197results about How to "Increase surface pressure" patented technology

Provided is a drilling tool that includes a tubular body defining a longitudinal axial cavity extending therethrough. The tubular body also defines at least one radial guidance channel extending radially from the axial cavity through the tubular body. A cutter element is disposed in the at least one radial guidance channel and includes an internal surface inclined at an angle to a longitudinal axis of the tubular body. The drilling tool also includes a wedge element having an external surface configured to engage the internal surface of the cutter element and to direct the cutter element from a retracted position to an extended position as the wedge element moves from a first position to a second position.

There is provided a tapered coupling structure in which a tapered shaft can be coupled to and decoupled from a hub without the use of an O-ring. In a tapered coupling structure 10 in which a tapered shaft 20 and a hub 30 are coupled to each other, the tapered shaft 20 is provided with a taper part 21 on the side of being coupled to the hub 30, and the hub 30 is provided with a high-rigidity part 32 having a thickness in the radial direction larger than that of other regions and having a high rigidity in the radial direction. An oil groove 24 formed in the outer peripheral surface of the taper part 21 to feed oil to the coupling surfaces of the taper part 21 and the hub 3 is provided in a region corresponding to the high-rigidity part 32 in the axial direction.

A metal gasket in which a thin metal plate for reinforcing the beads of an elastic metal plate is laminated on bead regions only of the elastic metal plate, whereby a stable sealing performance is secured for a long period of time. This metal gasket comprises a thin metal plate provided with beads extending around the circumferences of parallel arranged combustion chamber holes, and an elastic metal plate having combustion chamber holes and extending with a predetermined width and laminated on the portions of the thin metal plate which are around the combustion chamber holes so as to be opposed to valley portions of the beads. The thickness of the thin metal plate is set smaller than that of the elastic metal plate. The thin metal plate is fixed to the elastic metal plate with locking portions formed at the outer circumference of the former engaged with slits formed in the regions of the latter which are on the outer sides of the beads, the thin metal plate being combined with the elastic metal plate at joint portions thereof by spot welding or laser welding.

According to the present invention, there is provided an electrode plate for a water electrolysis device, which is formed from a metal plate having such a thickness as to be capable of being press-formed, and which comprises a flat plate portion, and a peripheral edge portion positioned on the outer side of the flat plate portion and bent so that recesses and protrusions are alternately arrayed along an outer peripheral edge thereof.

A web wrap device is provided for a round baler. The device has a web carrier for pulling the web from a roll of web to a bale chamber. In a leading portion the web carrier has two elements at least one of which being moveable towards the other. The moveable element has a leading edge, which engages the web and is pulled by the tensioned web onto the other element, which increases the clamping effect. In addition a guard is provided to cover a knife during the wrapping mode, but to expose the knife to the web, when it should be cut.

A holding material for a catalytic converter is interposed in a gap between a catalyst carrier and a metal casing receiving the catalyst carrier. The holding material includes a mat including alumina fiber and mullite fiber, wherein the alumina fiber and the mullite fiber are unitarily collected to form the holding material having a predetermined thickness.

Cylinder head gasket comprising a gasket plate which has at least one metal layer with elastic properties and in which a through opening is formed which is surrounded by a bead-like embossment formed in this metal layer, wherein the bead-like embossment forms an approximately linear, self-contained sealing zone with increased sealing surface pressure when the gasket is fitted and the metal layer is provided with a first coating consisting of a plastic material which has elastic properties on its side forming this sealing zone at least in the area of this sealing zone as well as to both sides of the latter; to improve the sealing capacity of the cylinder head gasket around the said through opening, the metal layer is coated on its side provided with the first coating with a sealing bead closed upon itself, likewise surrounding the through opening and consisting of a plastic material, this bead being arranged on the side of the sealing zone facing away from the through opening as well as at a radial distance from the sealing zone in relation to the through opening, wherein the ridge of the sealing bead is at a greater distance from the metal layer supporting it than the upper side of the first coating.

The invention is based on a connection element (16, 44, 50, 66, 74, 80) for connecting a wiper blade (10), which has at least one spring rail (14) as a supporting element, to a wiper arm in an articulated manner, with the connection element (16, 44, 50, 66, 74, 80) having claws (22, 46, 52) which are integrally formed on the side of a base part (18) and, in the mounted state, surround and retain the spring rail (14) by the base part (18) being supported on a part of a wiper rubber (12) which is arranged between the spring rail (14) and the base part (18, 56, 68, 70). The invention proposes that the connection element (16, 44, 50, 66, 74, 80) has means (28, 58, 60, 68, 72, 76, 78, 82, 84) with which the surface pressure between the base part (18, 56, 68, 70) and the wiper rubber (12) is locally increased.

