Abstract: A reciprocating pump includes a fluid section that includes fluid-displacing members and a power section that includes crossheads coupled to a respective fluid-displacing member. The power section actuates the fluid section by actuating the crossheads through respective crosshead bores formed through the power section. The power section also includes structural members, pairs of support plates, and pairs of arcuate crosshead sections secured in place between the structural members against a respective pair of support plates. Each pair of the arcuate guide sections comprises a top section and a bottom section that form a portion of a respective crosshead bore. Each pair of the arcuate crosshead guide sections are also secured in place using clamping segments secured to edges of windows of the structural members by bolts extending through interior passages of the clamping segments and having threads that mate with threaded holes extending into the edges of the windows.

Abstract: A bicycle operating device is basically provided with a bracket, an operating member, an actuation cam and a biasing element. The bracket is configured to be coupled to a handlebar. The operating member is pivotally mounted to the bracket about a first axis. The actuation cam is pivotally mounted to the bracket about a second axis. The biasing element includes a coil portion disposed around a third axis that is offset from the first axis. The biasing element biases the operating member relative to the bracket about the first axis toward the actuation cam. The biasing element biases the actuation cam relative to the bracket about the second axis toward the operating member.

Abstract: A vehicle seat cushion frame includes longitudinal frame members, lateral frame members and a panel. A framework of a seat cushion is formed by connecting front and rear sides of the longitudinal frame members, arranged at both right and left sides, with the lateral frame members. The panel is fixed to the both longitudinal frame members so as to cover a space between front end portions of the both longitudinal frame members, including the front-side lateral frame member, from above. The front-side lateral frame member has connecting portions, at which the front-side lateral frame member is connected to the longitudinal frame members. A portion of the front-side lateral frame member, which is between the connecting portions, is thinner than the connecting portions.

Abstract: A base for pumping devices, the base comprising at least one module with which it is possible to mate one pumping device, the module comprising an intake connector and a delivery connector in order to connect respectively the intake and the delivery of the pumping device respectively to a first tubular element and to a second tubular element to which they are essentially perpendicular, the two tubular elements, the first one and the second one, passing through the base from a first lateral face thereof to an opposite second lateral face thereof, from which they face outward in order to be connected, selectively at either face, to a hydraulic system.

Abstract: A device for axially displacing a shaft in a vehicle transmission is provided, in particular a vehicle transmission of a commercial vehicle. In the device, forces are exerted on the shaft of the vehicle transmission in an axial direction via a fork. The device includes a piston, which is movable in the axial direction, in a piston housing. The piston is mounted on an inner guide, wherein an end of the inner guide projects out of the piston housing on one side and, there, is connected to an fixed with respect to a housing of the vehicle transmission.

Abstract: An attachment mechanism includes a compliance member positioned between a body and bayonets. The bayonets collectively define an aperture therebetween. Alignment members prevent rotation of the bayonets relative to the body while allowing the bayonets to move radially outwardly against the compliance member. When a second attachment mechanism is received in the aperture of the first attachment mechanism, relative rotation therebetween may interlock corresponding bayonets thereof. The attachment mechanisms may release from one another in a drop event or other incidence of force applied thereto by allowing a bayonet to radially move outwardly out of contact with a corresponding bayonet of the second attachment mechanism. Related methods are also provided.

Abstract: A rotationally adjustable brake actuator includes a pressure housing with a circumferential rim, a non-pressure housing having a second circumferential rim, and a diaphragm disposed therebetween, where a retaining ring holds the respective housings against each other such that the first rim abuts the second rim, but where the respective housings are able to be rotated with respect to the other. Further, the retaining ring includes a radially-oriented hole and a stop pin that is inserted into the hole and engages the pressure housing to prevent further rotation.

Abstract: There is provided a linear compressor, which can reduce parts production costs and simplify a part installation process by decreasing the number of main springs. The linear compressor comprises: a cylinder providing a space for compressing a refrigerant; a piston linearly reciprocating inside the cylinder to compress the refrigerant; an inner stator; an outer stator; a permanent magnet connected to the piston and linearly reciprocating between the inner stator and the outer stator; a supporter piston connected to the piston, at least part thereof being extended in a radial direction of the piston; a plurality of front main springs positioned on the same axis as the piston, one ends of which being supported by the supporter piston; and one rear main spring positioned on the opposite side of the piston, one end of which being supported by the supporter piston.

