CN106150698A - A kind of hydraulic accumulator for supplementing fuel feeding - Google Patents
A kind of hydraulic accumulator for supplementing fuel feeding Download PDFInfo
- Publication number
- CN106150698A CN106150698A CN201610778856.0A CN201610778856A CN106150698A CN 106150698 A CN106150698 A CN 106150698A CN 201610778856 A CN201610778856 A CN 201610778856A CN 106150698 A CN106150698 A CN 106150698A
- Authority
- CN
- China
- Prior art keywords
- lid
- base cover
- hydraulic accumulator
- fuel feeding
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/06—Arrangements of bearings; Lubricating
Abstract
The invention discloses a kind of hydraulic accumulator for supplementing fuel feeding, including housing, base cover, lid and piston, described base cover and lid are separately mounted to bottom and the top of housing, described piston is placed in enclosure interior, and housing cavity is separated into lubricating cavity and air chamber, it is provided with spring in described air chamber, the upper end of described spring is connected with piston, lower end is sleeved on the spring base being arranged in base cover, it is respectively arranged with lubricating oil inlet pipe joint and oil outlet pipe joint on described lid, described base cover is provided with connection for breather pipe.Use the hydraulic accumulator for supplementing fuel feeding of the present invention, solving electromotor can not the lubricating oil supply problem of normal fuel injection to bearing under zero-g, nearly zero-g and minusg effect, ensure that electromotor normal work now, improve functional reliability and the flight safety of aircraft of electromotor.
Description
Technical field
The invention belongs to aero engine technology field, be specifically related to a kind of hydraulic accumulator for supplementing fuel feeding.
Background technology
In the lubricating oil oil supply system of tradition model electromotor, it is common that after lubricating oil being carried out supercharging by booster pump, pass through
Pipeline is assigned to each supporting of electromotor and carries out the lubrication of the rotatable parts such as bearing and gear.When at aircraft normal flight, send out
Motivation oil supply system ensure that the normal lubrication of each bearing；But when aircraft maneuver, electromotor can zero-g, nearly zero
Working under overload and negative G condition, booster pump is inhaled in short-term and is substantially reduced, the most not less than lubricating oil or the lubricating oil amount that is drawn onto
Can guarantee that the normal supply of bearing oil, affect the functional reliability of bearing, particularly bear heavy duty bearing at a high speed, seriously
Affect the reliably working of electromotor and the flight safety of aircraft.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of hydraulic accumulator for supplementing fuel feeding.
The present invention is achieved by the following technical programs.
A kind of hydraulic accumulator for supplementing fuel feeding, including housing, base cover, lid and piston, described base cover and
Lid is separately mounted to bottom and the top of housing, and described piston is placed in enclosure interior, and housing cavity is separated into lubricating cavity
And air chamber, it being provided with spring in described air chamber, the upper end of described spring is connected with piston, and lower end is sleeved on and is arranged at base
On the spring base covered.
Lubricating oil inlet pipe joint and oil outlet pipe joint it is respectively arranged with on described lid.
It is provided with connection for breather pipe in described base cover.
Described base cover and lid are connected with lower end and the upper end of housing by stud respectively, and pass through nut check.
It is provided with packing ring between described nut and base cover and between nut and lid.
Installation limit it is additionally provided with on described lid.
The beneficial effects of the present invention is:
Use the hydraulic accumulator for supplementing fuel feeding of the present invention, solve electromotor in zero-g, nearly zero mistake
Carry and can not the lubricating oil supply problem of normal fuel injection to bearing under minusg effect, it is ensured that electromotor normal work now；
Improve functional reliability and the flight safety of aircraft of electromotor.This hydraulic accumulator is installed simultaneously only needs two supports to fix
On the engine, have that simple installation, volume be little, simple in construction, lighter in weight and reliability relatively advantages of higher.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
In figure: 1-lubricating oil inlet pipe joint, 2-housing, 3-installs limit, 4-spring, 5-piston, 6-spring base, 7-base
Lid, 8-lid, 9-oil outlet pipe joint, 10-stud, 11-nut, 12-connection for breather pipe, 13-lubricating cavity, 14-air chamber.
Detailed description of the invention
Further describe technical scheme below in conjunction with the accompanying drawings, but claimed scope is not limited to institute
State.
