A valve used to control heating circuits in motor vehicles.

Abstract

The present invention relates to a valve used to control heating circuits in motor vehicles; it comprises an inlet fitting (1) and an outlet fitting (2) which can be fixed together and contain an inner valve (3); the said inner valve (3) contains a plug (4) which determines the opening of the valve (3) according to a predetermined opening pressure via an adjustable spring (5). It consists of a plug (4) which determines via (5); this invention is characterized by the inclusion of a support element (6) structured to support the spring (5); said support element (6) has positioning means that allow the spring (5) to be adjusted at a predetermined distance on the inner wall of the inlet fitting (1) in order to adjust the spring (5) in the mounting position and to regulate the opening pressure accordingly.

Description

- 1 - TARIFF USED ​​TO CONTROL HEATING CIRCUITS IN MOTOR VEHICLES VALVE A valve that controls the heating circuits in motor vehicles. 5 Technical Area This invention is relevant to regulation and control systems used in heating systems, particularly in: It relates to an industry concerning those used in motor vehicles equipped with electrical accessories. 10 Background of the Invention Regulation and control components used in heating systems in motor vehicles, in particular As in hybrid vehicles or energy-optimized internal combustion engine vehicles, heating 15 with electrical accessories such as circulation pumps for the circuit and main cooling circuit It is commonly known in equipped vehicles. These vehicles have two independently operating electric pumps in their circuit: one for the main cooling system. one in the circuit, the other in the passenger cabin heating circuit. The main cooling circuit is short-circuited and 20 It consists of a long circuit. In cooling or operating mode, the coolant connects to the main electrical circuit. The flow circulates through a short circuit at a low flow rate, rotating at a low speed by the pump, and the main The access circuit to the radiator is closed with a valve. In this cooling mode, the heating circuit operates at a specific 25-minute interval between the main circuit and the heating circuit. isolated from the engine circuit by a regulator valve that closes when the pressure difference falls below a certain level. As the engine warms up, the main pump speeds up, and then a valve opens, releasing flow to the main radiator. This is ensured when the main pump reaches a certain speed and a sufficiently high temperature is maintained over a long period of time. When this occurs, sufficient pressure is reached to open the regulator valve of the heating circuit, and the heat... Water flows into the same circuit. At this point, the heating circuit pump and electric heater are also 30 It will be closed. Proper thermal balance in the cooling circuit and optimum heating system of the passenger compartment. To ensure its performance, the regulator valve that supplies flow to the heating circuit must be very precise. Opening under pressure is important. 35 Currently, such a low value is possible in a valve design where the spring preload is not adjustable. It is not possible to obtain the opening pressure tolerance because of the critical point in the pressure-flow curve. - 2 - The point is, largely depending on variations in the initial load and running length of the broadcast. It varies significantly from one part to another. A valve without spring preload adjustment. The change in the pressure-flow curve of the group is specified in the conditions necessary for correct operation. This is approximately ten times higher than the required value, meaning it is ±50 mbar instead of ±5 mbar. This is typical in this application. Valves used in this way are known as direct-acting, unregulated valves. The liquid 5 The pressure acts directly on the plug. Among these valves, there are those that are usually operated externally after installation and are more... a movable element via a geared mechanism that is then locked into the desired final position. Solutions known to be adjusted by changing the length of the broadcast preload using 10 there are. The adjustment process involves the differential in the valve when air is passed through the valve at a specific inlet pressure. by simultaneously or directly measuring the pressure or the spring force at a specific compression level. indirectly 15 by acting on the plug through a probe fitted with a force sensor. This is accomplished by measuring it. While the screw adjustment system is functionally efficient and precise, it is often too tight. The costs are significant due to the existence of gear elements that need to be machined from metal within certain tolerances. It increases significantly. 20 Given the stated disadvantages of existing solutions, providing a sensitive valve. However, it has a simpler calibration and is therefore cheaper to produce compared to existing models. It is clear that a solution is needed. Description of the Invention To achieve this goal and to resolve the technical issues discussed so far, and then to present what will emerge later. To provide additional advantages, this invention controls heating circuits in motor vehicles. It relates to a valve; this valve is a 30 that can be fastened together and contains an internal valve. It consists of an inlet fitting and an outlet fitting. This internal valve... The valve opens at a predetermined pressure via an adjustable spring. It contains a stopper that determines when it opens. The valve consists of a support element structured to support the spring; the 35 in question The support element adjusts the spring to its mounting position and the opening pressure accordingly. to arrange at a predetermined distance on the inner wall of the inlet fitting It has positioning tools that allow for adjustment. - 3 - This regulation affects the preload of the broadcast and the elastic constant of the broadcast in question. This is done taking into account the dimensions of the plug element. This is done considering the opening. It is done. Due to the wide variation in the behavior of the springs used, especially their operating lengths Depending on the variation in their initial loads, adjustment should be made as described. This while enabling the components to be easily produced at an industrial level, the valve opening adjustment It reduces costs while maintaining sensitivity. According to another feature of the invention, the positioning device of the support element is the ring in question. a ring containing a harpoon-like protrusion evenly distributed across its surface It consists of an outer surface; this is the mounting of the support element inside the input connection piece. It ensures that it is fixed in place. Given its harpoon-like configuration and strength, The positioning device is preferably made of metal, and the support device is undesirable. It provides the necessary anchoring to prevent movement and according to the requirements of the heating circuit. It allows for precise adjustment. According to another feature of the invention, the positioning mechanism of the support element is external. It is in the shape of a ring with the aforementioned harpoon-shaped protrusion on its surface, and this the ring is attached to the main body of the support element, preferably the main one opposite the insertion end. It can be fixed to the first fixing end of the body. In other words, the main part of the ring and support element. The body consists of separate elements. 