Thermostat device of 12V gas engine

Abstract

The utility model relates to a thermostat device of a 12V gas engine, which belongs to the field of gas engines and comprises an upper shell, a lower shell, a large circulating water outlet pipe, a small circulating water outlet pipe and a thermostat component, and the upper shell and the lower shell are butted together and then are connected together through a shell connecting component; the large circulating water outlet pipe is connected with the upper shell through a pipeline connecting assembly, and the small circulating water outlet pipe and the upper shell are integrally formed. The thermostat assembly is installed in a cavity between the upper shell and the lower shell and used for switching water flow between the large circulating water outlet pipe and the small circulating water outlet pipe. A left water inlet and a right water inlet are formed in the cavity of the lower shell, and the left water inlet and the right water inlet are symmetrically arranged. The gas engine has the advantages that the working temperature of the gas engine is optimized, and the combustion efficiency and the power output are improved, so that the performance of the engine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a 12V gas engine thermostat device belongs to gas engine field. BACKGROUND

[0002] The thermostat in the gas engine is a key component, which is used for controlling the temperature in the engine cooling system to ensure that the engine runs within the optimal working temperature range. The design and performance of the thermostat directly affect the combustion efficiency, emission performance and working stability of the engine. China is also increasing research and development investment in the field of gas engines to improve technical level. Some domestic gas engine manufacturers and research institutions are developing new thermostat technology to adapt to different working conditions and improve engine performance.

[0003] Although the thermostat technology in the gas engine is constantly improving, the existing technology still has some drawbacks, mainly including:

[0004] Response lag problem: the working process of the traditional mechanical thermostat is "passive" regulated by the cooling liquid temperature, which has the problem of response lag and cannot achieve accurate temperature control.

[0005] Temperature control is not accurate: the opening of the paraffin thermostat and the cooling liquid temperature are not one-to-one corresponding, which cannot achieve accurate control of the cooling liquid large and small circulation flow distribution.

[0006] Durability and high temperature resistance: the thermostat works in high temperature environment, which has high requirements for the high temperature resistance and durability of the material. The existing thermostat may have performance degradation at high temperature, affecting its stability and service life.

[0007] Cooling liquid loss through the thermostat: the thermostat has a throttling effect on the cooling liquid, which causes the power loss of the internal combustion engine to be ignored, affecting the engine efficiency.

[0008] The influence of thermostat damage on the engine: if the thermostat is damaged, it may cause the cooling water temperature to be out of control, making the engine often work in low temperature state, aggravating the wear of each part, increasing fuel consumption, and reducing the economy and durability of the engine. INVENTION CONTENTS

[0009] In order to overcome the defects of the prior art, the utility model provides a 12V gas engine thermostat device, the technical scheme of the utility model is:

[0010] A 12V gas engine thermostat device, including upper shell, lower shell, large circulating water outlet pipe, small circulating water outlet pipe and thermostat assembly, the upper shell and lower shell are connected together through shell connecting assembly after butting together, the large circulating water outlet pipe is connected together with the upper shell through pipeline connecting assembly, the small circulating water outlet pipe is integrally formed with the upper shell, the thermostat assembly is installed in the cavity between the upper shell and lower shell, and the water flow between the large circulating water outlet pipe and the small circulating water outlet pipe is switched, left water inlet and right water inlet are arranged on the cavity of the lower shell, and the left water inlet is symmetrically arranged with the right water inlet.

[0011] The thermostat assembly includes an outer shell, an inner shell, a fixed shell, a sliding block, a thermal element and a spring, a plurality of strip-shaped holes are arranged on the outer shell along the circumferential direction of the outer shell, one end of the thermal element is fixed through a nut after penetrating out of the outer shell, and the other end of the thermal element is located in the inner part of the outer shell; the inner shell is installed in the inner part of the outer shell and slides, and the strip-shaped holes are opened and closed through the inner shell; the fixed shell connected with the outer shell is also installed in the inner part of the outer shell, the sliding block is arranged in a cross shape as a whole, the sliding block is arranged in a vertical direction, the upper end of the sliding block abuts against the thermal element, and the lower end of the sliding block penetrates through the fixed shell and is in sliding cooperation with the fixed shell; the transverse protrusion of the sliding block is embedded in the inner shell and lifts together with the inner shell; and the spring is sleeved on the periphery of the sliding block, the top end of the spring abuts against the inner shell, and the bottom end of the spring abuts against the fixed shell.

