Abstract: A cam follower design wherein a cam track is provided proximate one or both ends of a harvester pick-up reel. Cam followers travel along the cam track as the pick-up reel rotates to move crop into the harvester. At least one roller of each cam follower engages and rolls along an interior edge surface of the cam track, and at least one other roller of each cam follower engages and rolls along an exterior edge surface of the cam track. The rollers are preferably engaged with a carrier member which is linked to a corresponding bat tube. Each cam follower preferably also includes at least one over center stop which is configured to maintain the intended radial position of the bat tube.

Abstract: Torsional vibration dampers for rotating shafts are disclosed that have a hub or a hub portion of a pulley-hub monolithic body that has an innermost sleeve defining a bore, an outermost ring concentric with and spaced radially outward from the innermost sleeve, and a plurality of spokes connecting the innermost sleeve to the outermost ring that each have torsional flexibility to act as a first spring to attenuate torsional vibrations. The dampers include an elastomeric member positioned concentrically against the outermost ring or the innermost sleeve of the hub, where the elastomeric member acts as a second spring to attenuate torsional vibrations, and an inertia member positioned concentrically against the elastomeric member, which places the first spring and second spring in series. The dampers may be crankshaft, driveline, or direct drive dampers, and the equivalent spring rate for the first and second springs is governed by the elastomeric member.

Abstract: A reduction gear of the present invention is compact and light and can be used for tire portions of an apparatus for travelling, etc. Each of outer and inner pins is formed by a rolling bearing. The reduction gear includes block-shaped lubricating members which supply a lubricant to the outer rings of the outer pins to thereby lubricate them, and a ring-shaped lubricating member which supplies the lubricant to the outer rings of the inner pins to thereby lubricate them. The lubricant can be supplied to a pair of cycloid gears through the outer pins and the inner pins for lubrication. Since the cycloid gears, the outer pins, and the inner pins are lubricated by the lubricating members, the reduction gear can enhance its durability, reduce the friction between components to thereby lower the frictional resistance, and realize a light and compact structure.

Abstract: A ring gear for a planetary gear set has an annular gear body with a first annular side and a second annular side concentric about a center axis. The first annular side defines a toothed periphery. The gear body may include an annular groove in the first annular side proximate a first axial side of the gear body. An axial flow passage section may extend axially into the gear body from the annular groove without intersecting the first and second annular sides. A radial flow passage section extends radially into the gear body from the second annular side to the axial flow passage section.

Abstract: A lubricating system has been disclosed for gear mechanisms or generators, in particular for gear mechanisms of wind power plants, which lubricating system permits a switchover between dry sump lubrication and wet sump lubrication. This takes place by way of a delivery device which increases the pressure in a lubricant tank selectively or in an emergency, for example a power outage, and presses a lubricant back into an oil sump in the gear mechanism, whereupon a lubricant level is increased there and wet sump lubrication is realized. The delivery device can have a compressor. Said compressor can charge a pressure accumulator via a non-return valve or can increase the pressure in the lubricant tank directly. The delivery device can consist of hydraulic, pneumatic or else electrical components. If it is pneumatic, it can be separated from the hydraulic lubricating system via an elbow.

Abstract: A hydraulic pressure supply system of an automatic transmission for a vehicle is provided. The system divides a hydraulic pressure generated from first and second pump chambers of a hydraulic pump into a high-pressure and low-pressure part. The system includes first and second input lines that guide oil of an oil pan to the first and second pump chambers. First and second discharge lines discharge the hydraulic pressure generated from the first and second pump chambers. A high-pressure switch valve selectively supplies or recycles the hydraulic pressure supplied from the first discharge line to the high-pressure hydraulic path into the high-pressure part. A pressure accumulator is disposed on a high-pressure hydraulic path between the high-pressure switch valve and the high-pressure part and a low-pressure switch valve selectively supplies or recycles the hydraulic pressure supplied from the second discharge line to the low pressure hydraulic path into the low-pressure part.

