Abstract: Plural ejector pins are made to project before a molten resin containing reinforcing fibers is injected into an inside of a cavity through pin point gates in a web forming portion in the inside of the cavity and at positions outside the pin point gates in a radial direction. The ejector pins are retracted from the inside of the cavity after a flow of the molten resin containing reinforcing fibers injected into the inside of the cavity through the pin point gates impinges on the ejector pins and is divided and before a tooth portion forming portion in the inside of the cavity is filled with the molten resin containing reinforcing fibers. Accordingly, weld lines which extend along the radial direction are formed at positions outside the ejector pins in the radial direction, and the molten resin is filled in portions formed after the ejector pins are retracted.

Abstract: A worm wheel of a reduction gear for an electric power steering includes: a boss part including a hollow portion formed along an axial-direction center for coupling of a shaft and having first coupling surfaces, each of which is formed by a first convex surface and a first concave surface continuously repeated along an outer peripheral surface; and a tooth-shaped part having second coupling surfaces, each of which is formed by a second convex surface and a second concave surface continuously repeated along an inner peripheral surface, such that the second coupling surfaces are coupled corresponding to the first coupling surfaces, wherein a plurality of teeth are continuously formed along a periphery thereof with spacing portions interposed therebetween.

Abstract: Uncoupling pulley having a longitudinal axis, and including a wheel rim having a first zone, to receive a belt connecting the wheel rim to a first power transmission element, and second zone situated in the axial extension along the direction defined by the longitudinal axis of the pulley, of the first zone; a hub to be secured to a second power transmission element; one of the power transmission elements being driving, and the other being driven; a ring mounted below the second zone of the wheel rim and around the hub, so the ring can rotate, around the longitudinal axis, relative to the wheel rim and/or the hub; an elastically deformable element mounted between the hub and the ring; and a unidirectional clutch having an end fastened to the ring and the remaining part of which is mounted below the second zone of the wheel rim and above the ring.

Abstract: A continuously variable transmission clutch sheave cover is a one-piece plastic member having a plurality of snap-fit fasteners located between an outer perimeter and a central opening. The snap-fit fasteners releasably engage features positioned on the face of an outer sheave of a driven clutch assembly.

Abstract: A drive pulley for a CVT has a fixed sheave, a fixed sheave shaft fixedly connected to the fixed sheave, a movable sheave, a movable sheave shaft fixedly connected to the movable sheave, a spider and at least one centrifugal actuator. The fixed sheave shaft is disposed at least in part inside the movable sheave shaft. The movable sheave is disposed axially between the spider and the fixed sheave. A biasing member biases the movable sheave axially away from the fixed sheave. A torque transfer assembly is operatively connected to at least one of the fixed sheave and the movable sheave. The torque transfer assembly transfers torque between the fixed sheave and the movable sheave. The biasing member, the at least one centrifugal actuator and the torque transfer assembly are disposed radially outward of the fixed and movable sheave shafts.

Abstract: A transmission includes a fork mechanism in which a plurality of fork rods to which a plurality of shift forks are connected are each attached to a pedestal so as to be moveable in an axial direction. An assembly guide portion is disposed on the pedestal and a guide pin is erected on a clutch housing. As a result, even in cases where an input shaft and a main shaft, on which driving and driven gears and synchro devices are assembled, are assembled on the clutch housing in a state that the driving and driven gears are engaged and, thereafter the fork mechanism is assembled on this clutch housing, the assembly of the fork mechanism on the clutch housing can be easily performed.

Abstract: A bearing system having a housing component, a shaft being supported in the housing component with the aid of a bearing, especially using a roller bearing, wherein the bearing is accommodated in a stepped bore in the housing component, which especially extends through the housing component, a lid part seals the stepped bore, especially with respect to the outside, the lid part is frictionally connected to the housing component, the lid part is accommodated in the stepped bore, a surface section of the outside of the lid part is situated in alignment with a step of the stepped bore, in particular in such a way that the surface section is situated on an axial position of the step.

Abstract: An automatic transmission system includes a housing containing automatic transmission fluid (ATF), a plurality of clutches configured to be engaged to generate gear ratios corresponding to forward speeds of the automatic transmission, wherein one clutch of the plurality of clutches is a friction clutch movable between a disengaged state, an engaged state utilized to create one or more gear ratios of the automatic transmission, and a slippingly engaged state between the disengaged state and the engaged state where the friction clutch is not engaged to create a gear ratio of the automatic transmission, and a controller configured to selectively move the friction clutch to the slippingly engaged state when the friction clutch is not being utilized to generate the one or more gear ratios, such that the friction clutch generates heat from friction to thereby rapidly heat the ATF in the housing and improve operating efficiency of the transmission.