A clutch device has a housing connected to a drive; a takeoff, which is mounted with freedom of rotation in the circumferential direction relative to the housing; and at least one friction clutch, which is mounted in the housing and which can be shifted between an engaged position and a released position. The clutch has clutch components including at least one pressure-exerting device and at least one clutch element which can be actuated by the pressure-exerting device, both the clutch element and the pressure-exerting device being able to shift position to a limited extent in the axial direction. The clutch element has at least one friction surface and a clutch hub in working connection with the takeoff. Beginning at a point of contact between the engaged position and the released position and continuing until the engaged position is reached, the torque of the drive can be transmitted via the housing and the friction clutch to the takeoff, whereas on the other side of the contact point and continuing until the released position, this torque transmission is suspended. A torque-building arrangement, which exerts force on the pressure-exerting device in the direction pointing away from the clutch element of the friction clutch, is assigned to the pressure-exerting device. This torque-building arrangement uses the pressure-exerting device as a first support element on one side and the clutch element as a second support element on the other side. On at least one of these support elements and / or on the torque-building arrangement, at least one flow passage is provided for the fluid which is present in a cooling space inside the housing in which the friction clutch is disposed.

A barrel polishing device for polishing a workpiece having a relatively complicated shape such as a vehicle wheel. The barrel polishing device comprises a polishing medium storage tank for storing polishing media, a base, a workpiece supporting shaft mounted on the base, and a workpiece detachably mounted on a tip part of the workpiece supporting shaft, the polishing media stored in the polishing medium storage tank being flowed by an appropriate means, and the workpiece supporting shaft being disposed so that a front side of the workpiece opposes the flow of the polishing media, the workpiece supporting shaft being rotated about an axis thereof, and a baffle member being placed in the vicinity of a back side of the workpiece.

A syringe cylinder is open to one side for accommodating a plunger and at the other side comprises a syringe connection in the form of a Luer lock connection. The Luer lock connection is formed by a Luer connection and a cylinder section with an inner thread, the cylinder section surrounding the Luer connection. On the outer circumference of the cylinder section there is arranged a ring tapering towards the connection-side end.

A vibration damper (2) that is effective in the direction of rotation of a drive shaft and has a small radial extension. For this purpose, a first shaft part (6) is provided as a sleeve (8) and a second shaft part (7) is provided as an inner part extending axially into the sleeve (8). The two shaft parts (6, 7) engage via rotary drivers in complementary negative profiles (15, 16) of an interposed elastic damper part (10) in the direction of rotation. In addition to the negative profiles, the damper part may be provided with recesses (40) which modify its damping characteristics.

A multicomponent cartridge, particularly a two-component cartridge, contains a coaxial outlet with an outer outlet tube and an inner outlet tube concentric to the outer tube. A cap detachably connected to the coaxial outlet. A seal with at least one seal flange is arranged on the cap for contact on the inner and / or outer outlet tube. A simplified and improved seal is thus enabled, such that the seal includes at least one laterally projecting sealing edge, which extends around the inner and / or outer side of the inner and / or outer outlet tube of the coaxial outlet and / or on the side of the one or more seal flanges facing the outer and / or inner side of the inner and / or outer outlet tube.

The invention concerns a hydraulic machine with a toothed set comprising a toothed ring with an inner toothing, whose circumferential surface extends in parallel with its axis, and a gear wheel (3) with an outer toothing, whose circumferential surface (24) extends in parallel with its axis, at least one tooth flank having an edge as an axial end of a section, which is located between the circumferential surface and a surface directed radially inwards. It is endeavoured to reduce the wear. For this purpose it is ensured that in the radial direction an edge (22, 23) ends so as to be offset inwards in relation to the circumferential surface (24).

There are provided a body, a rotor, a free motion spacer including a group of spacer sections arranged circularly between the body and the rotor and a reverse guide section in which a guide face is provided to be opposed to a roller in the group of spacer sections in the circumferential direction to form a reverse insert section and capable of turning with rotation of the rotor, and a flat cable which is reversed by inserting the reverse section into the reverse insert section in the free motion spacer and is wound around the outer and inner peripheral sides of the group of spacer sections where ribs 45 and 47 project from a wall face at the opposing side of a guide face toward the roller adjacent to the wall face in the circumferential direction of the reverse guide section, and a projection 49 for the stopper is provided in the rib, whereby when the reverse section of the flat cable is erroneously assembled between the wall face and the roller adjacent to the wall face, the reverse section runs on the rib and the projection can restrict the reverse section to fall down from the rib.

A connection device for the torque transmitting connection of a connection component (2) to a hollow shaft (1). The connection component (2) comprises a penetrating recess (8) corresponding in shape to the outside cross section of the hollow shaft (1) for receiving one end of the hollow shaft (1), and the hollow shaft comprises a press-fit plug (9) in the area of the connection to the connection component (2) that forms an interference fit with the inner cross section of the hollow shaft (1). Preferably, the connection device is a press-fit plug (9) additionally designed as a bearing seat (10, 11) for at least one bearing (13, 14) assigned to the hollow shaft. The connection device allows durable and reliable transmission of high torques and it is possible to connect further components to the connection between the hollow shaft and the connection component. The connection device allows a reduction in construction space, mass and costs.

