CN214145609U - Temperature-sensing thermostat device for integrated bypass valve in engine oil filter module - Google Patents
Temperature-sensing thermostat device for integrated bypass valve in engine oil filter module Download PDFInfo
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- CN214145609U CN214145609U CN202023292926.2U CN202023292926U CN214145609U CN 214145609 U CN214145609 U CN 214145609U CN 202023292926 U CN202023292926 U CN 202023292926U CN 214145609 U CN214145609 U CN 214145609U
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- bypass valve
- sensing element
- oil
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Abstract
The utility model relates to a temperature sensing formula thermostat device that is arranged in machine oil filter module integrated bypass valve, including casing, temperature-sensing element assembly and scalable locating part, temperature-sensing element assembly installs in the cavity of casing, and by scalable locating part spacing, the casing is equipped with oil feed entry and filter core entry respectively; the temperature sensing element assembly comprises a piston, a temperature sensing element and a bypass valve assembly, the piston is slidably mounted in the shell cavity, the temperature sensing element is mounted at one end of the piston, and the piston opens or closes the oil inlet under the limiting action of the temperature sensing element and the telescopic limiting piece; the bypass valve assembly is mounted on the piston and used for closing or opening the bypass through hole in the middle of the piston. The utility model discloses support has been got rid of to integrated thermostat device, saves space, has increased the bypass valve sectional area and has reduced the flow resistance.
Description
Technical Field
The utility model relates to an automobile engine cooling technical field, concretely relates to temperature sensing formula thermostat device that is arranged in machine oil to strain module integrated bypass valve.
Background
Patent CN211422724U has introduced an integrated thermostat device of temperature sensing formula for in engine oil module, it forms integratively through the supporting structure, realize that thermostat temperature sensing element assembly and bypass valve assembly are integrated together, can directly pass through the screw thread on the support, rotatory installation and dismantlement, it is not enough to have improved traditional temperature sensing formula thermostat, the installation technology has been optimized, but the device structure is comparatively complicated, the support is with high costs, the bypass valve assembly passes through the bypass valve seat and links together with the piston coupling, bypass valve block space is restricted in the bypass valve seat, lead to the cross-sectional area undersize of circulation to make the engine oil resistance too high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem and providing a temperature sensing formula thermostat device that is arranged in the machine oil filter module integrated bypass valve.
The purpose of the utility model is realized through the following technical scheme:
a temperature-sensing thermostat device for an integrated bypass valve in an oil filter module comprises a shell, a temperature-sensing element assembly and a telescopic limiting piece, wherein the temperature-sensing element assembly is installed in a cavity of the shell and is limited by the telescopic limiting piece installed at one end of the cavity of the shell, and the shell is respectively provided with an oil inlet and a filter element inlet; the temperature sensing element assembly comprises a piston, a temperature sensing element and a bypass valve assembly, the piston is slidably mounted in the shell cavity, the temperature sensing element is mounted at one end of the piston, and the piston opens or closes the oil inlet under the limiting action of the temperature sensing element and the telescopic limiting piece; the bypass valve assembly is mounted on the piston and used for closing or opening the bypass through hole in the middle of the piston.
Further, the piston will cavity in the casing is split into oil inlet cavity and the cavity that produces oil, scalable locating part is located in the oil-producing cavity.
Furthermore, the temperature sensing element is in a screw rod shape and is axially arranged in the middle of the piston, a slender ejector rod is arranged at the end part of the temperature sensing element, which is positioned in the oil inlet cavity, and the ejector rod is arranged on the inner wall of one end of the oil inlet cavity.
Furthermore, the ejector rod is made of high-temperature expansion materials, when the temperature is too high, the temperature sensing element expands, and the piston moves under the action of the ejector rod.
Furthermore, the bypass valve component is installed at the other end of the temperature sensing element corresponding to the ejector rod and comprises a bypass valve plate and a bypass valve spring, the bypass valve plate is sleeved on the temperature sensing element and limited by the bypass valve spring, the other end of the bypass valve spring is limited by a baffle plate arranged at the end part of the temperature sensing element, and the bypass valve spring is in a compressed state.
Furthermore, the piston is in a housing shape, one end of the piston is in a conical shape, a bypass through hole is formed in the middle of the piston, and under the normal working condition, the bypass valve plate is tightly pressed on the piston under the action of the bypass valve spring to seal the bypass through hole.