Abstract: A baffle for a gear may comprise a baffle wall and a baffle outlet, the baffle wall having a peripheral portion at least partially defining a channel, the channel extending circumferentially around an axial centerline, the channel configured to receive lubricant through a slot, the slot extending circumferentially around the axial centerline. The baffle wall may be configured to prevent a subset of gear teeth from receiving lubricant. A width of the slot may vary along a circumferential direction. A cross-section area of the channel may vary along the circumferential direction. The cross-section area of the channel may increase along a direction of rotation of the subset of gear teeth.

Abstract: A gas turbine engine includes a planetary gear system including a sun gear, intermediate gears, and a ring gear. A lubricant recovery system for the planetary gear system includes fluid passages that extend through the planetary gear system. A gutter is located radially outward from the planetary gear system for collecting lubricant. At least a portion of the gutter is rigidly attached to the ring gear.

Abstract: A planetary wheel drive uses a single wall output planet carrier includes an internal spline fixed against rotation through an interconnection with an external spline of the stationary spindle. A locking lug of the single wall output planet carrier extends into a notch of a bearing nut. The locking lug prevents the bearing nut from unthreading itself from the stationary spindle. An output planet thrust plate is bolted to an output planet pin.

Abstract: A shift lever apparatus is provided and includes an operating part having fastening pins extracted therefrom and inserted thereinto, based on a signal input. A select lever part is coupled to a shift lever that rotates based on a shift pattern to rotate along with the shift lever. Additionally, the shift lever corresponds to a position of a shift stage based on the shift pattern and includes a plurality of insertion apertures into which the fastening pins are inserted. The fastening pins selectively permit or limit the rotation of the shift lever based on whether the fastening pins are inserted into the plurality of insertion apertures.

Abstract: A transmission for a vehicle is provided and includes a plurality of button portions that each include a button and a light emitting portion and the button is pushed to select a gear shift stage. The light emitting portion includes a light source. A gear shift condition determination unit determines gear shift conditions. Additionally, a controller is configured to determine a current gear shift stage and a selectable gear shift stage that corresponds to the gear shift conditions. The controller further turns on the light source included in the light emitting portion included in the button portions that corresponds to the current shift gear shift stage and the selectable gear shift stage. The light emitting portion that corresponds to the current gear shift stage and the light emitting portion that corresponds to the selectable gear shift stage are configured to emit light having different brightness levels or different colors.

Abstract: A method of controlling a transmission having a gearbox and a pump operable to circulate a fluid through the gearbox, includes sensing an acceleration of the vehicle, and adjusting an operating state of the pump. The operating state of the pump is adjusted to change the operating state of the pump from an initial operating state, to an adjusted operating state, when the acceleration of the vehicle is greater than an acceleration threshold. When the acceleration of the vehicle decreases from being greater than the acceleration threshold to being below the acceleration threshold, the operating state of the pump is returned to the initial operating state. The operating state of the pump may include a speed of the pump, a control signal representing a fluid flow rate for the current speed of the pump, or a fluid flow circuit for supplying the fluid to the pump.

Abstract: Every time a specified time ?T elapses, this shift control device calculates a target drive force Fd (a step S5), calculates a absolute value AF of a difference between an optimum fuel consumption rate Fopt [Fd] for the target drive force Fd and a fuel consumption rate FN [Fd] for the target drive force Fd in each of the gear stages N (a step S8), determines candidate gear stages Nc from the gear stages N (as step S13), and integrates the absolute value AF that is calculated for each of the candidate gear stages Nc in a period from last shift to the present time to determine the candidate gear stage Nc for which an integrated value J is the smallest as a target gear stage Nm (a step S15).

