CN108979912A - A kind of air-intake of combustion engine tumble flow measurement structure - Google Patents
A kind of air-intake of combustion engine tumble flow measurement structure Download PDFInfo
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- CN108979912A CN108979912A CN201810939114.0A CN201810939114A CN108979912A CN 108979912 A CN108979912 A CN 108979912A CN 201810939114 A CN201810939114 A CN 201810939114A CN 108979912 A CN108979912 A CN 108979912A
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- Prior art keywords
- cylinder
- socketed
- tumble flow
- combustion engine
- connecting shaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10373—Sensors for intake systems
- F02M35/10386—Sensors for intake systems for flow rate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10373—Sensors for intake systems
- F02M35/1038—Sensors for intake systems for temperature or pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of air-intake of combustion engine tumble flow measurement structures, including cylinder, the cylinder right end is installed on motor by fixed frame, the motor front end is to being connected to connecting shaft, the connecting shaft middle-end is socketed with mounting rack, the mounting rack middle-end, which is worn, is connected to rotary shaft, the rotary shaft outer end is socketed with bearing, the bearing front end, which is socketed, is installed on turbine, speed probe is installed in the rotary shaft, the turbine front end surface is socketed with end cap, the invention is more stable by corresponding turbine design, corresponding vortex is formed when tumble flow driving turbine is correspondingly rotated reduce take corresponding influence on tumble flow, it is installed on pressure gauge and swirl momentum meter respectively in the inboard of cylinder and outside simultaneously, convenient for cylinder inboard the intensity of pressure and corresponding swirl momentum measured accordingly, it is accurate that promotion accordingly measures Property, structure design is close reasonable, has very strong practicability, is suitble to promote.
Description
Technical field
The invention belongs to technical field of internal combustion engines, and in particular to a kind of air-intake of combustion engine tumble flow measurement structure.
Background technique
Currently, the increasingly in short supply and atmosphere pollution with world energy sources aggravates, motor vehicle fuel utilization rate, drop how are improved
Pollution in low exhaust gas discharge just becomes the highly important project of one-part.Research has shown that, the shape of engine inlets with start
There are certain relationships between the dynamic property of machine, economy and exhaust emissions index, choose the air intake duct of an optimization
Corresponding effect is obtained in all respects.Therefore, the measuring device of air-intake of combustion engine tumble flow is come into being, by measuring air intake duct whirlpool
Intensity of flow preferably goes out optimal air intake duct scheme, so that it may positive improvement is carried out to original design.In recent years, in gasoline
Discovery tumble flow plays pernicious gas ingredient in raising fuel availability, the few tail gas of a surname in machine lean burn and stratified combustion research
Important function, by tumble flow measurement be introduced into Port Steady Flow measurement in can further improve engine inlets design state it is existing
What air intake duct measurement device was designed both for vortex intensity measurement, therefore only it is capable of measuring the tumble flow component of a certain constant bearing
Intensity can not objectively respond tumble flow vector moment orientation and Tumble intensity size, and the air intake duct for different Tumble intensities often occur is logical
It crosses measurement, calculate the air intake duct for obtaining identical power performance and tail gas index or identical Tumble intensity by measuring, calculating
And the case where obtaining different dynamic performance and tail gas index, it can not determine optimal air intake duct.
A kind of measuring device of air-intake of combustion engine tumble flow disclosed application No. is 200720095075.8 to this, including setting
In cylinder, the impeller rotating shaft and speed probe of impeller are installed, rotatable support shaft is fixed on cylinder, is propped up
The central axes of support axis are vertical with cylinder central axes and belong to same plane；The central axes of impeller rotating shaft and the central axes of support shaft
Perpendicular, intersection point is overlapped with the intersection point of central axis of air cylinder and the central axes of support shaft；Axle sleeve is mutually fixed with support shaft, support shaft
When rotation, the central axis of axle sleeve is _ central axes of above-mentioned impeller rotating shaft always in the cylinder where axis, with support shaft axis
The perpendicular flat in-plane moving of line；Tachometer generator is mounted in support shaft；One end of support shaft equipped with angular transducer and
Driving motor.Foregoing invention can measure the Tumble intensity of direction vector corresponding to this rotation angle, to accurately obtain
Accurate performance of the air-intake of combustion engine tumble flow on a certain direction vector can determine most preferably setting for internal combustion engine inlet by calculating
Meter scheme.