As it is shown in figure 1, a kind of hydraulic accumulator for supplementing fuel feeding of the present invention, including housing 2, base cover 7,
Lid 8 and piston 5, described base cover 7 and lid 8 be separately mounted to bottom and the top of housing 2, and described piston 5 is placed in housing 2
Inside, and housing 2 inner chamber is separated into lubricating cavity 13 and air chamber 14, it is provided with spring 4, described spring in described air chamber 14
The upper end of 4 is connected with piston 5, and lower end is sleeved on the spring base 6 being arranged in base cover 7.Spring base 6, is arranged on base cover 7
Center, spring 4 is positioned at housing central section, and the central axes of the centrage of spring 4 and housing, it is ensured that spring 4 stress is equal
Even.Use the hydraulic accumulator described in the technical program to be assemblied in the oil feed line in engine lubrication system, be used for starting
Machine provides lubricating oil to engine bearing under zero-g, nearly zero-g and minusg effect, it is to avoid at electromotor in zero-g, near
The oil lubrication of zero-g and minusg operating mode lower bearing is not enough, improves functional reliability and the flight safety of aircraft of electromotor
Property.
Lubricating oil inlet pipe joint 1 and oil outlet pipe joint 9 it is respectively arranged with on described lid 8.Lubricating oil inlet pipe joint 1
For being connected with lubricating oil adnexa booster pump conduit so that lubricating oil enters the lubricating cavity 13 of housing 2 by lubricating oil inlet pipe joint 1
In；Oil outlet pipe joint 9 lubricates engine bearing after the lubricating oil in lubricating cavity 13 is input into electromotor.
It is provided with connection for breather pipe 12 in described base cover 7.Connection for breather pipe 12 is connected to electromotor by exterior line
Ventilating system, after air enters into engine accessory power rating casing, drains into air by the valve of eccentric contract.
Described base cover 7 and lid 8 are connected with lower end and the upper end of housing 2 by stud 10 respectively, and by nut 11
Locking.Use stud nut to connect, dismantle and easy for installation, low cost of manufacture.
It is provided with packing ring between described nut 11 and base cover 7 and between nut 11 and lid 8.Prevent in work process
Middle produce leakage because vibration makes nut 11 loosen.
Installation limit 3 it is additionally provided with on described lid 8.Fix on the engine for hydraulic accumulator is arranged on.
As it is shown in figure 1, the work process of the present invention is: during normal flight, under lubricating oil pressure effect, lubricating oil is attached from lubricating oil
Part booster pump enters lubricating cavity 13 along the conduit being connected with lubricating oil inlet pipe joint 1, promotes piston 5 to move to base cover 7 direction,
The lubricating oil of a constant volume is stored in lubricating cavity 13；Lubricating oil is from oil outlet pipe joint 9 out simultaneously, and by with oil outlet
The conduit that pipe joint 9 is connected lubricates engine bearing after entering electromotor.Under zero-g, nearly zero-g and minusg effect,
Lubricating oil pressure in lubricating oil adnexa booster pump reduces, and now, the check valve in lubricating oil inlet pipe joint 1 cuts out, at spring force 4
Effect under, piston 5 moves to the direction of lid 8, is squeezed by oil outlet pipe joint 9 lubricating oil stored in lubricating cavity 13
Going out, fuel feeding is to engine bearing.Meanwhile, lubricating cavity 13 is separated by piston 5 with air chamber 14, and connection for breather pipe 12 passes through exterior tube
Road is connected to engine breathing system, after air enters into engine accessory power rating casing, is drained into greatly by the valve of eccentric contract
Gas.
Use hydraulic accumulator of the present invention to solve in the electromotor work process when aircraft maneuver, send out
Motivation bearing fuel feeding problem under the conditions of zero-g, nearly zero-g and minusg；Shown by test, in national military standard regulation
In the 30s oil-break time, electromotor is working properly, and overhaul bearing is without exception.This hydraulic accumulator is applied in lubricating oil fuel feeding system
In system, its structure is that unpowered mechanical is automatically adjusted, and when electromotor is normal, relies on the fuel transfer pressure of lubricating oil oil feed pump to air chamber
Spring-compressed, make lubricating oil be stored in the lubricating cavity 13 of accumulator, when electromotor is at zero-g, nearly zero-g and minusg bar
Under part, the fuel transfer pressure of lubricating oil oil feed pump is not enough or during without fuel transfer pressure, by the spring force in air chamber 14 by accumulator lubricating oil
Lubricating oil in chamber 13 is sent, and solves lubricating oil supply problem during now electromotor work.Meanwhile, the hydraulic accumulator peace of this structure
Dress only needs two supports fixing on the engine, have that simple installation, volume be little, simple in construction, lighter in weight and reliability relatively
Advantages of higher.
Claims (6)
1. one kind for supplementing the hydraulic accumulator of fuel feeding, it is characterised in that: include housing (2), base cover (7), lid (8) and
Piston (5), described base cover (7) and lid (8) are separately mounted to bottom and the top of housing (2), and described piston (5) is placed in shell
Body (2) is internal, and housing (2) inner chamber is separated into lubricating cavity (13) and air chamber (14), and described air chamber is provided with in (14)
Spring (4), the upper end of described spring (4) is connected with piston (5), and lower end is sleeved on the spring base (6) being arranged in base cover (7)
On.