Abstract: A universal multi-orientation bracket design for attaching solenoids to a housing of a hydraulically actuated variable valve system. The bracket having at least two sidewalls, an upper cross member, a cupped lower surface and at least one mounting flange. The cupped lower surface is shaped to insert a solenoid main body and gaps included in the side walls for a protruding solenoid connector.

Abstract: A cylinder length sensor mounting and retaining assembly for a hydraulic cylinder includes a casing attachable to a blind end of the cylinder, a sensor retention cap affixable to the casing adjacent the blind end of the cylinder, and a locking pin extendable through the casing and positioned adjacent the sensor retention cap. The assembly facilitates sensor removal without requiring disassembly of the cylinder.

Abstract: A fluid end for a high pressure pump is mounted to the power end in such a manner so as to allow free access to the plunger portion of the fluid end for maintenance or removal of the fluid end. The fluid end sits on a mounting plate which has a key slot. The lower surface of the fluid end also has a key slot and a shear bar is located within the slots. The fluid end further includes a plurality of tensile studs that secure the fluid end to the mounting plate which is secured to a support frame.

Abstract: A device for axially displacing a shaft in a vehicle transmission is provided, in particular a vehicle transmission of a commercial vehicle. In the device, forces are exerted on the shaft of the vehicle transmission in an axial direction via a fork. The device includes a piston, which is movable in the axial direction, in a piston housing. The piston is mounted on an inner guide, wherein an end of the inner guide projects out of the piston housing on one side and, there, is connected to an fixed with respect to a housing of the vehicle transmission.

Abstract: A pair of trunnion support fittings is installed on a cylinder tube, and the trunnion support fittings have main fittings placed along vertical outer surfaces of the cylinder tube and also have fastening fittings connected to arm sections of the main fittings by screws. Installation projections formed on the fastening fittings are engaged with engagement grooves formed in lateral outer surfaces of the cylinder tube. Also, particle layers are formed on the trunnion support fittings and are in contact with the vertical outer surfaces and lateral outer surfaces of the cylinder tube.

Abstract: The invention concerns a method of mounting a cylinder arrangement of a hermetically enclosed refrigerant compressor arrangement in a carrier arrangement (14, 15), in which the cylinder arrangement is inserted in the carrier arrangement (14, 15), aligned in relation to a crank shaft (5) and connected to the carrier arrangement (14, 15). It is endeavored to ensure a good efficiency of the refrigerant compressor arrangement. For this purpose the carrier arrangement is deformed, before inserting the cylinder arrangement, by means of a calibration cylinder (40), until the calibration cylinder (40) has a predetermined alignment, after which the calibration cylinder (40) is removed and replaced by the cylinder arrangement in the carrier arrangement (14, 15).

Abstract: A hydraulic system for moving a carriage guided for movement along a linear path by a support frame, such as a backhoe or an excavator. The system comprises two hydraulic jacks, each having a cylinder body and a piston rod. The cylinder bodies of the two jacks are joined to one another, the end of the piston rod of one jack is connected to the support frame and the end of the piston rod of the other jack is connected to the carriage. In the invention, the two piston rods project from the same side of the joined cylinder bodies and in each end position of the carriage, the piston rod of a respective one of the jacks is extended while that of the other jack is retracted.

Abstract: A structural unit includes a pump housing and a control unit housing which are connected to one another. In order to connect the pump housing to the control unit housing, the pump housing has at least one opening with an undercut and the control unit housing has at least one latching lug which is latched on the undercut.

Abstract: There is provided a linear compressor, which can reduce parts production costs and simplify a part installation process by decreasing the number of main springs. The linear compressor comprises: a cylinder providing a space for compressing a refrigerant; a piston linearly reciprocating inside the cylinder to compress the refrigerant; an inner stator; an outer stator; a permanent magnet connected to the piston and linearly reciprocating between the inner stator and the outer stator; a supporter piston connected to the piston, at least part thereof being extended in a radial direction of the piston; a plurality of front main springs positioned on the same axis as the piston, one ends of which being supported by the supporter piston; and one rear main spring positioned on the opposite side of the piston, one end of which being supported by the supporter piston.