Abstract: A power transmission apparatus of a vehicle is provided. The power transmission apparatus includes: an input shaft; a brake mechanism; an oil pump; a housing case; a center support; a lubricating oil reservoir; and an oil passage. The brake mechanism includes a stationary race and a rotary race that are adjacently arranged in an axial direction of the input shaft. The center support is disposed between an inner surface of the housing case and the input shaft in the housing case. The center support is configured to support the input shaft relative to the housing case. The lubricating oil reservoir is disposed in a lubrication passage of the lubricating oil inside the housing case. The oil passage communicates the lubricating oil reservoir with the rotary race of the brake mechanism such that the lubricating oil reserved in the lubricating oil reservoir is supplied into the brake mechanism.

Abstract: A shift device, including: a shift body that is operated to change a shift position thereof; a biasing section that causes biasing force to act on the shift body; a retention track that, by placement of the biasing section thereon, causes the shift body to be retained at a shift position; a release track that, by movement of the biasing section thereon from the retention track, causes retention of the shift body at a shift position to be released; and a changer section that, after the biasing section has been moved from the retention track to the release track and moved along the release track, causes the biasing section to be moved from the release track onto the retention track and a shift position of the shift body to be changed by moving the biasing section at a specific occasion.

Abstract: A shift control system and a shift control method configured to execute a skip shift smoothly are provided. The shift control system selects an interim gear stage with reference to a control map. The control map is configured to determine: an intense region where a driver is allowed to sense an increase in the acceleration sufficiently based on an unconscious period, and a stimulation intensity; and a moderate region where acceleration is increased in a mild manner. During execution of the skip shift, the acceleration is increased in a mild manner by shifting the gear stage from an initial stage to the interim gear stage, and then increased significantly by shifting the gear stage from the interim gear stage to a target gear stage.

Abstract: After engagement of a clutch is suppressed from being started and a rotational speed of an input shaft of an automatic transmission is suppressed from being increased due to an increase in rotation resistance of the input shaft of the automatic transmission, which occurs by half-engagement of a clutch, the clutch is disengaged, and the clutch is completely engaged. In this way, the clutch is completely engaged after the rotational speed of the input shaft is suppressed from being increased. Thus, a heat generation amount of the clutch can be reduced, and furthermore, durability of the clutch can be improved by a reduction in the heat generation amount.

Abstract: A control method for an automatic transmission and a two-way clutch includes determining whether a current speed stage is a forward speed stage, comparing a rotation speed of the two-way clutch with a predetermined minimum rotation speed if a current speed stage is a forward speed stage, deciding that the two-way clutch has failed when a rotation speed of the two-way clutch is lower than the predetermined minimum rotation speed, and performing a fail-safe mode if the two-way clutch has failed.

Abstract: There is provided an abnormality determining apparatus for a hydraulic circuit of a vehicle including: a torque converter; a hydraulic clutch; a mechanically-driven hydraulic pump (14); an electrically-driven hydraulic pump (16); and a solenoid valve. The abnormality determining apparatus includes an electronic control unit configured to determine which of the electrically-driven hydraulic pump and the solenoid valve has an abnormality, and configured to determine that the electrically-driven hydraulic pump has an abnormality when a turbine speed of the torque converter becomes equal to or higher than a first determination value within a prescribed period of time from rise-up of an engine speed, and determine that the solenoid valve has an abnormality when the turbine speed becomes equal to or higher than a second determination value higher than the first determination value, after a lapse of the prescribed period of time.

Abstract: A transmission shifter includes a base, a shift lever movable between gear positions, and a pawl, a pawl blocker, a permanent magnet, an electro-magnet, and an electrical circuit for selectively activating the electro-magnet when a predetermined vehicle condition is sensed. The permanent magnet's attraction to an iron based surface of the electro-magnet normally holds the blocker in a pawl-blocking position, keeping the shift lever in park position, until the electrical circuit activates the electro-magnet and the pawl is depressed. When activated, the electro-magnet biases the blocker toward a pawl-unblocked position. A ramp lever keeps the pawl blocker in the park position until the pawl mechanically moves the ramp lever and magnetically-biased blocker together, thus allowing the shift lever to be moved from park position. The park lock system is characterized by an absence of movement in response to an electrical signal to an electro-mechanical device and thus operates noise-free.

