CN216157785U - Centrifugal ventilator structure for turbine stamping combined engine accessory system - Google Patents
Centrifugal ventilator structure for turbine stamping combined engine accessory system Download PDFInfo
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- CN216157785U CN216157785U CN202122281424.8U CN202122281424U CN216157785U CN 216157785 U CN216157785 U CN 216157785U CN 202122281424 U CN202122281424 U CN 202122281424U CN 216157785 U CN216157785 U CN 216157785U
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- centrifugal ventilator
- accessory
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- centrifugal
- air inlet
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Abstract
The utility model belongs to the technical field of accessory systems of stamping combined engines, and discloses a centrifugal ventilator structure for an accessory system of a turbine stamping combined engine, which comprises an accessory case and a centrifugal ventilator, wherein the centrifugal ventilator is arranged between an air inlet channel and an oil return channel of the accessory case; wherein, the transmission shaft of the centrifugal ventilator is connected with the output shaft of the motor. When the turbine ramjet engine is in a ram compressed air working state, the centrifugal ventilator can still normally work, the oil-gas separation function of the engine is realized, the oil-gas separation efficiency and the separation rate are improved, the whole volume of the accessory case is not excessively influenced by the added motor, and the working efficiency and the use reliability of the motor are also ensured.
Description
Technical Field
The utility model belongs to the technical field of a stamping combined engine accessory system, relates to a centrifugal ventilator structure, and particularly relates to a centrifugal ventilator structure for a turbine stamping combined engine accessory system.
Background
The centrifugal ventilator of the traditional turbofan engine lubricating oil system is usually installed on an engine accessory casing or an aircraft casing, and is driven to rotate by a gear shaft in the engine accessory casing or the aircraft casing, so that the centrifugal ventilator works to generate an oil-gas separation effect, and the structure is mature in use and wide in application. A schematic diagram of a conventional centrifugal fan oil system fan is shown in fig. 1.
However, unlike turbofan engines, which have two different operating modes, a turbofan compressed air operating mode and a ram compressed air operating mode, in which the high pressure compressor shaft of the engine does not rotate, the operating mode of the centrifugal ventilator, which requires rotation of the mechanical drive train, is no longer applicable due to lack of mechanical energy.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve the problems, the utility model provides a centrifugal ventilator structure for an accessory system of a turbo-ramjet combined engine, wherein the centrifugal ventilator can still work normally when the turbo-ramjet engine is in a ram compressed air working state.
The technical scheme of the utility model is as follows:
a centrifugal ventilator structure for an accessory system of a turbine stamping combined engine comprises an accessory case and a centrifugal ventilator, wherein the centrifugal ventilator is arranged between an air inlet channel and an oil return channel of the accessory case; wherein, the transmission shaft of the centrifugal ventilator is connected with the output shaft of the motor.
Furthermore, the opening of the air inlet channel and the opening of the oil return channel of the accessory case are arranged on the same case wall of the accessory case, the centrifugal ventilator is arranged outside the case wall of the accessory case, and the centrifugal ventilator covers the opening of the air inlet channel and the opening of the oil return channel. The installation of the centrifugal ventilator of firstly being convenient for, the oil gas of the inlet channel of secondly being convenient for can not directly enter into oil return passage, need just can communicate oil return passage around the round in the centrifugal ventilator.
Furthermore, an opening of an air discharge channel of the centrifugal ventilator is arranged at the back of the centrifugal ventilator, and the opening direction of the air discharge channel is parallel to the opening direction of the air inlet channel and the opening direction of the oil return channel. The design ensures the continuity of the air inlet channel and the air outlet channel and improves the running efficiency of the centrifugal ventilator.
Furthermore, the opening position of the air discharge passage of the centrifugal ventilator is higher than the opening position of the air inlet passage of the accessory case, and the opening position of the air inlet passage of the accessory case is higher than the opening position of the oil return passage of the accessory case. The principle that gas is lighter than oil gas and lighter than oil body after oil-gas separation is utilized, so that the gas is discharged from the gas discharge channel, the oil body smoothly enters the oil return channel, and the oil-gas body continues to be separated under the pushing of the oil-gas body discharged from the gas inlet channel.
Further, the motor is provided outside the centrifugal ventilator. The purpose is in order to prevent effectively that oil gas from influencing motor normal operating.
Furthermore, the outer part of the motor is connected with the outer wall of the back part of the centrifugal ventilator, and an output shaft of the motor is directly connected with a transmission shaft of the centrifugal ventilator. On the one hand, the volume of the whole accessory casing is reduced through structuring, and on the other hand, the transmission efficiency of the motor is improved.
The utility model has the following beneficial effects:
1. when the turbine ramjet engine is in a ram compressed air working state, the centrifugal ventilator can still normally work, and the oil-gas separation function of the engine is realized;
2. the efficiency and the separation rate of oil-gas separation are improved;
3. the added motor does not influence the whole volume of the accessory case too much;
4. the working efficiency and the use reliability of the motor are ensured.
Drawings
FIG. 1 is a schematic view of a prior art centrifugal ventilator attachment configuration for an accessory case;
FIG. 2 is a schematic view of a centrifugal ventilator attachment structure of an accessory case according to an embodiment of the present invention;
in the figure: 1-accessory case, 2-centrifugal ventilator, 3-air inlet channel, 4-oil return channel, 5-transmission shaft, 6-air outlet channel and 7-motor.
