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WO/1997/028386A1 |
A piston for operation of a hydraulic brake produced in a cold-forming process, for example a deep-drawing process, has a relatively thin outer wall (4) which has a cross-section smaller than the desired contact surface (A) for the conta...
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WO/1997/028369A1 |
A connecting rod/piston assembly for an engine or compressor cylinder, wherein the connecting rod comprises a big end portion (11) arranged at one end of the connecting rod body (10) and pivotably connected to the crankpin, and a small e...
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WO/1997/024520A1 |
The invention concerns a light-metal piston which has a sheet-metal cooling channel integrally cast in the piston head. In order to improve the heat transfer between the piston material and the cooling channel and to reduce the manufactu...
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WO/1997/022820A1 |
In a piston-cylinder assembly with a shaftless piston (1), the aim is to improve the lateral guidance of the connecting rod, to reduce edge wear and the seizing tendency in the event of fault during the combustion process. Consequently, ...
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WO/1997/021946A1 |
The invention relates to a device for locking against rotation a piston (1) on a piston rod (5), for example in a hydraulic or pneumatic cylinder. The piston (1) is provided with at least one radial through-hole (15), which is intended t...
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WO/1997/018394A1 |
The invention relates to a device with at least two drive cylinders in each of which a first piston with a forward connecting rod is movable and where the first pistons are coupled together, said first pistons have a rear connecting rod ...
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WO/1997/013396A2 |
In a reinforcing component made from austenitic iron which is bonded intermetallically with an engine component made from an aluminium-base alloy, in particular a piston, the aim is to improve the strength of the bond irrespective of the...
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WO/1997/013597A2 |
The aim is to improve the strength of an intermetallic bond between engine component made from an aluminium alloy and a reinforcing element made from austenitic cast iron. For that purpose, the reinforcing element is annealed in a decarb...
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WO/1997/012163A1 |
A cooling oil chamber (5) comprising an annular groove is provided in a lower surface (2b) of a crown portion (2a) of a piston main body (2). A ceiling wall (61a) of an inverted cup-shaped inner sleeve (61) fitted in a skirt portion (2c)...
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WO/1997/010450A1 |
The heat conductivity of a plastic brake piston (1) for a disc brake is improved in that the piston has an insert (8) of a metallic material extending from a first (6) to the second end (7) of the brake piston (1).
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WO/1997/007077A1 |
A piston (18) and cylinder/sleeve (30) pair for an internal combustion engine. The pair has low coefficients of thermal expansion for closer parts tolerances without the danger of seizing and/or breakage/cracking inherent with prior art ...
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WO/1997/003116A1 |
Polyimide compositions can be substantially improved by incorporating in the composition an inorganic, low hardness, thermally stable, sheet silicate, such as muscovite mica, talc, and kaolinite, which results in improved wear resistance...
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WO/1997/002418A1 |
In this piston, portions to which load is applied are avoided, portions where the discontinuation of an oil film easily occurs are selected, and an oil groove (5) is formed in the surface of a skirt portion (3) on thrust and opposite-to-...
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WO/1997/001035A1 |
A piston compressor (1) is disclosed, in particular for domestic refrigeration machines, having at least one cylinder (2), in which a piston (3) is arranged to move axially, which piston is connected by way of a bolt (7) to a connecting ...
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WO/1996/038683A1 |
In an arrangement of piston and connecting rod for internal combustion engines, the ball-shaped big end of the connecting rod is slidingly mounted in a depression shaped as a spherical segment of the lower side of the piston top and in a...
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WO/1996/037719A1 |
The proposal is for a piston axially movable in a working cylinder with a connecting rod fitted to rotate on the piston perpendicularly to the axis of the working cylinder, in which the piston (1) has a cut-out (7) in the shape of an ope...
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WO/1996/020340A1 |
The invention concerns a method of producing a one-part piston (6) which, in the region of the piston ring zone (3), has a closed cooling duct (8) and a recess (7) between the piston ring zone (3) and the box-shaped piston body (4). The ...