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: A hydraulic control system for an automatic transmission with a torque converter includes two regulator valves controlled by a single variable force solenoid (VFS). A bypass clutch regulator valve increases the pressure to a bypass clutch apply chamber as the VFS pressure increases. A converter charge regulator valve decreases the pressure in a converter charge circuit as the VFS pressure increases. The converter charge circuit is in series with a lubrication circuit. An orifice restricts the flow through these circuits such that they can be supplied from the line pressure circuit rather than a lower priority circuit. In one embodiment, an on/off solenoid opens a flow control valve to bypass the orifice when additional flow is required. In another embodiment, an electric pump supplements the flow in these circuits when required. This later embodiment includes a switch valve such that the electric pump also supports stop/start operation.

Abstract: A transmission combination includes a hydrostatic transmission and a mechanical transmission having a clutch and a control device for calibrating a grinding point of the clutch. A traction drive includes the transmission combination. A method includes calibrating the clutch.

Abstract: A transfer case (30) and a method of assembly in an all-wheel drive vehicle can include a range shifting assembly (60) for shifting between a low-range and high-range drive mode, a normally disengaged clutch assembly (80) for transferring drive torque to a first and second driveline, a clutch actuator (88), and an actuating gear (48). The clutch actuator (88) can be moveable between an expanded position and a contracted position and engageable with the clutch assembly (80) for engaging the clutch assembly (80) when in the expanded position. The actuating gear (48) can be reversibly rotatable through a predetermined angular arc of movement for operating the clutch actuator (88) between the contracted and expanded position for actuating the clutch assembly (80) and for shifting the range shifting assembly (60) between a low-range drive mode and a high-range mode when the clutch assembly (80) is in the disengaged position.

Abstract: A transmission apparatus for a vehicle includes a shift spindle having a clutch actuator, and also includes a shift actuator adapted to operate a shift drum. The apparatus also includes a motor for rotating the shift spindle, and a controller for controlling the motor. In use, the clutch actuator is rotated prior to the shift actuator when the shift spindle is rotated to a shift-down side. The controller rotates the shift spindle to a shift-up side and stores, as a standard duty, a driving duty of the motor at the time when a rotary angle of the shift drum reaches a drum angle threshold. Then, the controller rotates the shift spindle to a shift-down side, and learns a rotary angle of the shift spindle at the time when the standard duty is generated, as a touch point at which the clutch is initially partially engaged.

Abstract: A power-split transmission device for a vehicle, which connects a drive engine to a drive output, having a hydrostatic unit for continuous adjustment of the transmission ratio at a transmission unit, and two range clutches that alternately operate for respectively associated driving ranges with different transmission ratios. A control unit, during regular vehicle deceleration, implements the driving range change from a first range, with higher transmission ratios, to a second range, with lower transmission ratios, by switching from the first to the second range clutch in accordance with a synchronous point dependent deceleration control logic. In the special case of an unexpected increase of the deceleration dynamic at the beginning of an already initiated driving range change from the first to the second driving range, the control unit immediately forces the change by bypassing the synchronous point dependent deceleration control logic when other boundary conditions are fulfilled.

Abstract: In a region in which a rate of change in slip ratio of a transmission belt with respect to a change in input torque exceeds a permissible slip ratio rate of change set in advance, a steep change in the slip ratio is suppressed by limiting the rate of change in the input torque.

Abstract: A transmission includes a gear shift set including a shift gear and a switching mechanism, and another gear shift set including a shift gear and a switching mechanism. At a side face of the lower shift gear, dogs are provided to protrude. The switching mechanism includes a first ring configured to rotate integrally with a shaft, a second ring configured to rotate integrally with the first ring, and an elastic member connecting the first ring and the second ring. The first ring includes first projection portions, and a first abutment portion allowing a shift member to abut thereon. The second ring includes second projection portions, and a second abutment portion allowing the shift member to abut thereon.

Abstract: A vehicle parking lock device includes an automatic transmission to transmit a drive force from a drive source. The automatic transmission includes a hydraulic actuator and a hydraulic circuit. The hydraulic actuator restricts rotation of a parking gear. The hydraulic circuit includes an accumulator and a line pressure controller. Pressure is accumulated in the accumulator with line pressure. Hydraulic pressure accumulated in the accumulator is supplied to the hydraulic actuator so that the hydraulic actuator is in a parking lock activation position when the drive source has stopped. Pressure in the accumulator is accumulated with the line pressure when the drive source has started. The line pressure controller boosts the line pressure to a level higher than or equal to a pressure necessary to fully fill up the accumulator in a case where a predetermined condition is satisfied after the drive source has started.

