| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | PISTON RING AND METHOD FOR THE PRODUCTION THEREOF | US14376922 | 2012-05-16 | US20150091255A1 | 2015-04-02 | Wolfgang Issler |
| A piston ring for pistons of internal combustion engines, comprising a ring running surface coated with a coating agent, a ring back, and two ring abutting ends spaced apart by a gap. In the region of at least one of the ring abutting ends, a groove running in the circumferential direction is provided in the ring running surface, the groove being filled up with the coating agent such as to be flush with the coated ring running surface. | ||||||
| 102 | PISTON RING | US14233389 | 2012-10-29 | US20140225329A1 | 2014-08-14 | Toshikatsu Hayashi; Kouhei Sugimoto; Yoshinari Watanabe; Hayato Sasaki |
| [OBJECT]To provide a piston ring which, when used in a high-output engine, can sustain an excellent effect of suppressing aluminum adhesion, over a long period.[SOLUTION MEANS]Either or both the upper and lower sides of the piston ring are covered with a resin-based film containing a fibrous filler with a mean fiber diameter of 50 to 500 nm and an aspect ratio of 30 to 500. The fibrous filler content is 0.5 to 10 vol % with respect to the total resin-based film. Also, the fibrous filler used is at least one type from among carbon fibers, silica fibers and boron nitride fibers. | ||||||
| 103 | OIL CONTROL RING | US13980743 | 2012-01-23 | US20130291824A1 | 2013-11-07 | Norbert Feistel; Andreas Allenspach |
| The oil control ring (1) comprises a retaining ring (2) and a scraper (3) having a scraper fin (3a), wherein the scraper (3) is arranged in the retaining ring (2) in such a way that the scraper fin (3a) is oriented towards the center (1a) of the oil control ring (1) in order to scrape oil on a piston rod (6). The scraper (3) comprises a plurality of scraper segments (3e) which are arranged in succession in the circumferential direction (1b) of the oil control ring (1), and the retaining ring (2) has a groove (2b) for accommodating the scraper segments (3a) in a positive manner, and the retaining ring (2) has an abutment point (2g). The retaining ring (2) forms at least one plastic first end face (2d, 2e) which is oriented towards the center (1a) of the oil control ring (1). The scraper (3) is made of a harder material than the plastic forming the first end face (2d, 2e), the scraping fin (3a) of the scraper (3) has a contact point (3c) oriented towards the center (1a) and the scraper (3) and the retaining ring (2) are adapted to each other in such a way that both the at least one first end face (2d, 2e) and the contact point (3c) can lie against the piston rod (6). | ||||||
| 104 | ENGINE | US13760296 | 2013-02-06 | US20130207350A1 | 2013-08-15 | Hiroki KUWAYAMA; Takahiro YAMAZAKI; Yutaka ISHIGAKI; Hideyuki KOYAMA; Manabu MIYAZAKI; Yoshinori TANAKA; Keita NAITO; Hidetaka MORINAGA |
| An engine in which an oil consumption and a leakage of blow-by gas can be stably reduced for a long period of time. The engine includes a first land (3), a first ring groove (4), a second land (5), a second ring groove (6), a third land (7), a third ring groove (8), and a piston skirt (9) formed on a piston peripheral wall (1) in the above-recited order from a side of a piston head (2). A first pressure ring (10) is fitted in the first ring groove (4). A second pressure ring (11) is fitted in the second ring groove (6), an oil ring (12) fitted in the third ring groove (8), and an indentation (13) is formed at the second land (5). | ||||||
| 105 | COMPENSATING AND SEALING RINGS FOR PISTONS OF ENGINES, COMPRESSORS, EXHAUSTERS AND PUMPS | US13466548 | 2012-05-08 | US20130119614A1 | 2013-05-16 | Jairo Antunes De Oliveira |
| COMPENSATIVE AND SEALING RINGS FOR PISTONS OF ENGINES, COMPRESSORS, EXHAUSTERS AND PUMPS, invention patent for piston rings according to the title, being the compensative subdivided in models AC1 (picture 1), AC2 (picture 6), AC3 (picture 12) and AC4 (picture 15), characterized by indents and saliencies or bosses that fit on their ends (pictures 1 and 6) and overlays (composed rings as seen in pictures 1, 6, 12 and 15), and the Sealing Rings subdivided in models AVCE1 (picture 20), AVCE2 (picture 27), AVCE3 (picture 33), AVCE4 (picture 40), AVCE5 (picture 45) and AVCE6 (picture 53), characterized by fitting in built-in grooves unified to the conventional, thus sealing the oil and gases escape. They are endowed with self-propulsive force or are impelled or driven by the propelling spring ring. | ||||||
