Laval nozzle type heavy-duty truck engine sump oil preheating device
By adopting a Laval nozzle oil preheating device in heavy-duty vehicle engines, using fuel heaters and heat-resistant pipes, combined with the Laval nozzle principle, the airflow speed is improved, and the problem of long preheating time for heavy-duty vehicle engine lubricant in winter in northern China is solved, achieving more efficient preheating effects and environmental protection goals.
Patent Information
- Application Number
- CN202421604521.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The preheating of lubricant oil for heavy-duty automobile engines in the north in winter is too long, polluting the environment, and small heat utilization, which increases cost consumption and affects the production and operation of the vehicle.
The oil preheating device of the bottom shell of the Raval nozzle heavy-duty vehicle engine is adopted, and the fuel heater is used as a heat source. Through the heat-resistant expansion tube, the heat-resistant shrinkage bending tube and the heat-resistant connecting tube, the Raval nozzle principle is combined to improve the airflow speed and optimize the preheating effect.
The preheating time of mining vehicles in winter in the north has been shortened, the preheating effect has been optimized, and the purpose of energy conservation and environmental protection, cost reduction and efficiency improvement has been achieved.
Smart Images
Figure CN222731608U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of heavy-duty vehicle engines, and in particular relates to a heavy-duty vehicle engine sump oil preheating device. Background Art
[0002] Heavy-duty dump trucks for mining produced by Northern Metallurgy have been using charcoal grilling to preheat the oil in the engine oil pan of the vehicle due to the cold winter. This method reduces the oil viscosity and improves the oil fluidity, thereby reducing the engine starting resistance and facilitating the engine starting. However, charcoal grilling has many problems, such as fire hazards and environmental pollution. Summary of the invention
[0003] The purpose of the utility model is to solve the existing problems of preheating lubricating oil of heavy-duty truck engines in northern winter, and provide a Laval nozzle type heavy-duty truck engine sump oil preheating device. The device can shorten the engine preheating time of mining trucks in northern winter, optimize the preheating effect, and achieve the purpose of energy saving, environmental protection, cost reduction and efficiency improvement.
[0004] In order to achieve the purpose of the utility model, the technical solutions adopted are as follows:
[0005] A Laval nozzle type heavy-duty vehicle engine sump oil preheating device, comprising a heat-resistant expansion pipe, a heat-resistant shrinkage bending pipe, a heat-resistant connecting pipe, a fuel heater and a bracket;
[0006] The fuel heater is located on the bracket, the air outlet of the fuel heater is connected to one end of a heat-resistant connecting pipe, the other end of the heat-resistant connecting pipe is connected to one end of a heat-resistant shrinkable bent pipe, and the other end of the heat-resistant shrinkable bent pipe is connected to a heat-resistant expansion pipe.
[0007] Furthermore, in the above-mentioned Laval nozzle-type heavy-duty vehicle engine sump oil preheating device, the heat-resistant connecting pipe and the fuel heater air outlet are fixed by a clamp B, and the heat-resistant shrinkable bent pipe and the heat-resistant connecting pipe are fixed by a clamp A.
[0008] Compared with the prior art, the advantages of the present invention are:
[0009] 1. This device selects a fuel heater as the heat source and uses the Laval nozzle principle to increase the air flow velocity and optimize the preheating effect of the oil pan of the mining heavy-duty vehicle engine.
[0010] 2. This device solves the problems of long preheating time of traditional charcoal grilling for heavy-duty vehicles in northern winter, environmental pollution, low heat utilization rate, increased cost consumption and impact on vehicle production and operation conditions. It shortens the preheating time of mining vehicles in winter, optimizes the preheating effect, and achieves energy conservation, environmental protection, cost reduction and efficiency improvement. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 , a schematic structural diagram of the device of the utility model.
[0012] Among them, 1. heat-resistant expansion tube, 2. heat-resistant shrinkage bending tube, 3. clamp A, 4. heat-resistant connecting tube, 5. clamp B, 6. fuel heater, 7. power supply, 8. bracket, 9. engine bottom casing. DETAILED DESCRIPTION
[0013] Example
[0014] A Laval nozzle type heavy-duty vehicle engine sump oil preheating device, comprising a heat-resistant expansion tube 1, a heat-resistant shrinkage bending tube 2, a heat-resistant connecting tube 4, a fuel heater 6 and a bracket 8;
[0015] The fuel heater is located on a bracket, an air outlet of the fuel heater is connected to one end of a heat-resistant connecting pipe, the other end of the heat-resistant connecting pipe is connected to one end of a heat-resistant shrinkable bent pipe, the other end of the heat-resistant shrinkable bent pipe is connected to a heat-resistant expansion pipe, and the heat-resistant connecting pipe is fixed to the air outlet of the fuel heater by a clamp B5, and the heat-resistant shrinkable bent pipe 2 is fixed to the heat-resistant connecting pipe by a clamp A3.
[0016] The method of using the device is as follows: the bracket is installed at the lower part of the fuel heater so that the heat-resistant expansion tube is close to the engine bottom case 9; the fuel heater is then connected to the power supply 7, the heater switch is started, and then the temperature value is adjusted. After the fuel heater heats the gas, the gas flow area is contracted and then suddenly increases after the gas passes through the heat-resistant connecting tube, the heat-resistant shrinkage elbow, and the heat-resistant expansion tube, resulting in a Laval nozzle effect, increasing the flow rate, and improving the preheating efficiency of the heavy-duty mining vehicle engine in winter.
Claims
1. A Laval nozzle type heavy-duty vehicle engine sump oil preheating device, characterized in that: Including heat-resistant expansion tube, heat-resistant shrinkage bending tube, heat-resistant connecting tube, fuel heater and bracket; The fuel heater is located on the bracket, the air outlet of the fuel heater is connected to one end of a heat-resistant connecting pipe, the other end of the heat-resistant connecting pipe is connected to one end of a heat-resistant shrinkable bent pipe, and the other end of the heat-resistant shrinkable bent pipe is connected to a heat-resistant expansion pipe.
2. The Laval nozzle type heavy-duty vehicle engine sump oil preheating device according to claim 1 is characterized in that: The heat-resistant connecting pipe is fixed to the air outlet of the fuel heater through a clamp B, and the heat-resistant shrinkable bent pipe is fixed to the heat-resistant connecting pipe through a clamp A.