25 Given this configuration, the positioning ring ensures grip and prevents wear. While it is made of a durable material that provides resistance, the support element reduces costs. It can be made of plastic. Ideally, to secure it to the main body, the ring should be evenly distributed on its inner surface and on the main It includes a harpoon-shaped protrusion that makes contact with the body. Thanks to this configuration, the main ring can be attached without the need for adhesives or welding elements. It can be easily attached to the body. 35 Another feature of the invention is that the support element allows fluid to pass through when the internal valve is opened. It must have at least one hole structured in such a way that it can be released by the spring; - 4 - The applied force is overcome, thus dislodging the plug. Ideally, the support element should have a cross-sectional rotational geometry with at least three vertes. It has; the first stage provides a stroke end support for the plug, and the second stage provides fixation for the spring. It defines the point. These vertebrae provide rigidity to the main body of the support element, 5 This ensures it stays in the center and reduces the amount of material required for its configuration. According to another feature of the invention, the support element has a spring between its outer surface and the second stage. It contains an inner cylinder that supports and protrudes inwards, and this inner cylinder supports the plug body. It includes a space structured to redirect; thus causing an unwanted space. 10 It prevents possible radial movement of valve components. To facilitate the attachment of the support element to the inlet connection piece, the invention includes a valve. The support element of the object is located at the end opposite the first fixing end, i.e., the input connection. It is designed to include a chamfer at the mounting end of the support element attached to the part. 15 Finally, according to another feature of the invention, the inlet connector fits into the inlet where the plug sits. in the hole, a projection with the same cross-section as the plug, to support the plug in order to close the valve. includes. Brief Description of the Figures Figure 1 shows the exploded view of the valve object of the invention. Figure 2 shows the main body of the support element, including the positioning mechanism and plug, 25 It shows a disassembled appearance. Figure 3 shows a schematic cross-sectional view of the valve object, which is the subject of the invention. Figure 4 shows a cross-sectional view of the support element's positioning mechanism. 30 It shows. Preferred Application of the Invention This invention is suitable for use in motor vehicles, preferably hybrid vehicles or energy-optimized internal combustion engines. It relates to a valve used to control heating circuits in motor vehicles. As shown in Figures 1 and 3, the valve controlling the heating circuits is connected via a watertight fitting. - 5 - It includes an inlet connector (1) and an outlet connector (2) fixed together. As shown in Figure 2, the input connector (1) and output connector (2) in question. It contains an internal flow regulator valve (3). This internal valve (3) is controlled by a spring (5). a plug (4) that opens the internal valve (3) in response to a set predetermined opening pressure 5 It contains. When the plug (4) is opened, the liquid will allow the liquid to pass through when the inner valve (3) is opened. through the holes (6.2) on the structured support element (6) from the inlet connection piece (1) It flows to the outlet fitting (2). As can be seen in Figure 3, the inlet fitting (1) has an inlet hole (1.1) for the passage of the liquid. It includes; where the support base of the plug (4) sits on the plug (4) and the cross-section of the plug (4) It includes a projection (1.2) that matches the cross-section; thus, the adjustment of the spring (5) of the support element (6) It allows for more movement. The spring (5) is mounted on the support element (6); this element holds the spring (5) in the mounting position 15 To adjust and regulate the opening pressure accordingly, the inside of the inlet fitting (1) allowing it to make contact with the internal valve (3) on its wall at a predetermined distance It has positioning tools. The said regulation is applied by affecting the preload of the spring (5) and the elastic constant of the said spring is 20 The arrangement is made taking into account the dimensions of the plug (4). The valve inlet connection piece (1) the valve which changes depending on the position and adjustment of the support element (6) inside it The opening pressure is determined taking into account the threshold value. Due to the wide variation in the behavior of the springs used, especially for working lengths of 25 Depending on the variation in their initial loads, adjustment should be made as described. To position the support element (6), positioning tools should preferably be used on the inner valve (3) fixed to the main body (6.1) of the support element (6) at the end opposite the insertion end It is in the shape of a ring (7) (figure 2). 30 As shown in Figure 4, which shows the cross-section of the ring (7), on the inner surface of the ring (7), its length There is a harpoon-like projection (7.2) distributed evenly along the support The element (6) contacts the main body (6.1) and fixes it to it. For this purpose, the main body (6.1) includes a seating recess for the said ring (7). 35 Similarly, the ring (7) has a harpoon-shaped pattern evenly distributed along its outer surface. It has a protrusion (7.1); through this protrusion the internal valve (3) is in the predefined setting position. - 6 - It is fixed to the inlet connector (1). Preferably, the support element (6) is positioned along the radial axes of the inner valve (3) during operation. a cross-section with at least three, preferably six ribs (6.3) to prevent it from moving It has; these spines (6.3) form holes (6.2) for the passage of fluid. These 5 There is also an inward bevel (6.5) at the ends of the spines (6.3); this makes the inlet of the internal valve (3) This makes it easy to place it in the connecting piece (1). To assemble the elements that make up the inner valve (3), the main body of the support element (6) (6.1), a first step (6.3.1) defining the end-of-stroke support for the plug (4) and 10 for the spring (5) It has a second step (6.3.2) that defines the fixing point. In addition, the support element (6) includes an inner cylinder (6.4) extending inwards; this inner cylinder (6.4) is outside It provides support for the spring (5) between the surface and the second step (6.3.2) and this inner cylinder (6.4), It contains an internal cavity structured to orient the body (4) of the plug (4.1). 15 Therefore, during manufacturing, the position of the support element (6) is determined by the connection of the ring (7). By aligning, you can secure the valve and thus adjust the spring (5) before closing the valve or In some cases, by disconnecting the outlet connector (2) and adjusting the position of the support element (6) The valve can be removed by adjusting it. 20 30 35

