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JP6200696B2 |
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JP2017161011A |
To provide a non-lubrication slide member which inhibits generation of metal fluoride during sliding to promote formation of a transfer film and thereby improve the wear durability and reduce manufacturing costs, and to provide a compres...
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JP6194808B2 |
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JP6195949B2 |
There is provided a piston ring which can sufficiently provide 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...
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JP2017155649A |
To reduce an oil consumption amount by properly preventing matching of abutment portions of ring members through a constitution is simple.A piston body 22 of a piston 20 includes a top ring groove 52 and a second ring groove 54 for mount...
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JP6192524B2 |
There is provided a piston ring capable of excellently securing both strength and sealing ability of a joint. In a joint 3, a side face 2a side of a body 2 has a first protruding part 13 from one butt end 11 toward the other butt end 12 ...
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JP6181905B1 |
The present invention provides the sliding member which can make compatible high abrasion resistance and tunic adhesion nature also under a severe sliding strip affair, without performing nitriding processing to a substrate. The hard tun...
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JP6159410B2 |
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JP2017101690A |
To provide a piston ring excellent in sealing property.The piston ring includes: an annular resin piston ring body 1 having one cut part 5 in the circumference thereof; and a metal elastic C-shaped ring 11 disposed at an inner peripheral...
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JP2017514928A |
The present invention comprises (A) a phenolic resin, (B) an epoxy resin having an epoxy equivalent of 600 to 4000, (C) at least one solid lubricant, and the total of the components (A) and (B). The present invention relates to a coating...
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JP6143916B2 |
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JP6144537B2 |
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JP6140260B2 |
A method for producing a piston ring for an internal combustion engine includes providing, a substrate and applying a coating by means of thermal spraying of a powder including solid lubricants on the substrate, having the elemental prop...
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JP6139605B2 |
To provide a piston ring free from microwelding to a piston while exhibiting excellent wear resistance in side surfaces, for a long period of use in a high-temperature, high-pressure environment, and its production method, a nitride laye...
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JP6138174B2 |
The present invention relates to coated sliding parts having coating systems which allow better sliding performance under dry and/or under lubricated conditions. The coating systems according to the present invention being characterized ...
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JP2017082818A |
To provide a piston ring material in which generation of freckles in structure of ingot can be suppressed.The piston ring material for an internal combustion engine contains, by mass, 0.70-1.00% of C, 0.2-0.6% of Si, 0.2-0.5% of Mn, 16-1...
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JP6123113B2 |
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JP6122901B2 |
Provided is a combined oil ring that further reduces engine oil consumption. A combined oil ring attached to an oil ring groove of a piston includes: a pair of upper and lower side rails each formed into a flat annular shape, and having ...
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JP6121146B2 |
A structure for mounting a piston ring mounted around a piston head of a piston is provided. The structure includes a ring groove formed along the piston head with a guide recess circumferentially formed in the ring groove in a certain s...
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JP6116548B2 |
A piston ring system, having an internal diameter >400 mm, for a piston of a two-stroke internal combustion engine, includes at least a first and a second piston ring each having a convex running surface with a crest of the convexity in ...
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JP6117301B2 |
The invention relates to a top piston ring (4) for use in a piston ring pack in a groove (3) in a piston (1) of a large two-stroke turbo charged uniflow-scavenged internal combustion engine with crossheads. The top piston ring comprises ...
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JP2017071006A |
To provide an assembling device and an assembling method for a piston ring by which a ring member such as a side rail or the like, which has a thin thickness and is easy to be deformed in a thickness direction, can be fitted with a good ...
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JP6112203B2 |
An iron-based sprayed coating for coating a bore inner surface of a cylinder block for an internal combustion engine. A coating surface contains pits, its pit amount is within a range of 0.01% to 2.1%, and an average roughness Ra of this...
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JP2017066868A |
To provide a piston structure of an engine, capable of improving the durability of a pressure ring and improving the heat radiation property of a piston.In a piston structure of an engine equipped with a piston 1 and a pressure ring 2, t...
