摘要:
A valve for control of a fluid flow including a valve housing, fluid control means for controlling the flow of fluid through the valve housing, where the fluid control means is arranged inside the valve housing, shaft means having a set of shaft friction surfaces including a first shaft friction surface and a second shaft friction surface arranged in a mutual shaft friction surface angle, the shaft friction surface angle is an inside angle between the first shaft friction surface and the second shaft friction surface and the fluid control means is arranged to be displaced along the rotational axis of the shaft means in accordance with a rotation of the shaft means, collar means including a set of collar friction surfaces having a first collar friction surface and a second collar friction surface arranged in a mutual collar friction surface angle, where the collar friction surface angle is an inside angle between the first collar friction surface and the second collar friction surface and the set of collar friction surfaces are arranged to mesh with the set of shaft friction surfaces and where the shaft friction surface angle and the collar friction surface angle are between 110° and 175°, preferably between 120° and 170°.
摘要:
The invention relates to a mechatronic assembly for fluid control including a valve body (10), a seat (11) on which a movable needle (12) rests in order to close the fluid pipe (1) to be controlled, a polyphase motor (2) comprising a stator (21) and a rotor (22), a translatably movable central shaft (13) controlling the movement of the needle (12), a device for converting the rotation of the rotor (22) into translation of the central shaft (13), an inner sealing housing (24) rigidly connected to the stator (21) and surrounding the rotor (22) on the periphery thereof and isolating the rotor (22) from the stator (21), and an outer housing (25) surrounding the stator (21). The outer housing (25) of the stator rests at least partially on one end (29) of the inner sealing housing (24) so that the outer housing (24) at least partially absorbs the inner pressures applied to said inner housing (24).
摘要:
A valve apparatus for a fluid transmission line. The valve apparatus comprising a housing; a drive mechanism; a leadscrew selectively rotatable in a first or second rotational leadscrew direction by the drive mechanism; a drive gear mounted to the housing, the drive gear configured to be selectively driven in a first or second drive gear direction during rotation of said leadscrew in the first or second leadscrew direction to operate an iris mechanism.
摘要:
A direct-action-type electrically-operated valve comprises a valve base (30) provided with a valve cavity, a motor (10) disposed on the upper end the valve base, and a screw rod (312). The screw rod (312) is fitted and connected to a nut (41) by means of threads. The nut is connected to a spool (42). Axial positions of a rotor (12) of the motor and the valve base are relatively fixed. The upper end of the screw rod is fixedly connected to the rotor. Driven by the nut, the spool moves along the axial direction of the valve cavity to open or close a valve opening (30a) disposed on the valve base. The spool is a tubular structure provided with a balancing channel, and a seal piece for dividing the valve cavity into two independent cavities is disposed on the periphery of the spool. A gear system is removed from the electrically-operated valve, so that unnecessary rotations are reduced, friction loss is reduced, and a response is direct, reliable and sensitive; the axial positions of the rotor and the valve base are relatively fixed, that is, the relative fixation of the rotor and a coil element during the working enables driving force to be stable; and obviously, for valve openings with a same size, the size of the motor using the valve opening is smaller than that in the background technology, which can meet requirements of miniaturization and large capacity.
摘要:
Vorrichtung (1) zur Betätigung eines Ventils beinhaltend ein Gehäuse (2) , wobei das Gehäuse einen Klarsichtbereich (5) aufweist und das Gehäuse vorzugsweise aus einem Ober- (3) und Unterteil (4) gebildet ist, eine Getriebebaugruppe (6), einen Elektromotor (7) und eine Basisplatine (8) zur Befestigung von elektrischen Bauteilen, wobei im Gehäuse vorzugsweise auf der Basisplatine LEDs oder eine mehrfarbige LED und ein Lichtleiter (9) angeordnet sind, wobei durch Leuchten der LEDs die Stellung oder eine andere Funktion des Ventils angezeigt wird und der Lichtleiter das Licht der LEDs zur Stellungs-oder Fehlfunktionsanzeige bündelt und fokussiert.
摘要:
The invention provides a non-rising spindle gate valve, comprising a body (2), a bonnet (3) connected to the body (2), a stem (4), a wedge (5) and a shear device (6), an upper end of said stem (4) being connected to the shear device (6) and a lower end thereof being connected to the wedge (5), wherein said stem (4) is relatively rotatably supported in said bonnet (3) by rolling bearings. The gate valve uses a shear device (6) to protect inner components of the valve from excessive operation torque. Guides are used to position the wedge in a process of rubber coating so as to ensure uniform thickness of coating. The gate valve has a small operation torque, is sealed reliably, has a long service life, and is easy to assemble.
摘要:
Die Erfindung betrifft ein Handventil (1) mit einem Ventilhauptkörper (2) und einer darin zumindest in einer Betätigungsrichtung beweglich angeordneten Spindel (3), die zur Betätigung des Handventils mittels eines an der Spindel (3) angeordneten Handrades (4) in seiner Lage relativ zum Ventilhauptkörper (2) zusammen mit dem Handrad (4) verstellt werden kann. Das Handventil (1) weist eine Hubbegrenzung (5) für die Spindel (3) mit einem Anschlagselement (6) auf, das in seiner Lage in Bezug auf den Ventilhauptkörper (2) einstellbar ist. die Erfindung zeichnet sich dadurch aus, dass die Hubbegrenzung (5) eine Halterung (7) für das Anschlagselement (6) aufweist, die mit dem Handrad (4) drehbar aber in ihrer Lage zum Ventilhauptkörper (2) in Betätigungsrichtung der Spindel (3) fixiert am Ventilhauptkörper (2) gehalten ist.