| 主权项 |
1. A fluid control valve device comprising:
a first housing having an inflow hole configured to enable inflow of fluid, a first fluid chamber connected to the inflow hole, a first hole connected to the first fluid chamber, and a first valve seat portion formed around an outer periphery of the first hole; a second housing having a second hole connected to the first hole, a second fluid chamber connected to the second hole, an outflow hole connected to the second fluid chamber and configured to enable outflow of fluid, a second valve seat portion formed around an outer periphery of the second hole, and a third valve seat portion formed around an outer periphery of the outflow hole; a first valve element axially movable in the first fluid chamber and configured to make contact with the first valve seat portion at an outer periphery; an actuator configured to move the first valve element; a second valve element axially movable in the second fluid chamber between the second valve seat portion and the third valve seat portion, the second valve element configured to make contact with the second valve seat portion or the third valve seat portion at an outer periphery; a biasing member configured to bias the second valve element in a direction in which the second valve element makes contact with the second valve seat portion; and an outer peripheral passage formed between an outer periphery of the second valve element and the second housing to enable flow of fluid between a space formed with the second valve element on a side of the second hole and a space formed with the second valve element on a side of the outflow hole. |
