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WO/2011/144826A1 |
The invention relates to an elastic fixing element for a piston (2) of a variable compression ratio engine (10), said fixing element consisting of at least one metal rod (15) held under tension between the piston (2) and the transmission...
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WO/2011/137747A1 |
An inner-and-outer tooth typed piston ring for sealing gas and a piston having the piston ring are disclosed. The piston ring includes a solid ring (2) with a cut. The solid ring (2) has an upper annular surface and a lower annular surfa...
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WO/2011/125133A1 |
Provided is a cylinder gasket which naturally has good sliding properties with respect to a cylinder, that does not require the application of silicon grease to a threaded hole into which a piston is screwed, that is not susceptible to t...
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WO/2011/115152A1 |
Provided is an aluminium alloy piston (64) for an internal combustion engine. In the internal combustion engine, the piston (64) moves back and forth in a sleeve (62) made of grey cast iron or an aluminium alloy. Further, the piston (64)...
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WO/2011/111488A1 |
A piston is housed in a cylinder tube, which has a central axis and an inner circumferential surface facing the central axis. The piston is configured from a first piston component and a second piston component, which join in the central...
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WO/2011/110607A1 |
The invention relates to a method for producing a composite material, in particular for using carbon pistons, wherein the material is established with respect to thermal expansion and/or heat conduction having an anisotropy of 5 to 50%, ...
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WO/2011/093106A1 |
The provided reciprocating engine (1) has a gas chamber (4) bounded by the inside surface (8) of a cylinder and a top ring (5), second ring (6), and second land (7) of a piston (2). At the beginning of a power stroke, a high-pressure com...
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WO/2011/074833A2 |
The present invention relates to a height-adjusting apparatus, and more particularly, to a pressure fluctuation type height-adjusting apparatus which can adjust the height of a bicycle saddle, a chair seat or the like through the variati...
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WO/2011/066821A1 |
The invention relates to pin bosses (1) of a piston (2) for an internal combustion engine, each comprising a pin bore (3) for supporting a piston pin (14). In order to reduce the tangential stresses in the zenith area of the pin bores an...
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WO/2011/053762A2 |
A piston for an internal combustion engine includes a piston crown having an outer cylindrical wall and connected to and above a body portion of the piston. The piston includes at least one piston ring seal groove formed in the outer cyl...
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WO/2011/052708A1 |
Disclosed is a method for producing a near-net-shape material for an engine piston, which comprises: a continuous casting step in which a cast rod (31) having a diameter of 85 mm or less is obtained by continuously casting a melt (30) of...
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WO/2011/029160A1 |
The invention provides a piston which allows pressure generated downstream from the piston to be used to ventilate a combustion chamber of a cylinder in which the piston is slidingly mounted. The crank assembly to which the piston is con...
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WO/2011/031535A2 |
A piston for an internal combustion engine has an upper crown portion with a pair of pin bosses depending therefrom, wherein the pin bosses have pin bores axially aligned along a central pin bore axis. A pair of laterally spaced skirt po...
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WO/2011/023145A1 |
A piston body comprises a sealing part (22) which includes a covering part (222) and a resilient frame part (221) provided inside the covering part (222). The piston body provided by the present invention improves mechanical performance,...
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WO/2011/018142A1 |
The invention relates to a bearing of a piston pin (11) in a piston (1) of an internal combustion engine, by way of which a connecting rod (2) is hinged to the piston (1). To this end, a piston shaft (8) is provided with two mutually spa...
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WO/2011/017581A2 |
A piston and method of construction are provided. The piston includes an upper crown having a combustion surface with an upper land depending therefrom and a lower crown having a pair of pin bosses that depend to a pair of laterally spac...
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WO/2011/015351A1 |
A method of creating a piston crown is disclosed. The method includes the step of providing a billet and then upsetting the billet in a first station to generally decrease a length of the billet and generally increase a cross section of ...
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WO/2011/002082A1 |
Disclosed is a process for producing a roughly shaped material for engine pistons, which comprises: a continuous casting step of continuously casting a molten aluminum alloy (30) at a melt temperature of 720˚C or higher to produce a cas...
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WO/2011/001017A1 |
The invention relates to a method of installing and turnably journaling a connecting rod (2) to a piston (1). The piston (1) is provided with a bearing member (3) having a curved bearing surface to be turnably engaged with an end part (2...
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WO/2010/142134A1 |
A piston for a crank and circular slider mechanism includes a head (1) and a piston seat (2) fixedly connected with the head, a circular slider holding hole (2-2) is placed in the piston seat, wherein a reinforcing sheet (3) is placed on...
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WO/2010/129388A2 |
A piston has an upper crown portion with an upper combustion wall against which combustion forces act and a lower crown portion with a pair of pin bosses spaced for receipt of a small end of a connecting rod therebetween. The upper crown...
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WO/2010/124894A1 |
The invention relates to a method for producing a piston for an internal combustion engine, wherein a section which in the finished piston has a cooling duct (14) and a piston ring groove is recessed at first, the later cooling duct is t...
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WO/2010/122349A2 |
A piston assembly (10) comprising: a piston (50); a drive rod (20) coupled to the piston for in use driving the piston; and a load transfer part (60) comprising a stiffening structure (61), the load transfer part enclosing at least a por...
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WO/2010/118223A2 |
A piston (10, 10') includes a piston body (12, 12') having an upper crown portion (16, 16') with an upper combustion dome (18, 18') against which combustion forces act. The underside of the upper combustion dome (18, 18') comprises an un...
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WO/2010/115010A2 |
A piston and cylinder assembly suitable for use in positive displacement machines (10) and capable of minimizing power losses resulting from friction and fluid leakage over a range of operating parameters. The piston (14) is reciprocably...
