Abstract: The invention relates to a shut-off flap (26) for a motor vehicle shut-off device, notably for a device for shutting off an air inlet in the front face of a motor vehicle, comprising a flap body (28), the flap body (28) being at least partially made of a fibre reinforced composite material, notably one that uses continuous reinforcing fibres (42, 44). The invention also relates to a motor vehicle shut-off device comprising such a flap and to methods of manufacturing this flap and this shut-off device for a motor vehicle.

Abstract: A body covering a disk in a butterfly valve comprises: an upper body; and a lower body, wherein an inserting space is formed by combining the upper body with the lower body, the disk is inserted into the inserting space, and at least one of the upper body and the lower body includes a framework formed of a metal and a plastic layer formed on the framework.

Abstract: A ventilation system including a housing into which a volume of air is directed in an initial air flow direction. The ventilation system includes an air flow guide extending between a base portion and a tip thereof. The air flow guide is movable between a first position, in which the tip is located at a predetermined first minimum distance from an inlet portion wall, and a second position, in which the tip is located at a predetermined second minimum distance from the inlet portion wall, to partially guide the air flowing into the housing into a first channel and a second channel respectively. The ventilation system includes a number of cross-car vanes that are movable together to direct air flowing through the housing in a selected direction relative to the initial air flow direction.

Abstract: A throttle valve device includes a shaft in a cylindrical passage, a slit passing through the shaft from one lateral side to another lateral side of the shaft, a pair of bearings on both sides of the cylindrical passage and rotatably supporting one end part and another end part of the shaft, and a circular-plate valve inserted into the slit of the shaft and rotatable to open and close the cylindrical passage. A length of the slit on the one lateral side of the shaft is, in an axial direction of the shaft, longer than a length of the slit on the other lateral side of the shaft. A round end hole is formed at an end of the slit in the one end part of the shaft on the one lateral side of the shaft.

Abstract: A coupling arrangement is disclosed for the rotational coupling of a drive element of a pivoting drive of an exhaust-gas flap for the exhaust-gas flow of a combustion engine to a pivot shaft rotatable about a pivot axis. A first coupling element has a coupling region coupled to a pivot shaft for rotation about the pivot axis. A preload element generates a force acting on the first coupling element and the second coupling element in a peripheral direction with respect to one another and generates a force acting in an axial direction between the coupling elements. One of the coupling elements includes two radially outwardly extending rotational coupling projections and the other coupling element includes a rotational coupling cutout receiving the projection. The one coupling element is held axially on the other coupling element by the preload element to prevent the projections from moving out of the cutouts.

Abstract: A coupling arrangement is disclosed for rotationally coupling a drive element of a pivoting drive of an exhaust-gas flap for the exhaust-gas flow to a pivot shaft that is rotatable about a pivot axis. A first coupling element has a coupling region coupled to the pivot shaft for conjoint rotation about the pivot axis and a second coupling element has a coupling region coupled to the drive element for conjoint rotation about the pivot axis. A preload element acts on the first coupling element and the second coupling element substantially in a peripheral direction with respect to one another. One of the coupling elements has two rotational coupling projections which extend radially outward with respect to the coupling region of the coupling element. The other coupling element includes, so as to be assigned to each rotational coupling projection, a rotational coupling cutout which receives the corresponding rotational coupling projection.

Abstract: An exhaust valve device for a vehicle includes: a valve element 7 axially supported by a rotating shaft 5 in a bore 4 of a valve body 3 produced through casting; sealing projections 21 and 22 integrally formed on an inner circumferential surface of the bore 4 to follow one side portion 7a and the other side portion 7b of an outer circumferential edge of the valve element 7 at a fully closed position; sealing surfaces 21a and 22a of the sealing projections 21 and 22, the right side portion 7a and the left side portion 7b of the valve element 7 at the fully closed position abutting respectively on the sealing surfaces; R-shaped corners 21b and 22b formed between the inner circumferential surface of the bore 4 and the sealing surfaces 21a and 22a; and diameter enlarged portions 25 formed in the inner circumferential surface of the bore 4 to enlarge the bore 4 that are adjacent respectively to the sealing surfaces 21a and 22a of the sealing projections 21 and 22 and correspond to lengths of the sealing surfaces 2

