US 12,460,735 B2
Solenoid valve device
Hiroki Shimizu, Kanagawa (JP)
Assigned to NIDEC POWERTRAIN SYSTEMS CORPORATION, Kanagawa (JP)
Filed by NIDEC POWERTRAIN SYSTEMS CORPORATION, Kanagawa (JP)
Filed on Mar. 22, 2024, as Appl. No. 18/613,115.
Claims priority of application No. 2023-053746 (JP), filed on Mar. 29, 2023.
Prior Publication US 2024/0328529 A1, Oct. 3, 2024
Int. Cl. F16K 31/06 (2006.01); F16K 27/02 (2006.01)
CPC F16K 31/0655 (2013.01) [F16K 27/029 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A solenoid valve device comprising:
a nozzle body including a suction side flow path and a discharge side flow path, and including a valve body housing portion that houses a valve body, the valve body opening and closing the suction side flow path and the discharge side flow path; and
a solenoid that drives the valve body in an axial direction,
wherein
the solenoid includes a plunger that moves in the axial direction by excitation of a coil,
the nozzle body includes a tubular valve body holding member having an opening on one side in the axial direction,
another side in the axial direction of the valve body is supported by the tubular valve body holding member so as to be movable in the axial direction,
the suction side flow path and the discharge side flow path are connected to each other via a flow path opening,
the valve body includes, on one side in the axial direction of the valve body, a flow path open and close part that opens and closes the flow path opening,
the valve body includes, between an end on the one side and an end on the other side in the axial direction of the valve body, an opening open and close part that opens and closes the opening of the tubular valve body holding member,
an outer periphery on the one side in the axial direction of the valve body includes a plurality of first guide portions that protrudes from the outer periphery to an inner wall of the tubular valve body holding member and is guided by the inner wall of the tubular valve body holding member,
an outer periphery on the other side in the axial direction of the valve body includes a plurality of second guide portions that protrude from the outer periphery to the inner wall of the tubular valve body holding member, is guided by the inner wall of the tubular valve body holding member, and is disposed on the other side in the axial direction of the valve body from the plurality of first guide portions,
a contour of a cross section perpendicular to the axial direction of a portion in contact with the inner wall of the tubular valve body holding member of each of the plurality of first guide portions and the plurality of second guide portions is a curve, and
a seal member that seals a gap between the tubular valve body holding member and the valve body housing portion is disposed between the tubular valve body holding member and the valve body housing portion.