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WO/2010/106228A1 |
The invention relates to a piston pin (100) for attaching the piston (10) of a piston engine to the connecting rod (30), the piston pin including at its first end (120) and its second end (130) a first and a second affixing area for atta...
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WO/2010/097475A1 |
The invention relates to a piston (100) for an internal combustion engine. The piston has a surface on the combustion side (110) wherein a depression (130) having a depression edge (140) and a depression floor (132) is arranged in the su...
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WO/2010/099372A2 |
A piston has a piston body extending along a central axis. The piston body has an upper crown portion and a lower crown portion. The upper crown portion has an upper combustion wall and an at least one annular upper rib depending from th...
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WO/2010/096360A2 |
Pressure cycle operated apparatus and methods. A method of actuating a firing head includes the steps of : reciprocably displacing an actuator piston of the firing head, the displacing step including the piston being alternately pressure...
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WO/2010/084071A1 |
In a conventional piston, sufficient backlash must be provided between the piston and cylinder in order to prevent the piston from running against the cylinder upon advanced wear of the support ring due to the resulting transverse moveme...
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WO/2010/083861A1 |
The invention relates to an axial piston machine having bent axis construction, having a drive shaft rotatably supported in a housing and ending in a drive flange comprising a face on the drive shaft side, in which the ball races are for...
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WO/2010/080961A2 |
A reciprocating pump assembly has a pump within a housing. The pump has a crankshaft that rotates and a crosshead that is connected to a plunger via a pony rod. The plunger pumps fluid through cylinders in the pump. A connecting rod conn...
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WO/2008/080543A9 |
A piston pin (40) for connecting the small connecting rod eye of a connecting rod to a piston of a combustion engine and a method for manufacturing the piston pin. The piston has boss bores aligned with the small connecting rod eye for r...
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WO/2010/070198A1 |
The invention relates to a piston bearing arrangement for an internal combustion engine, including a piston (1) with at least an upper part (1a) and a lower part (1b) being tightly fixed to each other, and a connecting rod (2) having an ...
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WO/2010/011511A2 |
A piston (20) includes a piston skirt (30) extending along a longitudinal axis (L) and having a pair of convex outer surfaces (42) facing opposite one another. Each of the outer surfaces (42) include an oil reservoir (44) above the pin b...
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WO/2010/008785A2 |
A piston assembly and method of assembly thereof, a wrist pin, a piston, a connecting rod, and methods of construction thereof is provided. The assembly includes a piston body having a pair laterally spaced pin bosses with a feature to p...
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WO/2010/008362A1 |
A piston for internal combustion engine, compressor or the like, includes a piston ring, a piston skirt having a piston skirt wall. One or more lubricant channels and reservoirs are provided on an outer surface of the piston skirt. Lubri...
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WO/2010/002293A1 |
The present invention relates to a cooling structure for an internal combustion engine piston. Said piston comprising an oil cooling channel integrated in said piston. Said oil cooling channel having a bottom surface facing towards a top...
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WO/2009/144076A1 |
A piston pin having a DLC layer which contains less than 1 atom% of silicon and has a hydrogen content of from ≥ 20 to ≤ 65 atom%.
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WO/2009/139135A1 |
A hermetic compressor includes a closed vessel for storing lubricating oil, an electric-driving element, and a compressing element driven by the electric-driving element. The compressing element includes a cylinder block forming a compre...
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WO/2009/122640A1 |
Provided are an engine adapted so that sliding surfaces between a cylinder and a piston are less likely to seize on each other and the proportion of lubricating oil in mixed fuel can be reduced, and a piston capable of actively supplying...
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WO/2009/104030A2 |
Subject of this invention is a piston with support insert for machines equipped with a piston (1) that moves in a cylinder, where the piston (1) includes a support insert (4) that is connected to the crank by a pin and can move in the in...
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WO/2009/097060A1 |
A piston and connecting rod assembly includes a piston (14) having a bore (26) defined by an inner surface of the piston (14). The assembly also includes a connecting rod (30) having a bore (34) defined by an inner surface of the connect...
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WO/2009/076938A1 |
The invention relates to a pin boss (17) for a piston (10) for an internal combustion engine, the pin boss (17) having an inner boss surface (17a) and an outer boss surface (17b) and a boss bore (18) for accommodating a piston pin. The b...
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WO/2009/076380A2 |
A piston assembly and connecting rod therefor is provided. The connecting rod has an elongate body extending to an end for operable attachment to a piston. The end has a wrist pin bore extending between opposite sides of the body. The wr...
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WO/2009/068125A1 |
The invention relates to a piston (1) of an internal combustion engine made of steel guided in a cylinder jacket (2), said piston comprising a piston top (6) and a piston shaft. A piston base (7) transitions on the circumference into a f...
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WO/2009/046558A1 |
The invention relates to a device for lubricating the bearing points of a connecting rod (106, 206) comprising a bearing (10, 110, 210, 121, 221) on each of the small ends of the connecting rod (106, 206) and a counter-bearing that co-op...
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WO/2009/046187A2 |
A hybrid bearing cylinder having a composite sleeve and a metallic jacket positioned around the composite sleeve and secured thereto. The hybrid bearing cylinder is adapted to be secured to metallic cylinder end caps by threading, weldin...
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WO/2009/036592A1 |
An automobile engine assembly with multifunctional pistons is disclosed, wherein the multifunctional piston (5) means that one piston with two or more functions is provided in each cylinder of the internal combustion engine. Telescopic h...
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WO/2009/028128A1 |
[PROBLEMS] To provide a piston of an internal combustion engine having a skirt part which can keep the frictional characteristics for a long term while reducing the frictional resistance. [MEANS FOR SOLVING PROBLEMS] In a piston (1) of a...
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