Abstract: Exemplary embodiments are directed to butterfly valves, generally including a body assembly and handle assembly. The body assembly generally includes a body, a disc rotationally disposed inside an opening of the body, a cog, and a stem passing through the disc and the body. The handle assembly generally includes a handle body and a force ring. The stem can be rotationally interlocked relative to the disc and the handle assembly. The cog and the force ring can engage to rotationally secure the disc relative to the body. The handle assembly can include a lever and a grip, the force ring, the lever and the grip being pivotally secured relative to each other. The body can include a male radial protrusion and the body assembly can include a liner with a female radial groove. Methods of assembling and positioning a butterfly valve are also provided.

Abstract: A valve or a valve coupling has a closing member rotatably mounted within the bore of a housing. The valve closing member is mounted on tapered shafts. The shafts may be stepwise tapered, or a portion of the shafts may be tapered. The ends of the shafts having the larger diameters engage lugs on the valve closing member and the ends having the smaller diameters extend from the housing.

Abstract: A compact unitized mechanical linkage, which can be handled as a single piece within a valve top works, transmits force and motion of a piezoelectric actuator stack to a moveable element in a control valve. The linkage has few parts and all may be made at low cost.

Abstract: An intake device includes: a rotary shaft; and a resin-made intake valve including a rotary shaft press-fit guide hole provided at an end portion in a rotary axis direction to guide the rotary shaft when the rotary shaft is press-fitted, a rotary shaft press-fit hole provided on a more inner side than the rotary shaft press-fit guide hole in the rotary axis direction, the rotary shaft inserted through the rotary shaft press-fit guide hole being press-fitted into the rotary shaft press-fit hole, and a window portion exposing an outer surface of the rotary shaft, the resin intake valve being rotated together with rotation of the rotary shaft in the intake port to change intake air, in which the rotary shaft press-fit guide hole has a tapered shape portion which gradually decreases in cross-sectional area toward the rotary shaft press-fit hole when viewed from the rotary axis direction.

Abstract: A valve for an exhaust gas line of an internal combustion engine in which a closure body is arranged in a duct and is positioned in a recess of a shaft, the closure body being pivotable about a rotation axis of the shaft. The closure body has two sides and a circumferential surface arranged between the two sides. The circumferential surface has sections with different external dimensions. A first external dimension of the circumferential surface of the closure body in a first section is smaller than the smallest internal dimension between end regions of the recess of the shaft in which the closure body sits. A second external dimension of the circumferential surface in a second section is greater than the smallest internal dimension of the recess of the shaft. The circumferential surface contacts the shaft in each of the two end regions of the recess.

Abstract: A louvre blade retention system for use in a louvre windows system, the retention system including a louvre end clip mounted relative to a louvre channel, the louvre end clip having at least one longitudinal recess therein to receive an end portion of a louvre blade and at least one transverse opening, a louvre blade having at least one opening therethrough in the end portion and a retaining member adapted to be received through the aligned at least one transverse opening in the louvre end clip and the at least one opening through the louvre blade in order to fix the louvre blade to the end clip.

Abstract: The invention relates to a fluid valve comprising a movable flap (1) provided with a first wing (3) and a second wing (4), said valve also including a gasket (2) having an opening (5) for the passage of the fluid. At least one (3) of the aforementioned wings, known as the sealing wing, can seal the opening (5) in the gasket (2) at least partially when the flap (1) is in the closed position. According to the invention, the sealing wing (3) and the other wing (4) are positioned on each side of the gasket (2) when the flap is in the closed position and the flap comprises an intermediate area (6) connecting the first (3) and second (4) wings and extending through the opening in the gasket (6).

