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JP5719031B2 |
A piston ring that can maintain an excellent aluminum adhesion prevention effect over a long period in a high output engine is provided. One aspect of a piston ring according to the present invention is a piston ring in which at least on...
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JP5717069B2 |
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JP2015086757A |
To remove deposits attached on a top land part of a piston of an internal combustion engine.A piston device includes a piston 12 inserted into a cylinder of the internal combustion engine in a reciprocative manner, and having a top ring ...
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JP2015078752A |
To provide a piston ring for an internal combustion engine which can prevent aluminum adhesion for a long term in a condition of high temperature and heavy load, and can suppress abrasion loss of piston materials.In a piston ring for an ...
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JP2015511290A |
Pistons for internal combustion engines are provided. The piston includes a body having a tubular outer surface and has a ring belt region including an annular uppermost ring groove and a lower ring groove extending within the outer surf...
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JP2015068361A |
To suppress increase of friction with a cylinder and increase of oil consumption well balanced.A piston ring 108 is mounted to a peripheral groove 104c which is provided in the outer peripheral surface 104b of a piston 104 reciprocating ...
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JP2015068417A |
To provide a lamination hard film coated piston ring capable of being used in an environment with the high mechanical and thermal load of an engine, and excellent in scuff resistance, abrasion resistance and film exfoliation resistance, ...
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JP5695635B2 |
A steel composition which has good nitridability, in particular for the manufacture of piston rings and cylinder liners, contains the following elements in the following quantities expressed with respect to 100 weight % of the steel comp...
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JP2015059548A |
To provide a gas seal device of a combustion chamber of an engine, capable of enhancing gas seal performance of a pressure ring without narrowing a width L of an abutment clearance 5.In a gas seal device of a combustion chamber of an eng...
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JP5689735B2 |
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JP5685583B2 |
The invention relates to a gliding element of an internal combustion engine, especially a piston ring, having a DLC coating of the ta-C type which has at least one residual stress gradient.
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JP2015048944A |
To provide a piston ring for an internal combustion engine capable of preventing aluminum cohesion for a long time under high temperature and high load conditions.A piston ring 1 for an internal combustion engine includes a piston ring b...
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JP5683497B2 |
The invention relates to a steel material composition, in particular for producing piston rings and cylinder sleeves, containing the following elements in the given fractions in relation to 100% by weight of the steel material: 0.03-2.0%...
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JP2015507081A |
Piston rings made of cast iron provide improved machinability and very good performance with minimal cost. The cast iron contains 2.2 to 2.9% by weight of carbon, 3.2 to 4.2% by weight of silicon, 0.75 to 1.25% by weight of copper, and 1...
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JP5681252B1 |
To provide a piston ring for an internal combustion engine capable of preventing aluminum adhesion for a long period of time even under high temperature and high load conditions. The piston ring 1 for an internal combustion engine is a p...
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JP5678075B2 |
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JP5676146B2 |
To provide a price-competitive compression ring having excellent thermal conductivity and thermal sag resistance, which can be used in a high-thermal-load environment of high-compression-ratio engines, steel identified by the material nu...
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JP5669392B2 |
The invention relates to a steel material having a high silicon content, and to a method for the production thereof, the steel material being particularly suitable for piston rings and cylinder sleeves. In addition to iron and production...
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JP5668063B2 |
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JP5665030B2 |
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JP2015503072A |
The piston ring is formed from a ring blank, eg, a wire that is generally parallel and has a cross-sectional contour that includes upper and lower surfaces provided between the inner and outer peripheral surfaces. The cross-sectional con...
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JP5658585B2 |
A combined piston ring comprising a special gap effective for reducing blowby to have excellent gas sealability, comprising a piston ring body of a high-strength, heat-resistant resin comprising a step-shaped gap exposed on upper and low...
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JP2015502478A |
A piston ring (20) having a bottom surface (22), a top surface (24), an inner diameter surface (26) and at least one sliding surface (28) is provided. A wear protective coating (30), substantially entirely of cobalt, is applied to at lea...