Abstract: The SBW-CU that constitutes the shift control device, in the case of selection information for selecting a shift range other than the P range being output by the selection position determination unit when the shift range of the automatic transmission is the P range, maintains the P range without switching the shift range of the automatic transmission in the case of the engine being stopped, and the gradient of the road surface being equal to or greater than a predetermined threshold, and switches the shift range of the automatic transmission based on selection information in the case of the engine not being stopped, or in the case of the road surface gradient being less than the aforementioned predetermined threshold.

Abstract: A rotary machine includes a casing that is disposed on the outer circumference side of a rotating shaft and rotates about the axis relative to the rotating shaft, and a hole pattern seal that is fixed to the casing, divides a space between the rotating shaft and the casing into a high pressure side and a low pressure side, and has a first hole line on which a plurality of first hole portions are formed at intervals in a circumferential direction so as to face an outer circumferential surface of the rotating shaft. The hole pattern seal has fin portions that extend toward the rotating shaft at the high-pressure side of the first hole line and in the circumferential direction. The rotating shaft includes a convex portion that protrude from the outer circumferential surface of the rotating shaft toward the first hole portions to extend in the circumferential direction, and face the first hole portions at the low pressure side of the fin portion. The convex portion has a wall surface facing the fin portions.

Abstract: A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ?2 is smaller than a diameter of the valve opening ?1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.

Abstract: An explosion-proof valve (1), particularly a flap valve (1), for interrupting a flow of fluid (F), particularly in a pipeline, and comprising a valve housing (3) that has a passage opening (4) for the passage of the flow of fluid (F), and a valve seat (5) arranged at the passage opening (4), as well as a closing element (6), particularly a flap plate (6), which comprises a sealing surface (9) and lies with the sealing surface (9) against a valve seat (5) when in a closing position. The closing element (6) is moveably mounted on a bearing (17, 17?) in the valve housing (3). The bearing (17, 17?) of the closing element (6) is designed such that the closing element (6) can be moved, in a closing direction, out of the operating position and into the closing position by rotational and linear movement.

Abstract: The present invention relates to a safety valve (1) having a valve housing (2), in the housing interior of which there is provided a shut-off body (3) which is held in an open position of the safety valve (1) by at least one elastic retention element (4) counter to the force of a medium flowing through the valve housing (2), in which open position the medium flows through a valve opening (5) in the shut-off body (3).

Abstract: Proactive methods and articles of manufacture are disclosed for preventing any water leak or flooding of a toilet. These methods and systems can replace or be added to the water system of existing toilets, especially the North American toilets, which use water tanks. In various embodiments the water is turned OFF and prevented to enter the toilet tank before the flush handle is activated and/or before a user is sensed. In some embodiments each flushing of the toilet permits the toilet tank to only fill once. If a leak causes the tank to empty, water is not permitted to fill the leaking tank until the next time the flush handle is activated. In some other embodiments each flushing of the toilet and/or sensing of a user permits the toilet tank to fill a predetermined number of times.

Abstract: A tamper resistant device for an appliance for preventing unauthorized access to and manipulation of the controls for a water heater or the like. The tamper resistant device for an appliance includes a support assembly adapted to secure about a back of a control unit of an appliance and a cover member removably securable to the support assembly and adapted to cover the control unit of the appliance.

Abstract: Drive device and a method for controlling the drive device so as to produce an actuation movement. The drive device includes at least one actuation element (25) consisting of a shape memory alloy, and at least one return actuation element (21) which counteracts the actuation movement of the at least one actuation element (25), the at least one actuation element (25) being received between two connection elements (17) that are separated from, and associated with, one another, and engaging with or being secured to each connection element (17), the connection elements (17) being kept at a distance from one another by the at least one actuation element (25) and the at least one return actuation element (21) positioned between them (17) and, as a result of the opposing directions of action thereof, the connection elements (17) being positioned in a defined initial length for controlling an actuation movement.

Abstract: A valve actuator assembly having an actuator housing coupled to a bonnet and a housing lid. A hydraulic cylinder is positioned within the actuator housing and directly coupled to the bonnet. A piston is positioned within the hydraulic cylinder and coupled to a spring lifter assembly and a spring is positioned within the actuator housing and having a first end and a second end, the first end being coupled to a lower surface of the housing lid, and the second end being coupled to the spring lifter assembly. An operating stem is coupled to the piston and positioned in a channel extending through the bonnet to a valve body assembly.