Detailed Description
This section is an example of the present invention and is provided to explain and illustrate the technical solutions of the present invention.
A centrifugal ventilator structure for a turbine stamping combined engine accessory system comprises an accessory case 1 and a centrifugal ventilator 2, wherein the centrifugal ventilator 2 is arranged between an air inlet channel 3 and an oil return channel 4 of the accessory case 1; wherein, the transmission shaft 5 of the centrifugal ventilator 2 is connected with the output shaft of the motor 7.
The opening of the air inlet channel 3 and the opening of the oil return channel 4 of the accessory case 1 are arranged on the same case wall of the accessory case 1, the centrifugal ventilator 2 is arranged outside the case wall of the accessory case 1, and the centrifugal ventilator 2 covers the opening of the air inlet channel 3 and the opening of the oil return channel 4. The installation of the centrifugal ventilator 2 of firstly being convenient for, the oil gas of the inlet channel 3 of secondly being convenient for can not directly enter into oil return passage 4, need just can communicate oil return passage 4 around the round in centrifugal ventilator 2.
An air discharge channel 6 of the centrifugal ventilator 2 is opened at the back of the centrifugal ventilator 2, and the opening direction of the air discharge channel 6 is parallel to the opening direction of the air inlet channel 3 and the opening direction of the oil return channel 4. The design ensures the continuity of the air inlet channel 3 and the air outlet channel 6, and improves the operation efficiency of the centrifugal ventilator 2.
The air outlet channel 6 of the centrifugal ventilator 2 is higher than the air inlet channel 3 of the accessory case 1, and the air inlet channel 3 of the accessory case 1 is higher than the oil return channel 4 of the accessory case 1. By utilizing the principle that gas is lighter than oil gas and lighter than oil body after oil-gas separation, the gas is discharged from the gas discharge channel 6, the oil body smoothly enters the oil return channel 4, and the oil-gas body continues to be separated under the push of the oil-gas body discharged from the gas inlet channel 3.
The electric motor 7 is arranged outside the centrifugal fan 2. The purpose is to effectively prevent the oil gas from affecting the normal operation of the motor 7.
The outer part of the motor 7 is connected with the outer wall of the back part of the centrifugal ventilator 2, and the output shaft of the motor 7 is directly connected with the transmission shaft 5 of the centrifugal ventilator 2. On the one hand, the overall volume of the accessory housing 1 is reduced by structuring, and on the other hand, the transmission efficiency of the electric motor 7 is increased.
Compared with a centrifugal ventilator design structure driven by a mechanical system, the novel centrifugal ventilator is not driven by the mechanical transmission system of the engine to rotate, but is provided with the motor, can independently work without depending on the mechanical system of the engine, and meets the requirements of the ramjet engine.
Claims (6)
1. A centrifugal ventilator structure for an accessory system of a turbine stamping combined engine comprises an accessory case (1) and a centrifugal ventilator (2), wherein the centrifugal ventilator (2) is arranged between an air inlet channel (3) and an oil return channel (4) of the accessory case (1); it is characterized in that a transmission shaft (5) of the centrifugal ventilator (2) is connected with an output shaft of a motor (7).
2. The centrifugal ventilator structure for an attachment system of a turbo-ramjet combined engine according to claim 1, characterized in that the opening of the air inlet channel (3) and the opening of the oil return channel (4) of the attachment casing (1) are provided on the same casing wall of the attachment casing (1), the centrifugal ventilator (2) is installed outside the casing wall of the attachment casing (1), and the centrifugal ventilator (2) covers the openings of the air inlet channel (3) and the oil return channel (4).
3. The centrifugal ventilator structure for the turbo-ram combined engine accessory system according to claim 2, characterized in that the air discharge channel (6) of the centrifugal ventilator (2) is opened at the back of the centrifugal ventilator (2), and the opening direction of the air discharge channel (6) is parallel to the opening direction of the air inlet channel (3) and the opening direction of the oil return channel (4).
4. The centrifugal ventilator structure for the turbo-ram combined engine accessory system according to claim 3, characterized in that the air outlet channel (6) of the centrifugal ventilator (2) is opened at a position higher than the air inlet channel (3) of the accessory case (1), and the air inlet channel (3) of the accessory case (1) is opened at a position higher than the oil return channel (4) of the accessory case (1).
5. A centrifugal ventilator structure for a turbo-ramjet combined engine accessory system according to claim 1, characterized in that said electric motor (7) is provided outside the centrifugal ventilator (2).
6. A centrifugal ventilator structure for an attachment system of a turbo-ramjet combined engine according to claim 5, characterized in that said electric motor (7) is externally connected to the outer wall of the back of the centrifugal ventilator (2), and the output shaft of the electric motor (7) is directly connected to the drive shaft (5) of the centrifugal ventilator (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122281424.8U CN216157785U (en) | 2021-09-18 | 2021-09-18 | Centrifugal ventilator structure for turbine stamping combined engine accessory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122281424.8U CN216157785U (en) | 2021-09-18 | 2021-09-18 | Centrifugal ventilator structure for turbine stamping combined engine accessory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216157785U true CN216157785U (en) | 2022-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122281424.8U Active CN216157785U (en) | 2021-09-18 | 2021-09-18 | Centrifugal ventilator structure for turbine stamping combined engine accessory system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216157785U (en) |
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2021
- 2021-09-18 CN CN202122281424.8U patent/CN216157785U/en active Active
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