| 106 | Internal Combustion Engine | US13622293 | 2012-09-18 | US20130014725A1 | 2013-01-17 | Richard F. Chipperfield |
| In an engine, blow-by is substantially eliminated and friction is significantly reduced using one or more combinations of non-metallic rings. By substantially eliminating blow-by and by reducing friction, certain engine parameters may be changed. In addition, by substantially eliminating blow-by and by reducing friction, pollution may be reduced, fuel economy may be increased and power may be increased. | ||||||
| 107 | Internal combustion engine | US11702033 | 2007-02-01 | US08267062B2 | 2012-09-18 | Richard F. Chipperfield |
| In an engine, blow-by is substantially eliminated and friction is significantly reduced using one or more combinations of non-metallic rings. By substantially eliminating blow-by and by reducing friction, certain engine parameters may be changed. In addition, by substantially eliminating blow-by and by reducing friction, pollution may be reduced, fuel economy may be increased and power may be increased. | ||||||
| 108 | PISTON DEVICE FOR INTERNAL COMBUSTION ENGINES | US12641706 | 2009-12-18 | US20100162987A1 | 2010-07-01 | Masao ISHIDA |
| A piston device for internal combustion engines includes a first compression ring and a second compression ring in an outer circumference of a piston, wherein the second compression ring includes a notch extending from the inner circumference to the outer circumference on a lower surface of at least one of a pair of ends of the ring, and a gap between the ring ends at the notch on the second compression ring is larger than a gap between the ring ends of the first compression ring, and a gap between the ring ends at the section other than the notch on the second compression ring is the same or smaller than the gap between the ring ends of the first compression ring, and the second compression ring contains an outer circumferential surface comprised of a tapered surface decreasing the ring radial thickness towards the upper side, and an axial parallel surface formed below the tapered surface. Instead of the axial parallel surface, the second compression ring may utilize a tapered surface with a taper angle smaller than the taper angle of the above tapered surface; or may utilize a tapered surface decreasing the ring radial thickness towards the lower side. | ||||||
| 109 | Internal combustion engine | US11702033 | 2007-02-01 | US20070193553A1 | 2007-08-23 | Richard Chipperfield |
| In an engine, blow-by is substantially eliminated and friction is significantly reduced using one or more combinations of non-metallic rings. By substantially eliminating blow-by and by reducing friction, certain engine parameters may be changed. In addition, by substantially eliminating blow-by and by reducing friction, pollution may be reduced, fuel economy may be increased and power may be increased. | ||||||
| 110 | Internal combustion engine | US11702022 | 2007-02-01 | US20070193551A1 | 2007-08-23 | Richard Chipperfield |
| In an internal combustion engine, blow-by is substantially eliminated and friction is significantly reduced using one or more combinations of non-metallic rings. By substantially eliminating blow-by and by reducing friction, certain engine parameters may be changed. In addition, by substantially eliminating blow-by and by reducing friction, pollution may be reduced, fuel economy may be increased and power may be increased. | ||||||
| 111 | METHODS AND APPARATUS FOR OPERATING AN INTERNAL COMBUSTION ENGINE | PCT/US2007065646 | 2007-03-30 | WO2007115176A3 | 2008-06-05 | SOUL DAVID F |
| A piston ring assembly for an internal combustion engine is provided. The piston ring assembly includes a plurality of seal rings, i.e., a first seal ring and a second seal ring. The seal rings are positioned on at least a portion of a piston crown periphery axially and radially adjacent to each other within the internal combustion engine and at least a portion of the first seal ring at least partially extends over at least a portion of the second seal ring. | ||||||
