CN201277586Y - Gas cut-off and flux valve for automobile heater - Google Patents

Abstract

The utility model provides a gas cut-off and flow valve for a vehicle heater. The cut-off and flow valve includes a body, a cut-off solenoid valve and a flow regulating solenoid valve. Closed hole, gas flow hole valve seat and gas outlet; the gas inlet communicates with the gas inlet hole valve seat through the gas hole, the gas inlet hole valve seat communicates with the gas flow hole valve seat through the gas opening and closing hole, and the flow hole valve seat passes through The gas compensation metering hole and the gas main metering hole are in communication with the gas outlet, and the gas main metering hole is in a normal connection state with the gas opening and closing hole and the gas outlet; a cut-off solenoid valve is installed on the valve seat of the air inlet hole, and a stop solenoid valve is installed on the valve seat of the flow hole. Flow regulating solenoid valve. The utility model designs the flow regulating solenoid valve and the cut-off solenoid valve on the same body, and makes the gas transfer to the gas outlet through the cut-off solenoid valve and the flow regulating solenoid valve in a short distance, and has the characteristics of small volume and compact structure.

Description

Gas cut-off and flow valve for vehicle heater

technical field

The utility model relates to a gas cut-off and flow valve for a vehicle heater, which belongs to the technical field of vehicle heater control valves.

Background technique

With the increasing shortage of fuel oil and the increasing seriousness of air pollution, many vehicles have switched to gaseous fuels with better economy and emission performance. It is also imperative to use fuel oil heaters for vehicles as an independent heating device for winter heating, defrosting and cold start, etc., to use gas fuels. As for the valve for flow adjustment, the current gas control valves are not suitable for vehicle heaters no matter in volume or function.

Contents of the invention

The utility model provides a gas cut-off and flow valve for the vehicle heater which is small in size and compact in structure, and is suitable for the vehicle heater for the need of the existing vehicle heater for burning gas fuel.

The gas cut-off and flow valve for the vehicle heater of the utility model adopts the following technical scheme:

The gas cut-off and flow valve for the vehicle heater includes a body, a cut-off solenoid valve and a flow regulating solenoid valve. The body is provided with a gas inlet, a gas inlet valve seat, a gas opening and closing hole, a gas flow hole valve seat and a gas outlet; The valve seat of the gas inlet hole is provided with a gas hole, and the valve seat of the gas flow hole is provided with a gas compensation metering hole and a gas main metering hole; the gas inlet communicates with the valve seat of the gas inlet hole through the gas hole, and the valve seat of the gas inlet hole The gas opening and closing hole communicates with the gas flow hole valve seat, the gas flow hole valve seat communicates with the gas outlet through the gas compensation metering hole and the gas main metering hole, and the gas main metering hole is in a normal state with the gas opening and closing hole and the gas outlet; A cut-off electromagnetic valve is installed on the valve seat of the gas inlet hole, and a flow regulating electromagnetic valve is installed on the valve seat of the gas flow hole.

In the utility model, the flow regulating solenoid valve and the cut-off solenoid valve are designed on the same body, and the gas is transferred to the gas outlet through the cut-off solenoid valve and the flow regulating solenoid valve at a short distance. It is greatly simplified, has the characteristics of small size and compact structure, and is suitable for vehicle heaters.

Description of drawings

Accompanying drawing is the structural representation of the utility model.

In the figure: 1. Gas inlet, 2. Installation fixing hole, 3. Valve seat of gas flow hole, 4. Flow regulating solenoid valve, 5. Gas compensation metering hole, 6. Main gas metering hole, 7. Gas outlet, 8. Body, 9, gas opening and closing hole, 10, cut-off solenoid valve, 11, gas inlet valve seat, 12, gas hole.

