TH45342B - Conductive solenoid valve - Google Patents

Abstract

DC60 The main valve body non-reversal in the lead solenoid valve without increasing the number of parts and processes and cost. The pilot solenoid valve 1 has 35 lead valve bodies, which are driven to Was opened and closed by an electromagnetic actuator 20, the main valve 15 was opened and closed accordingly Movement of guide valve body 35 and stopper to regulate movement of main valve body 15 in the direction of valve opening And the stopper consists of a 50D stopper surface that has been contacted With and in contact with the end surfaces of the main valve body 15 and the recess 50E, which are Make a recess on the valve opening direction of the main valve body from the 50D stopper surface section, the non-reversing of the main valve body in the leadwound solenoid, without increasing the number of parts and processes and solenoid costs. The pilot valve 1 has a pilot valve body 35 which is driven to Was opened and closed by an electromagnetic actuator 20, the main valve 15 was opened and closed accordingly Following movement of 35 guide valve body and stopper to regulate movement of main valve body 15 in the direction of valve opening And the stopper consists of a 50D stopper surface that has been contacted With and in contact with the end surfaces of the main valve body 15 and the recess 50E, which are Make a recess on the valve opening direction of the main valve body from the 50D stopper surface.

Claims (6)

1. A guided solenoid valve, comprising a guide valve body driven to be opened and closed by an electromagnetic actuator; a main valve body opened and closed according to the movement of the guide valve body; the main valve body is equipped with a main valve port with a main valve seat, and is in contact with and isolated from the main valve seat; an inlet port is provided at the flow end from the main valve seat; an outlet port is provided at the flow end from the main valve seat; an opening spring energizes the main valve body in the opening direction; a closing spring energizes the guide valve body in the closing direction; an energizing and acting coil; an attracting element provided on the inner circumference of the coil; a piston provided facing the attracting element; the guide valve body is provided to move with the piston; a back pressure channel is formed between the piston and the main valve body; a guide passage is formed in the main valve body to contact the back pressure channel and the outlet port; the guide passage is opened and closed by the guide valve body; and a stopper to control the movement of the main valve body in the opening direction, where the stopper consists of a stopper surface that contacts and is in contact with the end surface of the main valve body and a groove. This is formed by creating a recess in the valve opening direction of the main valve body from the baffle surface, where the back pressure channel is defined by the piston. The guide valve is installed at the upper end of the piston, the piston guide tube, and the main valve body, where the guide tube consists of a small diameter section in which the piston is sliding, and a large diameter section in which the main valve body is sliding, and where the baffle has a baffle surface and a recess defined by a step between the small diameter and large diameter sections. 2. Guided Solenoid Valve, which consists of a main valve body equipped with a main valve port and main valve seat; the main valve body, which is in contact with and separated from the main valve seat; an inlet port provided upstream from the main valve seat; an outlet port provided downstream from the main valve seat; an opening spring to energize the main valve body in the opening direction; a closing spring to energize the guide valve in the closing direction; an energizing and acting coil; an actuating element provided on the inner circumference of the coil; a piston provided facing the actuating element; a movable guide valve body with the piston; a back pressure channel formed between the piston and the main valve body; and a guide passage for connecting the back pressure channel and the outlet port. The guide passage is opened and closed by the guide valve. The guide solenoid valve has a stopper to control the movement of the main valve body in the opening direction. The stopper consists of a stopper surface that contacts and is in contact with the end surface of the main valve body and a groove formed in the opening direction of the main valve from the stopper surface. 3. A guided solenoid valve as claimed in claim 2, where the guide path is formed in the main valve body. 4. A guided solenoid valve as claimed in claims 2 or 3, in which the back pressure channel is formed by a piston, the guide valve body is mounted at the upper end of the piston, and a guide tube is provided for guiding the piston and the main valve body. 5. A guided solenoid valve as claimed in claim 4, whose stopper consists of a small diameter section in which the piston is movably inserted, and a large diameter section in which the main valve body is movably inserted, and which is a step between the small and large diameter sections, which is a stopper with a stopper surface and a recess. 6. A guided solenoid valve as claimed in any one of Claims 1 through 5, in which the guide valve body consists of a ball.