Abstract: The drilling device for forming an osseous channel (2) with a curved profile (2b) via a straight cannula (6) previously fixed in the body of a vertebra (3) with a cortical plateau (4) of a spinal segment (Sr) of a vertebral column (Cv) includes a guide pin (8) which is provided from a guide pin kit and has at one of its ends a curved profile (8a) of which the radius of curvature R is less than 20 millimeters, and a sharpened tip (8b) arranged in a direction defined by an angle Y which is less than 90 degrees to the longitudinal axis of said pin, the profile of said guide pin (8) making it possible to define, after insertion thereof into the body of the vertebra (3), two contact points a and b ensuring the guidance of the free end of an articulated drill bit (10) so as to position said free end in a direction substantially perpendicular to that of the cortical plateau (4) of the vertebra (3) to be drilled.

Abstract: A valve assembly has a valve body, a lower bushing, a valve seat, a lower stem, a disc, and an upper stem. The valve body defines a bi-directional flow path therethrough; wherein the valve body has an inner surface, two flange faces, and further defines an upper orifice and a hemispherical lower orifice along an axis perpendicular to the flow path. The lower bushing is housed in the lower orifice, and the lower bushing is configured to tilt within the lower orifice away from the axis. The lower bushing defines a bushing cavity. The valve seat has an outer surface configured to encapsulate the inner surface and the two flange faces of the valve body. The lower stem is housed in the bushing cavity, and the lower stem is configured for tilting away from and towards the axis perpendicular to the flow path. The disc has a seating surface on at outer circumference, defines a stem receptacle to house the lower stem, and the stem receptacle extends less than a diameter of the disc.

Abstract: A butterfly valve (100) is provided. The butterfly valve (100) includes a valve body (103) including a valve bore (109) passing through the valve body (103), with the valve bore (109) including an upstream valve bore portion (109U) and a downstream valve bore portion (109D), a shaft bore (112), a valve shaft (121) located in the shaft bore (112) and extending substantially across the valve bore (109), and a valve flap (107) affixed to the valve shaft (121) and configured to be rotated by the valve shaft (121). The valve flap (107) is configured to rotate between a closed orientation blocking the valve bore (109) and an open orientation. The valve flap (107) is affixed on an upstream valve bore portion side of the valve shaft (121), wherein incoming fluid presses the valve flap (107) against the valve shaft (121).

Abstract: A flap bearing system for a flap shaft in a motor vehicle includes a first radial bearing within which is arranged a flap shaft comprising a flap shaft end. A ratable flap body is arranged on the flap shaft. A flow cross-section of a channel housing is controllable by rotating the flap shaft with the flap body. A first bearing housing surrounds the first radial bearing. A bearing housing cover comprises an opening through which the flap shaft end protrudes. The bearing housing cover closes the first bearing housing. A sleeve radially surrounds a section of the first bearing housing. A circumferential groove is formed at an outer circumference at the section of the first bearing housing surrounded by the sleeve. The flap shaft end protruding from the first bearing housing is arranged geodetically so as to be at a same height or above an opposite flap shaft end.

Abstract: A valve assembly has a valve body, a lower bushing, a valve seat, a lower stem, a disc, and an upper stem. The valve body defines a bi-directional flow path therethrough; wherein the valve body has an inner surface, two flange faces, and further defines an upper orifice and a hemispherical lower orifice along an axis perpendicular to the flow path. The lower bushing is housed in the lower orifice, and the lower bushing is configured to tilt within the lower orifice away from the axis. The lower bushing defines a bushing cavity. The valve seat has an outer surface configured to encapsulate the inner surface and the two flange faces of the valve body. The lower stem is housed in the bushing cavity, and the lower stem is configured for tilting away from and towards the axis perpendicular to the flow path. The disc has a seating surface on at outer circumference, defines a stem receptacle to house the lower stem, and the stem receptacle extends less than a diameter of the disc.

Abstract: Exemplary embodiments are directed to butterfly valves, generally including a body assembly and handle assembly. The body assembly generally includes a body, a disc rotationally disposed inside an opening of the body, a cog, and a stem passing through the disc and the body. The handle assembly generally includes a handle body and a force ring. The stem can be rotationally interlocked relative to the disc and the handle assembly. The cog and the force ring can engage to rotationally secure the disc relative to the body. The handle assembly can include a lever and a grip, the force ring, the lever and the grip being pivotally secured relative to each other. The body can include a male radial protrusion and the body assembly can include a liner with a female radial groove. Methods of assembling and positioning a butterfly valve are also provided.