Abstract: An electrical parking brake device includes an operation switch and a control circuit. The operation switch includes a switch button, miniature switches, operation switch terminals and inside conductors, the switch button being in one of an On state, an Off state and a neutral state, the miniature switches operating in conjunction with the state of the switch button. The control circuit includes control circuit terminals, a switch verification circuit, management circuitry and brake application command circuitry, the management circuitry managing the electrical parking brake device. The operation switch defines closed circuits that are independent in terms of a pair of the operation switch terminals, for each of the operating states. The closed circuits are closed circuits that, when one or more of the miniature switches fail, avoids influence of the failure, by the miniature switches other than the one or more failing miniature switches.

Abstract: A dust preventing seal may include a body and first and second dust lips. The body may be installed at a locking portion between an arm and a bucket of a construction machine. The body may have an annular shape. The first and second dust lips may be protruded from an outer surface of the body to the outside.

Abstract: Sealing systems and related methods are provided. In this regard, a representative sealing system includes: an elongated seal having a contact surface configured to form an airtight seal with an inner surface of the drum; contact sensor circuitry configured to provide an electrical signal containing information indicative of direct contact between the seal and the inner surface of the drum; and a control actuator configured to direct a flow of lubricant responsive to receiving the information from the contact sensor indicating direct contact such that the flow of lubricant forms a film of lubricant between the contact surface and the inner surface of the drum to prevent direct contact between the seal and the drum.

Abstract: Self-centering metal-to-metal seals for use with valves are described herein. An example apparatus includes a disc-shaped valve plug having a first metallic sealing surface extending circumferentially about a peripheral edge of the valve plug. The first metallic sealing surface has a first curved profile. The example apparatus further includes a valve seat defining an orifice and having a second metallic sealing surface having a second curved profile that is complimentary to the first curved profile so that the first and second metallic sealing surfaces form a metal-to-metal seal when the first and second metallic sealing surfaces are in contact.

Abstract: A system for blocking a plug valve, the system comprising: a plug (1) movable in rotation about an axis (Y-Y); and a blocker part (5); the system being characterized in that: the plug (1) presents an index portion having a first ramp (3) and a second ramp (4) that are arranged around the shaft (2) with oppositely-handed slopes; and the blocker part (5) presents first and second index portions (8, 9) adapted to come selectively into contact with the first and second ramps (3, 4) respectively; the first ramp (3) and the first index portion (8) serving to prevent the plug (1) from turning about the longitudinal axis (Y-Y) in a first direction of rotation, and the second ramp (4) and the second index portion (9) serving to prevent the plug (1) from turning about the longitudinal axis (Y-Y) in a second direction of rotation.

Abstract: A technique enables mechanical control of a directional valve. The technique may utilize a system comprising a directional valve which is mechanically actuatable between a plurality of flow positions. The directional valve is mechanically coupled with an indexer mechanism. The indexer mechanism may be shifted to a plurality of desired indexer positions defined by a cam track. As the indexer mechanism is shifted between indexer positions, the mechanical link between the indexer mechanism and the directional valve mechanically shifts the directional valve to selected flow positions of the plurality of flow positions.

Abstract: Disclosed is an invention related to a packing cylinder for an expansion joint. A packing cylinder for an expansion joint, disclosed in the present invention, comprises: a main packing body having a through hole that forms an injection path for a packing material, having a pressure ball portion that is movably injected into the lower end of the through hole so as to open and close the through hole, and having a supporting member for preventing the pressure ball portion from falling out; and an auxiliary cylinder having on the lower side thereof an injection port to be detachably attached to the main packing body such that the packing material is injected through the through hole of the main packing body, having the central part thereof form an injection path, and having the upper part of the injection path open and close by means of a plug portion.

