Reversing fan, engine and reversing control method
A control method and engine technology, applied to engine components, machine/engine, engine cooling, etc., can solve the problems of difficult control of fan blade angle, difficult processing of reversing fan, complex control structure of reversing fan, etc. Achieve the effect of simple control structure and low processing difficulty
Pending Publication Date: 2018-06-12
WEICHAI POWER CO LTD
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Problems solved by technology
[0004] However, due to the need to change the angle of the fan blades through the on-off of the hydraulic oil, the number of the fan blades is multiple, and all need to be connected with the hydraulic oil circuit, so that the control structure of the reversing fan is complicated, and changing the fan blades It is more difficult to control the angle of the reversing fan, which makes the processing of the reversing fan more difficult
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[0039] The invention provides a reversing fan to simplify the control structure and reduce the processing difficulty. The invention also provides an engine and a reversing control method.
[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0041] Please refer to figure 1 and figure 2 , figure 1 Schematic diagram of the side structure of the reversing fan provided for the embodiment of the invention; figure 2 A schematic diagram of the rear structure of the reversing fan provided by the embodiment of the...
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The invention provides a reversing fan, an engine and a reversing control method. The reversing fan comprises a fan (C) and also comprises a first wheel train (A) which drives the fan (C) to rotate toward one direction, wherein the first wheel train (A) is provided with a first relay (41); when the first relay (41) is electrified, the first wheel train (A) controls the fan (C) to rotate; the reversing fan also comprises a second wheel train (B) which drives the fan (C) to rotate toward another direction, wherein the second wheel train (B) is provided with a second relay (42); and when the second relay (42) is electrified, the second wheel train (B) controls the fan (C) to rotate. The reversing fan provided by the invention can blow reversely by separately driving the fan through the firstand second wheel trains, so that the control structure of the reversing fan is simple, the angles of the fan blades need not to be changed, and the processing difficulty of the reversing fan is reduced.
Description
technical field [0001] The invention relates to the technical field of engine equipment, in particular to a reversing fan, an engine and a reversing control method. Background technique [0002] Engines are commonly used in a variety of equipment. Taking the agricultural machinery engine as an example, the engine is equipped with a reversing fan, which blows off the crop debris on the engine and the water tank through the reversing action to prevent risks such as combustion caused by high temperature. [0003] The current reversing fan is a hydraulic reversing fan, the rotation direction of the hydraulic reversing fan remains unchanged, and the angle of the fan blade is changed by switching on and off the hydraulic oil, thereby changing the wind direction. [0004] However, due to the need to change the angle of the fan blades through the on-off of the hydraulic oil, the number of the fan blades is multiple, and all need to be connected with the hydraulic oil circuit, so th...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04D27/00F01P5/04
CPCF01P5/043F04D27/00F01P2005/046
Inventor 郭海波马东岭秦永棚陈翠云尚嘉丽
Owner WEICHAI POWER CO LTD