Abstract: A throttle device, includes a housing, a gas conduit, a throttle shaft, a throttle body movable by means of the throttle shaft. According to the invention, a bearing is provided for supporting the throttle shaft on the housing, in which for sealing off an interstice in fluid-tight fashion between the throttle shaft and the housing, and in particular outside the bearing, a viscous medium is disposed in the interstice.

Abstract: A valve unit, having a housing, a flap, which is rotatably arranged in the housing and connected to a flap shaft supported in the housing, an electric motor for driving the flap shaft, and a transmission arranged between the electric motor and the flap shaft. A coupling, which consists of a flap-side component, an intermediate piece, and a transmission-side component is arranged between the flap shaft and a shaft of the transmission. At least one of the three coupling parts has at least two first holes of a same radial orientation. At least two second holes are arranged perpendicular to the first holes. Molded elements of an adjacent component of the coupling engage in the holes and the holes have a greater extension with respect to the radial orientation of the holes than the molded elements that engage in the holes.

Abstract: The invention relates to re-circulated exhaust gas valve for a motor vehicle engine, including a flap (2) and a shaft (7) for driving the flap (2) about an axis of rotation, said flap (2) and said shaft (7) being inserted one inside the other in the area of one or more connecting barrels (5) forming a thermal conduction area between the flap (2) and the shaft (7), the valve being characterized in that said valve includes a cavity (28) configured such as to localize the thermal conduction area axially and set back from a first edge of the flap (2) turned toward an axial end of the shaft (7), which is connected to members for driving the valve.

Abstract: A valve device has a housing, and a flow channel running in the housing, in which a valve flap is fastened on a shaft arranged perpendicularly to the flow direction. The shaft is rotatably mounted in housing. The bearing formed as a loose bearing is surrounded by a spring retainer, the base of which lies on a bearing bush of the loose bearing and has a jacket surface with a radial wavy shape.

Abstract: A butterfly valve for use with a tank trailer includes housing, a lateral extension, a shaft provided through the extension, the back end of the shaft having a seat for accommodating a handle thereon, and further extensions may connect with the first mentioned extension. The handle turns the butterfly valve between opened and closed positions.

Abstract: An aeration butterfly valve including a butterfly disc valve, located within one or more configured valve housings, furnishes a disc valve that rotates about its own axis separate from the axis of rotation of the pivot stems that hold the disc valve in position for manipulation between opening and closure, with respect to the housing in which the disc valve mounts for operation. A ring seal provided within the housing is formed when the housing parts are engaged together, in the assembly of the housing, forcing a portion of the ring seal interiorly, within the housing passage and flow path, and in alignment with the circumferential periphery of the disc valve, to provide for complete sealing closure when the disc valve is pivoted into closure, thereby eliminating the need for the pivot stem and the disc connection to be sealed in their assembly within the aeration butterfly valve.

Abstract: A butterfly valve comprises a housing including a bore, a rotatable shaft passing through the bore, a disc mounted to the shaft for controlling the flow of a fluid through the bore, a thrust load reacting section and a wear interface. The thrust load reacting section includes a thrust plug assembled in a thrust reacting end of the shaft and a thrust plate secured to the housing. The thrust plate has a well for axially retaining the thrust plug and the thrust reacting end of the shaft. The wear interface includes a first contact region on the thrust plug with a first contact surface and a second contact region at the base of the well with a second contact surface. A portion of the first contact surface is spherical and in contact with a portion of the second contact surface.