| 112 | PISTON FOR AN INTERNAL COMBUSTION ENGINE | US15747761 | 2016-07-19 | US20180216570A1 | 2018-08-02 | Frank Ehmann; Thomas Hettich; Sebastian Mangold; Aziz Goezcue |
| A piston for an internal combustion engine including a piston crown and a combustion chamber recess recessed therein, the combustion chamber recess including a recess edge. The piston may also include a ring groove for receiving a piston ring. The piston may further include a cooling duct having a smaller spacing from the piston crown than that of a flank of the ring groove, the cooling duct defining a minimum spacing from the piston crown at a first location, and a minimum spacing from the combustion chamber recess at a second location. The cooling duct may have a rounded portion between the first location and the second location. The cooling duct may have a maximum spacing from the recess edge at a third location. The rounded portion may have a rounding radius defined at least at the third location that is greater than 4% of a piston diameter. | ||||||
| 113 | Sliding member and piston ring | US15736392 | 2017-02-28 | US10036472B2 | 2018-07-31 | Masaki Moronuki |
| Provided is a sliding member capable of achieving excellent wear resistance and high coating adhesion under harsh sliding conditions without subjecting a base member to nitriding treatment. The sliding member includes a base member made of a steel material and a hard coating that is formed on the base member and having a surface serving at least as a sliding surface. The hard coating has a Young's modulus having a distribution to increase first in a depth direction directed from an interface between the hard coating and the base member to the surface, to become maximum at a predetermined depth, and then to decrease in the depth direction directed from the interface to the surface. | ||||||
| 114 | PISTON RING | US15739347 | 2016-07-29 | US20180180182A1 | 2018-06-28 | Takuya OZAKI; Hiroyuki SUGIURA |
| To provide a piston ring comprising a hard carbon film that is easy to form and exhibits excellent wear resistance. The above-described problem is solved by having a hard carbon film 4 formed on at least an outer peripheral sliding surface 11 of a piston ring base material 1, wherein the hard carbon film 4 is a laminated film comprising a plurality of layers, and is configured so as to contain boron within a range of an atomic density of 0.2×1022 atoms/cm3 to 2.0×1022 atoms/cm3 inclusive. This hard carbon film 4 may be configured to have an sp2 component ratio within a range of 40% to 80% inclusive, measured in a TEM-EELS spectrum formed by combining electron energy loss spectroscopy (EELS) with a transmission electron microscope (TEM), and a hydrogen content within a range of 0.1 atom % to 5 atom % inclusive. Further, a total thickness of this hard carbon film 4 may be configured to be within a range of 0.5 μm to 20 μm inclusive. | ||||||
| 115 | PISTON RING AND MANUFACTURING METHOD THEREFOR | US15739344 | 2016-07-29 | US20180180181A1 | 2018-06-28 | Takuya OZAKI; Hiroyuki SUGIURA |
| To provide a piston ring comprising a hard carbon film that is easy to form and exhibits excellent adhesion and wear resistance, and a manufacturing method therefor. The above-described problem is solved by means of a piston ring comprising a hard carbon film 50 formed on at least an outer peripheral sliding surface 11 of a piston ring base material 1, wherein the hard carbon film 50 is a laminated film comprising a plurality of layers, including an upper layer 5 with a lamination pitch within a range of 3 nm to 50 nm inclusive, a middle layer 4 with a lamination pitch less than that of the upper layer 5, and a lower layer 3 with a lamination pitch within the same range as that of the upper layer 5 and greater than that of the middle layer 4. This hard carbon film 50 may be configured to have an sp2 component ratio within a range of 35% to 80% inclusive, measured in a TEM-EELS spectrum formed by combining electron energy loss spectroscopy (EELS) with a transmission electron microscope (TEM), and a hydrogen content within a range of 0.1 atom % to 5 atom % inclusive. | ||||||
| 116 | COMBINED OIL CONTROL RING | US15564954 | 2016-04-08 | US20180094726A1 | 2018-04-05 | Hiroshi SHIMIZU; Hiroyuki YABUNE |