Abstract: An unclamp delay valve for delaying release of hydraulic pressure in a hydraulic holding device. The unclamp delay valve may have a check valve allowing fluid to flow between an inlet port and an outlet port when held open by a piston translatable within a piston chamber. The check valve blocks fluid from flowing between the outlet port and the inlet port when released due to hydraulic fluid filling the piston chamber and translating the piston away from the check valve. To reopen the check valve, hydraulic pressure is released via the inlet port and slowly drains from a small orifice fluidly coupling the piston chamber and the inlet port, causing the piston to return to again open the check valve. A delay is thus created by the time it takes for the piston chamber to drain, thus opening the check valve to release hydraulic pressure therethrough.

Abstract: A rotatable pressure relief valve assembly is disclosed. The rotatable pressure relief valve assembly may comprise a rotatable plug mounted within a valve body, along with a release mechanism configured to engage with the shaft and hold the plug in a closed position until an opening pressure of the valve assembly is reached. An assembly may include a damper configured to absorb a rotational kinetic energy or a catching mechanism configured to retain the plug in an open position when the plug rotates into the open position. A plug may be wing-shaped or have a mass balanced across a rotatable shaft offset from a diameter of the plug. An assembly may include a buckling pin, torque pin, tensile member or other release mechanism, which may be pre-loaded. A thermal shield also may be provided.

Abstract: The disclosure relates to a pressure release valve (100). The pressure release valve may be suitable for use as an oil recovery valve. In one embodiment, the pressure release valve may comprise a piston (5) and tube (4) configured to slide within a valve body, wherein the piston is configured to remain sealingly engaged with the tube until the pressure release valve fully activates. Upon activation, the piston may disengage from the tube, thereby allowing fluid to escape from the valve through the tube.

Abstract: A touch faucet contains: a body, a temperature control valve, a water control valve, and an actuation member. The body includes an inlet segment, an outlet segment, and a first cavity which has a first hole. The temperature control valve is housed in the first cavity and includes a water inflow portion configured to flow cold water and hot water, a mixing chamber in which the cold water and the hot water are mixed to form a mixing water, and a water outflow portion configured to flow the mix water. The water control valve includes an operation post touched to turn on the water control valve, such that the mixing water flows into the water outflow portion from the mixing chamber, and the actuation member partially exposes outside the body so as to be operated by a user to drive the operation post to move.

Abstract: A touch faucet contains: a body, a connector, and a touch valve assembly. The body includes an inlet segment, an outlet segment, a first connecting part, a second connecting part, and an accommodation chamber. The connector is housed in the accommodation chamber and includes an inflow portion, a first coupling portion, a second coupling portion, and an outflow portion. The touch valve assembly is connected with the second connecting part and includes a positioning cylinder which has at least one through orifice, a province valve, and a driving post, such that the water flow enters into the at least one through orifice from the first coupling portion via the positioning cylinder. The touch valve assembly also includes an actuation device, at least one part of which extends out of the body so as to be operated by user and to drive the driving post to move.

Abstract: A valve seat device including a valve seat and a seat stiffener, the seat stiffener formed from a non-elastomeric material and positioned on a radially outward-facing surface of the valve seat, an outer diameter of the radially outward-facing surface of the valve seat being greater than an inner diameter of the seat stiffener.

Abstract: A rough-in guide for a valve body includes a first side and a second side. The first side includes a valve body retaining jaw and a recessed region. The valve body retaining jaw is configured to selectively receive a first portion of the valve body and to secure the valve body to the rough-in guide. The recessed region is configured to receive a second portion of the valve body. The second side is opposite the first side comprising a valve body retaining clip. The valve body retaining clip is configured to selectively secure the valve body to the rough-in guide.

Abstract: A valve directs fluid flow received from a device to one of a heater and a cooler. The valve includes a spool movably disposed in the housing between a first, second, and third position. An actuator is in fluid communication with the fluid. The actuator includes a smart material that deactivates when the fluid temperature is no greater than a first temperature, partially activated when the fluid temperature is greater than the first temperature, and fully activated when the fluid temperature is at least equal to a second temperature. The spool moves to the first position when deactivated and fluid flows from the cavity, to the heater. The spool moves to the second position when partially activated to prevent fluid from flowing to each of the heater and the cooler. The spool moves to the third position when fully activated and fluid flows from the cavity, to the cooler.

