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WO/1994/008152A1 |
The disclosed cover comprises a substantially cylindrical hollow body (2), an elastic compensating membrane (3) and a compensating spring (16). The hollow body (2) has at one of its ends (C_) an inlet to which is coupled the functional e...
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WO/1994/000706A1 |
A fluid pressure cylinder comprising a cylinder tube (4, 31) and an end plate (2, 3, 30) being mounted into each side thereof, the end plates (2, 3, 30) being produced from a synthetic material are positioned inside the cylinder tube (4,...
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WO/1993/023675A1 |
A composite cylinder constructed from a cylindrical liner (12) having an outer surface (18) which is dome shaped adjacent each end. A plurality of layers (30) of resin impregnated carbon filaments are wound on the outer surface (18) of t...
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WO/1992/004562A2 |
A sealing device placed between a cylinder head (1) and a cylinder (2) and composed of a thin detachable cylindrical lining (7) fitted in a bore formed in a block (4), comprises a raised portion (h) before the cylinder head is adjusted a...
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WO/1992/004562A1 |
A sealing device placed between a cylinder head (1) and a cylinder (2) and composed of a thin detachable cylindrical lining (7) fitted in a bore formed in a block (4), comprises a raised portion (h) before the cylinder head is adjusted a...
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WO/1991/014117A1 |
A hollow cylinder characterized by comprising end plates and a hollow cylindrical member (18) formed of a plurality of interengaging modules (1), preferably of extruded metal construction, each extending parallel to the axis of said cyli...
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WO/1991/005187A1 |
A fastening device for actuating cylinders with longitudinal stringers (2, 3) extending axially along a cylinder tube (1). A fastening yoke, e.g. comprising two halves (6a, 6b), is clampable with the aid of at least one clamping screw (8...
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WO/1990/015237A1 |
A cylinder liner for the internal-combustion engine, in which a deck of the cylinder block (1) into which a mid-stop liner (4) is inserted is divided into two parts (2, 3) and sealing of cooling water is conducted at points (5, 7 and 6, ...
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WO/1990/006215A1 |
A perforator has a perforating disk (10) rotatively mounted in an U-shaped support (13). The support (13) can be moved in and out of the path of the parts to be perforated by means of a piston-cylinder (23) unit movable in either directi...
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WO/1989/012769A1 |
The invention relates to a working cylinder comprising a cylinder unit with a front end part (4), a rear end part (15) and a cylinder tube (12) connecting these end parts, a piston (5) movable in the cylinder tube (12) and a piston rod (...
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WO/1989/009712A1 |
The hydraulic cylinder includes a main body (10a) defining a central axial bore (10b), in which a piston is mounted for axial movement, and an external appendage (10k) on said main body. The main body (10a) has a cylindrical wall thickne...
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WO/1989/008797A1 |
A dynamic seal or bearing interface having a surface comprising: a first interface area (24) which, as it wears, provides a first amount of surface roughness which provides asperity tip load support (at 28); and a second interface area (...
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WO/1989/004931A1 |
A cylinder unit has a cylinder portion (1) in which a piston provided with a piston rod (3) is reciprocally movable under the influence of a pressure medium which is supplied to the cylinder portion (1). In order to provide reliable guid...
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WO/1988/008925A1 |
The invention relates to cylinder for piston engines and to a process for its production. The cylinder bore is characterized by its surface being aluminum-oxide ceramic of 3.85 - 3.95 g/cm3 density, containing 0.2 - 3.0 mass% calcium- an...
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WO/1988/008097A1 |
The invention relates to a working cylinder, such as a hydraulic cylinder, which comprises a cylinder part with two end portions (1, 2) and an interconnecting cylinder pipe (3). The object is to provide a new working cylinder which can b...
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WO/1988/001357A1 |
Closure arrangement, in particular for use in the closing of open ended cylinders. An end cap (20) or plug (50) is used to close the end of a cylinder (10), the cap (20) or plug (50) being locked in place by a flexible locking member (32...
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WO/1987/005076A1 |
The piston engine consists of a cylinder block with at least one cylinder in which the piston, equipped with at least one piston ring and connected with the crankshaft, is arranged to move up and down. In order to take account, in the en...
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WO/1987/001317A1 |
A cylinder lining device is produced by isostatic radial compression of a powder into a pressed body and sintering the body. The powder is compressed into the shape of a pressed body unit comprising at least two mutually integral cylinde...
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WO/1986/005550A1 |
The design and construction of present midsupported liner and multipiece block engines has caused increased manufacturing cost and reduced engine reliability. The present invention overcomes these engine construction problems by using an...
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WO/1986/004113A1 |
A light metal, e.g. aluminium alloy, cylinder liner (10) is produced by squeeze forming to incorporate woven glass fibre strengthening elements (18) in the metal matrix of the liner during the squeeze forming operation. Said elements (18...
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WO/1986/001434A1 |
Combined hydrostatic/hydrodynamic bearing system for a grinding apparatus in which the material is ground in a grinding space defined between a pair of relatively rotating grinding members and in which at least one of the grinding member...
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WO/1984/003742A1 |
Braking and holding device for displaceable rods such as the rods (4) in telescopic positioning and holding devices in which the rod is required to be braked in conjunction with its displacement for the purpose of extending or retracting...
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WO/1984/000591A1 |
A fluid cylinder in which the cylinder tube (14) has two internal cross-sections, a first cross-section (A) which receives the piston (10) and a second cross-section (B) which receives the piston rod (12) in guiding relationship.
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WO/1984/000585A1 |
A fluid - operated piston and cylinder device (10, 12) which is inexpensive to manufacture and which has at least one groove (32) in the inner wall of the cylinder (10) which permits flow of working fluid back and forth between opposite ...