Detailed ways

As shown in the drawings, the utility model mainly includes a body 8 , a cut-off solenoid valve 10 and a flow regulating solenoid valve 4 . The body 8 is integrally formed by powder metallurgy or die-casting. The body 8 is provided with a gas inlet 1 , a gas inlet valve seat 11 , a gas flow hole valve seat 3 and a gas outlet 7 . Two installation and fixing holes 2 are also provided on the body 1 . A gas hole 12 is arranged in the gas inlet valve seat 11 . The gas flow hole valve seat 3 is provided with a gas compensation metering hole 5 and a gas main metering hole 6 . A cut-off electromagnetic valve 10 is installed on the valve seat 11 of the gas inlet hole, and a flow regulating electromagnetic valve 4 is installed on the valve seat 3 of the gas flow hole. The gas inlet 1 communicates with the valve seat 11 of the gas inlet hole through the gas hole 12, the valve seat 11 of the gas inlet hole communicates with the valve seat 3 of the gas flow hole through the gas opening and closing hole 9, and the valve seat 3 of the flow hole passes through the gas compensation hole 5 It communicates with the gas main metering hole 6 and the gas outlet 7, and the flow hole valve seat 3 is provided with an annular groove that is unimpeded with the gas opening and closing hole, through which the gas main metering hole 6 and the gas opening and closing hole 9 are in a normal state , while the gas main metering hole 6 and the gas outlet 7 are also in a normally open state. The cut-off electromagnetic valve 10 controls the opening and closing of the gas opening and closing hole 9, and controls the gas flow to the gas flow hole valve seat 3. The flow regulating solenoid valve 4 only controls the opening and closing of the gas compensation metering hole 5, and the flow regulating solenoid valve 4 can make the vehicle heater in full load or partial load working state by opening and closing the gas compensation metering hole 5.

The working process of the present utility model is:

Fix the utility model at a suitable position in the car through the installation and fixing hole 2 on the body 1, the gas from the gas supply system is connected to the gas inlet 1 through the gas pipe, and the gas outlet 7 is connected to the gas heater with the gas pipe good. When the vehicle heater is started, its controller controls the cut-off solenoid valve 10 and the flow regulating solenoid valve 4 to open at the same time. At this time, the gas passes through the gas inlet 1 through the gas hole 12, the gas opening and closing hole 9, the gas main metering hole 6 and the gas compensation The measuring hole 5 supplies gas to the vehicle heater through the gas outlet 7 . After the vehicle heater reaches the heating temperature, the controller controls the flow regulating solenoid valve 4 to close the gas compensation metering hole 5, and now only the gas main metering hole 6 supplies gas to the heater. Because the total flow of gas is reduced, the heater supplies heat with part of the heat load. When the temperature of the heated body drops to the set temperature, the controller controls the flow regulating solenoid valve 4 to open. At this time, the gas compensation metering hole 5 and the gas main metering hole 6 supply gas to the heater together, and the gas heater supplies gas at full load. Heat, the above work process goes round and round. When the vehicle heater shuts down, its controller closes the flow regulating solenoid valve 4 and the gas cut-off solenoid valve 10 simultaneously, cuts off the gas source of the gas heater, and the heater stops working.

Claims (1)

1. an automobile-used heater ends and flow valve with combustion gas, comprises body, cut-off electromagnetic valve and Flow-rate adjustment magnetic valve, it is characterized in that: body is provided with fuel gas inlet, combustion gas air admission hole valve seat, combustion gas keying hole, gas flow ports valve seat and gas outlet; Be provided with fuel gas hole in the combustion gas air admission hole valve seat, be provided with combustion gas compensating jet and combustion gas main jet in the gas flow ports valve seat; Fuel gas inlet communicates with combustion gas air admission hole valve seat by fuel gas hole, combustion gas air admission hole valve seat opens and closes the hole by combustion gas and communicates with gas flow ports valve seat, gas flow ports valve seat communicates with gas outlet by combustion gas compensating jet and combustion gas main jet, and combustion gas main jet and combustion gas open and close the hole and gas outlet is in normal open state; On the combustion gas air admission hole valve seat cut-off electromagnetic valve is installed, on the gas flow ports valve seat Flow-rate adjustment magnetic valve is installed.

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