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WO/1996/016284A1 |
Recesses running towards the drilling axis are made in the drillings of the bosses on either of the upper peak of the bosses in a light-metal piston to relieve stresses in the piston head.
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WO/1996/015369A1 |
Piston compressor for compressing gas, comprising a frame with at least one cylinder which has an essentially horizontal axis, a piston which is reciprocable in the cylinder, a piston rod which at one end thereof is fixed to the piston, ...
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WO/1996/010706A1 |
A device including a first moving part such as a piston (1) and a second moving part such as a connecting rod (2) with a coupling part (4) therebetween. A low-pressure compressible liquid lubricant feed system delivers a liquid into a ch...
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WO/1996/007841A1 |
In a light-metal piston for highly stressed internal combustion engines with a combustion chamber in the piston head, in order to keep the stresses at the edge of the combustion chamber low without unnecessarily increasing the stresses i...
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WO/1996/006272A1 |
A multi-part piston assembly (10) for an internal-combustion engine having at least one cylinder. The assembly has a skirt (16) with a threaded member connected thereto, the skirt being adapted to fit into the cylinder for reciprocal mov...
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WO/1996/003601A1 |
The piston-connecting rod unit with an adjustable connecting-rod has, inside the piston (1) skirt, the holder (2) of the socket (3) of the ball (4) installed on the shaft (5) having, on the opposite side of the ball, a thread fixing the ...
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WO/1995/030847A1 |
An object of the invention is to provide a construction for a crank device for performing power conversion between a reciprocating linear motion and a rotary motion, which construction provides a good dynamic balance and power transmissi...
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WO/1995/024575A1 |
Wrist pin for a two-piece piston, presenting a constant cylindrical external surface (41) and an internal surface with an internal diameter, varying throughout the length of the pin (40), in order to produce end portions of the pin havin...
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WO/1995/019515A1 |
A self-aligning piston assembly (13) has a piston member (14) having a sidewall (19) for slidable displacement within a bore (12), the piston member having (14) an inner curved surface (22), the piston assembly (13) having an inner race ...
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WO/1995/016154A1 |
An accumulator piston is formed as a two-piece plastic molding for simplifying its construction and for cost reduction and weigth reduction purposes. The piston has a radially stepped construction in which each step includes a radial fla...
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WO/1995/015433A1 |
In reciprocating pistons, in particular made of light metal, for internal combustion engines, and having in the piston head a closed cooling oil ring-shaped channel with an inlet and at least one outlet, the cooling oil is sprayed from t...
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WO/1995/013190A1 |
A method and apparatus for sizing a piston (10) to a defined sized outer diameter surface, which is the contact surface with the cylinder of an internal combustion engine. The method involves first measuring each piston (10), then calcul...
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WO/1995/013191A1 |
A piston (1) having a defined sized outer diameter. The piston (1) has a defined, coated surface which determines the specific outer diameter of such surface which is the contact surface with the cylinder of an internal combustion engine...
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WO/1995/008705A1 |
An adjustable length connecting rod assembly (10) for an internal combustion engine (76) provides prolonged periods of substantially constant combustion chamber volume. A rotatable disk (22) mounted in the upper sleeve end (20) of a conn...
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WO/1995/005553A1 |
A light metal piston for highly stressed internal combustion engines has a combustion cavity in the piston head. In order to keep low the stresses at the edge of the combustion cavity without unnecessarily increasing the stresses in the ...
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WO/1995/004880A1 |
A piston for diesel engines is made of a toughness-increasing aluminium alloy containing copper, nickel, silicon, magnesium, iron and manganese. The use of this material, which can conventionally be chill-cast, and by applying special di...
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WO/1995/001300A1 |
A barrier (10) for use in a pressurized container (22) comprising a unitary flexible and expandable member (11) having an outer wall segment (12) terminating in a sealing flange (16) and an inner wall segment (14) joined to the outer wal...