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WO/1983/003261A1 |
The friction surface of a portion within the combustion chamber of a piston combustion engine, particularly the friction surface of a cylinder sleeve and/or a piston segment, is provided by locally melting and rapidly cooling a 0.5 - 8 m...
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WO/1983/002306A1 |
A pressure fluid cylinder without a piston rod and of the kind having a slotted cylinder tube (1) and a piston displaceable therein, said piston being connected to a movement transfer device, which extends radially through the slot. The ...
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WO/1983/001811A1 |
The hydraulic jack comprises a casing (1) with a face cover (2) and a back cover (3) and a piston rod (4) moving in relation to each other, on which rod there are provided a sealing element (7) and at least two grooves to form a correspo...
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WO/1982/002234A1 |
A method for reducing friction between relatively sliding members (1-3, 15-17) which are subject to a relative lateral force (F). One member is given a slight rotation (R) about an axis substantially perpendicular to the direction of sli...
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WO/1982/001493A1 |
Advantageous process for manufacturing a hollow machine cylinder subjected to a strong erosion and a high pressure, utilized in particular in machines working plastic materials. A blank is formed by forging and hot-rolling a starting bla...
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WO/1981/000117A1 |
A sliding material which has enough abrasion resistance, baking resistance, scuffing resistance, and intimate adhesion properties to be suited for use as a sliding surface of a piston ring or a cylinder liner for internal combustion engi...
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WO/1979/001103A1 |
An article, for example a piston for an internal combustion engine is formed of two or more layers of different material compositions in which there is a controlled graded change of composition between layers or within at least one of th...
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JP7464345B2 |
To provide an internal combustion engine in which fuel economy has been improved due to friction reduction by reducing the diameter of a crank journal.An internal combustion engine has a monoblock structure in which a cylinder head 2 and...
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JP2024047730A |
An object of the present invention is to reduce friction between a cylinder bore and a piston without excessively increasing piston slap. A cylinder bore 1 for an internal combustion engine has a sliding surface on which a piston slides....
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JP7463049B2 |
The present invention relates to a cylinder and a large diesel engine for a DC scavenging large-scale two-stroke diesel engine. There is provided a cylinder for a DC scavenging large two-stroke diesel engine comprising: a piston arranged...
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JP7437607B2 |
To provide a thermal spray coating capable of achieving excellent wear resistance without increasing a tact time when manufacturing the thermal spray coating and requiring a high frequency heating device, and a thermal spray material use...
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JP7419731B2 |
To suppress intrusion of a combustion gas into a gap between an upper end surface of a cylinder liner and a base metal of a cylinder block.A cylinder block 1 for an engine is casted and fixed to a cylinder base metal A in which a cast-ir...
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JP7418137B2 |
A rotary joint for connecting a stationary body to a rotating body. The rotary joint has a rotatable wear plate connectable to the rotating body and a seal ring seated in the wear plate. A spring-biased piston engages the seal ring again...
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JP2024003920A |
An object of the present invention is to provide a cylinder block for a reciprocating engine and a sliding member for a cylinder, which are lightweight and recyclable while ensuring necessary sliding characteristics (wear resistance, scu...
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JP7409466B1 |
An object of the present invention is to suppress consumption of lubricating oil while suppressing an increase in surface pressure acting on an inner wall surface. [Solution] The internal combustion engine 1 has a piston 30 that reciproc...
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JP7369253B2 |
Provided is a cylinder having grooving in a cylinder inner circumferential surface. The grooving includes a honed groove and a recessed groove having a larger groove width and a larger groove depth than the honed groove. The honed groove...
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JP2023139889A |
To provide a diaphragm structure capable of suppressing rotation of a diaphragm with axial rotation of a shaft body by a simple constitution in comparison with a diaphragm structure in which the rotation of the diaphragm with axial rotat...
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JP2023139888A |
To provide a diaphragm structure in which abrasion powder hardly generates on a peripheral face of a shaft body, in comparison with a constitution in which the shaft body is not rotated in a circumferential direction by fitting a pin ove...
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JP7343843B2 |
To provide a slide mechanism with a cylinder bore, which suppresses abrasion of a piston ring covered with a hard coating containing carbon as a main component.A slide mechanism comprises a cylinder bore having an iron-based thermal spra...
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JP7342998B1 |
An object of the present invention is to provide an internal combustion engine that can reduce heat loss even when a ring member is provided. [Solution] An internal combustion engine 1 includes a cylinder 10 in which a piston 15 reciproc...
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JP2023117543A |
To enable both of enhancement of output of an engine and enhancement of cooling efficiency of a portion on a top dead center side of a cylinder liner.An engine 100 includes a cylinder block 1 having a through hole 11 and a cylinder liner...
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JP7330188B2 |
A large slow-running two-stroke engine and a method of lubricating the engine with an injector (4) that comprises an internal electrical pumping system (21) for pressurising lubricant for ejection, for example a solenoid coil (23) with a...
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JP7309110B2 |
An engine system includes a variable compression device having a fluid chamber to which a pressurized working fluid is supplied so that a piston rod connected to a piston is moved in a high compression ratio direction, a supply device th...
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JP7295308B1 |
A cylinder liner and a reciprocating mechanism equipped with the cylinder liner are provided that can improve recycling performance, achieve further weight reduction, and thereby improve environmental performance. A cylinder liner provid...
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JP7284700B2 |
To provide a sliding mechanism capable of reducing an abrasion amount of a hard carbon coating upon combining a first member formed with an iron-based thermal spray coating containing high chromium and a second member formed with the har...
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JP7271238B2 |
To provide an engine cylinder structure, which may reduce the amount of oil remaining in an oil ring of a piston when an engine is stopped, while avoiding uneven wear on an inner peripheral surface of the cylinder of the engine in which ...
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