Abstract: A coupling for a pump connects a plunger to a plunger adaptor. The coupling provides a space between an end of the plunger and an end of the adaptor. Upon disconnecting the plunger from the adaptor, the space provides for removal of the plunger from and through a well of the pump.

Abstract: A brake stud housing assembly and method of construction of such assembly for vehicles that exhibits increased shock resistance and vibration reduction capability, allowing for increased durability of a brake housing assembly. The housing assembly includes a vibration dampening layer having an adhesive material that provides a permanent connection between the housing shell and reinforcing plate, which transfers both tensile and compressive loading forces between the housing shell and reinforcing plate in order to reduce vibration and stress.

Abstract: The present invention refers to a filling machine for highly compressed gas, comprising: an electric driver, a reduction gearbox, a driving shaft, an eccentric driving mechanism, an high-compression mechanism, a cylinder manifold and a framework, wherein the eccentric driving mechanism consisting of at least two eccentric driving wheels is mounted on the driving shaft, the high-compression mechanism consists of at least two oscillating type compression gas cylinders connected in series by a plurality of one-way valves and hoses, and a slip ring, a piston rod and a piston are joined into an integral block wherein the slip ring is fitted over the eccentric driving wheel and the other end of the piston rod is connected to a gas cylinder barrel so as to be fitted over a supporting shaft; the supporting shaft is provided in the framework and the framework is provided with a cylinder manifold on the top thereof, which is provided with a pressure switch, a pressure gauge and a safety valve; the outer circumferential

Abstract: A pair of trunnion support fittings is installed on a cylinder tube, and the trunnion support fittings have main fittings placed along vertical outer surfaces of the cylinder tube and also have fastening fittings connected to arm sections of the main fittings by screws. Installation projections formed on the fastening fittings are engaged with engagement grooves formed in lateral outer surfaces of the cylinder tube. Also, particle layers are formed on the trunnion support fittings and are in contact with the vertical outer surfaces and lateral outer surfaces of the cylinder tube.

Abstract: A single acting hydraulic cylinder apparatus includes a mechanism operated by a single acting hydraulic cylinder, the mechanism including a hollow member. A breathing chamber is provided by sealing at least a portion of the hollow member such that outside air is prevented from entering the breathing chamber. A pressurized port of the hydraulic cylinder is adapted for connection to a pressurized hydraulic fluid source, and an un-pressurized breathing port of the hydraulic cylinder is connected to the breathing chamber such that air can flow between the breathing port and the breathing chamber.

Abstract: In the case of an industrial truck having a piston/cylinder arrangement (20), comprising a cylinder (26) and a piston (22), which can be extended out of and withdrawn into said cylinder (26), as a drive and/or as guidance for a first component (12) for the purpose of moving it in relation to a second component (14), in particular as a drive for components (12, 14) of a lifting system (10), the piston (22) is coupled for force transfer purposes to a component (14) associated with it (first or second component), and the cylinder (26) is mounted on a cylinder bearing (34) of the respective other component (12) associated with the cylinder (26) and is coupled to said component (12) for force transfer purposes. According to the invention, the cylinder (26) is in bearing engagement with the cylinder bearing (34) such that it can be moved in relation to the cylinder bearing (34).

Abstract: A linear actuator assembly having a cylinder body and an actuator rod slideably disposed in the cylinder body. The actuator rod has a forward end portion exterior of the cylinder body. An end plug is connected the cylinder body and closes an end portion of the cylinder body. A first retaining member is coupled to the actuator rod and is connectable to a first mounting portion to allow the actuator rod to pivot. A second retaining member removably engages the end plug and the rear end portion of the cylinder body. The second retaining member is connectable to the second mounting portion to allow the cylinder body to pivot about the second retaining member relative to the second mounting portion. The second retaining member retains the end plug within the rear end portion of the cylinder. The end plug can be removed from the cylinder body upon disengagement of the second retaining member from the end plug.

Abstract: An attachment element (12) for the selective pivotal and/or fixed bearing of a power cylinder, comprising a base region (33) having attachment means (45) for its attachment on a support structure (35) and from which two attachment arms (32) extend opposite each other with a distance between them, the attachment arms (32) being provided with bearing means (29) for a pivotal bearing engagement on oppositely placed sides of the outer periphery of the power cylinder (10). The base section (33) is designed with bearing means (41) for any additional terminal interlocking bearing engagement with the power cylinder (10) as may be required. Furthermore a cylinder end cap is proposed matching the attachment element (12).