A metal laminate gasket is formed of at least three metal plates, i.e. first to third metal plates assembled together. A connecting portion is formed for partially connecting the first and second metal plates. The third metal plate has an opening located at a position facing the connecting portion for receiving the connecting portion therein. Thus, local pressure formed at the connection portion when the gasket is tightened is eliminated.

The multiple-row angular contact antifriction bearing has an outer bearing ring, an inner bearing ring, and roll bodies, which are arranged at least in two rows next to one another between the bearing rings. The roll bodies are ball discs having two lateral surfaces that are symmetrically flattened from a spherical basic shape whose raceways are arranged inside the bearing rings, abutting against one another so that the respectively adjacent roll bodies of each row have their lateral surface pointing toward one another and arranged directly next to one another on a transversal axis situated at a right angle to the pressure angle axes. These lateral surfaces also provide mutual guide surfaces.

A double-layer lubrication coating composition is made up of an upper-layer coating composition and a lower-layer coating composition. The upper-layer coating composition is made up of 5o to 70 wt % of an epoxy resin or a polyamide-imide resin, 5 to 20 wt % of boron nitride, and 15 to 30 wt % of silicone nitride or alumina. The lower-layer coating composition is made up of 50 to 70 wt % of an epoxy resin or a polyamide-imide resin, 15 to 30 wt % of polytetrafluoroethylene and 5 to 20 wt % of molybdenum disulfide and may include graphite as required.

An ultrasonic transducer for installation in an instrument housing, the ultrasonic transducer having a transducer housing and a housing fixture, the transducer housing being put under pressure by a medium in its installed state on its emitting and / or receiving side. To provide an ultrasonic transducer for installation in an instrument housing, which implements a measure for avoiding crosstalk of ultrasonic signals and avoids the disadvantages known from the prior art—at least partially, the ultrasonic transducer is wherein the transducer housing indirectly forms at least one contact area in its installed state with the housing fixture, the transducer housing and the housing fixture being at least indirectly pressed against one another in a first contact area with existing, but as slight as possible, surface pressure by a pre-loading mechanism.

Disclosed is a device for directional drilling including a drill head mounted on a drill column. A driving device applies an axial driving force to the drill column. A delivery device supplies a wash medium to the drill head through a channel in the drill column. The device provides for increased removal of material and drilling through hard materials by by providing a housing on the drill head having a receptacle for an axially movable piston and a piston drive for producing strikes of the piston acting on the drill head. A connecting link permits an axial movement between the drill head and the drill column. A channel for the wash medium may be sealed at least with respect to the end faces of the piston.

A combustion gas seal for injectors having the function to prevent the leak of a combustion gas when the injector is mounted on a cylinder head of an engine, wherein the seal is made of a resin and the entire surface of the combustion gas side end of the seal is exposed to the pressure of the combustion gas. The seal exhibits improved sealing performance together with improved soundproofing effect.

A gasket is interposed at a joining portion between two members. The gasket includes a gasket base plate having an opening through which fluid flows and a plurality of annular beads formed in a wave shape over a predetermined area extending outwardly from a hole edge of the opening; and at least one shim covering only the annular beads. The shims are laser-welded at a welding portion to cover the beads. Thus, the metal gasket does not have a pressure trace on abutting surfaces of a cylinder head.

The invention relates to a screw component (1) such as screw, bolt, bushing, pipe plug, and pipe connector. The said screw component has screw (3) on the basal body (2) and circumferential seals (10, 11, 100, 200 and 300) such as O-ring and / or screw safety device (6, 10, 11, 16, 60 and 300). When the said screw safety device (6, 10, 11, 16, 60 and 300) provides screwed connection between screw component (1) and another component (8), unscrew torque (ML) of screw component (1) is improved. In order to create such a screw component (1) that can guarantee long-time high reliable screw connection with another component (8) with low process costs, the said basal body (2) and the said circumferential seals (10, 11, 100, 200 and 300) are connected to each other by means of injection moulding a multiple of parts made of different polymers.

The invention is based on a connection element (16, 44, 50, 66, 74, 80) for connecting a wiper blade (10), which has at least one spring rail (14) as a supporting element, to a wiper arm in an articulated manner, with the connection element (16, 44, 50, 66, 74, 80) having claws (22, 46, 52) which are integrally formed on the side of a base part (18) and, in the mounted state, surround and retain the spring rail (14) by the base part (18) being supported on a part of a wiper rubber (12) which is arranged between the spring rail (14) and the base part (18, 56, 68, 70). The invention proposes that the connection element (16, 44, 50, 66, 74, 80) has means (28, 58, 60, 68, 72, 76, 78, 82, 84) with which the surface pressure between the base part (18, 56, 68, 70) and the wiper rubber (12) is locally increased.