Patent ID: 8100142
Filing Date: 2012-01-24
Classification: F15B,F16H,F16K,Y10T

Abstract:
1. A bleed solenoid valve comprising: a valve main body that is hollow and formed with an input port into which hydraulic fluid flows in an axial direction, an output port that outputs hydraulic fluid sideward, and a discharge port that discharges hydraulic fluid sideward; a flow-changing part that is accommodated inside the valve main body, and formed with a first flow path, wherein hydraulic fluid that enters through the input port and flows inside due to a throttle may be output from the output port and discharged from the drain port, and a second flow path, wherein hydraulic fluid is directly output from the output port without passing through the throttle, with the flow-changing part switching between blocking and opening the second flow path in accordance with movement in the axial direction; a valve shaft that is accommodated inside the flow-changing part, and capable of switching among a state in which the discharge port is closed with axial movement of the flow-changing part and the valve shaft, and hydraulic fluid flows through the first flow path and the second flow path, a state in which the second flow path is blocked and hydraulic fluid flows through the first flow path with adjustment of the open state of the discharge port, and a state in which the input port is closed and the output port is in communication with the discharge port; and a solenoid part that moves the valve shaft in the axial direction.