Transmission box oil return system
A technology of oil return system and transmission shaft, which is applied in the direction of engine components, engine lubrication, turbine/propulsion device lubrication, etc., to meet the needs of use, good application prospects and social benefits, and reduce the size of the effect
Active Publication Date: 2020-02-04
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
[0004] The invention provides a transmission box oil return system to solve how to pump back the lubricating oil in the transmission box body to the oil collection pool of the accessory drive casing when the aeroengine is running and how to pump the lubricating oil in the transmission box body when the aeroengine stops running. The problem of pumping oil back into the oil tank of an aeroengine
Method used
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[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0031] Such as figure 1 and figure 2 As shown, the transmission box oil return system of this embodiment includes a transmission box body 1 and a transmission box oil pumping device. The oil well pump 2, the drive mechanism for driving the oil well pump 2 and the drive selection mechanism for selecting the drive mechanism to drive the oil well pump 2 to work or the aeroengine to drive the oil well pump 2 to work. The first oil passage communicated with the oil collection pool and the second oil passage used to communicate with the lubricating oil tank of the aeroengine, and the transmission box oil pumping device also includes a device for selecting the oil well pump 2 to communicate with th...
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The invention provides a transmission box oil returning system. The transmission box oil returning system comprises a transmission box body and a transmission box oil pumping device. The transmissionbox oil pumping device includes an oil pumping pump, a driving mechanism and a drive selection mechanism, wherein the oil pumping pump is used for pumping lubricating oil from the inner part of the transmission box body through an oil way and pumping and outputting the lubricating oil, the driving mechanism is used for driving the operation of the oil pumping pump, and the drive selection mechanism is used for selecting a drive mechanism to drive the operation of the oil pumping pump or selecting an aero-engine to drive the operation of the oil pumping pump. The oil way comprises a first oil way body for communicating with an oil receiving tank of an accessory drive casing and a second oil way body for communicating with a lubricating oil tank of the aero-engine. The transmission box oil pumping device further includes an oil way selection mechanism for selecting the communication between the oil pumping pump and the first oil way body or the second oil way body. Different oil ways areselected in different operation states of the aero-engine through the oil way selection mechanism, so that the lubricating oil in the transmission box body is pumped back into the oil receiving tankof the accessory drive casing when the aero-engine runs and the lubricating oil in the transmission box body is pumped back into the lubricating oil tank of the aero-engine when the aero-engine stopsrunning.
Description
technical field [0001] The invention relates to the technical field of aero-engine accessory transmission, in particular to an oil return system for a transmission box. Background technique [0002] The accessory transmission casing of the aero-engine is used for the transmission and installation of accessories. When the aero-engine needs to drive and install many accessories, it is difficult to bear the burden on the accessory transmission casing. It is necessary to design the transmission box accessory transmission mechanism to assist the transmission and installation of accessories. . [0003] In order to meet the requirements of the aero-engine, it is necessary to pump the lubricating oil in the transmission box back to the oil collection sump of the accessory drive casing when the aero-engine is running, and to pump the lubricating oil in the transmission box back to the oil tank when the aero-engine stops running in the oil tank of an aircraft engine. Contents of th...
Claims
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IPC IPC(8): F02C7/06
CPCF02C7/06
Inventor 周娇君陈为成浪永陈端凤
Owner CHINA HANGFA SOUTH IND CO LTD