Further, the baffle plate is riveted with the piston through a flanging.
Further, the oil inlet is arranged in the oil inlet chamber, and the filter element inlet is arranged in the oil outlet chamber.
Furthermore, the telescopic limiting part is a limiting spring, the limiting spring is in a compressed state, one end of the limiting spring is limited by the inner wall of the shell cavity, the other end of the limiting spring is limited by the temperature sensing element assembly, and the temperature sensing element assembly is provided with thrust.
Further, the housing is cylindrical, and a sliding surface for guiding the piston is provided on an inner wall of the housing.
The utility model discloses the concrete theory of operation of device does:
in a normal state, the piston is in an open state, namely when the temperature of the engine oil introduced through the oil inlet is lower than a set value, the piston does not seal the engine oil flow port under the action of the telescopic limiting piece, and the engine oil entering the cavity of the shell can be introduced into the filter element through the filter element inlet; part of the oil can enter the cooler, and the flow of the oil entering the filter element inlet and the cooler depends on the flow of the oil from the oil inlet.
When high-temperature engine oil is introduced into the oil inlet (when the temperature of the engine oil is higher than a set value), the temperature sensing element expands due to temperature rise to push the piston to move, the piston seals the oil inlet, at the moment, the high-temperature engine oil cannot enter the oil outlet cavity from the oil inlet cavity, namely, the high-temperature engine oil needs to enter the inlet of the cooler, the engine oil reaches each lubricating point after being cooled to a certain temperature by the cooler, the lubricating effect of the lubricating points is ensured, and the service life of the engine oil is prolonged.
When high-temperature engine oil is introduced into the oil inlet chamber, the piston seals the oil flow port of the engine oil, the inlet of the filter element is in a closed state, and if the engine oil does not enter the filter element at the moment, the engine oil can not be used if the engine oil does not enter the filter element under certain limit working conditions, such as the fault (such as blockage) of a cooler branch circuit, and the situation is avoided. The bypass valve assembly in the device plays a role, namely if the situation occurs, when the pressure difference between the oil inlet and the lubricating end rises to the set starting pressure, high-pressure engine oil in the oil inlet chamber acts on the bypass valve plate, the bypass valve plate moves, the bypass through hole in the piston is opened, the engine oil passes through and enters the inlet of the filter element, and therefore the problems are avoided, the engine oil is kept in the engine lubricating system, and all parts needing to be lubricated in the operation of the engine are protected.
Compared with the prior art, the utility model has the advantages of it is following:
1. the integrated thermostat device of temperature sensing formula that is arranged in the machine oil module that discloses with patent CN211422724U adopts integral type supporting structure to compare, the utility model discloses the support has been got rid of to integrated thermostat device, saves space, has increased the bypass valve sectional area and has reduced the flow resistance.
2. The bypass valve assembly that is arranged in the integrated thermostat device of temperature sensing formula in the machine oil module that discloses with patent CN211422724U includes that bypass valve block, bypass disk seat, bypass valve spring link together through the piston coupling with the temperature-sensing element assembly technical scheme compare, the utility model discloses integrated thermostat device bypass disk seat changes the separation blade into and rivets with temperature-sensing element lower extreme turn-ups, and the separation blade structure is more simple, reduce cost.
Drawings
FIG. 1 is a schematic structural view of a temperature sensing element assembly and a retractable positioning member of the present invention;
FIG. 2 is a schematic view of the device according to the present invention showing the piston in an open state;
FIG. 3 is a schematic view of the device according to the present invention showing the closed state of the piston;
FIG. 4 is a schematic view of the device of the present invention showing the bypass valve in an open state;
fig. 5 is a schematic diagram of the working principle.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-4, a temperature-sensing thermostat device for an integrated bypass valve in an oil filter module includes a housing 1, a temperature-sensing element assembly and a retractable limiting member, wherein the temperature-sensing element assembly is installed in a cavity of the housing 1 and is limited by the retractable limiting member installed at one end of the cavity of the housing 1. The telescopic limiting part is a limiting spring 4, the limiting spring 4 is in a compressed state, one end of the limiting spring is limited by the inner wall of the cavity of the shell 1, the other end of the limiting spring is limited by the temperature sensing element assembly, and the limiting spring has thrust on the temperature sensing element assembly.