Abstract: Methods and apparatus to couple valve shafts and closure members are described. An example coupling apparatus includes an expansion pin to be disposed in a bore defined by a first aperture of a valve shaft and a second aperture of a closure member. The first and second apertures are coaxially aligned when the valve shaft is coupled to the closure member. A first tapered pin is disposed in a first opening of the expansion pin adjacent a first end of the expansion pin and a second tapered pin is disposed in a second opening of the expansion pin adjacent a second end of the expansion pin. The first tapered pin causes the expansion pin to expand at a first location when the first tapered pin is disposed in the first opening and the second tapered pin causes the expansion pin to expand at a second location different than the first location when the second tapered is disposed in the second opening.

Abstract: An example valve shaft apparatus for use with a rotary valve disclosed herein includes a shaft having a first portion to be positioned in an opening of a valve body and a second portion to be positioned in a cavity of a closure member. A first seal is coupled to the first portion of the shaft to prevent fluid leakage into the opening of the valve body, where the first seal defines a first leakage detection area adjacent the first seal. A second seal is coupled to the second portion to prevent fluid leakage into the cavity of the closure member, where the first seal is spaced from the second seal and the second seal is to define a second leakage detection area adjacent the second seal. A passageway is formed in the shaft and fluidly coupled to the first and second leakage detection areas to provide an indication of fluid leakage past the first seal in the opening or to detect fluid leakage past the second seal in the cavity.

Abstract: A valve and method for use is provided. The valve has a valve body having an outer perimeter and an inner perimeter defining a flow path therethrough. The valve has a closure member within the inner perimeter configured to selectively close and open the flow path. The valve has a valve seat located at least partially within the inner perimeter and configured to engage a portion of the closure member when the closure member is in a closed position. The valve has a stem configured to support the closure member within the flow path wherein a portion of the stem has an actuator offset. The valve has a bearing pedestal configured to support the stem. The valve has a closure member-stem connector configured to rotationally couple the closure member to the stem while allowing the closure member to move relative to the stem along a longitudinal axis of the stem.

Abstract: A butterfly valve assembly includes a unitary flow body and a unitary valve element. The unitary valve element is rotationally mounted within the flow body and includes a rotationally mounted shaft and a butterfly plate that is formed integral to the shaft. The butterfly valve assembly can withstand the maximum drive torque supplied from an associated actuator, while at the same time meeting a desired level of flow performance, and allows the unitary valve element to be installed up through the pilot bore.

Abstract: An impact absorber is arranged between a first rotation member and a second rotation member that are coaxially arranged to rotate in a circumference direction around a rotation axis. The first rotation member has a recess continuously extending in a direction inclined to the rotation axis from a first end to a second end, and a lock part extending in the circumference direction from the second end of the recess. The second rotation member has a projection configured to be engaged with the recess continuously from the first end of the recess to the second end of the recess. The projection of the second rotation member is locked with the lock part of the first rotation member when the projection moves to the lock part from the second end of the recess.

Abstract: A throttle valve for controlling a fluid flow includes a throttle housing (4), a gas passage (18) in the throttle housing (4), a throttle shaft (8) which is pivotably supported in the throttle housing (4), and a throttle (6) which is connected to the throttle shaft (8). The throttle shaft (8) extends through a jacket (12) which is provided on the throttle (6) and at least partially encompasses the throttle shaft (8). After the throttle (6) is installed on the throttle shaft (8), a hardening filler material (10) creates a form-fit connection between the throttle (6) and the throttle shaft (8).

Abstract: A bushing is disclosed for pivotally mounting a damper in ductwork of the type generally used with heating, ventilation, and air conditioning (HVAC) systems. The bushing is a circular shaped member of silicone rubber material, which is particularly configured and dimensioned to provide an airtight fit with the ductwork to prevent loss of conditioned air at the pivot location, without compromising the rotational capability of the damper to alter the direction of the conditioned air. The bushing is dimensioned to be inserted into the ductwork and includes a peripheral groove which receives the ductwork in a manner which compresses the inner surface of the groove to provide the airtight seal. The bushing also includes a longitudinally tapered square central opening, which opening is dimensioned to engageably receive the damper pivot rod snugly to provide additional sealing at the interface between the bushing and the pivot rod.