[0012] A large circulating water outlet is also arranged on the cavity of the upper shell, and the large circulating water outlet pipe is butted together with the large circulating water outlet.

[0013] The shell connecting assembly and the pipeline connecting assembly are the same in structure and are both connecting bolts.

[0014] A shell sealing gasket is installed at the butt joint of the upper shell and the lower shell.

[0015] A pipeline sealing gasket is installed at the butt joint of the large circulating water outlet pipe and the upper shell.

[0016] The thermostat assembly is two and is symmetrically arranged in the cavity between the upper shell and the lower shell.

[0017] The advantages of the utility model are:

[0018] The working temperature of the gas engine is optimized, the combustion efficiency and power output are improved, and the engine performance is improved.

[0019] By more precisely controlling the temperature of the engine, it helps to reduce harmful emissions produced by gas engines, in line with environmental requirements.

[0020] Increasing engine efficiency can reduce fuel consumption, thereby saving energy and reducing operating costs.

[0021] Reasonable control of engine operating temperature can reduce component wear and prolong the service life of the engine, and reduce maintenance costs.

[0022] Improving the technical level and competitiveness of enterprises is conducive to the improvement of market position and the differentiation of products. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the axial view of the present utility model.

[0024] Figure 2 is the main sectional view of the present utility model.

[0025] Figure 3 is the axial view of the lower shell of the present utility model.

[0026] Figure 4 is the axial view of the upper shell of the present utility model.

[0027] Figure 5 is the axial view of the thermostat assembly of the present utility model.

[0028] Figure 6 is the view when the thermostat assembly of the present utility model is closed.

[0029] Figure 7 is the view when the thermostat assembly of the present utility model is opened. DETAILED DESCRIPTION

[0030] The advantages and characteristics of the present utility model will be more apparent with the description. However, these embodiments are only exemplary and do not constitute any limitation on the scope of the present utility model. Those skilled in the art should understand that the details and forms of the technical solutions of the present utility model can be modified or replaced without departing from the spirit and scope of the present utility model, and such modifications and replacements all fall within the protection scope of the present utility model.

[0031] Referring to Figures 1 to 7The utility model relates to a kind of 12V gas engine thermostat device, including upper shell 2, lower shell 1, large circulating water outlet pipe 3, small circulating water outlet pipe 13 and thermostat component 8, the upper shell 2 and lower shell 1 butt together and connect together by shell connecting component;Large circulating water outlet pipe 3 is connected together with the upper shell 2 by pipeline connecting component, small circulating water outlet pipe 13 is integrally formed with the upper shell 1;The thermostat component 8 is installed in the cavity between the upper shell 2 and lower shell 1, for the switching of water flow between large circulating water outlet pipe 3 and small circulating water outlet pipe;Left water inlet 9 and right water inlet 10 are provided on the cavity 11 of the lower shell 1, and the left water inlet 9 is symmetrically arranged with the right water inlet 10.

[0032] Based on the above structure setting, it realizes:

[0033] Compact structure: the upper shell and the lower shell butt and connect by shell connecting component, so that the whole thermostat device structure is compact, and easy to install and maintain.

[0034] Integrated design: small circulating water outlet pipe is integrally formed with upper shell, reduces connection point, reduces the risk of leakage, and also simplifies manufacturing process.

[0035] Accurate temperature control: thermostat component is installed in the cavity between upper shell and lower shell, can accurately control the switching of water flow between large circulating water outlet pipe and small circulating water outlet pipe, helps to maintain engine running in the best working temperature range.

[0036] Improve thermal efficiency and energy utilization: by accurately controlling the circulation of coolant, energy consumption can be reduced, thermal efficiency and energy utilization can be improved.

[0037] Fast response speed: compared with traditional wax thermostat, new type thermostat design focuses on improving response speed, can faster adjust coolant flow according to engine temperature change.

[0038] Reduce emissions: by accurately controlling engine operating temperature, it helps to reduce the emission of pollutants.