The temperature sensing element assembly comprises a piston 2, a temperature sensing element 3 and a bypass valve assembly, the piston 2 is slidably arranged in a cavity of the shell 1, the temperature sensing element 3 is arranged at one end of the piston 2, and the piston 2 opens or closes the oil inlet 8 under the limiting action of the temperature sensing element 3 and the telescopic limiting piece; the middle of the piston 2 is provided with a bypass through hole, and the bypass valve assembly is arranged on the piston 2 and used for closing or opening the bypass through hole in the middle of the piston 2. The utility model discloses support has been got rid of to integrated thermostat device, saves space, and the increase bypass valve sectional area has reduced the flow resistance.
Specifically, piston 2 is split into oil feed cavity and the cavity that produces oil with the cavity in the casing 1, and scalable locating piece is located the cavity that produces oil indoor, and casing 1 is equipped with oil feed entry 8 and filter core entry 9 respectively, and the oil feed cavity is located to oil feed entry 8, and the cavity that produces oil is located to filter core entry 9.
The temperature sensing element 3 is in a screw rod shape and is axially arranged in the middle of the piston 2, a slender ejector rod 301 is arranged at the end part of the temperature sensing element 3, which is positioned in the oil inlet cavity, and the ejector rod 301 is arranged on the inner wall of one end of the oil inlet cavity. When the temperature is too high, the temperature sensing element 3 expands and the piston 2 moves under the action of the mandril 301.
The housing 1 is cylindrical, and a sliding surface for guiding the piston 2 is provided on the inner wall. The bypass valve component is arranged at the other end of the temperature sensing element 3 corresponding to the ejector rod 301 and comprises a bypass valve plate 5 and a bypass valve spring 6, the bypass valve plate 5 is sleeved on the temperature sensing element 3 and limited by the bypass valve spring 6, the other end of the bypass valve spring 6 is limited by a baffle 7 arranged at the end part of the temperature sensing element 3, and the bypass valve spring 6 is in a compressed state. The piston 2 is in a housing shape, one end of the piston is in a conical shape, a bypass through hole is formed in the middle of the piston, under normal working conditions, the bypass valve plate 5 is tightly pressed on the piston 2 under the action of the bypass valve spring 6 to seal the bypass through hole, the blocking piece 7 is riveted with the piston 2 through a flanging, the bypass valve seat is changed into the blocking piece 7 which is riveted with the flanging at the lower end of the temperature sensing element, the structure of the blocking piece 7 is simpler, and the cost is reduced.
The utility model discloses the concrete theory of operation of device does:
as shown in fig. 2, in a normal state, when the piston 2 is in an open state, that is, when the temperature of the engine oil introduced through the oil inlet 8 is lower than a set value, the piston 2 does not close the oil passage under the action of the retractable limiting member, and the engine oil entering the cavity of the housing 1 can be introduced into the filter element through the filter element inlet 9; part of the oil can enter the cooler and the flow of oil into the filter element inlet 9 and the cooler depends on the flow of oil from the oil inlet 8.
As shown in fig. 3, when high-temperature engine oil is introduced into the oil inlet 8 (when the temperature of the engine oil is higher than a set value), the temperature sensing element 3 expands due to temperature rise, the piston 2 is pushed to move under the action of the ejector rod 301, the piston 2 seals the oil inlet 8, at this time, the high-temperature engine oil cannot enter the oil outlet chamber from the oil inlet chamber, namely, the high-temperature engine oil is prevented from entering the filter element through the filter element inlet 9, the lubricating effect of a lubricating point is ensured, and the service life of the engine oil is prolonged.
Referring to fig. 4, when the high temperature engine oil is introduced into the oil inlet chamber, the piston 2 closes the oil flow port, and the filter element inlet 9 is closed, if under some limit conditions, such as a cooler bypass is failed (e.g., blocked), no engine oil is available if no engine oil enters the filter element, which should be avoided. The bypass valve assembly in the device plays a role, namely if the situation occurs once, when the pressure difference between the oil inlet 8 and the lubricating end rises to the set opening pressure, high-pressure engine oil in the oil inlet chamber acts on the bypass valve plate 5, the bypass valve plate 5 moves, the bypass through hole in the piston 2 is opened, and the engine oil passes through and enters the filter element inlet 9, so that the problems are avoided, the engine oil is kept in the engine lubricating system, and all parts needing to be lubricated in the operation of the engine are protected.
