CN107367390A - Engine pedestal air inlet voltage-stabilizing system - Google Patents
Engine pedestal air inlet voltage-stabilizing system Download PDFInfo
- Publication number
- CN107367390A CN107367390A CN201710691441.4A CN201710691441A CN107367390A CN 107367390 A CN107367390 A CN 107367390A CN 201710691441 A CN201710691441 A CN 201710691441A CN 107367390 A CN107367390 A CN 107367390A
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- Prior art keywords
- casing
- engine
- air inlet
- stabilizing system
- dividing plate
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The invention discloses a kind of engine pedestal air inlet voltage-stabilizing system.The engine pedestal air inlet voltage-stabilizing system includes：Engine；Air cleaner；Flowmeter, it is arranged between the engine and air cleaner, and the both ends of the flowmeter are respectively arranged with forward and backward transition conduit, and the preceding transition conduit is used to be connected with the air cleaner；And damping pressurizer tank, it includes：Casing, dividing plate and damper tube, the casing is square, side is connected by rear transition conduit with flowmeter, opposite side is connected by escape pipe with the engine, pressure regulator valve is provided with the escape pipe, the dividing plate is vertically arranged among casing, and the central axis of the damper tube is placed at bottom to the top a quarter of the dividing plate.The engine pedestal air inlet voltage-stabilizing system ensure that the stability of charge flow rate measurement, and increase aperture butterfly valve to meet more test requirements documents, ensure test mass, improve experiment benefit.
Description
Technical field
The present invention relates to engine rig test field, more particularly to a kind of engine pedestal air inlet voltage-stabilizing system.
Background technology
As shown in figure 1, the engine pedestal gas handling system used at present is entered between air cleaner 11 and engine 12
Tracheae insertion inlet air flow gauge 13, and (the aperture butterfly of pressure regulator valve 14 is set between inlet air flow gauge 13 and air cleaner 11
Valve).
But (including three cylinders, two cylinders, single cylinder) especially non pressurized device internal combustion engine, gas are carried out below the four-cylinder of bench test
Door and piston open and close movement cause turbulent flow to form pulse, while four-cylinder is small compared with six cylinder machine inlet manifolds, and buffering little Yi forms disorderly
Stream.And engine charge air-conditioning system is not installed in engine test room, environmental change can not ensure that greatly admission pressure is stable
Property.Ambient pressure environment it is unstable, and the interference of engine itself causes charge flow rate measured value fluctuating range big, it is impossible to
The actual air inflow of enough real reaction engines, can not guarantee test quality.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or implying the information structure in any form.
The content of the invention
It is an object of the invention to provide a kind of simple and reasonable engine pedestal air inlet voltage-stabilizing system, the engine
Existing gas handling system is increased damping pressurizer tank to ensure the stability of charge flow rate measurement, Er Qiezeng by stand air inlet voltage-stabilizing system
Degree of increasing butterfly valve meets more test requirements documents, ensures test mass, improves experiment benefit.
To achieve the above object, the invention provides a kind of engine pedestal air inlet voltage-stabilizing system, including：Engine；It is empty
Air cleaner；Flowmeter, it is arranged between the engine and air cleaner, and the both ends of the flowmeter are respectively arranged with
Forward and backward transition conduit, the preceding transition conduit are used to be connected with the air cleaner；And damping pressurizer tank, it includes：Casing,
Dividing plate and damper tube, the casing are square, and side is connected by rear transition conduit with flowmeter, opposite side by escape pipe with
The engine connects, and is provided with pressure regulator valve on the escape pipe, the dividing plate is vertically arranged among casing, the damper tube
Central axis be placed at bottom to the top a quarter of the dividing plate, and, damper tube equidistant with the both sides of casing
Both ends of the surface it is equidistant to dividing plate.
Preferably, in above-mentioned technical proposal, the center line of rear transition conduit is vertical with casing, and its position is located at the casing
Bottom is at 3/4ths of top and equidistant with two sides of the casing.
Preferably, in above-mentioned technical proposal, escape pipe and rear transition conduit are correspondingly arranged at the both sides of casing, its center line with
The casing is vertical, the position of the escape pipe be located at the bottom of the casing at 3/4ths of top and with the both sides of casing
Side is equidistant.
Preferably, in above-mentioned technical proposal, dividing plate is welded in casing, surrounding gap glue or rubber belt sealing.
Compared with prior art, the present invention has the advantages that：The engine pedestal air inlet voltage-stabilizing system will be existing
Gas handling system increase damps pressurizer tank to ensure the stability of charge flow rate measurement, and it is more to meet to increase aperture butterfly valve
Test requirements document, test mass is ensured, improve experiment benefit.
