaches a stop state from a predetermined rotational speed, i...
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JP6239817B2 |
The sliding element comprises a diamond-like-carbon (DLC) coating (12) on a substrate of the sliding element, and a material (20-40%) softer than DLC that is embedded in the surface of the DLC coating with which the sliding element comes...
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JP6240098B2 |
A piston ring for sealing a cylinder wall to a piston body is provided. The piston ring includes a ring body that extends about an axis and has inner and outer faces. The inner face presents a pair of ridges that extend in a radially inw...
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JP6239964B2 |
A combined oil control ring (1) comprising a pair of circular side rails (2) each having a gap, and a waved spacer expander (3) longitudinally sandwiched by the side rails (2), which has seating tabs (4) for pushing inner surfaces of the...
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JP2017207079A |
To provide a method of manufacturing a seal ring, which improves productivity of the seal ring and which enables the seal ring to be stably manufactured with high quality.A closed annular ring-shaped intermediate molded article 10, in wh...
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JP6234943B2 |
A piston, piston ring and method of construction thereof is provided. The piston ring is L-shaped, having a first portion configured to extend upwardly from a ring groove of a piston along a top land of the piston and a second portion co...
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JP6234900B2 |
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JP6231021B2 |
A piston ring assembly for sealing a cylinder wall to a piston body is provided. The piston ring assembly includes a plurality of rings stacked in an axial direction one in abutment with another. Each ring has an inner face and an outer ...
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JP6230547B2 |
A power cylinder assembly for an internal combustion engine is provided. The power cylinder assembly includes a cylinder wall having a channel formed therein and a piston body with a skirt. A piston ring is seated within the channel of t...
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JP6228452B2 |
A combined oil control ring comprising a pair of circular side rails (3) each having a gap, and a spacer expander (2) longitudinally sandwiched by the side rails, which has seating tabs (6) for pushing inner surfaces of the side rails on...
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JP2017198343A |
To provide a piston ring capable of assuring both a strength of abutment part and a sealing characteristic in a superior manner.A side surface 2a of a main body part 2 at an abutment part 3 has a first protrusion part 13 facing from one ...
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JP6222023B2 |
An oil ring to be attached to a ring groove of a piston for an engine is provided. The oil ring includes two annular ring bodies having a common axis and arranged in tandem, and an expander for biasing the ring bodies radially outward. A...
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JP6224111B2 |
A piston assembly for an internal combustion engine, comprises: a piston head having an upper combustion wall with an undercrown surface and a ring belt region depending from said upper combustion wall, a floor having an upper surface an...
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JP6217620B2 |
To suppress wear caused by sliding of low friction layers formed on the slide surface of at least one of both members constituting a slide part, in engine stop until an engine reaches a predetermined rotational speed from a stop state, i...
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JP6216334B2 |
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JP6211332B2 |
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JP2017172616A |
To provide a combined oil control ring for an automobile engine in which a fastening between a spacer expander and a side rail is not generated even in the case of engine operation for a long period of time and a superior oil control fun...
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