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JP6033533B2 |
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JP6036902B2 |
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JP6029790B2 |
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JP6025236B2 |
A pressure balance seal includes a sealing surface facing an inward radial direction, and a stator interface comprising at least one surface interfacing with a stator. The pressure balance seal further includes a friction reducing featur...
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JP6013548B1 |
[Subject] Also in prolonged engine operation, a combination oil control ring for automobile engines which can maintain an outstanding oil control function is provided, without adherence between a spacer expander and a side rail occurring...
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JP2016183662A |
To secure a passage through which compression fluid stably flows in accordance with wear of a piston ring.A compressor for compressing fluid includes: a cylinder; a piston ring 9 having an abutment part; and a piston to which the piston ...
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JP6010278B2 |
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JP5986192B2 |
A piston ring has a piston ring basis element, of a material having a first thermal expansion coefficient, a wear protection layer, arranged on a radially outer face of the piston ring, that is made of a material having a second thermal ...
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JP5980841B2 |
The objective of the present invention is to provide a laminated hard-film-coated piston ring which can be used in an environment in which an engine is subjected to high mechanical and thermal loads, and which has superior scuffing resis...
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JP5981013B1 |
[Subject] The piston ring for internal-combustion engines which continues under high temperature and a high load condition at a long period of time, and can prevent aluminum agglutination is provided. [Means for Solution] It is piston ri...
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JP5980966B2 |
A combined oil control ring comprising a pair of annular side rails each having a gap, and an axially corrugated spacer expander arranged between the side rails; the corrugated spacer expander having on the inside seating tabs for pushin...
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JP5977322B2 |
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JP5976328B2 |
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JP5970239B2 |
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JP5970200B2 |
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JP5968341B2 |
A piston ring, in particular a compression piston ring, includes a main body, which has a radially outer running surface, a radially inner circumferential surface, an upper and a lower flank surface, and a joint, wherein the running surf...
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JP5968435B2 |
An oil scraper ring, comprising a base body having a radially outer running surface, a radially inner circumferential surface, and an upper and a lower flank, the ring having at least two running surface lands, which are provided with a ...
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JP5965378B2 |
To provide a hard-amorphous-carbon-coated piston ring having low friction and excellent wear resistance and peeling resistance to reduce the fuel consumption of automobiles, an outer peripheral surface of a steel-made piston ring base ma...
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JP2016130515A |
To provide a piston assembly for a reciprocating engine.A power cylinder system 8 for a reciprocating engine 10 includes a steel piston 20 configured to move within a cylinder 26 of the reciprocating engine 10. The system 8 also includes...
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JP5955754B2 |
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JP5954930B2 |
A piston/piston ring arrangement for an internal combustion engine has a piston that is provided with at least one piston ring accommodated in a ring groove, which ring has a ring gap. A spring element is disposed between the groove root...
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JP5950999B2 |
A method for producing a recessed steel piston ring provided with a wear-resistant layer includes generating a main body that has a recess on the running surface side and that, in the region where a lower flank of the main body transitio...
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JP2016121602A |
To suppress consumption of oil while maintaining the oil amount between a piston and a cylinder properly.A piston 1 includes a piston body 102a with a side face formed with a ring fit-in grooves 103a, 103b, 103c into which a piston ring ...
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JP5947685B2 |
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JP5940071B2 |
A piston ring, is produced by providing, on the radially outer circumferential surface of a ring-shaped metallic main body, a recess, the metallic main body having a radially outer circumferential surface, a radially inner circumferentia...
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JP5942739B2 |
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JP5940642B2 |
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JP5938374B2 |
A piston for an internal combustion engine includes a piston body made of an aluminum alloy material containing silicon and having a piston ring groove formed therein and an anodic oxide film formed on the piston ring groove, wherein a m...
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JP5937683B2 |
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JP5930327B2 |
The invention relates to a method for producing a piston ring (30, 130, 230) for a piston (10) of an internal combustion engine, comprising a ring back (31), an upper ring flank (32), a lower ring flank (33), and a running surface (42), ...
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JP5928265B2 |
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JP2016514240A |
A method of manufacturing a covering piston ring contains a step which applies a layer of aluminum material to the external surface of a main part of a ring formed from ferrous materials, such as steel. A layer of aluminum material is ap...
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JP5918326B2 |
A coated sliding member 10 for use under an environment where it is in contact with lubricant, comprising: a base material 12; and a first hard carbon layer 14 having a thickness of 3 µm or more formed on a surface of the base material ...
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JP5917276B2 |
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JP5913976B2 |
Described herein are fluororesin compositions of melt processible fluororesin and wholly aromatic polyamide fibers. The wholly aromatic polyamide fibers have an average fiber diameter of 10-20 μm and an average fiber length of 100-1,000...
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JP5914334B2 |
Provided is a high-toughness coating film having excellent wear resistance, in particular, resistance to cracking and peeling. A high-toughness coating film (2) includes a composition containing a mixture of metallic chromium, in which n...
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JP2016070231A |
To reduce striking sound resulting from contact between a piston and a cylinder, without increasing time and labor required for assembling the piston into the cylinder.A reciprocal type air compressor 1 has: cylinders 51a, 51b; pistons 5...
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JP5912396B2 |
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JP5907955B2 |
An oil control ring for internal combustion engines, formed by a ferrous body having two external contact surfaces where each surface contains first and second extremity edges, two tilted faces where each tilted face starts from the resp...
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JP2016060846A |
To provide a rubber composition with a low frictional coefficient and excellent wear resistance.A rubber composition comprises ethylene-propylene-diene rubber, and porous carbon material particles produced from plant raw material, where ...
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JP2016061407A |
To enhance the sealing performance and oil scooping performance of a piston ring.In a piston ring 1 having a ring main body 10 which has a pair of abutment parts 20, and sets one side and the other side of the abutment part 20 as both en...
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JP2016053369A |
To improve anti-frictional characteristic of a reciprocating piston type combustion engine having at least one cylinder, in particular a large-sized Diesel engine.This invention relates to a reciprocating piston type combustion engine ha...
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JP5903085B2 |
To provide a combination of a cylinder bore and a piston ring having excellent scuffing resistance and wear resistance with low friction loss even under severe sliding conditions with a high load applied to an engine, by a thermal sprayi...
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JP5901546B2 |
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JP2016037967A |
To provide a piston assembly that reduces blowby of unburned hydrocarbons, oil consumption, friction, wear and scuffing.A space is defined between a portion of a topmost groove and an inner circumferential face of a top ring while the to...
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JP5890394B2 |
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JP5891285B1 |
To provide an oil ring which can satisfactorily suppress the outflow of lubricating oil to a combustion chamber at a joint portion and improve the assembling property to a piston. In a joint portion 4 of an oil ring 1 having an annular m...
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JP5890946B2 |
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JP2016038091A |
To resolve problems found in a 25 to 30 kg/cmmachine used as an injection forming machine for engine starting and plastic injection of a reciprocating compressor and many other applications showing many problems related to a piston ring,...
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JP2016037962A |
To improve a pressure gradient of a piston ring part and enable adequate control of oil and blowby.A power cylinder system for a reciprocating engine includes a piston 20 configured to move within a cylinder. A topmost groove 42 extends ...
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