Abstract: The invention discloses a rotation-type flow path switching valve, which includes a driving component and a valve body component connected with a driving shaft. The valve body component includes a valve body, and a spool. The valve body component further includes: a driving disc, and a driven disc which is connected, by means of a first gap linkage mechanism, with the driving disc to transfer an axial movement within a preset swivel stroke of the driving disc. The driving shaft and the spool are connected by means of a second gap linkage mechanism to transfer the axial movement to the spool within a preset swivel stroke of the driving shaft. The valve body component further includes a spring which makes the spool abut against the valve body.

Abstract: A solenoid valve is provided. The solenoid valve is used to control the flow of fluid in various technical fields and products including a transmission installed in a vehicle. The solenoid valve includes a ventilation passage connecting in flow communication the interior and exterior of an operating chamber, configured to operate an armature.

Abstract: In an electromagnetic proportional control valve system, left and right position control apparatuses 20 and 30 are disposed on the both ends of a main spool in a three position proportional control valve 10 and perform stroke control for the main spool. The left and right position control apparatus respectively comprise position feedback springs 25 and 35, pilot control valves 21 and 31, and proportional solenoids 27 and 37. The pilot spool is moved, for operative control, in response to a compression force of a position feedback spring and an electromagnetic force of the proportional solenoid. In addition, the output pressure is applied to both ends of the pilot spool so that control is performed to generate output pressure with a negative characteristic against the electromagnetic force of the proportional solenoids.

Abstract: Exemplary embodiments are directed to a needle valve that generally includes a valve seat, a first stem in threaded engagement with a first stem thread, and a second stem in threaded engagement with a second stem thread. Rotation of the first stem advances the first stem and the second stem towards the valve seat by a distance that is equal to a combined thread pitch of the first stem thread and the second stem thread. Engagement of the first and second stems during rotation of the first stem defines a dual thread actuation mechanism.

Abstract: The present invention relates to a system and devices for guiding flexible corrugated hoses in industrial and robotic applications, where it is common to require tubing and electrical cables to be routed to various locations. A device for guiding such flexible hoses is described, comprising a rigid tube for containing a length of flexible corrugated hose and a spring element. A first end of the spring is fixed to an end of the tube, and a second end of the spring is fixed to an end of the flexible corrugated hose. The flexible corrugated hose may be drawn out of the tube against the force of the spring element, in a longitudinal direction. A fitting for a robotic arm is also described, comprising an arc-shaped wall comprising a portion of a cylinder wall, with first and second plates fixed to top and bottom edges of the arc-shaped wall. The first and second plates of this device may be mounted within a joint of a robotic arm.

Abstract: A mounting assembly including a mount member having a head portion and a stud portion extending downwardly from the head portion, and a clip member affixed to the stud portion of the mount member. The head portion may include slot which interacts with a flexible tie for bundling elongate items. The flexible tie may be integrally formed with the assembly or may be provided as a separate piece. A clip member for use with the assembly clip member includes at least one extending arm portion for engaging a reentrant bore and preventing axial withdrawal of the assembly. The arm portion may have a bifurcated end. A diaphragm spring extending downwardly from the head portion may also be provided.

Abstract: A sealing member for sealing over an aperture in a surface. The member comprises a flange formed from a resilient material for sealing against the surface around the aperture in the surface. A strengthening member supports the flange. A retaining portion formed from the resilient material is provided on an outside surface of the strengthening member to secure the strengthening member to the flange. The retaining portion is integrally formed with the flange via a through hole in the strengthening member.

Abstract: A fuel line comprising a thermoplastic composition is described. The thermoplastic compositions exhibit high strength and flexibility and can be used to form one or more layers of single layer or multi-layer fuel lines. Methods for forming the thermoplastic compositions are also described. Formation methods include dynamic vulcanization of a composition that includes an impact modifier dispersed throughout a polyarylene sulfide. A crosslinking agent is combined with the other components of the composition following dispersal of the impact modifier. The crosslinking agent reacts with the impact modifier to form crosslinks within and among the polymer chains of the impact modifier. The compositions can exhibit excellent physical characteristics at extreme temperatures.

