TR201920331A2 - A thermostat assembly that reacts only to the temperature of the coolant from the engine outlet - Google Patents

Abstract

The present invention relates to a valve structure that allows the thermostat to react only according to the temperature of the coolant coming from the engine outlet in thermostat assemblies with more than one inlet. More specifically, the present invention relates to a thermostat assembly having a valve structure that prevents the thermo-actuator from sensing the temperature of coolant coming from other inlets (except the coolant coming from the engine outlet). Moreover, the present invention relates to a valve structure comprising at least one diverter element positioned in front of each inlet from any system outlet other than the cooling system.

Description

DESCRIPTION REACTION ACCORDING TO THE TEMPERATURE OF THE COOLANT FROM THE ENGINE OUTLET ONLY A THERMOSTAT DEVICE THAT GIVES Technical Area The present invention is that in thermostat assemblies with more than one input, the thermostat is only powered from the motor output. It is related to a valve structure that allows the incoming refrigerant to react according to its temperature.

More specifically, the present invention relates to the thermo-actuator's other inputs (refrigerant coming from the motor output). a thermostat with a valve structure that prevents it from detecting the temperature of the incoming refrigerant relates to the device.

Moreover, the current invention is that every input from any system output other than the cooling system relates to a valve structure comprising at least one diverter element positioned in front of it.

State of the Art The thermostat assembly in the engine cooling system is adjusted according to the temperature value of the engine cooler. by determining the flow rate between the bypass circuit and the heat exchange circuit They ensure proper cooling of the parts. Bypass circuit and heat exchange circuit change in flow rate between bypass inlet window and radiator inlet window or bypass possible by the change in the opening ratio between the exit window and the radiator exit window is happening. The change in the opening rate is via a thermo-actuator across the thermostat cavity. It is provided by the forward and backward movements of the directed valve structure. forward and backward of the valve structure Its movement is provided by the movement of the piston element of the thermo-actuator.

In conventional inlet-two-outlet thermostat assemblies, the piston element is replaced by the engine output from the inlet. It moves forward or backward according to the temperature of the cooler. Coolant from engine outlet When the temperature value is below the first threshold value, the actuator and therefore the valve structure are completely remains in the closed position. In this fully closed position of the actuator, the valve Its structure allows the refrigerant flow from the inlet to the bypass outlet and through the upper valve element, the upper By closing the valve seat, it prevents the coolant flow from the inlet to the radiator outlet.

The piston moves forward as a result of the increase in the coolant temperature (exceeding the first threshold value). when the other part of the actuator (actuator stem) moves forward of the piston tip. it starts to move backwards due to the restricting piston seat. actuator the backward movement of the stem, the collar seat of the valve structure by the collar portion of the actuator Thanks to the force applied on it, it also causes the valve structure to move backwards.

The temperature value of the cooler coming from the motor output is equal to or above the second threshold value. when the opening value of the actuator and therefore the opening value of the valve structure is maximum points (completely backward movement). In this fully open position of the actuator, the valve Its structure allows the coolant from the inlet to flow towards the radiator outlet and the lower valve element By closing the bottom valve seat, the refrigerant flow from the inlet to the bypass outlet is closed. hinders. At these temperature values above the second threshold, the coolant coming from the motor output heat exchange including engine ducts, radiator ducts, water pump and thermostat assembly continues to flow from the inlet to the radiator outlet throughout the circuit.

However, as a result of design constraints, thermostat assemblies can one or more other inputs (eg from the exhaust recovery (EGR) system) may have. The temperatures of the coolers coming from the other inlets, it is usually relatively cold or hot according to the temperature of the cooler. Moreover, other refrigerants coming from the inlets directly or indirectly with the heat sensitive part of the thermo-actuator. is in contact. As a result of this undesired contact, the heat-sensitive part of the thermo-actuator, the engine cannot detect the temperature value of the refrigerant coming from the outlet. Like this, it becomes impossible to control the valve element according to the temperature of the engine outlet cooler.

