CN114687830A - 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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- CN114687830A CN114687830A CN202011608976.9A CN202011608976A CN114687830A CN 114687830 A CN114687830 A CN 114687830A CN 202011608976 A CN202011608976 A CN 202011608976A CN 114687830 A CN114687830 A CN 114687830A
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- Prior art keywords
- temperature
- piston
- bypass valve
- sensing element
- oil
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- 239000010705 motor oil Substances 0.000 title description 40
- 230000000670 limiting effect Effects 0.000 claims abstract description 29
- 230000009471 action Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 53
- 230000001050 lubricating effect Effects 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/005—Controlling temperature of lubricant
- F01M5/007—Thermostatic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention relates to a temperature-sensing thermostat device for an integrated bypass valve in an oil filter module, which comprises a shell, a temperature-sensing element assembly and a telescopic limiting piece, wherein the temperature-sensing element assembly is arranged in a cavity of the shell and is limited by the telescopic limiting piece; 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 integrated thermostat device of the invention removes a bracket, saves space, increases the sectional area of the bypass valve and reduces flow resistance.
Description
Technical Field
The invention relates to the technical field of cooling of automobile engines, in particular to a temperature-sensing thermostat device for an integrated bypass valve in an oil filter module.
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.
Disclosure of Invention
The present invention is directed to solving the above problems by providing a thermostat assembly for an integrated bypass valve in an oil filter module.
The purpose of the invention is realized by 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 piston is provided with a bypass through hole in the middle, and the bypass valve assembly is arranged 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 assembly 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 compression 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 specific working principle of the device is as follows:
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 rate of the oil entering the filter element inlet and the cooler depends on the flow rate 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 invention has the following advantages:
1. compared with the integrated bracket structure adopted by the temperature-sensing integrated thermostat device for the engine oil module disclosed in the patent CN211422724U, the integrated thermostat device provided by the invention has the advantages that the bracket is removed, the space is saved, the cross section of the bypass valve is increased, and the flow resistance is reduced.
2. Compared with the technical scheme that the bypass valve assembly of the temperature-sensing integrated thermostat device for the engine oil module disclosed by the patent CN211422724U comprises a bypass valve plate, a bypass valve seat, a bypass valve spring and a temperature sensing element assembly which are coupled and connected together through a piston, the integrated thermostat device provided by the invention has the advantages that the bypass valve seat is changed into a blocking piece which is riveted with a flanging at the lower end of the temperature sensing element, the structure of the blocking piece is simpler, and the cost is reduced.
Drawings
FIG. 1 is a schematic view of a temperature sensing element assembly and a retractable position limiter of the present invention;
FIG. 2 is a schematic view of the piston of the apparatus of the present invention in an open state;
FIG. 3 is a schematic view of the piston of the apparatus of the present invention in a closed state;
FIG. 4 is a schematic view of the device of the present invention with the bypass valve open;
fig. 5 is a schematic diagram of the working principle.
Detailed Description
The invention is described in detail below with reference to the figures 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 integrated thermostat device of the invention removes a bracket, saves space, increases the sectional area of the bypass valve and reduces 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 specific working principle of the device is as follows:
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 a schematic view of the working principle of the device specifically applied to an automobile engine module, namely that engine oil in an oil tank is respectively filtered by a cooler and the filter element of the device, the filtered engine oil is introduced into an engine for use, the used engine oil returns to the oil tank, and the circulation is repeated in such a way, and the temperature-sensitive integrated thermostat device is arranged to realize temperature regulation and pressure regulation of the engine oil. The invention can realize the functions of synchronous temperature regulation and pressure regulation, and does not need to consider the installation positions of the temperature sensing element assembly and the bypass valve assembly respectively, so the shell structure for installing the temperature sensing type integrated thermostat device is optimized, and the design space is saved.
The embodiments described above are described to facilitate an 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 based on 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 |
|---|---|---|---|
| CN202011608976.9A CN114687830A (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 |
|---|---|---|---|
| CN202011608976.9A CN114687830A (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 |
|---|---|
| CN114687830A true CN114687830A (en) | 2022-07-01 |
Family
ID=82132838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011608976.9A Pending CN114687830A (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) | CN114687830A (en) |
-
2020
- 2020-12-30 CN CN202011608976.9A patent/CN114687830A/en active Pending
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