Electronic Water Pump Assembly
The electronic water pump is the core of the automobile engine cooling system. Its function is to pressurize the coolant to ensure its circulation in the cooling system, thereby ensuring that high-temperature parts such as the piston, cylinder head, and cylinder block can be cooled in a timely manner to ensure that normal operation of the engine.
At present, in order to realize the small circulation and large circulation of the engine, multiple external pipelines are generally used to connect the electronic water pump with the engine's cylinder, oil cooler, exhaust gas recirculation system and other components. The complex external pipelines are distributed in a disorderly manner, and the structure is not compact enough, resulting in a large space occupied. The excessive number of external pipelines increases the total weight significantly.
For this purpose, an electronic water pump assembly is provided. Its electronic water pump is driven by its own motor, which is beneficial to reducing engine fuel consumption and improving the adaptability of the vehicle to matching working conditions. The engine is cooled through forced water circulation to ensure that the engine continues to work within the normal temperature range. By arranging fluid cavities and internal fluid channels on the body, the layout of external pipelines is reduced, making the overall structure of the electronic water pump assembly more compact, reducing space occupation, and reducing the total weight of the engine.
The composition of the electronic water pump assembly:
The electronic water pump assembly includes a body, an electronic water pump and an electronic thermostat. The body has a fluid cavity inside, and the fluid cavity can communicate with external components through the water inlet and outlet on the body. A first water inlet is provided on the body, communicated with the fluid cavity, and used to receive the first liquid from the engine. The fluid cavity is connected to the interior of the electronic water pump through a first fluid channel.
1. Body, 12-14, second to fourth water inlets, 15-17, first to second water outlets, 2. Electronic water pump.
The body may also be provided with a second water inlet and a third water inlet. Both the second water inlet and the third water inlet are connected to the fluid cavity. The second water inlet is used to receive the second liquid from the oil cooler, and the third water inlet is used to receive the second liquid from the oil cooler. The water inlet is used to receive the third liquid from the exhaust gas recirculation system, that is, the second liquid from the oil cooler and the third liquid from the exhaust gas recirculation system enter into the fluid air through the second water inlet and the third water inlet respectively. inside the cavity.
When the engine is in the small cycle operating mode, the first liquid from the engine, the second liquid from the oil cooler and the third liquid from the exhaust gas recirculation system merge in the fluid cavity to form a first combined flow. Then enter the inside of the electronic water pump through the first fluid channel. In the small circulation mode, the first fluid channel and the fluid cavity are connected.
The body may also be provided with a fourth water inlet. The fourth water inlet is connected to the interior of the electronic water pump through the first fluid channel and is used to receive the fourth liquid from the radiator. The electronic thermostat is also used to control the fourth water inlet. and the state of communication through the first fluid channel. During the large cycle of the engine, the fluid from the engine flows through the external radiator to dissipate heat, and then flows back into the electronic water pump. When the engine is in a large cycle operating mode, the electronic thermostat controls the fourth water inlet to communicate with the first fluid channel, so that the fourth liquid from the radiator passes through the fourth water inlet and the first fluid channel to reach the inside of the electronic water pump.
The electronic thermostat includes a main valve and an auxiliary valve. The main valve is used to control the connection state between the fourth water inlet and the first fluid channel. During the large cycle, the main valve is used to control the connection between the fourth water inlet and the first fluid channel. Connectivity status. The auxiliary valve is used to control the communication state between the fluid cavity and the first fluid channel. During the small cycle, the auxiliary valve is used to control the communication state between the fluid cavity and the first fluid channel. The electronic thermostat is arranged in the fourth water inlet, wherein the main valve is close to the water inlet end of the fourth water inlet, and the auxiliary valve is close to the water outlet end of the first water inlet.
The electronic thermostat is disposed at the water inlet end of the first fluid channel and is used to control the communication state between the fluid cavity and the interior of the electronic water pump. During a small cycle, the electronic thermostat controls the fluid cavity and the inside of the electronic water pump to be connected, so that the first fluid from the engine enters the fluid cavity through the first water inlet, and enters into the electronic water pump through the first fluid channel. Inside the water pump, the electronic water pump supplies liquid to the engine, thereby realizing a small cycle of the engine.