| To provide a combined oil control ring comprising a pair of upper and lower side rails and an axially corrugated spacer expander having upper and lower portions for automobile engines, which is capable of keeping an excellent oil-controlling function without sticking between a spacer expander and side rails even in a long period of engine operation, the upper and lower portions of the spacer expander have tabs pushing inner peripheral surfaces of the side rails, projections supporting the side rails, and intermediate portions between the tabs and the projections; each intermediate portion opposing the side rail has at least one groove extending in a substantially circumferential direction is recessed when viewed along a radial direction. | ||||||
| 117 | PISTON RING | US15557797 | 2016-02-15 | US20180080556A1 | 2018-03-22 | Daisuke SATO; Shuichi KAMURA |
| Provided is a piston ring excellent in peeling resistance, wear resistance, and thermal conductivity. A piston ring 1 includes: an annular main body 2 having a pair of side faces 2a and 2b, an outer peripheral face 2d, and an inner peripheral face 2c; and a hard coating 11 provided on the outer peripheral face 2d. When a width of the main body 2 in a first direction D1 perpendicular to the pair of side faces 2a and 2b is set to h1 mm, a width of the hard coating 11 in the first direction D1 is set to W mm, and a thickness of the hard coating 11 in a second direction D2 perpendicular to the outer peripheral face 2d is set to L mm, the following Formula (1) is satisfied: 0.003≦(L·h1)/W≦0.151 (1) | ||||||
| 118 | Sliding assembly | US14907274 | 2014-07-23 | US09915220B2 | 2018-03-13 | Antonio E. Meirelles Tomanik |
| A sliding assembly for utilization in an internal combustion engine may include at least one piston ring and a cylinder head provided with a through cavity defining an internal surface. The internal surface may define a TDC portion in a proximity of a top dead center, a central portion, and a BDC portion in a proximity of bottom dead center. The TDC portion, central portion, and BDC portion may present surface finishes having a first roughness, a second roughness, and a third roughness, respectively, each defined by a structure of recesses and projections, at least one of which may be substantially uniform. The second roughness may be less than the first roughness value. The piston ring may present at least part of a contact surface upon which a ceramic coating may be applied by a physical vapor deposition. | ||||||
| 119 | Combination oil ring | US15034657 | 2015-03-30 | US09784369B2 | 2017-10-10 | Hironori Fujita; Kentaro Kawano |
| In a combination oil ring, when a line passing through a center of a segment width is a first intermediate line, a length of a line segment between a position on an engine combustion chamber side and a position on a side distant from the engine combustion chamber on a contour curve at a position at a distance of 3 μm from an outer peripheral vertex toward an inner peripheral side in a segment radial direction is L, and an intermediate line of the line segment L is a second intermediate line, the second intermediate line is located on the side more distant from the engine combustion chamber than the first intermediate line, and the outer periphery vertex of the segment is located on the second intermediate line or on the side more distant from the engine combustion chamber than the second intermediate line. | ||||||
| 120 | PISTON RING SET FOR INTERNAL COMBUSTION ENGINE AND SYSTEM AND METHOD THEREOF | US15082766 | 2016-03-28 | US20170276246A1 | 2017-09-28 | Frank M. Graczyk; Farhan F. Devani; Edward J. Cryer, III |
| A piston ring set for internal combustion (IC) engine is provided. The IC engine includes a cylinder having a liner and a finish on the liner. A piston having a crown and a set of grooves is disposed in the cylinder. A set of piston rings is disposed in the set of grooves. The piston rings are disposed in order from closest to the crown and include at least a first compression ring having free ends defining a first end gap, a second compression ring having free ends defining a second end gap. A nominal value of the first end gap of the first compression ring is greater than a nominal value of the second end gap of the second compression ring. | ||||||
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