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US 2026/0160358 A1Published application
Flow Rate Control Valve
AssigneesHyundai Motor Company, Kia Corporation, Dong-A University Research Foundation for Industry-Academy Cooperation
InventorsSung Jae Lee, Seung Ho Han, Hyung Joon Park
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Abstract
A flow rate control valve is provided by which an operation of a solenoid valve is operated more accurately and smoothly even when a larger difference pressure occurs between a hydrogen storage tank and a pipeline.
Claims20
A flow rate control valve comprising:
- a body comprising a lower portion in which an inlet and an outlet are formed;
- a coil installed on an outer peripheral surface of the body, and configured to apply a magnetic field;
- a solenoid core installed in a hollow portion of the body, and configured to induce the magnetic field applied by the coil;
- a first valve plunger moveably installed in the hollow portion of the body;
- and
- a second valve plunger disposed to be movable in conjunction with the first valve plunger, and having an orifice in an interior the second valve plunger,
- wherein the body forms a first space between the first valve plunger and the second valve plunger and forms a second space between the second valve plunger and the outlet, wherein the second space has a larger diameter than the first space,
- wherein the first valve plunger is configured to block the first space in a state in which the first valve plunger is raised, and
- wherein the second valve plunger is configured to, based on a differential pressure between the first space and the second space, be positioned in a state in which the outlet is open.
6 more elements
A flow rate control valve comprising:
- a body comprising a lower portion forming an inlet;
- a valve seat attached to the lower portion of the body and forming an outlet;
- a conductive coil attached to an upper portion of the body;
- a solenoid core arranged inside the conductive coil;
- a first valve plunger comprising a side protrusion protruding outward around a circumference of the first valve plunger;
- and
- a second valve plunger, movable installed in the body, comprising:
- an upper cylindrical portion, wherein an inner surface of the upper cylindrical portion comprises an inward step;
- and
- a lower orifice portion that forms an orifice,
- wherein the first valve plunger is moveably inserted within the upper cylindrical portion such that the side protrusion is in contact with the inner surface of the upper cylindrical portion below the inward step, and
- wherein a first space is formed between the side protrusion, a side of the first valve plunger, and the second valve plunger, and a second space is formed between the second valve plunger, the body, and the valve seat, wherein the second space has a larger diameter than the first space.
9 more elements
Dependencies are inferred from the claim text.