Integrated high-flow control device
A technology of control device and flow control valve, which is applied in the control of coolant flow, engine components, machines/engines, etc. problem, to achieve the effect of smooth valve movement, excellent casting process, and reduction of engine knocking
Pending Publication Date: 2022-04-12
DONGFENG FUJI THOMSON THERMOSTAT
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Problems solved by technology
Main manifestations: thermostat valve sticking, high / low engine water temperature, high product rejection rate in the manufacturing process, high maintenance cost for failures (if there is an abnormality, the overall replacement will cost a lot)
Existing thermostats cannot solve existing problems
The reason: the water pump equipped with the heavy-duty commercial vehicle engine has a large flow rate and a high lift, which has a large impact on the thermostat valve
Method used
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[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...
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The invention relates to an integrated large-flow control device which comprises an upper cover body and a lower cover body, a first flow control valve and a second flow control valve are arranged between the upper cover body and the lower cover body, and connection and disconnection between a first working cavity and a lower working cavity are controlled through the first flow control valve. On-off between the second working cavity and the lower working cavity is controlled through the second flow control valve, on-off control between the water outlet of the engine and the radiator is achieved, large-flow control over cooling liquid is achieved, the structure is simple and compact, and valve movement is stable. Rapid temperature rise during cold start of the engine can be achieved, various different working modes are integrated, the engine operates in a high-temperature mode during partial load, and energy conservation and emission reduction are achieved; when the engine is at high speed and large load, the engine operates in a low-temperature mode, engine overheating is prevented, engine knocking is reduced, and the service life of the engine is prolonged.
Description
technical field [0001] The invention relates to the technical field of vehicle cooling systems, in particular to an integrated large flow control device. Background technique [0002] During the working process of the engine, due to the combustion of the combustible mixture, the gas temperature in the cylinder reaches 1800-2000°C. Cylinder block, cylinder head, piston and other parts that are in direct contact with high-temperature gas, if they are not cooled in time or not cooled enough, the parts will be worn out due to poor lubrication, and the engine power will be reduced due to the reduction of cylinder filling volume and abnormal combustion; However, if the cooling is excessive, the viscosity of the oil will be increased to affect the lubrication, and a large amount of heat will be taken away at the same time, and the thermal efficiency will decrease. Therefore, the engine needs to work in a more suitable temperature range. [0003] In order to meet this requirement,...
Claims
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IPC IPC(8): F01P7/14F01P7/16
Inventor李干明宋志兵于秀娟邓杨黄瑞王乾
OwnerDONGFENG FUJI THOMSON THERMOSTAT