Abstract: The valve 1 comprises: a body 2 having a through-channel 3 for the fluid, a rotary control shaft 4 having a seal for the channel, mounted in a passage 10 of the body, bearings 6, 7 provided in said passage between the body and the rotary control shaft, and axial locking of the shaft in said body. According to the invention, the axial locking of the shaft is achieved by at least one cylindrical ring 15 mounted in a rotationally constrained manner on said shaft 4 and having an external surface 20 orientated towards one of the bearings 6 and contacting a transverse face thereof.

Abstract: Disclosed is a butterfly valve capable of controlling fluid flow according to rotation of a disc. The butterfly valve includes a valve body having an inner space of which two end portions are open; first and second discs disposed to face each other at the inner space, installed to be rotatable between an open state and a closed state of the inner space, and configured to selectively open and close the inner space; first and second sealing members mounted to the valve body, and configured to contact the first and second discs, respectively in the closed state; and a disc controlling apparatus configured to move the first and second discs to a direction contacting to or spacing from the first and second sealing members in the closed state. Under this configuration, durability and a sealing function may be enhanced.

Abstract: A unitary damper shaft extender for HVAC air ducts, the extender comprising a unitary apparatus comprised of two interlocked, but relatively movable members. One of the members being capable of interlocking with a damper shaft, and the second member being slidably movable to cover, and thereby lock the first member to the damper shaft, so as to extend its length beyond the usual insulation used for air ducts.

Abstract: A valve flap device having at least one valve housing having a shaft comprising a bearing surface and a valve axis, the shaft being rotationally supported about the valve axis by means of the bearing surface in the valve housing. A bearing element having a sliding bearing surface, wherein the bearing surface of the shaft contacts the sliding bearing surface. A bearing housing provided on the valve housing, in which the bearing element is supported at least in the radial direction to the valve axis, wherein the bearing element has an outer surface contacting the bearing housing. The support of the shaft is intended to be sufficiently tightly sealed, even for gaseous media, while simultaneously ensuring precise and statically determinate support.

Abstract: A housing having at least one valve seat for at least one flap, which is supported so it can rotate on a drive shaft. The drive shaft is guided on at least one side through the housing, a sleeve, through which the drive shaft is rotatably guided, being disposed fixed in place on the inside of the housing in this area. The sleeve has a first area, which faces the flap and encloses the drive shaft with a first slight play. Furthermore, the sleeve has a second area, which faces away from said flap and has a diameter expansion in comparison to the first area and which, on the front side thereof facing away from the flap encloses the drive shaft with a second slight play. Furthermore, the valve is a gas recirculation valve of a motor vehicle.

Abstract: Valve stem holes (17) and pin holes (18) are formed on a valve element (3). A groove (23) is formed on the outer periphery of an insertion part (22) of a valve stem (4). In a state in which the insertion part (22) is inserted into the valve stem hole (17), the groove (23) and the pin hole (18) form an engaged part (27), and a connecting pin (16) is inserted into the pin hole (18) and is engaged with the engaged part (27) while being fit into the groove (23). In the engaged part (27), a pin contact face (30) of the connecting pin (16) is in surface contact with a groove contact face (26) in the bottom of the groove (23) and the groove contact face (26) is inclined with respect to a rotation axis (6) of the valve stem (4).

Abstract: Butterfly valves assemblies are provided that include a flowbody, a butterfly plate, an actuator and an upper chimney and a lower chimney disposed within the flowbody. The flowbody has an inner surface defining a channel. The butterfly plate is disposed in the channel, is rotationally mounted to the flowbody, and has an outer periphery. The actuator has an actuator output shaft that is coupled to the valve shaft via a serrated spline coupling. The upper chimney and the lower chimney are configured to include bearing assemblies that constrain radial loads and thrust loads exerted upon the valve shaft and minimize misalignment of the serrated spline coupling.

Abstract: A valve arrangement has an annular housing with valve seat and a two-part valve plate that is rotatable about an axis. The seat is in the form of a disk including two adjacent openings with a web between and the axis is parallel to the web. The two parts of the valve plate are next to each other with their planes parallel and offset in a perpendicular direction. They are connected to each other through one of the openings by a connection piece extending through the one opening. In a closed position for the valve, the valve plate part are respectively positioned on opposite sides of the valve seat and cover and seal the respective openings due to a seal that is between the valve plate parts and the valve seat.