Abstract: There is disclosed a threaded joint for coupling together rods, tubes, pipes etc. The joint consists of helical box and pin thread segments each defined by a pressure flank and a clearance flank spaced apart from each other with alternating roots and crests. The pressure flank is defined by an S-curve extending between the root and the crest, which is defined by a first curvature c1 adjacent to the root and a second curvature c2 adjacent to the crest. c1 and c2 curve in opposing directions with an inflection point “i” between curvatures c1 and c2.

Abstract: A block fitting for connecting components in a vehicular refrigeration system includes male and female blocks defining aligned bores that provide fluid communication between the assembled blocks. A primary seal member is disposed between the blocks in fluid tight relation. A separate secondary seal member spaced from the primary seal member is provided between the blocks. The seal members are pre-assembled onto one of the blocks to form a pre-assembled sub-assembly. In one form, the primary seal member is retained on the block by a polymeric guide ring.

Abstract: A conduit fitting preassembly includes an annular fitting component and at least a first conduit gripping device. The annular fitting component has an interior wall extending axially from a forward end to a rearward end, and a first projection extending radially inward from the interior wall. The first conduit gripping device is received within the annular fitting component and includes a second projection extending radially outward of an outer surface of the first conduit gripping device. The first projection includes an outward tapered rear surface and the second projection includes an inward tapered front surface. The rear surface of the first projection is radially aligned with the front surface of the second projection, such that when the first conduit gripping device is in a forward-most position, the first projection interlocks with the second projection to prevent axial withdrawal of the first conduit gripping device from the annular fitting component.

Abstract: A pipe-in-pipe fast installation structure comprises: an outer pipe; a pliable inner pipe, disposed in the outer pipe; a connector, connected to the outer pipe; and a C ring, formed integrally with an end of the connector. Wherein, the pliable inner pipe penetrates through the outer pipe to extend out from the connector, while an end of the pliable inner pipe is fastened into the C ring. The C ring used for fixing the pliable inner pipe is formed integrally with the connector. As such, the pliable inner pipe can be fastened into the C ring of the connector by making use of the radial compressibility of the pliable inner pipe. The inner pipe and the outer pipe are fixed together through using a special design connector. Therefore, the installation structure is simple in structure, low in production cost, and fast in installation.

Abstract: A clamp connector (1) is designed for subsea operations. It is disposed around two different hubs for engaging and disengaging the hubs. It comprises clamp segments (9), bracket members (6) and ring elements (2). Each clamp segment (9) is so supported and configured in the connector (1), such that it can rotate tangentially and transversally along the respective ring element (2) for engaging and disengaging the hubs.

Abstract: A pipe connection fitting is disclosed in the present application. The pipe connection fitting includes a gasket holder ring, a flap ring and a grip ring operably coupled together. A terminal housing is configured to engage with the gasket holder, flap ring and grip ring to form the pipe connection fitting adjacent an end of a pipe. The flap ring includes a plurality of tabs extending therefrom to provide an abutment for controlling a relative position of the grip ring.

Abstract: A conduit connection system may have a first coupling connected to a first conduit. The first coupling may have a first undercut. The conduit connection system may also have a second coupling connected to a second conduit. The second coupling may have a second undercut. The conduit connection system may have a clamp. The clamp may have a first projection. The first projection may be configured to be received in the first undercut. The clamp may have a second projection. The second projection may be configured to be received in the second undercut. The conduit connection system may also include a connector. The connector may be configured to engage with the clamp to connect the first coupling and the second coupling.

