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gas control valve

A gas control valve and gas technology, applied in the direction of combustion control, gaseous fuel pretreatment, gaseous fuel supply/distribution, etc., can solve the problem of reduced reliability of the closed surface, and achieve the effects of inhibiting wear, reducing friction, and preventing wear

Active Publication Date: 2016-12-14
MIKUNI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is the following problem: in the operation of the safety valve and the flow regulating valve, friction is always generated between the rotating disk and the fixed disk, and the reliability of the closing surface is reduced due to wear

Method used

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Experimental program
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Embodiment Construction

[0024] Hereinafter, one embodiment of the present invention will be described with reference to the drawings. figure 1 It is a schematic diagram showing the configuration of main parts of the gas control valve 1 of the present embodiment. The gas control valve 1 of this embodiment is applied to gas equipment such as a gas furnace, and has a flow regulating valve 11 and a safety valve 12, wherein the flow regulating valve 11 is used to adjust the supply flow rate of the gas, and the safety valve 12 is used to cut off the flow rate of the gas. supply.

[0025] The gas control valve 1 of the present embodiment is formed so that the flow regulating valve 11 and the safety valve 12 are opened and closed by a single motor 28 . The flow control valve 11 has a rotary body with a closing function that does not allow gas communication within the range of the rotation angle in which the motor 28 operates the safety valve 12 , that is, the safety valve operating range. The rotating body...

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PUM

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Abstract

A transmission cut-off part (stopper (25) and locking part (26)) is provided, and the transmission cut-off part is used to cut off the power transmission from the motor (28) to the rotating disc (13) within the operating range of the safety valve. The rotation of the rotary disk is stopped within the operating range of the safety valve, thereby avoiding friction between the rotary disk 13 and the fixed disk 14 . In addition, it also has a variable contact force part (spring member (27) and transmission lift cam), which is used to change the contact force of the rotating disk (13) to the fixed disk (14), by making The sticking force of the rotating disk (13) to the fixed disk (14) is smaller in the flow adjustment range than in the safety valve operating range, which can suppress the generation of pressure between the rotating disk (13) and the fixed disk (14) in the flow adjustment range. friction.

Description

technical field [0001] The present invention relates to a gas control valve for controlling the supply amount of fuel gas supplied to a gas burner of a gas appliance. Background technique [0002] In general, gas appliances such as gas furnaces are provided in series with a flow control valve for adjusting the supply flow rate of gas and a safety valve for shutting off the supply of gas. [0003] Conventionally, an air valve has been proposed in which a flow regulating valve and a safety valve are opened and closed by a single motor (for example, refer to Patent Document 1). In the gas valve described in Patent Document 1, the flow regulating valve includes a rotary body with a closing function that does not allow gas communication within a certain rotation angle range of the motor. The rotating body is composed of a rotating disk and a fixed disk, wherein the rotating disk is connected to the rotating shaft of the motor, and the fixed disk has a plurality of communicating ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23K5/00
CPCF23K5/007F23K2900/05002F23N1/005F23N5/245F23N2235/18F23N2235/24F23K2400/201
Inventor 里宏一奥寺太一
Owner MIKUNI CORP