Pistola pulverizadora para la expulsión de un fluido

• Main Authors: TARANTA, CLAUDE, TORRES MORATO, JOSÉ ANTONIO, WELTER, PETER, ZARCO MONTERO, ANTONIO, NIESAR, GUNTER, NOLTE, MARC, HENKES, STEFFEN, HUBER, ROBERT
• Format: Patent
• Language: Spanish
• Published: 16.04.2015
• Subjects: APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NOZZLES; PERFORMING OPERATIONS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; WEAPONS

Pistola pulverizadora para la expulsión de un fluido con - al menos un cilindro (1), en el que está alojado de forma móvil un émbolo (2), formándose en el cilindro (1) una cámara de fluido (3) cuyo volumen se puede modificar mediante un movimiento del émbolo (2) y en la que está formada al menos una primera abertura de cilindro (5) y - una abertura de pulverización que está unida con la primera abertura de cilindro (5) del cilindro (1) a través de una conducción de unión (20), de tal manera que un fluido alojado en la cámara de fluido (3), que se presiona mediante la presión ejercida por el émbolo (2) a través de la primera abertura de cilindro (5) al exterior llega a través de la conducción de unión (20) a la abertura de pulverización y allí se expulsa, caracterizada porque - en la conducción de unión (20) está dispuesta una válvula de fluido (21) y - en el cilindro (1) está previsto un sensor (29) con el que se puede registrar una posición definida del émbolo (2) en la que durante el procedimiento de expulsión se encuentra todavía fluido en la cámara de fluido (3) y con el que la válvula de fluido (21) se puede activar, cerrándose mediante el sensor (29) la válvula de fluido (21) cuando se ha registrado la posición definida del émbolo (2). The present invention relates to a spray gun for the expulsion of a fluid, with at least one cylinder (1) in which a piston (2) is mounted movably, the cylinder (1) having formed in it a fluid chamber (3), the volume of which can be varied by means of a movement of the piston (2) and in which at least one first cylinder orifice (5) is formed, and a spray orifice which is connected to the first cylinder orifice (5) of the cylinder (1) via a connecting line (20), so that a fluid, which is received by the fluid chamber (3) and is pressed out through the first cylinder orifice (5) by the pressure exerted by the piston (2), arrives via the connecting line (20) at the spray orifice and is expelled there. The spray gun according to the invention is distinguished by the fact that a fluid valve (21) is arranged in the connecting line (20), and, in the cylinder (1) a sensor (29) is provided, by means of which a defined position of the piston (2), in which fluid is still located in the fluid chamber (3) during the expulsion operation, can be detected, and by means of which the fluid valve (21) can be actuated, the fluid valve (21) being closed by means of the sensor (29) when the defined position of the piston (2) has been detected. The invention relates, furthermore, to the use of such a spray gun for the expulsion of plant protectants.