Abstract: A face wall for a motor vehicle comprises a first wall and a second wall that is disposed at a distance from the first wall. The first wall is provided with a recess for accommodating a brake booster that is fastened exclusively to the first wall. This assembly permits effective soundproofing in the area of the face wall, thereby increasing comfort during driving.

Abstract: Disclosed is a cylinder protective apparatus for preventing strange noise in which an impact damper is fixed to an inner side of a cylinder cover to prevent collision between the cylinder cover and a cylinder or a cylinder guide from occurring, which may be caused by vibration generated when a heavy construction equipment such as an excavator works. Since the cylinder protective apparatus is provided with the impact damper, strange noise due to a gap generated between the cylinder cover and the cylinder or the cylinder guide can be prevented from occurring.

Abstract: An arrangement (10) for the fixing of an axially oriented (A) brake booster (12) on a dashboard (14) of an automobile wherein a rear face (16) of the booster (12) is fixed on a front face (18) of the dashboard (14) through a first bayonet fitting (26) interposed between the rear face (16) of the booster (12) and the front face (18) of the dashboard (14) to prevent the brake booster (12) from rotating.

Abstract: A fluid power cylinder provided with a clamp to allow for clamping of the cylinder to another surface, or for clamping of an object onto the cylinder housing without applying forces directly on an inner bore of the cylinder and without causing any distortion of the bore diameter surface of the cylinder in which a piston is running.

Abstract: The invention relates to a displacement device, particularly for construction machines, having a guide, a carriage, which is displaceably mounted along the guide, and an operating cylinder for displacing the carriage. According to the invention, for increasing the buckling resistance, at least one support element is provided, being displaceably mounted both on the piston rod and on the guide or the carriage and that for preventing lateral buckling of the piston rod, on extending the said piston rod the support element is displaceable up to a predetermined support position on said piston rod.

Abstract: The friction clutch between the prime mover and the change-speed transmission in the power train of a motor vehicle is actuatable by a slave cylinder cooperating with a master cylinder wherein the piston is movable by a clutch pedal or by an electric actuator. The casing of the slave cylinder is made, at least in part, of a plastic material and defines a plenum chamber arranged to receive pressurized fluid from the master cylinder by way of a conduit extending through a bell which contains the clutch and the slave cylinder. The annular piston of the slave cylinder surrounds the input shaft of the transmission. The plastic material of the casing of the slave cylinder can contain one or more additives which enhance its strength and/or influence its frictional engagement with the adjacent surfaces of the piston or of a lip seal which reciprocates with the piston.

Abstract: A lightweight spacer for mounting a vacuum brake booster on a panel provides integral flexible sealing lips to seal the interfaces between the panel, spacer, and booster. Integral retaining tabs are provided for holding the spacer in place on the booster during shipping and installation of the booster. Tubular inserts within the spacer are retained and cushioned against rattling by a thin web of material extending over the end of the insert.

Abstract: The invention relates to a displacement device, particularly for construction machines, having a guide, a carriage, which is displaceably mounted along the guide, and an operating cylinder for displacing the carriage. According to the invention, for increasing the buckling resistance, at least one support element is provided, being displaceably mounted both on the piston rod and on the guide or the carriage and that for preventing lateral buckling of the piston rod, on extending the said piston rod the support element is displaceable up to a predetermined support position on said piston rod.

Abstract: An arrangement includes a clutch operating device that has an elongated cylinder casing with a first end and a second end, and a transmission casing that has an opening. The first end of the cylinder casing extends into the opening of the transmission casing and is radially supported by interior wall of the opening of the transmission casing, and the second end of the cylinder casing is axially supported on the transmission case.

Abstract: A pneumatic collet control system has a pneumatic cylinder subassembly with an internal shuttle subassembly with a central cylinder portion having an internal surface and a plurality of passageway holes on opposite ends of the cylinder communicating with the internal surface. The internal shuttle subassembly having a ram and a piston. A collet arm coupler is threadedly received into the external end of the ram. A valve body subassembly has a pair of valves and a pair of passageways for the valves for allowing and controlling the flow of actuating fluid into the cylinder with the passageways aligning with and coupling to the passageway holes of the cylinder. A central actuating fluid passageway connects with the two valves. A rotatable flow direction arm with a pivotable operator controlled handle controls the flow of actuating fluid into the cylinder.

