摘要:
L'invention concerne une tête de pulvérisation à fixer sur une tige de commande d'une valve ou d'une pompe, comportant un corps (2) et un obturateur (15) disposé dans un logement (6) dudit corps, ce logement étant apte à communiquer avec une source de produit sous pression lors de l'utilisation. L'obturateur est agencé pour prendre au repos une position d'obturation dans laquelle il repose par une partie tronconique (16) contre une surface d'appui tronconique (29) dudit corps et est apte à s'écarter de cette surface d'appui (29) sous l'effet de la pression du produit contenu dans ledit logement (6) lors de la distribution du produit, pour former un orifice de distribution annulaire (25) permettant de distribuer le produit sous la forme d'un spray conique et creux, au moins au voisinage de la tête. L'obturateur s'écarte de la surface d'appui (29) à l'encontre d'une action de rappel élastique tendant à le ramener dans sa position d'obturation, lorsque la pression du produit diminue
摘要:
The invention relates to a non-return valve (1) for a fluid pump, in particular of a safety brake system of a motor vehicle, comprising a through-flow opening (7) which can be closed by a valve element (10), wherein the valve element (10) can be displaced against the spring force of a valve spring (11) made of coiled round wire in order to expose the through-flow opening. The round wire is coiled in one plane and is arranged with respect to the valve element (10) such that the plane extends at least substantially perpendicularly to the displacement direction of the valve element (10).
摘要:
A pressure limiting valve (1), operationally arranged between a high pressure zone and low pressure zone (HP, LP) of a hydraulic circuit, comprises: a valve body (4) defining a passage (11) for a fluid; a closing member (8) having a stem (10) and a closing head (9) connected thereto and movably engaged with the valve body (4) so as to move along a longitudinal or axial direction (X) between positions (P1, P2) for closing and opening the passage (11), in an opening direction (OD) and closing direction (CD), respectively; a sleeve (12) which is joined to the stem (10); a spring (S1) arranged between the sleeve (12) and the valve body (4) so as to exert a force on the closing member (8) along said longitudinal or axial direction (X), in the closing direction (CD); said sleeve (12) is irreversibly locked to the stem (10) by means of a threadless mechanical connection, in a predefined longitudinal or axial position of the said stem (10), so that the spring (S1) exerts a force of predefined value on the closing member (8) arranged in the closed position (P).
摘要:
A pressure limiting valve (1), operationally arranged between a high pressure zone and low pressure zone (HP, LP) of a hydraulic circuit, comprises: a valve body (4) defining a passage (11) for a fluid; a closing member (8) having a stem (10) and a closing head (9) connected thereto and movably engaged with the valve body (4) so as to move along a longitudinal or axial direction (X) between positions (P1, P2) for closing and opening the passage (11), in an opening direction (OD) and closing direction (CD), respectively; a sleeve (12) which is joined to the stem (10); a spring (S1) arranged between the sleeve (12) and the valve body (4) so as to exert a force on the closing member (8) along said longitudinal or axial direction (X), in the closing direction (CD); said sleeve (12) is irreversibly locked to the stem (10) by means of a threadless mechanical connection, in a predefined longitudinal or axial position of the said stem (10), so that the spring (S1) exerts a force of predefined value on the closing member (8) arranged in the closed position (P).
摘要:
A pressure sensitive fuel injection valve (10) is disclosed consisting of a hollow body (12) having a fuel inlet (14) and vale seat (16) which defines the fuel outlet. A valve stem (20) is disposed within the hollow body (12), the stem having a valve head (22) adapted to cooperate with the valve seat (16) to open and close the valve, and also having a twisted biasing element (24) which responds to fluid pressure on the valve head (22) by linear expansion to open the valve.
摘要:
A valve, in particular an outlet valve of a hydraulic piston pump for delivering a fluid, includes a valve seat, a valve closing body, and a guide mechanism. A valve orifice is formed in the valve seat and has an inner wall. The valve closing body is arranged on the valve seat and is configured to selectively open and close the valve orifice. The guide mechanism is configured to guide the valve closing body relative to the valve seat and extends into the valve orifice. The guide mechanism has at least one fluid-conducting recess and at least one region configured to bear against the inner wall of the valve orifice to guide the valve closing body.
摘要:
A connector clamp (31) contains a pressure-actuated valve that can switch the flow resistance of the connector clamp between two valves depending upon system pressure. A conventional connecting bolt that is suited to connect conventional terminal line loops (32) to the conventional threaded holes of aggregates forms the exterior dimension of the connector clamp.
摘要:
Ein selbsttätig rückstellendes Sicherheitsventil für einen Generatorschalter soll schnell und weit öffnen, auch wenn der anstehende Druck auf einen Ventilschließkörper (1) über einen Ventilhub (a) nicht wesentlich ansteigt oder sogar abfällt. Um dies zu gewährleisten, ist ein Ventilschließkörpergelenk (10) des Ventilschließkörpers (1) über einen 1. Schließkörperhebel (H1) und über ein 1. Schubgelenk (3) mit einem 1. Lagerhebel (H2) gelenkig verbunden, welcher in einem an einer Hebelwand (5) befestigten 1. Lagerhebelgelenk (4) drehbar gelagert ist. Das 1, Schubgelenk (3) steht über eine 1. Druckfeder (8) mit einem an einer Federwand (6) befestigten Federwandgelenk (7) in Druckverbindung. Der Ventilschließkörper (1) ist längs einer Gleitlagerachse (A) beweglich. Es können 1. und 2. Schließkörperhebel (H1, H1') sowie 1. und 2. Lagerhebel (H2, H2') vorgesehen sein, welche spiegelbildlich bezüglich der Gleitlagerachse (A) des Ventilschließkörpers (1) angeordnet sind. Anstelle einer äußeren Druckfeder (8) kann eine innere Zugfeder (9) vorgesehen sein.
摘要:
A fluid pressure release valve includes an aperture 2 through which fluid may flow. An element 1 is moveable to unseal the aperture 2 and open the valve when a force exerted by the fluid in the valve exceeds a predetermined force. Electromagnetic biasing means 11 is arranged to bias the element 1 to seal the aperture 2 and hold the valve closed against the egress of fluid with the predetermined force. The applied bias is variable according to changes in the sensed position of the element 1 and means 12, cooperable with the solenoid 11, is provided to monitor the changes in its electrical properties as a shaft 10 moves in it, indicating a change in position of the element 1. The means 12 is also adapted to vary the bias to reduce the predetermined force responsive to the sensed change in position of the element 1 indicating an opening of the valve.