Brief description of the drawings
Fig. 1 is the system diagram of available engine stand air inlet voltage-stabilizing system.
Fig. 2 is the system diagram of inventive engine stand air inlet voltage-stabilizing system.
Fig. 3 is the structural representation of inventive engine stand air inlet voltage-stabilizing system.
Fig. 4 is the flow signal comparison diagram of inventive engine stand air inlet voltage-stabilizing system.
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
As shown in Figures 2 and 3, according to the specific knot of the engine pedestal air inlet voltage-stabilizing system of the specific embodiment of the invention
Structure includes：Engine 21, flowmeter 22, pressure regulator valve 23 (aperture butterfly valve), damping pressurizer tank 24 and air cleaner 25.Wherein,
Damping pressurizer tank 24 is set up between engine 21 and flowmeter 22, to ensure the stability of charge flow rate measurement, and is being hindered
Increase aperture butterfly valve between Buddhist nun's pressurizer tank 24 and engine 21 to meet more test requirements documents, ensure test mass, improve examination
Test benefit.
Specifically, flowmeter 22 is provided with the air inlet pipe between engine 21 and air cleaner 25, for measuring
The actual air inflow of engine.The both ends of flowmeter 22 are respectively arranged with forward and backward transition conduit, play the work of charge flow rate current stabilization
With, wherein, the length of the preceding transition conduit of flowmeter 22 is 6 times of calibers, for being connected with air cleaner 25；After flowmeter 22
The length of transition conduit is 3 times of calibers, for being connected with the damping pressurizer tank 24 being located between engine 21 and flowmeter 22.
Preferably, engine 21 is (including three cylinders, two cylinders, single cylinder) internal combustion engine below four-cylinder, and engine 21 is non-increasing
Depressor internal combustion engine.
Damping pressurizer tank 24 includes：Casing 26, dividing plate 27 and damper tube 28.Wherein, casing 26 is square, and side passes through
Transition conduit is connected with flowmeter 22 afterwards, and opposite side is connected by escape pipe with engine 21, and pressure regulator valve 23 (aperture butterfly valve) is set
On the escape pipe, to meet more test requirements documents, test mass is ensured, improves experiment benefit.Dividing plate 27 is vertically arranged in
Among casing 26, both sides are equidistant；Preferably, dividing plate is welded in casing, surrounding gap glue or rubber belt sealing.Damper tube 28
Central axis be placed at bottom to the top a quarter of dividing plate, it is and equidistant with the both sides of casing 26, the two of damper tube
End face is equidistant to dividing plate.
Preferably, the volume for damping pressurizer tank 24 is more than 290 times of the discharge capacity of engine 21, suitable for all four-cylinders without entering
Gas air-conditioning system stand.
Preferably, flowmeter 22 passes through rear transition conduit and the damping pressurizer tank 24 being located between engine 21 and flowmeter 22
Connection, the center line of rear transition conduit is vertical with casing 26, its position be located at the bottom of casing 26 at 3/4ths of top simultaneously
It is equidistant with two sides of casing 26.Escape pipe is correspondingly arranged at the both sides of casing 26, its center line and casing 26 with rear transition conduit
Vertically, its position is located at the bottom of casing 26 at 3/4ths of top and equidistant with two sides of casing 26.
Preferably, the diameter proportion for damping pressurizer tank 24 and damper tube is 22.5：1.
By current capacity contrast, the engine pedestal air inlet voltage-stabilizing system of the application is closer to charge flow rate actual value；Such as Fig. 4
It is shown, flow signal is contrasted, the sampled signal of the engine pedestal air inlet voltage-stabilizing system of the application is more stable.
To sum up, existing gas handling system is increased damping pressurizer tank to ensure inlet air flow by the engine pedestal air inlet voltage-stabilizing system
The stability of measurement, and increase aperture butterfly valve to meet more test requirements documents, test mass is ensured, improves experiment effect
Benefit.