This situation causes the inefficiency of the engine cooling system and therefore the inefficiency of the vehicle. is happening. a positioned deflector is mentioned. The deflector in question, activation of the valve on the temperature sensitive element of the cooled liquid flow coming out of the temperature exchanger outlet during It is shaped and structured to prevent directed cross. However, here temperature of the coolers coming from other inputs other than motor output, to the thermo-actuator. There is no mention of a valve structure that prevents its detection.

In the patent document numbered U86585167B2, the hot water flowing into several streams (radially oriented a thermostat comprising a mixing device dividing two flows and an axial flow flowing at the end of a sleeve valve structure. Said deflection occurs in the hollow cylindrical valve element. is taking place. The flowing water is first directed axially and the axial flow is at least part of it is deflected radially, then hits the second axial flow. Like this, The mixing process takes place at a point far from the temperature sensor. But here, the motor output Allows the thermo-actuator to detect the temperatures of the coolers coming from the other inputs. There is no mention of a blocking valve structure.

As a result, the inputs from the other inputs of the thermo-actuator (except the cooler from the motor output) to a thermostat assembly with a valve structure that prevents the refrigerant from detecting its temperature. The need has led to the emergence of the solution, which is the subject of invention.

Purpose and Brief Description of the Invention The object of the invention is that the thermo-actuator comes from other inputs (except the cooler coming from the motor output). A thermostat assembly with a valve structure that prevents the cooler from detecting its temperature is introduced. was to put

It is another object of the invention that in thermostat assemblies with more than one input, the thermostat is only intended for the motor. A valve structure has emerged that allows the refrigerant coming from its outlet to react according to its temperature. was to put

Another object of the invention is that every input from any system output other than the cooling system is to provide a valve structure comprising at least one diverter element positioned in front of it.

- Input from motor output, secondary input from any other system output, or a lower body with more inlets, - a valve structure existing thermostat assembly, - at least one diverter element placed in front of each input from another system output contains.

Said diverter element is any region of the valve structure or the inner surface of the lower body. can be positioned on it.

The deflector element in question moves outward with a small inclination, inward with a small inclination or can be positioned directly vertically.

In a preferred embodiment of the invention, the diverter member is an extension on the upper valve member. is positioned.

In the preferred embodiment of the invention, said valve structure is the secondary input from the EGR output. It includes a deflector element positioned in front of it.

Description of Figures In Figure 1a, a front perspective view of the valve structure of the present invention is given.

A top view of the existing thermostat assembly is given in Figure 1b.

Figure 2 shows the fully closed position of the existing valve structure inside the thermostat body. A perspective view is given.

A front section view of the existing thermostat assembly in the fully closed position in Figure 2b. are given.

Figure 3a shows the fully open position of the existing valve structure inside the thermostat body. A perspective view is given.

A front section view of the existing thermostat assembly in the fully open position in Figure 3b. are given.

Figure 4a shows a front perspective view of the conventional valve structure.

Figure 4b shows a top view of the conventional thermostat assembly.

Figure 5a shows the fully closed position of the conventional valve structure inside the thermostat body. A perspective view is given.

A front section view of the conventional thermostat assembly in the fully closed position in Figure Sb. are given.

Figure 6a shows the fully open position of the conventional valve structure inside the thermostat body. A perspective view is given.

Figure 6b is a front section view of the conventional thermostat assembly in the fully open position. are given.