[0039] Improve engine efficiency and performance: the design and performance of thermostat directly affect the combustion efficiency, emission performance and working stability of engine, and new type thermostat technology helps to improve the overall efficiency and performance of engine.

[0040] The thermostat assembly 8 includes an outer shell 16, an inner shell 17, a fixed shell 18, a sliding block 19, a thermosensitive element 20, and a spring 21. A plurality of strip-shaped holes 15 are provided on the outer shell 16 along the circumferential direction of the outer shell 16. One end of the thermosensitive element 20 is fixed by a nut after passing through the outer shell 16, and the other end of the thermosensitive element 20 is located inside the outer shell 16. The inner shell 17 is installed inside the outer shell 16 and slides. The strip-shaped hole 17 is opened and closed by the inner shell 17. The fixed shell 18 is connected with the outer shell 16. The sliding block 19 is in the shape of a cross and is arranged in the vertical direction. The upper end of the sliding block 19 abuts against the thermosensitive element 20, and the lower end passes through the fixed shell 18 and slides with the fixed shell 18. The lateral protrusion of the sliding block 19 is embedded in the inner shell 17 and rises and falls with the inner shell 17. The spring 21 is sleeved on the periphery of the sliding block 19. The top end of the spring 21 abuts against the inner shell 17, and the bottom end abuts against the fixed shell 18.

[0041] The thermostat assembly 8 has the following advantages:

[0042] Accurate temperature response: The thermosensitive element 20 can respond to temperature changes. The stability and accuracy of the response are ensured by the nut fixation.

[0043] Flexible water flow control: The design of the strip-shaped hole 15 allows the inner shell 17 to control the water flow by opening and closing operation, providing accurate flow control.

[0044] Compact internal structure: The compact layout of the inner shell 17, the fixed shell 18, and the sliding block 19 makes the entire thermostat assembly small in size, facilitating integration into the engine system.

[0045] Reliable sliding fit: The sliding fit design of the sliding block 19 and the fixed shell 18 ensures that the thermostat assembly can respond flexibly to temperature changes and achieve accurate water flow switching.

[0046] Utilization of spring pre-tightening force: The spring 21 provides pre-tightening force, ensuring the tight fit between the sliding block 19 and the inner shell 17 and the fixed shell 18, improving the response speed and accuracy of the thermostat assembly.

[0047] A large circulation water outlet 14 is also provided on the cavity 12 of the upper shell 2. The large circulation water outlet pipe 3 is connected to the large circulation water outlet 14.

[0048] The shell connection assembly 5 and the pipe connection assembly 7 have the same structure, which is a connecting bolt.

[0049] A gasket 6 is installed at the interface between the upper housing 2 and the lower housing 1.

[0050] A gasket 7 is installed at the interface between the large circulation water outlet pipe 3 and the upper housing 2.

[0051] Two thermostat assemblies 8 are symmetrically arranged in the cavity between the upper housing and the lower housing.

[0052] The working principle of the utility model is as follows:

[0053] The working principle of the utility model is based on the dynamic response of the thermostat assembly 8 to control the flow path of the cooling liquid to meet the requirements of the 12V gas engine at different working temperatures. The following is a detailed working principle description:

[0054] Cooling liquid inflow: the cooling liquid of the 12V gas engine flows into the cavity 11 of the lower housing 1 through the left and right outlet pipes, and enters the cavity 11 through the left inlet 9 and the right inlet 10.

[0055] Low temperature state: when the temperature of the cooling liquid is not high, the thermal element 20 in the thermostat assembly 8 has not expanded, so the sliding block 19 will not be pushed.

[0056] The sliding block 19 remains in the initial position, and the inner housing 17 blocks the water flow channel between the inner housing 17 and the outer housing 16.

[0057] The cooling liquid flows through the strip-shaped hole 15 around the outer housing 16 to the small circulation water outlet pipe 13 for small circulation to quickly raise the engine temperature to the working temperature.

[0058] Temperature rise: when the engine temperature rises, the temperature of the cooling liquid also rises, and the thermal element 20 expands under the heat.

[0059] The expansion of the thermal element 20 pushes the sliding block 19, and the upper end of the sliding block 19 abuts against the thermal element 20, and the lower end passes through the fixed shell 18 and slides with the fixed shell 18.