Abstract: Slave cylinder for a pressure medium-actuated system for actuating the friction clutch of a motor vehicle, the slave cylinder including a cylinder housing, which is concentric to a transmission shaft and in which a ring-shaped piston is held, the piston being connected to a clutch-release bearing for actuation of the friction clutch. The cylinder housing is supported on a wall of the transmission to absorb the actuating forces acting on the clutch-release bearing by a mount which can absorb the wobbling movements of the cylinder housing. Wear on the guide and on the seals between the piston and the cylinder housing is reduced due to the ability of the clutch-release bearing to wobble jointly with the piston and the cylinder housing of the slave cylinder around a mount of spherical design and thus to its ability to follow the movements acting on it.

Abstract: A hand-held vacuum pump has a piston for drawing a vacuum. The pump has a piston rod having a piston end and a distal end. The piston end is attached to the piston. The pump further has a pivot lever having a rod end, a handle end, and a pivot interface disposed therebetween. The rod end is rotatably attached to the distal end. The pump has a pivot support having a support interface. The support interface is cooperatively sized and configured with the pivot interface to translate the rod end of the pivot lever in substantially axial movement of the piston rod.

Abstract: A fluid pressure operated actuating cylinder (11) for mounting in an aperture (13) in a wall (14) of a vehicle, the cylinder comprising a body (12) having first abutment tabs (17)(18) with a first locating surface (17a)(21a) facing in a first direction and second deflectable abutment lugs (17) and has a second locating surface (19a) facing in a second direction generally opposite to the first direction, the first and second locating surfaces (17a)(21a) being arranged to contact respective first and second oppositely directed surfaces (14a)(14b) of the wall 14 after insertion of the cylinder (11) through the aperture 13 with resulting deflection of the second abutment lugs (19) to locate the cylinder in the aperture.

Abstract: A mounting assembly for mounting a pump to a fluid cylinder comprising a tie rod threaded at one end and providing a second end drivingly engageable with a sleeve-like threaded connection for clamping attachment directly into the cylinder block by the direct thread engagement of the connector internally of the cylinder block. The invention eliminates the requirement of machining a fluid cylinder block to provide engageable flanges and form nut pockets, thereby minimizing fabrication time and costs, while increasing strength, stability and alignment accuracy between pump pony rods and plunger assemblies of fluid cylinders generally of the type used for high pressure industrial applications.

Abstract: Disclosed is an attachment structure for a brake-equipped cylinder, comprising a through-hole-equipped bolt formed with a through-hole penetrating therethrough in an axial direction, for integrally joining a main cylinder body and a brake section by being screwed into an attachment hole penetrating through a cylinder tube and a lock body; and an attachment bolt for fixing the main cylinder body and the brake section which are integrally joined to one another, to a wall surface by being inserted through the through-hole.

Abstract: An improved brake actuator, particularly an improved sealed service chamber, having a flexible tubular seal affixed at one end in the central pushrod opening in sealed relation and surrounding the pushrod in sealed relation in the service chamber housing. The improved seal is generally hourglass-shaped including a midportion which closely circumscribes the pushrod in sealed relation and a free end portion which closely circumscribes the pushrod. A relatively inflexible generally diamond-shaped washer surrounds the midportion of the seal which improves sealing, assures concentricity of the tubular seal, prevents the seal from being pushed through the pushrod opening and provides for easy assembly of the seal and washer assembly in the service chamber around the pushrod. The improved end wall of the service chamber housing includes an offset recessed central portion surrounding the mounting bolts and relatively thin preferably V-shaped contact surfaces which generally circumscribe the recessed portion.

Abstract: A rodless cylinder is coupled to an elongated base. The construction for coupling the rodless cylinder to the base includes a hollow duct formed in the bottom wall of the base and extending along the entire length of the base. A projection extending along the entire length of the duct is formed on the upper inner wall of the duct when the base and duct are formed by a drawing or extrusion process. After the base is formed, the longitudinal ends of the projection are cut off by a predetermined length from both longitudinal ends of the base. The portions of the duct from which the projections are cut off act as receiving portions into which mounting nuts are inserted, and the end faces of the remaining projection act as stoppers which abut the inserted mounting nuts to position them. The upper walls of the duct above the receiving portions are cut off to form slits opening to the upper face of the base. The slits act as mounting bolt passages of the rodless cylinder.