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JP6109325B2 |
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JP6111267B2 |
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JP6110012B2 |
The present invention provides piston production device and piston production method capable of surely holding friction-resistant ring regardless of presence or absence of decrease in accuracy of outside diameter of holding pin. Device h...
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JP6101079B2 |
A multi-part piston ring, containing an at least single-part spring support which is provided with a piston ring joint region and an at least single-part spring element, which is positioned in a groove provided in the region of the inner...
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JP2017053469A |
To provide a slide member showing an initial rubbing effect and a repair effect of a specular state at its subsequent contact part.A valve lifter main body 100 of the invention has a crestal plane 110 and a skirt part 120 extending from ...
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JPWO2015052762A1 |
To provide a seal ring for a piston rig and a turbocharger, which has a hard coating having excellent crack resistance / peeling resistance and low attack resistance to the opponent. A hard coating is coated on at least one surface selec...
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JPWO2015052761A1 |
To provide a piston ring and a turbocharger seal ring having a hard coating having excellent crack resistance and peeling resistance. In piston rings and turbocharger seal rings in which a hard coating is coated on at least one surface s...
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JP6093866B2 |
There is provided a highly heat conductive piston ring for an internal combustion engine capable of exhibiting a gas seal function and a heat transfer function for a long period of time in a stable manner when used in an automobile gasol...
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JP6090303B2 |
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JP6093407B2 |
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JP6092259B2 |
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JP6087939B2 |
[Object] To provide a wire 1 for piston rings which is less likely to cause a width of an end gap 4 of a piston ring to be varied, is excellent in processability during coiling, and is obtained at low cost. [Solution] The wire 1 for pist...
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JP2017036823A |
To provide a piston ring which achieves reduction of oil consumption and low friction even when assembled to any cylinder liner.A piston ring includes: a base material; a first layer which is formed at the base material and hard; and a s...
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JP2017026054A |
To provide a piston ring having a gas tight type special abutment used in a large-sized Diesel engine for a ship or the like, which is excellent in a scuffing resistance characteristic and an oil film generation function, and enables sta...
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JPWO2014118827A1 |
The reciprocating engine 1 is located in the gas chamber 4 surrounded by the top ring 5, the second ring 6, the second land 7 and the cylinder inner surface 8 of the piston 2, and in the upper part 22 of the thrust side 10 of the cylinde...
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JP2017502219A |
The present invention is a sliding combination for use in an internal combustion engine, wherein at least one cylinder liner (2) having a tubular shape defining an inner sliding surface (3) and at least one outer sliding surface (5). The...
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JP6062357B2 |
The second compression ring is formed such that the outer peripheral surface shape has a tapered face, and the radial cross-sectional shape is a rectangular ring, a scraper ring, or a Napier ring, and has a piston ring base and a hard fi...
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JP6062382B2 |
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JP6063109B2 |
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JP2017009102A |
To provide a piston ring that reduces a blowby amount and oil consumption and prevents the occurrence of ring breakage over a long period of time, in an engine making internal pressure of a cylinder high.In a steel combination piston rin...
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JP6058026B2 |
The method involves applying stress to extensive closure of shock portion (2) over a control ring (1') along the circumferential direction. A defined force (F) is exerted toward a wall of control ring in the region of pushing portions (5...
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JP6057911B2 |
The invention relates to a sliding element, such as a piston ring, comprising a coating on at least one surface comprising, form inside to outside, a bonding layer, a metal DLC layer preferably containing tungsten, and a metal-free DLC l...
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JP2017003056A |
To provide a piston of an internal combustion engine including an oil ring capable of improving sealability while reducing tension.An oil ring 20 is mounted on a third ring groove 13 formed on a peripheral surface. For a piston 10 of an ...
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JP6048179B2 |
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JP6049151B2 |
A coated piston ring having a base body of chromium steel with more than 10 wt.-% chromium and having an inner circumferential surface, a first flank surface, a second flank surface and an outer circumferential surface. The first flank s...
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JP6042263B2 |
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