Reference Numbers . thermostat assembly .one. Thermostat inner cavity 11. Upper body 11.1. piston seat 11.2. upper valve seat 11.3. radiator outlet 12. Lower body 12.1. lower valve seat 12.2. Entrance 12.3. Secondary entry 12.4. Bypass output 12.5. bow seat 13. First spring element 14. Second spring element . valve structure .one. upper valve element .2. Deflector .3. bracelet seat 16. Lower valve element . thermo-actuator 21. Bracelet 22. Piston 23. Heat sensitive reservoir Q1. primary flow Q2. secondary flow Eo. motor output exo. EGR output Detailed Description of the Invention The present invention is based on the other inputs of the thermo-actuator 20 (excluding the refrigerant coming from the motor output (Eo)) a thermostat with a valve structure (15) that prevents it from detecting the temperature of the incoming refrigerant relates to the device (10). In thermostat assemblies with more than one input, the temperature of the thermo-actuator The sensitive reservoir section is the temperature of the engine outlet cooler as well as the temperature of other systems. It is also affected by the temperatures of the coolers coming from its outlets. Valve structure (15) which is the subject of the invention In thermostats having more than one input, the thermostat assembly (10) can only be It becomes possible to react according to the temperature of the cooler coming from the engine output (Eo).

In conventional thermostat assemblies with input(s) from other system output(s) refrigerants coming from the inlets directly or indirectly into the thermo-actuator's heat-sensitive reservoir. comes into contact with someone. Here, the temperatures of the coolers coming from the other inlets are Thermo- the actuator cannot detect the temperature of the motor output cooler. As a result of this that the thermostat assembly provides adequate cooling of the engine and engine parts becomes impossible. This situation affects the efficiency of the engine cooling system and therefore the vehicle. causes a decrease in productivity.

The present invention is used in thermostat assemblies having input(s) from other system output(s). the thermo-actuator (20) only detects the temperature of the refrigerant coming from the motor output (Eo). It allows the engine and engine parts to be cooled properly.

Thermostat assembly of the invention (10) - an upper body with piston seat (1 1.1), upper valve seat (1 1.2), radiator outlet (1 .3) (11th). - lower valve seat (12.1), inlet (12.2) from engine outlet (Eo), any other system secondary input (12.3) from output (eg EGR output), bypass output (12.4), spring seat A lower body (12) with portions (12.5) - the upper seated on the said upper valve seat (11.2) in the fully closed thermostat position diverter positioned on the valve element (15.1) in front of said secondary inlet (12.3) a valve structure (15.2) with sections (15.2), collar seat (15.3), - to the part of the bracelet (21) positioned on the said bracelet seat (15.3), said to the piston (22) positioned inside the piston seat (11.1), the valve in question which has a heat sensitive reservoir (23) positioned in the inner cavity of its structure (15). a thermo-actuator (20), - a bottom that sits on the said bottom valve seat (12.1) in the fully open thermostat position valve element (16), - a first spring element (13) positioned between the valve body (15) and the lower valve element (16), - a second spring element (14) positioned between the lower valve element (16) and the spring seat (12.5) contains the components.

In the embodiment of the invention given in the figures, said secondary inlet (12.3) is exhaust recovery It is the EGR output (Exo) coming from the output of the system. The deflector (15.2) element corresponds to the secondary input (12.3) positioned in the future. In the embodiment of the invention given in the figures, only a deflector Although there are (15.2) elements, any other system in other preferred embodiments of the invention Multiple deflectors (15.2) positioned to correspond to inputs from the output it is possible to be.

A perspective view of the existing valve structure (15) is given in Figure 1a. From the section in question As can be seen, said deflector (15.2) element is placed on said upper valve element (15.1). in the form of a positioned extension. The deflector (15.2) element is here a small outward In other embodiments of the invention, although positioned vertically with the inclination, the deflector It is possible to install the element (15.2) vertically or vertically with a small inclination.

Also, provided that the same function is provided, the deflector (15.2) can be used in any region of the valve structure (15). or on the inner surface of the lower body (12). The valve structure (15) which is the subject of the invention A top view of the existing thermostat assembly (10) containing it is given in Figure 1b. from the figure As can be seen in this configuration, said deflector ( ( axially move the incoming refrigerant by directing the refrigerant coming from the EGR outlet (Exo) to come into contact with the heat sensitive reservoir (23). hinders.

