# US 11,906,059 B2 · Gas governor

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- Number: US 11,906,059 B2
- Document ID: US11906059B2
- Status: Granted
- Kind: B2
- Application number: 18/155,220
- Filed: 2023-01-17
- Published: 2023-10-12
- Granted: 2024-02-20
- Earliest claimed: 2022-04-11
- Assignees: Rinnai Corporation
- Applicants: Rinnai Corporation
- Inventors: Katsuya Noritake; Kotaro Kuzuya
- Web page: https://patentgrep.com/patent/US11906059B2

## CPC

- F16K 15/06: with guided stems
- F16K 31/0655: {Lift valves}
- F16K 31/0696: {Shock absorbing, e.g. using a dash-pot}
- F16K 41/12: with approximately flat diaphragm
- F16K 15/182: {with actuating mechanism}
- F23K 2900/05001: Control or safety devices in gaseous or liquid fuel supply lines
- F23K 2900/05002: Valves for gaseous fuel supply lines
- F23N 2235/14: electromagnetically operated
- F23N 2235/16: variable flow or proportional 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)}
- F23K: FEEDING FUEL TO COMBUSTION APPARATUS (fuel feeders specially adapted for fluidised bed combustion apparatus F23C10/22)
- F23N: REGULATING OR CONTROLLING COMBUSTION (control devices specially adapted for combustion apparatus in which combustion takes place in a fluidised bed of fuel or other particles F23C10/28; condition responsive controls for regulating combustion in domestic stoves with open fires for solid fuel F24B1/187)

## Abstract

Not only a cylindrical weight is inserted with a clearance around an outside of a first axis part or a second axis part that extends opposite to the first axis part and is movable freely in an axial direction but also an annular seat surface on which the cylindrical weight is able to be seated by self-weight is provided with a governor valve. A projecting part(s) is provided with only a part in circumferential direction of one of the annular seat surface and a lower end surface of the cylindrical weight. The cylindrical weight is made sure to be supported on the annular seat surface in an inclined state from an upright posture by contact of the projecting part(s) with the other of the annular seat surface and the lower end surface of the cylindrical weight.

## Claims

### Claim 1

A gas governor comprising,
a casing that has a primary pressure chamber, a secondary pressure chamber above or below the primary chamber, and a valve seat which is disposed between the primary pressure chamber and the second pressure chamber;
a diaphragm that faces to the primary pressure chamber at an opposite side of the valve seat; and
a governor valve that has a valve body part with a diameter which is enlarged in sequence toward an end part at a side of the secondary pressure chamber,
wherein a first axis part of the governor valve, which extends from the valve body part to a side of the diaphragm, is connected to the diaphragm, and by displacing the governor valve through the diaphragm depending on gas pressure fluctuation in the primary pressure chamber, gas pressure fluctuation in the secondary pressure chamber is suppressed and
wherein the gas governor further comprises a cylindrical weight that is inserted with a clearance around an outside of a second axis part of the governor valve, which extends from the valve body part to an opposite side of the diaphragm, or the first axis part, and is movable freely in an axial direction, and an annular seat surface on which the cylindrical weight is able to be seated by self-weight,
wherein:
a projecting part(s) is provided with only a part in a circumferential direction of one of the annular seat surface and a lower end surface of the cylindrical weight, and by contact of the projecting part(s) with the other of the annular seat surface and the lower end surface of the cylindrical weight, the cylindrical weight is supported on the annular seat surface in an inclined state from an upright posture.

### Claim 2 (depends on 1)

The gas governor as claimed in claim 1, wherein the projecting part(s) is provided with the annular seat surface,
wherein the projecting part(s) is provided to extend from an inner circumferential edge to an outer circumferential edge of the annular seat surface.

### Claim 3 (depends on 1)

The gas governor as claimed in claim 1, wherein, with the part in the circumferential direction of the one of the annular seat surface and the lower surface of the cylindrical weight, a plurality of the projecting parts that are disposed at a distance in the circumferential direction are provided and a central angle of a width in the circumferential direction between contact parts of two of the projecting parts, one of which is disposed at one side in the circumferential direction and the other of which is disposed at the other side, with the other of the annular seat surface and the lower end surface of the cylindrical weight is set within a range from 30° to 60°.

### Claim 4 (depends on 3)

The gas governor as claimed in claim 3, wherein the projecting part(s) is provided with the annular seat surface,
Wherein the projecting part(s) is provided to extend from an inner circumferential edge to an outer circumferential edge of the annular seat surface.