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WO/1994/028297A1 |
The design and construction of past piston assemblies having a wrist pin bolted to a connecting rod had excessive structural components requiring more complex machining procedures and tooling. Additionally, the loading and bolting patter...
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WO/1994/028306A1 |
An electromagnetic linear compressor has a linearly reciprocating piston (10) biassed in one direction by a helical coil spring. A rotational bearing (40) supports one end of the spring (20a, 20b). To avoid uneven wear due to forces appl...
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WO/1994/028308A1 |
An electromagnetic reciprocating compressor has a body (1, 2), a piston (10) reciprocating in a cylinder (12) in the body and a piston guide (14) in the form of an insert which is radially located relative to the axis of the cylinder (12...
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WO/1994/028307A1 |
An electromagnetic linear compressor, has a reciprocating piston (10) having a piston head (11) having at its peripherally outermost surface a circumferentially extending strip (15) to prevent leakage to a side outlet from the piston, th...
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WO/1994/027030A1 |
An internal combustion engine having at least one cylinder and reciprocating means (1) comprising pistons (12) which are slidable in said cylinders, said reciprocating means (1) and pistons (12) having a common axis, a pair of rotors (5,...
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WO/1994/025745A1 |
A piston and connecting rod (10) includes a connecting rod (11) supporting a piston (14). The connecting rod (11) has a piston end (13), with the piston (14) being supported on the connecting rod (11) so that it is moved away from the pi...
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WO/1994/023193A1 |
An economical resistant bearing surface reinforcement is to be provided for a reciprocating piston of an internal combustion engine, especially one using an aluminium alloy as the basic material, especially one such designed for an engin...
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WO/1994/011612A1 |
In a process for the pressure-resistant plastic coating of cylinder surfaces in piston-cylinder units, at least the cylindrical surfaces against which a piston ring is to be applied are to be coated after coarse pre-machining with an ade...
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WO/1994/011654A1 |
A piston (22) for an internal combustion engine (10) has a crown (60) and peripheral wall to carry a piston ring (68). A support (80) extends between the wall and a bearing housing (84) to receive the connecting rod (24). A cylindrical s...
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WO/1994/004853A1 |
The assembly is used in a reciprocating hermetic compressor of the type comprising a cylinder block (4), presenting a cylinder (11), within which a piston (20) reciprocates, a smaller eye (31) of a connecting rod (30) being introduced in...
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WO/1994/004810A1 |
In a piston for a four-stroke internal combustion engine having a piston pin (8) and a connecting rod (9), the piston pin (8) is to cross bearing bosses (13) at bearing spots within a piston skirt (4). In addition, at least one ring-shap...
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WO/1993/023722A1 |
An apparatus (102) is adapted to detect the linear extension (position), velocity and acceleration of a hydraulic cylinder (108). The hydraulic cylinder (108) defines a variable length coaxial resonant cavity (112). Under the control of ...
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WO/1993/022585A1 |
A ceramic-metal composite structure which minimizes tensile ceramic loads and accomodates differences in thermal expansion characteristics between a metal member (11) and a ceramic member (12) without reliance on precise feature control ...
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WO/1993/020989A1 |
At least the crown portion of a brake piston having crown (1) and skirt (2) portions is made from a silicon nitride engineering ceramic material which has a thermal conductivity lower than steel. The brake piston is preferably made by a ...
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WO/1993/020369A1 |
The invention concerns an internal-combustion engine reciprocating piston with bosses which are designed to hold the gudgeon pin and which are stepped in the longitudinal direction, thus giving, in the zone extending towards the piston c...
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WO/1993/011353A1 |
The design and construction of past piston assemblies having a wrist pin bolted to a connecting rod have excessive weight and structural components, and requires more complex machining techniques and tooling. The present invention overco...
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