Motorcycle oil-water refrigerating mechanism and method thereof

Abstract

The invention relates to a locomotive oil-water cooling device and method. The device is provided with two radiators which are placed on the corresponding upper and lower collecting pipes and are communicated with the upper and lower collecting pipes via inner pipeline. Clapboards are arranged in the upper and lower collecting pipes and divide the upper and lower collecting pipes and inner circulating pipelines of the radiator into completely independent water cooling unit and oil cooling unit. Cooling water and transmission oil separately enter the circulating pipelines in the water cooling unit and oil cooling unit for heat exchange and cooling with outside air via the radiator. The invention adopts a fan and a cooling section to achieve the aims of cooling water and transmitting oil, which simplifies the locomotive cooling system and greatly reduce locomotive manufacturing cost. The invention installs a bypass valve controlled by temperature between a hydrodynamic transmission box and an oil inlet, which changes the situation that when starting a diesel engine, insufficient oil charge of torque converter causes difficult start of locomotive, simplifies transmission oil circuit, shortens oil channel, reduces oil channel resistance and improves efficiency of transmission oil pump.

Description

technical field [0001] The invention relates to a cooling device and method adopted by a railway hydraulic transmission locomotive, in particular to an oil-water cooling device and method integrating locomotive transmission oil cooling and diesel engine cooling water cooling. Background technique [0002] At present, the locomotive transmission oil and fuel oil of railway hydraulic transmission locomotives at home and abroad are cooled by the water cooled by the cooling device and then flow through the oil heat exchanger to cool the oil. The auxiliary cooling system of the locomotive has an additional oil cooling device. It is a way of repeated cooling. The single section of the radiator of the cooling device not only cannot be reduced but also needs to be added with an oil cooling device, the cooling system has a complex structure and the manufacturing cost is increased. In addition, in a low temperature environment, when the transmission box is just started, the oil pump ...

AI Technical Summary

Problems solved by technology

The single section of the cooling device radiator can not be reduced, but also needs to add a set of oil cooling device, the structure of the cooling system is complicated, and the manufacturing cost is increased

In addition, in a low temperature environment, when the transmission box is just started, the oil pump pressure is insufficient. Due to the low temperature, the oil viscosity is high, the resistance of the oil passage is large, and the hydraulic torque converter is insufficiently filled with oil, making it difficult to start the locomotive.

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