Claims

- 7 - REQUESTS 1. A valve used to control heating circuits in motor vehicles, which can be fixed together. and an inlet fitting (1) containing an internal valve (3) and an outlet fitting. (2); the internal valve (3) in question is opened at a predetermined opening by means of an adjustable spring (5). to a plug (4) that determines the opening of the valve (3) depending on the pressure; this valve, spring (5) to support a structured support element (6); the said support element (6), To adjust the spring (5) in the mounting position and to regulate the opening pressure accordingly, inlet It allows the connection piece (1) to be adjusted at a predetermined distance on the inner wall. It has positioning tools that recognize it. 10 2. According to the previous request, there is a valve where the support element (6) is positioned. the devices, a harpoon-shaped protrusion evenly distributed along the circular surface in question. (7.1) includes a circular outer surface, and this protrusion is the mounting of the support element (6). It ensures that it is fixed in position. 15 3. According to the previous request, there is a valve and here, the positioning tools of the support element (6), having a harpoon-shaped protrusion (7.1) on its outer surface and the main support element (6) It is in the form of a ring (7) that can be fixed to the fixing end of its body (6.1).

4. According to the previous request, there is a valve where the ring (7) is attached to the main body (6.1) inside. It includes a harpoon-shaped protrusion (7.2) placed at equal intervals along its surface.

5. According to previous requirements, there is a valve and here the support element (6) is when the inner valve (3) is opened. It contains at least one hole (6.2) structured to allow fluid to pass through. 25 6. According to the previous requirement, there is a valve where the support element (6) has at least three spines (6.3). to a cross-shaped cross-section; these spines define the end-stroke support for the plug (4) a first a second step (6.3.2) defining the fixing support for step (6.3.1) and spring (5) It has vertebrae (6.3) and defines the hole (6.2) for the passage of fluid. 30 7. According to the previous request, it is a valve and here the support element (6) is an inner protruding inward. to support the pedestrian (5) between the cylinder (6.4); outer surface and the second step (6.3.2) inside having a cylinder (6.4) and the inner cylinder (6.4) in question directs the body (4.1) of the plug (4). It includes an internal cavity structured in such a way. 35 8.

8. A valve according to either of claims 5 and 6, where support element (6), fixing It contains a chamfer (6.5) at the opposite end of the end.

9. According to any of the previous requirements, the valve is here with the inlet fitting (1), fluid 40 - 8 - In order to close the valve and support the plug (4) in the inlet hole (1.1), the cross-section of the plug (4) It includes a projection (1.2) with a cross-section that fits. 10 20 30 35

Images