Flow path control device and vehicle height adjustment device
AssigneeHitachi Astemo, Ltd.
InventorHiroyuki Miyata
Life of this patent
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Abstract
A flow path control device includes: an on-off valve for opening or closing a flow path through which fluid flows from a first chamber to a second chamber; a control valve which controls the opening and closing of the on-off valve by transiting between a first state and a second state; and a push rod which includes a rod-shaped portion of which one end is pressed and moved to the other side and the other end causes the control valve to transition from the first state to the second state and a protruding portion which protrudes radially outward of the rod-shaped portion from an outer peripheral surface of the rod-shaped portion so as to receive pressure of fluid flowing from the first chamber to the second chamber.
Claims20
A flow path control device, comprising:
- an on-off valve for opening or closing a flow path through which fluid flows from a first chamber to a second chamber;
- a control valve which controls the opening and closing of the on-off valve by transiting between a first state in which the on-off valve is moved to a position where the flow path is closed and a second state in which the on-off valve is moved to a position where the flow path is opened;
- and
- a push rod which includes a rod-shaped portion and a protruding portion, said rod-shaped portion having one end and other end in a longitudinal direction thereof, the other end being configured to cause the control valve to transition from the first state to the second state when the one end is pressed and moved toward the control valve, and said protruding portion protruding radially outward of the rod-shaped portion from an outer peripheral surface of the rod-shaped portion so as to receive pressure of fluid flowing from the first chamber to the second chamber, wherein
- a washer fitted on the outer peripheral surface of the rod-shaped portion is the protruding portion.
A flow path control device, comprising:
- an on-off valve for opening or closing a flow path through which fluid flows from a first chamber to a second chamber;
- a control valve which controls the opening and closing of the on-off valve by transiting between a first state in which the on-off valve is moved to a position where the flow path is closed and a second state in which the on-off valve is moved to a position where the flow path is opened;
- and
- a push rod which includes a rod-shaped portion and a protruding portion, said rod-shaped portion having one end and other end in a longitudinal direction thereof, the one end being configured to cause the control valve to transition from the first state to the second state when the one end is pressed and moved toward the control valve, and said protruding portion protruding radially outward of the rod-shaped portion from an outer peripheral surface of the rod-shaped portion so as to receive pressure of fluid flowing from the first chamber to the second chamber, wherein
- the protruding portion has a plurality of holes penetrating in an axial direction of the rod-shaped portion.
Dependencies are inferred from the claim text.