But limitation below is still had in scheme:
1, corresponding single impeller or bilobed wheel are easy to cause to influence accordingly on the tumble flow accordingly entered in cylinder；
2, the momentum of pressure and vortex in cylinder can not be measured accordingly.
Summary of the invention
The purpose of the present invention is to provide a kind of air-intake of combustion engine tumble flow measurement structures, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of air-intake of combustion engine tumble flow measurement structure, including
Cylinder, the cylinder right end are installed on motor by fixed frame, and the motor front end is socketed to connecting shaft, the connecting shaft middle-end is connected to
There is mounting rack, the mounting rack middle-end, which is worn, is connected to rotary shaft, and the rotary shaft outer end is socketed with bearing, and the bearing front end covers
It connects and is installed on turbine, speed probe is installed in the rotary shaft, the turbine front end surface is socketed with end cap, the company
Axis left distal end is socketed with sleeve and sleeve outer end is socketed with angular transducer, and cylinder inboard bottom end is equipped with pressure sensing
The internal combustion engine cover in device, the cylinder and outside is fixedly linked, and is installed on swirl momentum meter on the outside of the cylinder.
Preferably, the speed probe and pressure sensor avris are installed with the specification one of lead and respective lead
It causes.
Preferably, the diameter of section length of the connecting shaft is located at cylinder axis line position and connecting shaft is greater than cutting for rotary shaft
Face diameter length.
Preferably, the rotary shaft is worn to connect and is fixed on the reserved through-hole of connecting shaft middle-end, and the through-hole is located in connecting shaft
End.
Preferably, there are two the turbine is set and the diameter of section of turbine is less than the length of connecting shaft.
Preferably, pass through the fixed outside for being installed in cylinder of rivet on the outside of the swirl momentum meter.
Technical effect and advantage of the invention: the invention is more stable by corresponding turbine design, drives in tumble flow
Form corresponding vortex when turbine is correspondingly rotated and reduce and take corresponding influence on tumble flow, at the same in the inboard of cylinder and
Outside is installed on pressure gauge and swirl momentum meter respectively, convenient for cylinder inboard the intensity of pressure and corresponding swirl momentum into
The corresponding measurement of row promotes the accuracy accordingly measured, and structure design is close reasonable, has very strong practicability, is suitble to promote.
Detailed description of the invention
Fig. 1 is schematic cross-sectional view of the invention；
Fig. 2 is that the present invention removes the inboard structural schematic diagram after internal combustion engine cover；
Fig. 3 is overlooking structure diagram of the invention.
In figure: 1 cylinder, 2 motors, 3 mounting racks, 4 rotary shafts, 5 connecting shafts, 6 angular transducers, 7 leads, 8 pressure sensors,
9 turbines, 10 end caps, 11 internal combustion engine covers, 12 swirl momentum meters, 13 bearings, 14 speed probes.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of air-intake of combustion engine tumble flow measurement structure as shown in Figs. 1-3, including cylinder 1, the gas
1 right end of cylinder is installed on motor 2 by fixed frame, and 2 front end of motor is socketed with installation to connecting shaft 5,5 middle-end of connecting shaft is connected to
Frame 3,3 middle-end of mounting rack, which is worn, is connected to rotary shaft 4, and 4 outer end of rotary shaft is socketed with bearing 13, and 13 front end of bearing is equal
Socket is installed on turbine 9, speed probe 14 is installed in the rotary shaft 4,9 front end surface of turbine is socketed with end cap
10,5 left distal end of connecting shaft is socketed with sleeve and sleeve outer end is socketed with angular transducer 6, and the inboard bottom end of the cylinder 1 is set
There is pressure sensor 8, the cylinder 1 and the internal combustion engine cover 11 in outside are fixedly linked, and install vortical flows on the outside of the cylinder 1
Meter 12.
Specifically, the speed probe 14 is installed with the rule of lead 7 and respective lead 7 with 8 avris of pressure sensor
Lattice are consistent, and the speed probe 14 is electrical with the tachymeter in outside and pressure gauge respectively by lead 7 with pressure sensor 8
Connection.
Specifically, the connecting shaft 5 is located at the axis line position of cylinder 1 and the diameter of section length of connecting shaft 5 is greater than rotary shaft 4
Diameter of section length.
It is fixed on the reserved through-hole of 5 middle-end of connecting shaft specifically, the rotary shaft 4 wears to connect, the through-hole is located at connecting shaft 5
Middle-end.
