Water system resistance measurement apparatus of vehicle cooling system

Abstract

The invention discloses a water system resistance measuring device for an automobile cooling system, comprising a matrix and the components arranged on the matrix, namely, an engine, an expansion water bottle, a vehicle-mounted water pump, a thermostat valve, a water tank and a heater core body; the engine, the expansion water bottle, the vehicle-mounted water pump, the thermostat valve, the water tank and the heater core body are connected through a pipeline according to the connecting mode of the automobile cooling system; the pipeline is also provided with a flow sensor and a plurality of pressure sensors arranged near the vehicle-mounted water pump, the engine, the water tank and the heater core body; a motor and a water storage tank which can be heated are arranged on the matrix; themotor is drivenly connected with the vehicle-mounted water pump; and the water storage tank which can be heated is connected with the pipeline through a stop valve. As all the components in the device are connected based on the connecting mode of the automobile cooling system, the measured flow and pressure values can be much closer to the true value and can better reflect the real situation of the cooling system, so the measurement results are more reliable.

Description

technical field [0001] The invention relates to a test and measurement device for a vehicle, in particular to a device for measuring fluid resistance in an automobile cooling system. Background technique [0002] The measurement of the water system resistance in the vehicle cooling system is very important, because the water system resistance is the basis for the selection of the engine water pump. It is of great significance for the measurement of parameters such as the pressure of some key points in the vehicle cooling system. For example, the measurement of the pressure at the inlet and outlet of the water tank can provide flow parameters in line with the actual vehicle conditions for the performance test of the water tank, so that the heat transfer performance of the water tank can be improved. The measurement of the pump is more accurate; the measurement of the pressure at the water pump inlet, combined with the temperature measurement, can predict and prevent the occur...

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Problems solved by technology

The disadvantage of this method is that it does not comprehensively consider the influence of the pipeline layout of the entire cooling system, the joint form, and the structure of the engine water chamber on the total resistance of the water system. The problem caused by this measurement method is that the measured value is not accurate, which is different from the actual situation. There is a large difference, and it is impossible to know the pressure of a specific position, etc.

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