Abstract: A passage intake control device includes a passage member, a valve disposed in the passage member and a shaft passing through a through hole of a valve shaft part of the valve. The valve shaft part includes a fitting hole portion as a part of the through hole. The fitting hole portion is provided by at least a first wall, a second wall, a third wall and a fourth wall. The shaft includes a fitting part having a polygonal shape including at least a first shaft surface a second shaft surface, a third shaft surface and a fourth shaft surface. The fitting part is fitted in the fitting hole portion such that the first to fourth shaft surfaces are opposed to the first to fourth walls of the fitting hole portion, respectively. The first and second walls have protruded ribs. The third and fourth walls include flat portions.

Abstract: Valve shaft apparatus are described herein. An example valve shaft apparatus includes a shaft having a stationary seal and a dynamic seal spaced from the stationary seal. The stationary seal defines a first leakage detection area adjacent the stationary seal and the dynamic seal defines a second leakage detection area adjacent the dynamic seal. A seal leakage detector is integrally formed with the shaft to provide a visual indication of process fluid leakage within the first leakage detection area or within the second leakage detection area. The seal leakage detector has a passageway in fluid communication with the first leakage detection area and the second leakage detection area. The passageway has a cross-sectional profile that changes between the first and second leakage detection areas to prevent fluid from flowing from one of the leakage detection areas into a body of the fluid valve.

Abstract: Butterfly valves assemblies are provided that include a flowbody, a butterfly plate, an actuator and an upper chimney and a lower chimney disposed within the flowbody. The flowbody has an inner surface defining a channel. The butterfly plate is disposed in the channel, is rotationally mounted to the flowbody, and has an outer periphery. The actuator has an actuator output shaft that is coupled to the valve shaft via a serrated spline coupling. The upper chimney and the lower chimney are configured to include bearing assemblies that constrain radial loads and thrust loads exerted upon the valve shaft and minimize misalignment of the serrated spline coupling.

Abstract: A butterfly valve of a swirl system for an internal combustion engine; the butterfly valve displays: a shaft which is rotationally mounted within an intake channel to rotate about a rotation axis; and a butterfly valve plate which is rigidly connected to the shaft and is provided with a seat, which is coaxially arranged with respect to the shaft and accommodates the shaft within itself.

Abstract: A butterfly valve includes a seat ring fitted to an inner peripheral surface of a hollow cylindrical valve body, and a discal valve disc in which a shaft is mounted. The shaft is rotatably mounted in through-holes of the seat ring. An annular protrusion having a first tapered surface inclined at 20°-40° with respect to the valve axis is formed at the peripheral edge of each of the through holes of the seat ring. A bowl-shaped annular depression at each end of the valve shaft hole includes a second tapered surface inclined at 25°-45° with respect to the axis and engaged with a respective first tapered surface.

Abstract: A flap (21) having a flap encompassing frame (11) and provided with first (22) and second (26) flap bearings, in which at least one top part of a housing (16) is fixed to the flap frame by a snap-in connection. A support arm (24) pivotable about the flap axis is arranged on the top part of the housing, and at least one front face (31) of the flap axis is brought into contact with a support surface (30) of the support arm, and a slight air gap of the bearing is adjusted between support surface and the front face, thereby assuring a practically play-free axial mounting of the flap.

Abstract: A valve assembly comprises a flow control valve including a valve shaft, an electrical actuator comprising an actuator output shaft, and a torsion spring coupling the valve shaft and the actuator output shaft.

Abstract: A throttle device for controlling an internal combustion engine, in which the throttle valve is supported precisely employs a bearing recess serving to support the throttle valve shaft which is surrounded by a clamping element. As a result, there is excellent, durable stabilization of the bearing recess. The throttle device is especially well suited to vehicles that have a throttle-type internal combustion engine.