Abstract:
A valve assembly failsafe configured to be coupled to an actuator of a coolant control regulator assembly is provided. The valve assembly failsafe includes a wind arm, a spring that engages the wind arm under spring tension, a latch that engages the wind arm, a drive gear that engages the wind arm and the actuator, and a driver that engages the latch. The valve assembly failsafe is configured to be positioned in a set state where the latch engages and retains the wind arm under spring tension and the drive gear freely rotates during rotation of the actuator, and a tripped state where the driver rotates the latch to disengage the latch from the wind arm, causing the wind arm to rotate under the spring tension to engage the drive gear and cause the drive gear to drive the actuator to a default position.
Abstract:
La vanne (5) pour un circuit fluidique comporte un obturateur (55) comprenant deux disques ajourés coaxiaux montés mobiles à rotation, selon un axe de rotation (X) passant par un centre des disques et perpendiculaire aux disques, l'un par rapport à l'autre et en appui l'un sur l'autre, l'obturateur s'étendant en travers d'un tronçon (90) d'écoulement, l'un des disques ajourés étant monté mobile à coulissement seul selon l'axe de rotation dans le tronçon de manière étanchée avec une paroi périphérique (50) du tronçon et entrainant l'autre des disques ajourés dans le coulissement, l'autre des disques ajourés comportant un suiveur de came (552) et la paroi périphérique du tronçon comportant un chemin de came (51), le suiveur coopérant avec le chemin pour positionner les deux disques l'un par rapport à l'autre dans des positions prédéfinies relatives lors d'un mouvement de rotation des disques l'un par rapport à l'autre.
Abstract:
The present invention relates to systems and apparatus for controlling actuation and flow/pressure simultaneously over a timed cycle. In particular, the present invention relates to a gas/fluids actuator for readily controlling gas/fluids flow. More specifically, the present invention relates to novel improvements in timed gas/fluids flow actuation pressure/flow control and cessation thereof including: a timer including: a valve, an actuator element for controlling flow through the valve, and a timer for readily activating and deactivating the actuator.
Abstract:
Die Erfindung betrifft eine Ventilpistole (10) für ein Hochdruckreinigungsgerät mit einem Ventil (22), das ein Ventilgehäuse (24) aufweist mit einem sich von einem Einlass (26) zu einem Auslass (28) erstreckenden Durchgangskanal (30), der einen ersten Kanalabschnitt (52) aufweist mit einer im Abstand zum Einlass (26) angeordneten ersten Durchmesserverengung (56), an der ein Federhalter (90) angeordnet ist, wobei im ersten Kanalabschnitt (52) im Abstand zur ersten Durchmesserverengung (56) ein Ventilsitzelement (108) angeordnet ist, das einen Ventilsitz (110) ausbildet, wobei ein Schließkörper (122) in einer Schließstellung am Ventilsitz (110) anliegt und von einer sich am Federhalter (90) abstützenden Schließfeder (124) mit einer Schließkraft beaufschlagbar ist, und wobei der Schließkörper (122) durch Verschieben eines Ventilstößels (132) in eine Offenstellung bewegbar ist. Um die Ventilpistole (10) derart weiterzubilden, dass sie kostengünstiger herstellbar und montierbar ist, wird vorgeschlagen, dass der erste Kanalabschnitt (52) im Bereich von der ersten Durchmesserverengung (56) bis zum Ventilsitzelement (108) als geradliniger, zylindrischer, stufenloser Ventilaufnahmebereich (88) ausgestaltet ist und der Federhalter (90) einen in den Ventilaufnahmebereich (88) einpressbaren Einpressbereich (94) aufweist.
Abstract:
A valve actuator assembly, comprising: a regulating member (312) having a volume configured to retain a fluid, the volume having a first volume and a second volume; a linkage member (340, 342) coupled with the regulating member (312); a translating member (304) coupled with the linkage member (340, 342), the translating member (304) configured to move between a first position and a second position that is different from the first position; and a loading member (316) configured to generate a biasing force, wherein the linkage member (340, 342) is configured to direct the biasing force to the regulating member (312) to change the volume from the first volume to the second volume, and wherein the second position corresponds with the second volume.
Abstract:
Dispositivo de presión de consigna variable que comprende: - Un actuador electromecánico que desplaza un eje o empujador (1) linealmente, - Un adaptador que transforma el desplazamiento lineal del actuador electromecánico en un desplazamiento de un obturador o platillo de empuje (4) del piloto para establecer una presión de consigna. - Una válvula pilotada o no con regulación variable mediante la compresión del obturador o platillo de empuje (4) contra un muelle, donde el actuador puede ser realizado mediante un husillo (3) rectificado para bolas dispuesto en el extremo de un empujador o eje (2) o mediante una palanca (8) que actúa sobre un segundo empujador (12) que penetrando en el piloto actúa sobre el obturador o platillo de empuje (4) del piloto, o directamente mediante un empujador (2).
Abstract:
Valve system with rotary stepping actuator to actuate a valve stem. An actuator drive shaft is supported for stepwise rotation in clockwise and counterclockwise directions to impart rotation to a valve stem nut to axially move a valve stem to open and close valve flow trim. The drive shaft forms peripheral first and second slotted circular drive paths co-axially spaced from each other. The drive paths include outwardly-opening, circumferentially-spaced slots which are matched in number, size and spacing, but the slots in the first drive path are rotationally offset from the slots in the second drive path by a set fraction, for example one half of the slot spacing. Actuation assemblies provide separate forward and reverse actuation cycles to the drive shaft to incrementally rotate the drive shaft in predetermined angular increments (steps) set by the slot spacing. Due to the offset, a counter step in a direction counter to the direction of a directly preceding step rotates the drive shaft by an amount less than the predetermined angular increment, as determined by the set fraction. If the set fraction is one half, the counter step rotates the drive shaft by a half step, while the next following step in the same counter direction is a full step in the predetermined angular increment.
Abstract:
Disclosed are a method and device for modulating the downstream pressure output of a pressure reducing hydraulic control valve in response to the flow demand fluctuation the method comprising. Included is an adjustable pressure pilot valve mechanism having a drive element extending from the control valve. The drive element is displaceable in response to a flow capacity through the hydraulic control valve. Also included is an adjustable pressure pilot valve deployed along a control tube connecting an upstream pressure port to a downstream pressure port, the adjustable pressure pilot valve associated with the drive element such that adjustable settings of the adjustable pressure pilot valve are responsive to displacement of the drive element.
Abstract:
An actuator including a barrel, two end caps, a piston, a guide slot, a hollow shaft and a twisted bar connected to an external rotating hub whereby any linear movement of the actuator shaft produces proportionate rotation of the external hub either clockwise or anti-clockwise direction, dependent on the direction of the linear travel of the actuator shaft.