# US 12,222,044 B2 · Electromagnetic valve unit

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,222,044 B2
- Document ID: US12222044B2
- Status: Granted
- Kind: B2
- Application number: 18/431,733
- Filed: 2024-02-02
- Published: 2024-05-30
- Granted: 2025-02-11
- Earliest claimed: 2018-09-10
- Assignees: Eagle Industry Co., Ltd.
- Applicants: Eagle Industry Co., Ltd.
- Inventors: Hideaki Kozakura; Shuji Fukunaga; Takafumi Yamanaka
- Web page: https://patentgrep.com/patent/US12222044B2

## CPC

- F16K 27/029: {Electromagnetically actuated valves}
- F16K 31/0613: {with cylindrical slides}
- F16F 9/469: {Valves incorporated in the piston (F16F9/467 takes precedence)}
- F16K 3/24: with cylindrical valve members
- F16F 1/3732: {having an annular or the like shape, e.g. grommet-type resilient mountings}
- F16F 9/3207: {Constructional features (F16F9/34 - F16F9/50 take precedence; assembly or repair F16F9/3271)}
- F16K 27/048: {Electromagnetically actuated valves}
- F16K 2200/501: Cartridge valves
- F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)}
- F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION

## Abstract

An electromagnetic valve unit held so as to be sandwiched between a receiving portion of a housing portion of control equipment and a pressing member includes a shoulder portion to be opposed to the receiving portion of the housing portion and an annular elastic member provided with a protruded portion to be inserted into a recessed portion formed at the shoulder portion. The annular elastic member is further provided with an annular deformation portion that is deformable in the axial direction so as not to press the protruded portion in the axial direction.

## Claims

### Claim 1

An electromagnetic valve unit configured to be held sandwiched between a receiving portion of a housing portion of control equipment and a pressing member in an axial direction of the electromagnetic valve unit, comprising:
a shoulder portion configured to be opposed to the receiving portion of the housing portion; and
an annular elastic member provided with a protruded portion configured to be inserted into a recessed portion formed at the shoulder portion,
wherein the annular elastic member is further provided with an annular deformation portion that is deformable in the axial direction of the electromagnet valve unit so as not to press the protruded portion in the axial direction,
the recessed portion is formed to be recessed in the axial direction,
the protruded portion is formed to be protruded in the axial direction,
the annular elastic member has an outer diameter side portion which does not overlap with the protruded portion in the axial direction, an inner diameter side portion which does not overlap with the protruded portion in the axial direction, and an intermediate portion which is disposed between the outer diameter side portion and the inner diameter side portion and overlaps with the protruded portion in the axial direction,
the annular deformable portion is formed by the outer diameter side portion and the inner diameter side portion,
part of the annular elastic member is protruded in the axial direction from an upper surface of the shoulder portion in a state in which the protruded portion is inserted into the recessed portion and in which the annular elastic member is not pressed, and
an outer peripheral surface and an inner peripheral surface of the protruded portion are stepless surfaces.

### Claim 2 (depends on 1)

The electromagnetic valve unit according to claim 1, wherein
the protruded portion is press-fitted in the recessed portion.

### Claim 3 (depends on 2)

The electromagnetic valve unit according to claim 2, wherein
the recessed portion and the protruded portion are formed in an annular shape.

### Claim 4 (depends on 2)

The electromagnetic valve unit according to claim 2, wherein
the shoulder portion has a stepped shape formed by an end surface extending from an outer peripheral surface of the electromagnetic valve unit in a direction perpendicular to the axial direction and an outer peripheral surface extending from a radially inward edge of the end surface in the axial direction, and
the recessed portion is formed in the end surface of the shoulder portion.

### Claim 5 (depends on 1)

The electromagnetic valve unit according to claim 1, wherein
the recessed portion and the protruded portion are formed in an annular shape.

### Claim 6 (depends on 1)

The electromagnetic valve unit according to claim 1, wherein
the shoulder portion has a stepped shape formed by an end surface extending from an outer peripheral surface of the electromagnetic valve unit in a direction perpendicular to the axial direction and an outer peripheral surface extending from a radially inward edge of the end surface in the axial direction, and
the recessed portion is formed in the end surface of the
shoulder portion.