Abstract: A high-pressure apparatus with driving device (10) and pressure generating device (30) has a frame configuration (20) through which the driving device and the pressure generating device are connected but detachable (FIG. 1A).

Abstract: The invention relates to a hydraulic piston-cylinder-unit (10) for a slewing drive with at least one piston, which can be slid in a cylinder and exhibits fastening means, by means of which the piston can be connected in such a manner to a coupling rod that the working tool can be swung by means of a movement of the piston. In accordance with the invention the cylinder exhibits fastening means, by means of which the cylinder can be connected to the working tool or to a carrier of the slewing drive.

Abstract: Disclosed are techniques and apparatus for flexibly mounting a mechanism. The embodiments describe a flexible mount that is at once tolerant of misalignment, shock resistant, insensitive to rotational orientation, compact, and failure resistant. A mechanism is rigidly attached to a retainer that interlocks with a stationary housing and confines and compresses annular resilient members. The methods may in particular apply to the mounting of hydraulic and pneumatic cylinders for actuation of a shutter assembly in an optical system. In addition the techniques can apply to the flexible mounting of other mechanisms incorporating movable members having axes of symmetry, including push rods and rotating shafts.

Abstract: A fluid cylinder assembly of the kind provided with a cylinder tube in which a piston coupled by a piston rod operates. The cylinder tube has one end connected with a rod cover. The piston rod passes through an aperture in the rod cover and projects outwardly. The rod cover is associated with means for mounting the fluid cylinder assembly on a frame and a load transducer which converts a change in load axially acting thereon to a change in voltage or current and develops an electric signal. The movement of a lead wire extending outwardly of the load transducer is precluded, and the results of measurement are obtained with a high degree of accuracy.

Abstract: An article comprising a Z-axis positioning stage is disclosed. The Z-axis positioning stage includes at least one collapsible/expandable cell or cavity that is defined within a region bounded by a lower and a movable upper surface and a side wall depending therefrom. Means for collapsing/expanding the cavity is operatively connected to the cavity. During collapse of the cavity, the upper surface drops towards the lower surface. During expansion of the cavity, the upper surface rises away from lower surface. The upper surface thus functions as a movable stage, which is capable of moving an object placed thereon in a vertical direction (i.e., along the z-axis).

Abstract: A damper for use with a hydraulic actuator of the type including a master cylinder and a slave cylinder with a conduit interconnecting the outlet of the master cylinder and the inlet of the slave cylinder. The damper is positioned in the conduit between the master cylinder and the slave cylinder and includes a housing member defining a chamber opening in one face of the housing member and a mounting bracket plate. The mounting bracket plate includes a housing portion corresponding in size and configuration to the one face of the housing member and is positioned against the one face of the housing member to coact with the housing member to seal the chamber. The bracket plate further includes a bracket portion extending outwardly from the housing portion in the form of mounting arms which are utilized to facilitate mounting of the damper to a fixed vehicle structure.

Abstract: A cylinder includes a cylindrical casing, a cap mounted to the cylindrical casing, a retaining member, a mounting member and a piston rod assembly which is positioned in the interior of the cylindrical casing. The cylindrical casing includes a casing wall which extends along a longitudinal axis and defines an interior, an open end, and a closed end. The piston rod assembly includes a rod end and a piston, with the piston including at least one piston seal sealing against an inner surface of the casing wall, which divides the interior of the casing wall into first and second fluid reservoirs. The rod end of the piston rod assembly extends through the cap and moves between extended positions and retracted positions as a function of the pressures in the first and second reservoirs.

Abstract: A mower which includes a cutting mechanism connected to a carrying structure by connections wherein each connection includes a device preventing at least some of the vibrations from being transmitted between the cutting mechanism and the carrying structure. The cutting mechanism includes a gear box at which are arranged cutting members each rotating about a respective axis of rotation which is at least approximately vertical during work and the carrying structure to which the cutting mechanism is connected includes at least one connection which has a flexible element.