[0060] The transverse protrusion of the sliding block 19 is embedded in the inner housing 17 to push the inner housing 17 to move and block the strip-shaped hole 15.

[0061] High temperature state: the movement of the inner housing 17 simultaneously opens the water flow channel between the inner housing 17 and the outer housing 16, allowing the cooling liquid to flow to the large circulation water outlet 14.

[0062] The cooling liquid flows into the radiator through the large circulation water outlet pipe 3 for cooling, and then circulates again to maintain the engine at the optimal working temperature.

[0063] Through the switching of the small circulation water outlet pipe 13 and the large circulation water outlet 14, the small circulation is performed when the water temperature is low to ensure that the thermal efficiency of the 12V gas engine is fully utilized, and the large circulation is performed when the water temperature is high to send the water flow into the radiator for cooling and ensure the reliable operation of the 12V gas engine.

[0064] The sealing property: the upper shell 2 and the lower shell 1 are provided with the shell sealing gasket 6 at the joint to ensure the sealing property of the joint.

[0065] The large circulation water outlet pipe 3 is provided with the pipe sealing gasket 7 at the joint with the upper shell 2 to prevent the leakage of the cooling liquid.

[0066] Through the design, the thermostat device of the utility model can automatically adjust the flow path of the cooling liquid according to the actual working temperature of the engine, realize the switching of the small circulation and the large circulation, optimize the thermal efficiency and performance of the engine, and ensure the reliable operation of the engine under different working conditions.

[0067] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A 12V gaseous engine thermostat device, characterized in that, The application relates to a water heater, which comprises an upper shell, a lower shell, a large circulating water outlet pipe, a small circulating water outlet pipe and a thermostat assembly, wherein the upper shell and the lower shell are connected together through a shell connecting assembly; the large circulating water outlet pipe is connected to the upper shell through a pipe connecting assembly; the small circulating water outlet pipe is integrally formed with the upper shell; the thermostat assembly is installed in a cavity between the upper shell and the lower shell and is used for switching water flow between the large circulating water outlet pipe and the small circulating water outlet pipe; left and right water inlets are arranged on the cavity of the lower shell and are symmetrically arranged with the right water inlet.

2. A 12V gaseous engine thermostat device according to claim 1, characterized in that, The thermostat assembly comprises an outer shell, an inner shell, a fixing shell, a sliding block, a thermal sensitive element and a spring; a plurality of strip-shaped holes are arranged on the outer shell along the circumferential direction of the outer shell; one end of the thermal sensitive element is fixed through a nut after penetrating out of the outer shell, and the other end of the thermal sensitive element is located in the inner part of the outer shell; the inner shell is slidably installed in the inner part of the outer shell, and the strip-shaped holes are opened and closed through the inner shell; the fixing shell connected with the outer shell is also installed in the inner part of the outer shell; the sliding block is in the shape of a cross and is arranged along the vertical direction; the upper end of the sliding block is arranged on the thermal sensitive element, and the lower end of the sliding block penetrates through the fixing shell and is slidably matched with the fixing shell; the transverse protrusion of the sliding block is embedded in the inner shell and is lifted together with the inner shell; the spring is sleeved on the periphery of the sliding block; the top end of the spring is arranged on the inner shell, and the bottom end of the spring is arranged on the fixing shell.

3. A 12V gaseous engine thermostat device according to claim 2, characterized in that, A large circulating water outlet is arranged on the cavity of the upper shell, and the large circulating water outlet pipe is connected to the large circulating water outlet.

4. A 12V gaseous engine thermostat device according to claim 2 or 3, characterized in that, The shell connecting assembly and the pipe connecting assembly have the same structure and are both connecting bolts.

5. A 12V gaseous engine thermostat device according to claim 4, characterized in that, A shell sealing gasket is arranged at the joint of the upper shell and the lower shell.

6. A 12V gaseous engine thermostat device according to claim 4, characterized in that, A pipe sealing gasket is arranged at the joint of the large circulating water outlet pipe and the upper shell.

7. A 12V gaseous engine thermostat device according to claim 5, characterized in that, The thermostat assembly is two and is symmetrically arranged in the cavity between the upper shell and the lower shell.

Images