Abstract: A valve, in particular for water discharge of toilets, has a valve body having at least one feed port and a delivery port; a shutter assembly movable with respect to the valve body between an open position and a closed position; an auxiliary channel, which has the function of controlling the shutter assembly, extends from the feed port to the delivery port through the shutter assembly; a first auxiliary shutter controlled electrically for selectively closing the auxiliary channel; and a second auxiliary shutter for selectively closing the auxiliary channel as a function of the pressure generated by the opening of the first auxiliary shutter.

Abstract: A locking pin assembly having a body including a wall defining an interior space and having at least one aperture therethrough for allowing fluid communication between the interior space and an exterior environment. A barrel defines a bore and has an outer wall with external threads. A pin travels longitudinally within the interior space of the body and the bore of the barrel. A spring actuated assembly maintains an end of the pin in an extended position relative to an end of the barrel when no force is applied to the pin and allows the pin to retract relative to the end of the barrel when a force is applied to the pin.

Abstract: A valve position indicator assembly is disclosed herein. The valve position indicator assembly includes a gearing assembly operable to transmit an input rotation to an output rotation. The gearing assembly includes a first gearing member driven to the output rotation by the input rotation. A rate of the output rotation is a fraction of and less than a rate of the input rotation. The valve position indicator assembly includes: a position indicia engaged with the first gearing member such that the indicia and the first gearing member move together; a scale plate including a plurality of graduated indicia defining a scale of rotation movement of the first gearing member; a mounting bracket comprising a first slot having a length extending between a first end and a second end; and a debris shield having a first end, second end, and inclined frustoconical sides.

Abstract: A valve assembly includes a valve, an actuator for opening and closing the valve, and a positioner for controlling the actuator. At least one limit switch assembly is mounted between the positioner and the actuator. The limit switch assembly connects the actuator and positioner so that movement of the actuator valve is conveyed to the positioner through the limit switch assembly. The limit switch assembly is configured to provide a limit signal when the valve is in one or more limit positions. The limit switch assembly has a calibration mechanism for adjusting the one or more limit positions using an input member accessible from outside of the limit switch housing when the limit switch is installed in the valve assembly.

Abstract: A choke valve comprising: a body having an axial through hole and a radial entry port; a valve seat coaxially housed in the body axial through hole on a first side of the radial entry port; a pressure balanced valving member axially reciprocable within the body axial through hole between a first sealing position bearing against the valve seat and a second position spaced away from the seat; an actuator housing operably connected to the valving member; and a detachably connected reinforcement member detachably connected to the actuator housing and increasing the axial load that the actuator housing can take before failure of the actuator housing.

Abstract: A unitary support assembly for connecting an air transport duct to a support includes a body portion, a duct connecting means integrally formed with the body portion for selectively securing the support assembly to the air transport duct, and a support connecting means integrally formed with the body portion opposite the duct connecting means for selectively securing the support assembly to the support.

Abstract: A pipe support structure comprised of a base having a curved upper surface that create pipe support blocks from a series of adjacent ridges with an intervening valleys. The adjacent ridges of the support blocks support a pipe on its peripheral underside surface. The supported pipe may be positioned to extend either transverse to or parallel to the ridges and adjacent valleys. The valleys are sloped to serve as fluid drainage channels to remove fluid that may collect on the support structure base. The ridges and valleys of the support blocks may be sized and spaced apart as desired to provide support to a pipe of a desired size or a range of sizes.

Abstract: Embodiments of the invention relate to the construction of a sealed connection between an elastomeric or synthetic polymer flexible pipe or hose and a metallic coupling member. The coupling member surrounds an armor layer at a free end of the flexible pipe or hose. A sealing area is defined by a recessed portion of the pipe coupling into which a sealing material is introduced. An inner layer of the flexible pipe or hose may extend into the sealing area where it is bonded to the sealing material. The sealing material and the inner liner layer may each be comprised of a semi-crystalline thermoplastic material. Furthermore, a reinforcement material is provided in the inner layer.

Abstract: A hose includes an inner tube containing an alloy of NBR/PVC mixed with ECO, and the inner tube has a tube wall thickness of from 2 mm to 4 mm. A first reinforcement layer surrounds the inner tube, and includes a first yarn layer spiral wound over the inner tube in a first winding direction, as well as a second yarn layer spiral wound over the first yarn layer in a second winding direction opposite the first winding direction. A friction layer is disposed over the first reinforcement layer. A second reinforcement layer surrounds the friction layer, and includes a third yarn layer spiral wound over the friction layer in a third winding direction, and a fourth yarn layer spiral wound over the third yarn layer in a fourth winding direction opposite the third winding direction. A cover layer is disposed over the second reinforcement layer.