Abstract: A pipe coupling includes a clamp housing including at least one end having two opposing clamp members and one or more tightening elements for tightening the clamp members towards each other in a direction transverse to an axial length of the clamp housing so as to apply a radially-inward clamping force on a pipe being clamped in the clamp housing. An at least partially annular seal is mounted in the at least one end of the clamp housing. The seal has a folded-inwards configuration in which a foldable portion of the seal is folded inwards to create a first inner diameter, and a folded-outwards configuration in which the foldable portion of the seal is unfolded outwards to create a second inner diameter larger than the first inner diameter.

Abstract: A pipe connector is for connecting a fuel line of a fuel supply for a motor vehicle engine of a motor vehicle. The pipe connector has a coupling element that includes a metallic material and is configured to connect to the fuel line, where the fuel line includes a synthetic material. The coupling element includes a pipe projection configured for clamping insertion into the fuel line and a retaining collar for radially externally surrounding the fuel line. An extent of the retaining collar in an axial direction and a distance between the retaining collar and pipe projection is selected so as to limit swelling of the fuel line.

Abstract: The quick release tool includes a U-shaped body which presents a base that has a first side and a second side. The body also has a pair of legs that are spaced laterally from one another and extend away from the first side of the base to respective distal ends. Each of the distal ends presents a pair of ledges that are spaced longitudinally from one another to receive fingers on the locker of the quick connector assembly. The base of the U-shaped body presents a living hinge which is spaced laterally between the legs for pivoting the distal ends of the legs away from one another in response to the application of a force onto the second side of the base, thereby allowing the locker to be moved from the locked position to the unlocked position.

Abstract: A temperature-controlled fluid processing system with accessory attachment mechanism includes an accessory annular ring feature a mounting surface and a tapered surface sloping toward a central axis of the ring feature and away from the mounting surface, and engaging components on the primary device, including concentric annular member and rotation plate. The annular member includes spaced apart through holes housing spring biased pins. The rotation plate surrounds the annular member, and includes one or more ramped inner surface(s). The plate is rotatable between an unattached position wherein the ramped surfaces apply no radial inward force to the spring-biased pins, and an attached position wherein each ramped surface displaces a pin inward through its corresponding through hole such that the conical tip of the spring-biased pin engages the tapered surface of the ring feature, thereby immobilizing the accessory with respect to a head unit of the fluid processing device.

Abstract: A pipe-in-pipe quick connection structure comprises: an outer pipe; an inner pipe, disposed in the outer pipe; a water input piece, sleeved around one end of the outer pipe; a water output piece, sleeved around the other end of the outer pipe; two connectors, each inserted into each end of outer pipe, and connected respectively to the water input piece and the water output piece; two inner pipe fixing rings each being used to fix each connector and the inner pipe; and two outer pipe connection rings, each sleeved around an outer wall of each connector, and connected respectively to the water input piece and the water output piece. The pipe-in-pipe quick connection structure further includes two positioning protrusions, two fix protrusion pins, two positioning and guiding slots, two positioning and fixing holes, two copper sleeves, two tight seal slots, and two tight seal rings.

Abstract: A pipe coupling structure includes an electromagnetic valve and a passage block having an upper surface mounted with the electromagnetic valve and opposite side surfaces formed with an inlet port and an outlet port. The inlet port is connected to a PCV pipe through an inlet pipe joint, and the outlet port is connected to a PCV pipe through an outlet pipe joint. At least one of the inlet pipe joint and the outlet pipe joint is a union joint. The union joint includes a hollow cylindrical union end making contact with a first surface formed with the inlet port or a second surface formed with the outlet port and a hollow cylindrical union nut configured to connect the inlet port or the outlet port to the union end.

Abstract: Provided is a coupling device including a cylindrical housing portion, a valve portion that turns into an open state by contact with the plug device, a bellows portion having therein an expandable and contractible supply passage for supplying incompressible fluid from the plug device to a supply tube, a moving portion being movable to be brought into contact with or distanced from the plug device fitted inside one end side of the housing portion, a first pressure chamber generating a biasing force in a direction to distance the moving portion from the plug device and contract the bellows portion, and a safety valve for discharging the incompressible fluid within the supply passage to the outside when the incompressible fluid within the supply passage reaches or exceeds a predetermined level.