Fig. 5 is the theory of operation schematic diagram in this device concrete application in automobile engine module, promptly the machine oil in the oil tank respectively through the cooler and the utility model discloses the device lets in the filter core and filters, lets in the engine after filtering and uses, and the machine oil after the use returns to in the oil tank, so circulate, the utility model discloses set up the temperature regulation and the pressure adjustment of temperature-sensing formula integrated thermostat device for realizing machine oil. The utility model discloses not only can realize synchronous temperature regulation and pressure regulation function, and need not to consider the mounted position of temperature-sensing element assembly and bypass valve assembly respectively, consequently the shell structure who is used for installing the integrated thermostat device of temperature sensing formula also obtains optimizing, saves design space.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (10)
1. A temperature-sensing thermostat device for an integrated bypass valve in an oil filter module is characterized by comprising a shell, a temperature-sensing element assembly and a telescopic limiting piece, wherein the temperature-sensing element assembly is installed in a cavity of the shell and is limited by the telescopic limiting piece installed at one end of the cavity of the shell, and the shell is respectively provided with an oil inlet and a filter element inlet;
the temperature sensing element assembly comprises a piston, a temperature sensing element and a bypass valve assembly, the piston is slidably mounted in the shell cavity, the temperature sensing element is mounted at one end of the piston, and the piston opens or closes the oil inlet under the limiting action of the temperature sensing element and the telescopic limiting piece;
the bypass valve assembly is mounted on the piston and used for closing or opening the bypass through hole in the middle of the piston.
2. The thermostat device of claim 1 wherein said piston divides a cavity in said housing into an oil inlet chamber and an oil outlet chamber, said retractable stop being located in said oil outlet chamber.
3. A thermostat device for an integrated bypass valve in an oil filter module according to claim 2, characterized in that the temperature-sensitive element is in the shape of a screw mounted axially in the middle of the piston,
the temperature sensing element is positioned at the end part in the oil inlet cavity and is provided with a slender ejector rod, and the ejector rod is arranged on the inner wall of one end of the oil inlet cavity.
4. The thermostat device of claim 3, wherein the plunger is made of a high temperature expansion material, and when the temperature is too high, the temperature sensing element expands and the piston moves under the action of the plunger.
5. The temperature-sensing thermostat device for the integrated bypass valve in the oil filter module according to claim 3, wherein the bypass valve assembly is installed at the other end of the temperature-sensing element corresponding to the ejector rod, and includes a bypass valve plate and a bypass valve spring, the bypass valve plate is sleeved on the temperature-sensing element and is limited by the bypass valve spring, the other end of the bypass valve spring is limited by a baffle piece arranged at the end of the temperature-sensing element, and the bypass valve spring is in a compressed state.
6. The thermostat device of claim 5, wherein the piston is in the shape of a housing, one end of the piston is conical, a bypass through hole is formed in the middle of the piston, and the bypass valve plate is pressed against the piston by the bypass valve spring to close the bypass through hole under normal operation.
7. The thermostat device of claim 5, wherein said flap is riveted to said piston by a crimp.
8. The thermostat device of claim 2, wherein the inlet feed inlet is disposed in the inlet feed chamber and the filter inlet is disposed in the outlet feed chamber.
9. The thermostat device of claim 1, wherein the retractable stop is a stop spring, and the stop spring is in a compressed state, and has one end thereof stopped by the inner wall of the housing cavity and the other end thereof stopped by the temperature-sensing element assembly, and has a pushing force on the temperature-sensing element assembly.
10. The thermostat device of claim 1, wherein the housing is cylindrical and has an inner wall with a sliding surface for guiding the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023292926.2U CN214145609U (en) | 2020-12-30 | 2020-12-30 | Temperature-sensing thermostat device for integrated bypass valve in engine oil filter module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023292926.2U CN214145609U (en) | 2020-12-30 | 2020-12-30 | Temperature-sensing thermostat device for integrated bypass valve in engine oil filter module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214145609U true CN214145609U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023292926.2U Active CN214145609U (en) | 2020-12-30 | 2020-12-30 | Temperature-sensing thermostat device for integrated bypass valve in engine oil filter module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214145609U (en) |
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2020
- 2020-12-30 CN CN202023292926.2U patent/CN214145609U/en active Active
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