The description of the foregoing specific illustrative embodiment to the present invention is to illustrate and the purpose of illustration.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explain that the certain principles of the present invention and its reality should
With so that those skilled in the art can realize and utilize the present invention a variety of exemplaries and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (4)
- A kind of 1. engine pedestal air inlet voltage-stabilizing system, it is characterised in that including：Engine；Air cleaner；Flowmeter, it is arranged between the engine and air cleaner, and the both ends of the flowmeter are respectively arranged with forward and backward mistake Pipe is crossed, the preceding transition conduit is used to be connected with the air cleaner；AndPressurizer tank is damped, it includes：Casing, dividing plate and damper tube, the casing are square, and side passes through rear transition conduit and stream Gauge is connected, and opposite side is connected by escape pipe with the engine, pressure regulator valve is provided with the escape pipe, the dividing plate erects Directly it is arranged among casing, the central axis of the damper tube is placed at bottom to the top a quarter of the dividing plate, And it is equidistant with the both sides of casing, the both ends of the surface of the damper tube are equidistant to dividing plate.
- 2. engine pedestal air inlet voltage-stabilizing system according to claim 1, it is characterised in that the center of transition conduit after described Line is vertical with casing, and its position is located at the bottom of the casing at 3/4ths of top and with two sides of the casing etc. Away from.
- 3. engine pedestal air inlet voltage-stabilizing system according to claim 2, it is characterised in that the escape pipe and rear transition Pipe is correspondingly arranged at the both sides of casing, and its center line is vertical with the casing, and the position of the escape pipe is located at the bottom of the casing Portion is at 3/4ths of top and equidistant with two sides of casing.
- 4. engine pedestal air inlet voltage-stabilizing system according to claim 1, it is characterised in that the dividing plate is welded on casing It is interior, surrounding gap glue or rubber belt sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691441.4A CN107367390A (en) | 2017-08-14 | 2017-08-14 | Engine pedestal air inlet voltage-stabilizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710691441.4A CN107367390A (en) | 2017-08-14 | 2017-08-14 | Engine pedestal air inlet voltage-stabilizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107367390A true CN107367390A (en) | 2017-11-21 |
Family
ID=60308975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710691441.4A Pending CN107367390A (en) | 2017-08-14 | 2017-08-14 | Engine pedestal air inlet voltage-stabilizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107367390A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03281975A (en) * | 1990-03-30 | 1991-12-12 | Mazda Motor Corp | Inlet device for engine |
| CN2553347Y (en) * | 2002-07-30 | 2003-05-28 | 吉林大学 | Damping constant-current device for measuring pulsating airflow |
| CN201575913U (en) * | 2009-11-26 | 2010-09-08 | 浙江大学 | Air inflow management exercise system used in internal combustion engine |
| CN202362033U (en) * | 2011-11-04 | 2012-08-01 | 郑州宇通客车股份有限公司 | Air flowmeter and engine intake passage assembly using same |
| CN202789236U (en) * | 2012-09-19 | 2013-03-13 | 中联重科股份有限公司渭南分公司 | Air inlet system for engines and pressure stabilizing box thereof |
| JP2013087655A (en) * | 2011-10-14 | 2013-05-13 | Toyota Boshoku Corp | Air flow meter device and structure of air cleaner outlet |
| CN105372073A (en) * | 2015-12-25 | 2016-03-02 | 中北大学 | High-pressure tumble air intake testing device for engine |
| CN206990216U (en) * | 2017-08-14 | 2018-02-09 | 广西玉柴机器股份有限公司 | Engine pedestal air inlet voltage-stabilizing system |
-
2017
- 2017-08-14 CN CN201710691441.4A patent/CN107367390A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03281975A (en) * | 1990-03-30 | 1991-12-12 | Mazda Motor Corp | Inlet device for engine |
| CN2553347Y (en) * | 2002-07-30 | 2003-05-28 | 吉林大学 | Damping constant-current device for measuring pulsating airflow |
| CN201575913U (en) * | 2009-11-26 | 2010-09-08 | 浙江大学 | Air inflow management exercise system used in internal combustion engine |
| JP2013087655A (en) * | 2011-10-14 | 2013-05-13 | Toyota Boshoku Corp | Air flow meter device and structure of air cleaner outlet |
| CN202362033U (en) * | 2011-11-04 | 2012-08-01 | 郑州宇通客车股份有限公司 | Air flowmeter and engine intake passage assembly using same |
| CN202789236U (en) * | 2012-09-19 | 2013-03-13 | 中联重科股份有限公司渭南分公司 | Air inlet system for engines and pressure stabilizing box thereof |
| CN105372073A (en) * | 2015-12-25 | 2016-03-02 | 中北大学 | High-pressure tumble air intake testing device for engine |
| CN206990216U (en) * | 2017-08-14 | 2018-02-09 | 广西玉柴机器股份有限公司 | Engine pedestal air inlet voltage-stabilizing system |
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Application publication date: 20171121 |
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