A kind of hydraulic accumulator for supplementing fuel feeding the most according to claim 1, it is characterised in that: described lid (8)
On be respectively arranged with lubricating oil inlet pipe joint (1) and oil outlet pipe joint (9).
A kind of hydraulic accumulator for supplementing fuel feeding the most according to claim 1, it is characterised in that: described base cover
(7) connection for breather pipe (12) it is provided with on.
A kind of hydraulic accumulator for supplementing fuel feeding the most according to claim 1, it is characterised in that: described base cover
(7) it is connected with lower end and the upper end of housing (2) by stud (10) respectively with lid (8), and is locked by nut (11).
A kind of hydraulic accumulator for supplementing fuel feeding the most according to claim 4, it is characterised in that: described nut (11)
And it is provided with packing ring between base cover (7) and between nut (11) and lid (8).
A kind of hydraulic accumulator for supplementing fuel feeding the most according to claim 1, it is characterised in that: described lid (8)
On be additionally provided with installation limit (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610778856.0A CN106150698A (en) | 2016-08-31 | 2016-08-31 | A kind of hydraulic accumulator for supplementing fuel feeding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610778856.0A CN106150698A (en) | 2016-08-31 | 2016-08-31 | A kind of hydraulic accumulator for supplementing fuel feeding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106150698A true CN106150698A (en) | 2016-11-23 |
Family
ID=57344327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610778856.0A Pending CN106150698A (en) | 2016-08-31 | 2016-08-31 | A kind of hydraulic accumulator for supplementing fuel feeding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106150698A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958509A (en) * | 2017-03-30 | 2017-07-18 | 乌鲁木齐金风天翼风电有限公司 | The stable-pressure device of variable paddle speed reducer and the wind power generating set including the stable-pressure device |
| CN110949675A (en) * | 2019-12-06 | 2020-04-03 | 江西洪都航空工业集团有限责任公司 | Auxiliary oil supply device for airplane negative overload |
| CN113432029A (en) * | 2021-06-25 | 2021-09-24 | 中国航发沈阳发动机研究所 | Oil lubricating valve controlled by external air |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1333156A1 (en) * | 2002-01-31 | 2003-08-06 | Kabushiki Kaisha Toshiba | Lubrication system and its modification method |
| CN2916155Y (en) * | 2006-05-10 | 2007-06-27 | 湖南天雁机械有限责任公司 | Turbocharger protection device |
| CN202900417U (en) * | 2012-09-21 | 2013-04-24 | 中国航空动力机械研究所 | Oil cut-off device |
| CN204327213U (en) * | 2014-12-12 | 2015-05-13 | 中航商用航空发动机有限责任公司 | Eccentric contract and turbogenerator lubrication system |
| CN205977419U (en) * | 2016-08-31 | 2017-02-22 | 贵州航空发动机研究所 | A hydraulic pressure accumulator for lubricating oil oil feeding system |
-
2016
- 2016-08-31 CN CN201610778856.0A patent/CN106150698A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1333156A1 (en) * | 2002-01-31 | 2003-08-06 | Kabushiki Kaisha Toshiba | Lubrication system and its modification method |
| CN2916155Y (en) * | 2006-05-10 | 2007-06-27 | 湖南天雁机械有限责任公司 | Turbocharger protection device |
| CN202900417U (en) * | 2012-09-21 | 2013-04-24 | 中国航空动力机械研究所 | Oil cut-off device |
| CN204327213U (en) * | 2014-12-12 | 2015-05-13 | 中航商用航空发动机有限责任公司 | Eccentric contract and turbogenerator lubrication system |
| CN205977419U (en) * | 2016-08-31 | 2017-02-22 | 贵州航空发动机研究所 | A hydraulic pressure accumulator for lubricating oil oil feeding system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958509A (en) * | 2017-03-30 | 2017-07-18 | 乌鲁木齐金风天翼风电有限公司 | The stable-pressure device of variable paddle speed reducer and the wind power generating set including the stable-pressure device |
| CN110949675A (en) * | 2019-12-06 | 2020-04-03 | 江西洪都航空工业集团有限责任公司 | Auxiliary oil supply device for airplane negative overload |
| CN113432029A (en) * | 2021-06-25 | 2021-09-24 | 中国航发沈阳发动机研究所 | Oil lubricating valve controlled by external air |
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Application publication date: 20161123 |
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| RJ01 | Rejection of invention patent application after publication |