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JP5650714B2 |
A steel material composition in particular for manufacturing piston rings and cylinder liners, which has a good nitriding capability, contains the following elements in the given proportion related to 100% by weight of the steel material...
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JP5642193B2 |
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JP5640088B2 |
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JP5636613B2 |
In a fluid pressure apparatus, a packing is constituted from an annular seal member made of an elastic rubber material, and support rings made of a material possessing low friction, which are mounted on an outer circumference of the seal...
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JP5632488B2 |
An oil scraper piston ring includes a ring body having two radial outer running webs on the ring body, which are arranged one behind the other in relation to the run direction of the piston and are spaced apart from one another by an ext...
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JP5630404B2 |
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JP5628030B2 |
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JP5629307B2 |
A sliding element, particularly a piston ring for an internal combustion engine, includes a substrate, and a wear-protection layer, obtained by thermal spraying of a powder comprising the element proportions 2-50 percent by weight iron, ...
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JP5627148B1 |
To provide a piston ring having different coating characteristics on an outer peripheral surface and a side surface, to maintain wear resistance for a long period of time, and to suppress adhesion of aluminum between a piston ring groove...
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JP2014209018A |
To provide a combination oil ring capable of preventing deposition of carbon sludge or the like among side rails and a spacer expander even if an internal combustion engine operates for a long period of time.A combination oil ring compri...
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JP5620794B2 |
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JP5621091B2 |
In a fluid pressure apparatus, a packing includes an annular seal member made of an elastic material, and support rings made of a low-friction material, which are mounted on an outer circumference of the seal member. The seal member incl...
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JP5618088B2 |
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JP5612703B2 |
SUMMARY Patent of Invention: "NITRIDED PISTON RING RESISTANT TO THE PROPAGATION OF CRACKS". This invention refers to the solution of problem of spalling of the nitrided layer in piston rings for Flex-fuel engines, without jeopardizing th...
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JP2014191529A |
To avoid a decrease in seal performance of a pressure reduction valve due to a flaw in a seal member provided on a side wall of a piston.An O ring 126 as a seal member is mounted in a slide region 119, coming into slide contact with a bo...
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JP5557850B6 |
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JP5587285B2 |
To prevent side rails and a spacer expander of a combination oil ring from sticking to each other. A combination oil ring (10) includes a pair of upper and lower side rails (11 and 12) and a spacer expander (13) arranged therebetween, th...
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JP5587278B2 |
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JP5587961B2 |
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JP5583207B2 |
The invention relates to a gliding element of an internal combustion engine, especially a piston ring, having a DLC coating of the ta-C type which has at least one residual stress gradient.
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JP2014521021A |
The invention relates to an oil scraper ring (1) for a piston (13) of an internal combustion engine, comprising several lamellae (2, 3), each having a joint (19, 19′), and a meander-shaped spacer spring (4) having a joint (17). In orde...
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JP2014149085A |
To provide a piston ring capable of holding excellent aluminium adhesion prevention effect in a high power engine for a long time.A piston ring according to one embodiment of the invention is a piston ring in which at least one of an upp...
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JP5575989B2 |
A combination of a cylinder 62 of an internal combustion engine and a piston ring 40 for sliding an inner periphery of the cylinder, wherein at least a sliding face of the cylinder is composed of an aluminum alloy including 8 mass% to 22...
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JP5574984B2 |
In a piston seal element and a deceleration structure including a piston seal element which has a deformation area delimited in the longitudinal direction of the seal element by frontal face areas and a sleeve surface area with at least ...
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JP2014519552A |
The present invention relates to an element (1) that works sliding, of an internal combustion engine and/or a compressor that undergoes friction and receives a coating of chrome nitride having an equiaxial morphology, with low porosity (...
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JP5560473B2 |
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JP5564099B2 |
To provide a combination of a cylinder made of a hypereutectic Al-Si alloy and a hard-carbon-coated piston ring both exhibiting excellent wear resistance, the piston ring is provided with a laminate coating at least on an outer periphera...
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