Abstract: A method of making a rubber hose includes the steps of providing an inner rubber layer including a hollow part, and forming a first braided layer on the inner rubber layer by braiding a plurality of first yarn materials including a vinylon fiber made by a dry process such that the braided first yarn materials includes a braid formed in a three-over, three-under pattern. Next, a middle rubber layer is formed on the first braided layer. A second braided layer is then formed on the middle rubber layer by braiding a plurality of second yarn materials including a vinylon fiber made by a wet process such that the braided second yarn materials includes a braid formed in a two-over, two-under pattern. Finally, an outer rubber layer is formed on the second braided layer.

Abstract: A tubular connecting arrangement includes, a first tubular having a first shoulder and first threads, a second tubular having a second shoulder and second threads, a seal sealingly engagable to both the first shoulder and the second shoulder, an insert and a sleeve. The insert is attachable to the second tubular and configured to provide radial support to the second tubular. The sleeve threadably engagable with both the first threads and the second threads in response to being rotated in a same direction relative to both the first tubular and the second tubular such that the first shoulder and the second shoulder are moved toward one another to compress the seal therebetween without rotational movement of the first tubular relative to the second tubular.

Abstract: A fitting, such as an anti-blowback fitting, that includes a friction reducing device that enables easy removal of the fitting from a high pressure connection such as one associated with an HVAC unit. When used in connection with refrigeration, anti-blow back fittings function to keep the refrigerant in the hose to which it is connected in order to minimize or prevent the refrigerant from escaping to the environment. In certain embodiments, a friction reducing device is positioned in the fitting, and decreases the load on the rear housing, which enables easy rotation of the outer or swivel housing of the fitting to remove the same from the high pressure connection. In certain embodiments, the friction reducing device is a thrust bearing.

Abstract: A weldless assembly comprises a plurality of tubes, wherein the plurality of tubes includes an inner tube, an intermediate tube, and an outer tube; a first closure end configured to cap a first side of the plurality of tubes; and a second closure end configured to cap a second side of the plurality of tubes.

Abstract: Wearable rubber parts for fluid handling systems include a four layer structure, wherein the inner most layer of the four layer structure is a polyurethane layer. The polyurethane can be millable polyurethane. The polyurethane used in the inner most layer can be produced by reacting diisolcyanate with a polyester and/or polyether polyols and a chain extender. The wearable rubber part can be an expansion joint, a pinch valve, or a hose.

Abstract: An open hose clamp having a clamping device, i.e., a so-called Oetiker ear. The clamped state is locked by serrated sections which engage with each other outside of the ear section on the side of the ear facing away from the outer clamp strip end. In the locked clamped state, the load on the ear is reduced so the hose clamp does not lose its clamping function even if the outward-protruding ear is damaged. The width of the clamping strip in the area of the ear is reduced compared to the remaining full clamping strip width.

Abstract: A piping connection structure which assigns a function to restrict a pipe body from coming off to a member other than a resin tube, improves in sealing performance and can suppress the amount of fuel permeation. A resin tube comprises a tube body portion; a first diameter-expanding portion formed to increase in diameter from an axial end of the tube body portion and axially positioning seal members by holding the seal members in an axial gap with a retainer; and a second diameter-expanding portion formed to further increase in diameter from the first diameter-expanding portion, and to contact an outer circumferential side of the seal members and be connected to the retainer while in contact with the retainer. Thickness of the first diameter-expanding portion is equal to or greater than thickness of the tube body portion.

Abstract: A fitting for attaching to double wall tubes includes a body, a fitting center port, an outer seal, a tube connection, a pad connection, an inner seal, a groove, and a diagnostic port. The body has a first surface on a first side of the body and a second surface on a second side of the body. The fitting center port extends through the body for passing a primary fluid flow. The tube connection is on the first side of the fitting, and includes an inner connection and an outer connection. The groove is in the second surface surrounding the inner seal and the groove is configured to receive an outer seal. The diagnostic port is in the second surface for transferring a collected fluid through the body to the outer connection.