A perspective view showing the fully closed position of the valve assembly 15 is shown in Figure 2a. are given. A front section of the existing thermostat assembly (10) in the fully closed position view is given in Figure 2b. As seen in the figure, secondary input from EGR output (Exo) The cooler (12.3) is connected to the bypass outlet (12.4) and the heater without contacting the heat-sensitive reservoir (23) part. is deflected towards the exit. Engine outlet (Eo) inlet (12.2) cooler heat sensitive reservoir (23) and then the secondary inlet in the lower part of the thermostat inner cavity (10.1). (12.3) merges with the flow of the cooler. In this case, the input from the motor output (Eo) The primary flow (S1) formed by the flow of the cooler (12.2), the secondary inlet (12.3) The secondary flow (82) and the mixed flow formed by the flow are shown. As you can see, it is heat sensitive here. the reservoir (23) is only in contact with the primary flow (51), therefore only the engine It detects the temperature of the outlet (Eo) cooler. Thus, here the thermo-actuator (20), the motor It becomes possible to provide valve control according to the temperature of the cooler. This is the engine It increases the efficiency of the cooling system and therefore the efficiency of the vehicle. From Figure 5b As can be seen, the completely closed thermostat of thermostat assemblies with conventional valve structure position both the primary flow (S1) and the secondary flow (S2) through the heat-sensitive reservoir. passes. This allows the heat sensitive reservoir to detect the actual temperature of the engine coolant. hinders. As a result, the efficiency of the engine cooling system and therefore the vehicle's efficiency drops.

A perspective view showing the fully open position of the valve assembly 15 is shown in Figure 3a. are given. A front section view of the existing thermostat assembly (10) in the fully open position It is given in Figure 3b. As seen in the figure, secondary input (12.3) from EGR output (Exo) The cooler is directed towards the radiator outlet (11.3) without coming into contact with the heat sensitive reservoir (23) is deflected. The inlet (12.2) heat-sensitive reservoir (23) section from the motor outlet (Eo) passes through and then merges with the flow of the secondary inlet (12.3) cooler. Promise The primary flow formed by the flow of the inlet (12.2) cooler from the motor output (Eo) in the figure in question. (S1), secondary flow (82) and mixed flow formed by the flow of the secondary inlet (12.3) refrigerant is shown. As can be seen, here the heat sensitive reservoir (23) is only with the primary flow (81). is in contact, therefore only the temperature of the engine output (Eo) cooler. it detects. Thus, here the thermo-actuator (20) has a valve according to the temperature of the engine coolant. control becomes possible. This increases the efficiency of the engine cooling system and therefore, it increases the efficiency of the vehicle. As seen in Figure 6b, it has a conventional valve structure. both primary flow (S1) and secondary flow in the fully open thermostat position of the thermostat assemblies. The flow (S2) passes through the heat sensitive reservoir. This is the heat sensitive reservoir, the engine cooler It prevents it from detecting the real temperature value. As a result, engine cooling The efficiency of the system and therefore the efficiency of the vehicle decreases.

Claims (1)

REQUIREMENTS A thermostat assembly (10) including an inlet (12.2) from the engine outlet (Eo), a secondary inlet (12.3) from any other system outlet, or a lower body (12) with more inlets, a valve assembly (15) ) and its feature is; - it is characterized by at least one diverter (15.2) placed in front of each input coming from another system output. It is a thermostat assembly (10) according to claim 1, its feature is; It is characterized in that the deflector (15.2) element is positioned on any region of the valve structure (15) or the inner surface of the lower body (12). It is a thermostat assembly (10) according to any of the previous claims, and its feature is; It is characterized by positioning the deflector (15.2) element outward with a small slope, inward with a small slope, or directly perpendicularly. It is a thermostat assembly (10) according to any of the previous claims, and its feature is; It is characterized in that the diverter (15.2) element is an extension positioned on the upper valve element (15.1). It is a thermostat assembly (10) according to any of the previous claims, and its feature is; said valve structure (15) is characterized by containing a deflector (15.2) element positioned in front of the secondary input (12.3) coming from the EGR output (Exo).