Nozzle core cooling device
By wrapping the cooler on the outside of the nozzle core and directly contacting the coolant with the coolant, the problem of the nozzle core burning out in a high-temperature environment is solved, achieving a more effective cooling effect and enhancing high-temperature resistance.
Patent Information
- Application Number
- CN202420331329.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-22
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-02-22
AI Technical Summary
The existing nozzle core is prone to burn out under high temperature environments, and the existing cooling scheme causes poor cooling effect through indirect heat conduction, and cannot effectively avoid burnout.
Design a nozzle core cooling device. By wrapping the cooler outside the nozzle core, a cooling chamber for cooling liquid flowing is set inside the cooler. The coolant is directly in contact with the nozzle core, and the cooling chamber and fixing block are achieved by using the coolant inlet and outlet pipe. Combined to take away the heat from the exhaust pipe.
The cooling efficiency of the nozzle core is significantly improved, and the burnout in high temperature state is avoided, and the high temperature resistance of the nozzle core is enhanced.
Smart Images
Figure CN222141366U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile accessories, and in particular relates to a nozzle core cooling device. Background Art
[0002] A particulate filter, also known as a DPF, is a ceramic filter installed in the engine's exhaust system. It can capture particulate emissions before they enter the atmosphere. After running for a period of time, the particulate filter may be blocked by the engine's exhaust gas.
[0003] If you want to prevent DPF from being blocked, the best way is to "grill" it at high temperature. Under high temperature conditions, the carbon ash in the DPF will be burned. Based on this method, the manufacturer adds a fuel injector to the exhaust pipe, also called the DPM hydrocarbon injection system.
[0004] The fuel injector is installed on the exhaust pipe through a fixing block. The high temperature of the exhaust pipe at 300-400℃ will transfer heat to the entire nozzle. The nozzle core will be easily burned out due to excessive temperature. The existing solution is to set a water channel in the fixing block to cool the entire fixing block. However, due to the indirect heat conduction between the nozzle core and the fixing block, the cooling effect on the nozzle core is not obvious. During use, the nozzle core is still found to be burned out. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a nozzle core cooling device, which adopts a cooler to directly wrap the nozzle core, thereby increasing the cooling efficiency of the nozzle and avoiding the nozzle core from burning out under high temperature conditions of the exhaust pipe.
[0006] The technical solution adopted by the utility model is as follows:
[0007] A nozzle core cooling device includes a joint, a nozzle core is installed below the joint, an electronic connector is provided on one side of the nozzle core, a cooler is wrapped around the outside of the nozzle core, a protrusion is provided at the lower end of the cooler, and a fixing block is provided below the cooler, a groove is provided inside the fixing block for inserting the cooler protrusion.
[0008] Furthermore, a spacer for closing the upper opening of the cooler is provided above the interior of the cooler, a cooling cavity surrounding the nozzle core is provided inside the cooler, and a coolant inlet and outlet pipe for connecting to the interior of the cooling cavity is provided on one side of the cooler.
[0009] Furthermore, openings for the nozzle core to pass through are provided at the center position of the spacer and at the center position of the downward protrusion of the cooler.
[0010] Furthermore, two coolant inlet and outlet pipes are used, one for inlet and one for outlet, and both coolant inlet and outlet pipes are connected to the upper side of the cooling cavity.
[0011] Furthermore, after the protrusion is inserted into the slot, the lower surface of the protrusion is flush with the lower surface of the fixing block, and can contact the exhaust pipe together with the fixing block to take away the heat of the exhaust pipe and reduce the impact on the nozzle core.
[0012] Compared with the prior art, the beneficial effects are as follows: the utility model arranges a cooler wrapping the nozzle core on the outside of the nozzle core, and a cooling chamber for the flow of coolant is arranged inside the cooler. The coolant is in direct contact with the outside of the nozzle core, which has a better cooling effect and avoids burning the nozzle core under high temperature conditions of the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the internal structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the connection structure between the cooler and the spacer of the utility model;
[0016] Figure 4 It is a structural schematic diagram of the utility model spacer.
[0017] In the figure:
[0018] 1-connector, 11-electronic connector, 12-nozzle core, 2-cooler, 21-coolant inlet and outlet pipes, 22-spacer, 23-cooling chamber, 3-fixing block. DETAILED DESCRIPTION
[0019] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0020] As attached Figure 1-4 shown.
[0021] A nozzle core cooling device includes a joint 1, a nozzle core 12 is installed below the joint 1, an electronic connector 11 is provided on one side of the nozzle core 12, a cooler 2 is wrapped around the outside of the nozzle core 12, a protrusion is provided at the lower end of the cooler 2, and a fixing block 3 is provided below the cooler 2, a groove is provided inside the fixing block 3 for inserting the protrusion of the cooler 2, and the lower surface of the protrusion is flush with the lower surface of the fixing block 3.
[0022] Two coolant inlet and outlet pipes 21 are provided on one side of the cooler 2, one in and one out. A spacer sleeve 22 is provided above the interior of the cooler 2. The spacer sleeve 22 is used to close the opening above the cooler 2 to keep the cooler 2 in a sealed state. After the cooler 2 is sealed, a cooling cavity 23 surrounding the nozzle core 12 is provided inside the cooler 2.
[0023] The working principle is as follows: openings for the nozzle core 12 to pass through are provided at the center position of the spacer 22 and the center position of the downward protrusion of the cooler 2, so that the nozzle core 12 can be placed inside the cooler 2, and the coolant circulation inside the cooling cavity 23 is achieved through the coolant inlet and outlet pipe 21, so that the coolant is in direct contact with the nozzle core 12, thereby reducing the temperature of the nozzle core 12.
[0024] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.
Claims
1. A nozzle core cooling device, comprising a connector (1), a nozzle core (12) mounted below the connector (1), and an electronic connector (11) provided on one side of the nozzle core (12), characterized in that: The outside of the nozzle core (12) is wrapped with a cooler (2), a protrusion is provided at the lower end of the cooler (2), and a fixing block (3) is provided below the cooler (2). A slot is provided inside the fixing block (3) for inserting the protrusion of the cooler (2).
2. The nozzle core cooling device according to claim 1, characterized in that: A spacer (22) for closing an opening above the cooler (2) is provided above the interior of the cooler (2), a cooling cavity (23) surrounding the nozzle core (12) is provided inside the cooler (2), and a coolant inlet and outlet pipe (21) for connecting to the interior of the cooling cavity (23) is provided on one side of the cooler (2).
3. The nozzle core cooling device according to claim 2, characterized in that: An opening for the nozzle core (12) to pass through is provided at the center position of the spacer (22) and the center position of the downward protrusion of the cooler (2).
4. The nozzle core cooling device according to claim 2, characterized in that: The cooling liquid inlet and outlet pipes (21) are two, one for inlet and one for outlet, and both cooling liquid inlet and outlet pipes (21) are connected to the upper side of the cooling cavity (23).
5. The nozzle core cooling device according to claim 1, characterized in that: After the protrusion is inserted into the slot, the lower surface of the protrusion is flush with the lower surface of the fixing block (3).