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WO/2012/052485 |
A piston (100) for a pneumatic system, wherein the piston (100) comprises a base body (102) having a bore (104) for receiving a piston rod, two sealing rings (108, 110) on opposing main surfaces of the base body (102), and a magnetic rin...
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WO/2012/034647 |
The invention relates to a semifinished product blank, which is suitable for the production of a steel piston (1) for internal combustion engines having cylinder crankcases made of light metal alloys. Such a steel piston (1) comprises at...
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WO/2012/024779 |
A non-rotating piston (10) for slidable and longitudinal displacement within a corresponding channel housing (12) defining a housing axis (28) thereof includes a body (20) having a polygonal section formed with a plurality of rectilinear...
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WO/2012/017590 |
This reciprocating engine (1) is such that high-temperature high-pressure combustion gas (12) above a piston (2) is introduced during the initial period of an expansion step from a gas path hole (23) provided at the upper portion (22) on...
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WO/2012/011150 |
Disclosed is a piston structure (20) provided with a shaft (21), at least one disc-shaped flange (22) penetrated by the shaft (21), and an annular sealing member (23) outwardly projecting from the outer peripheral surface of the flange (...
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WO/2012/010939 |
The invention relates to a hydraulic motor, including piston liners (A, B, C and D of figure A no. 07.07/12 and A, B, C, D and E of figure A no. 08.08/12) operating as double-acting cylinders, a hollow cavity being provided on the skirt ...
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WO/2012/001887 |
The present invention provides a piston for a spark-ignition engine, comprising: a land part 18, an upper surface part of which has a crown part 26 forming a combustion chamber; a pair of skirt parts 20 extending downward from a peripher...
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WO/2011/149414 |
A sanitary piston head with a body, said piston head having a fluid-contact end and a drive end and comprising a resilient sealing skirt arranged to provide sealing abutment against the inner wall of a cylinder when said piston head is i...
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WO/2011/144826 |
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/2011/137747 |
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/2011/125133 |
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/2011/115152 |
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/2011/110607 |
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/2011/111488 |
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/2011/097016 |
Ported engines with opposed pistons are coupled to a single crankshaft through rocker arm linkages. Each pair of opposed pistons is coupled to a single crankpin of the crankshaft. Each piston is coupled to a respective rocker arm linkage...
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WO/2011/093106 |
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/2011/074833 |
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/2011/074833 |
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/2011/066821 |
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/2011/053762 |
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/2011/052708 |
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/2011/053762 |
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/2011/029160 |
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/2011/031535 |
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/2011/031535 |
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/2011/023145 |
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/2011/018142 |
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/2011/015351 |
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/2011/017581 |
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/2011/017581 |
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/2011/001017 |
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/2011/002082 |
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/2010/142134 |
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/2010/129388 |
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/2010/129388 |
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/2010/124894 |
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/2010/122349 |
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/2010/122349 |
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/2010/118223 |
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/2010/118223 |
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/2010/115010 |
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/2010/115010 |
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/2010/080961 |
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WO/2010/106228 |
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/2010/099372 |
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/2010/097475 |
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/2010/099372 |
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/2010/096360 |
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WO/2010/096360 |
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/2010/094317 |
A piston chamber combination comprising a container type piston, communicating with an enclosed space, said enclosed space having an at least substantially constant volume.
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