Specifically, the turbine 9 set there are two and turbine 9 diameter of section be less than connecting shaft 5 length.
Specifically, passing through the fixed outside for being installed in cylinder 1 of rivet on the outside of the swirl momentum meter 12.
The invention when in use, flows into from corresponding air inlet and corresponding turbine 9 is driven to be rotated accordingly, turbine 9
Rotation drive socket rotary shaft 4 rotated accordingly, speed probe 14 cooperation outside tachymeter to turbine 9
Velocity of rotation is measured accordingly, while the pressure sensor 8 of 1 inboard of cylinder and the swirl momentum meter 12 in outside are respectively to gas
The swirl momentum of the inboard pressure of cylinder 1 and inboard is measured accordingly, is convenient for more accurate calculating, while being true
Fixed corresponding optimal case drives inboard connecting shaft 5 to be rotated accordingly by motor 2, thus to the inboard not Tongfang of cylinder 1
To air inlet tumble flow measured accordingly, structure design is close reasonable, has very strong practicability, is suitble to promote.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (6)
1. a kind of air-intake of combustion engine tumble flow measurement structure, including cylinder (1), it is characterised in that: cylinder (1) right end passes through solid
Determine frame to be installed on motor (2), to being connected to connecting shaft (5), connecting shaft (5) middle-end is socketed with mounting rack for motor (2) front end
(3), mounting rack (3) middle-end, which is worn, is connected to rotary shaft (4), and rotary shaft (4) outer end is socketed with bearing (13), the bearing
(13) front end, which is socketed, is installed on turbine (9), is installed on speed probe (14) on the rotary shaft (4), before the turbine (9)
End end face is socketed with end cap (10), and connecting shaft (5) left distal end is socketed with sleeve and sleeve outer end is socketed with angle sensor
Device (6), the inboard bottom end of the cylinder (1) are equipped with pressure sensor (8), the internal combustion engine cover (11) of the cylinder (1) and outside
It is fixedly linked, is installed on swirl momentum meter (12) on the outside of the cylinder (1).
2. a kind of air-intake of combustion engine tumble flow measurement structure according to claim 1, it is characterised in that: the speed probe
(14) lead (7) is installed with pressure sensor (8) avris and the specification of respective lead (7) is consistent.
3. a kind of air-intake of combustion engine tumble flow measurement structure according to claim 1, it is characterised in that: connecting shaft (5) position
In cylinder (1) axis line position and connecting shaft (5) diameter of section length be greater than rotary shaft (4) diameter of section length.
4. a kind of air-intake of combustion engine tumble flow measurement structure according to claim 1, it is characterised in that: the rotary shaft (4)
It wears to connect and be fixed on the reserved through-hole of connecting shaft (5) middle-end, the through-hole is located at the middle-end of connecting shaft (5).
5. a kind of air-intake of combustion engine tumble flow measurement structure according to claim 1, it is characterised in that: the turbine (9) sets
There are two and turbine (9) diameter of section be less than connecting shaft (5) length.
6. a kind of air-intake of combustion engine tumble flow measurement structure according to claim 1, it is characterised in that: the swirl momentum meter
(12) outside passes through the fixed outside for being installed in cylinder (1) of rivet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939114.0A CN108979912A (en) | 2018-08-17 | 2018-08-17 | A kind of air-intake of combustion engine tumble flow measurement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810939114.0A CN108979912A (en) | 2018-08-17 | 2018-08-17 | A kind of air-intake of combustion engine tumble flow measurement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108979912A true CN108979912A (en) | 2018-12-11 |
Family
ID=64554203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810939114.0A Pending CN108979912A (en) | 2018-08-17 | 2018-08-17 | A kind of air-intake of combustion engine tumble flow measurement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108979912A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2624202Y (en) * | 2003-04-30 | 2004-07-07 | 天津大学 | Swirl momentum meter |
| CN101038238A (en) * | 2007-02-09 | 2007-09-19 | 赵铁良 | Test device for petrol engine duct test tumble flow |
| CN201031751Y (en) * | 2007-01-26 | 2008-03-05 | 天津内燃机研究所 | Measurement mechanism of internal-combustion engines air-intake rolling flow |
| CN101187594A (en) * | 2007-12-21 | 2008-05-28 | 天津大学 | Device for measuring internal combustion engine in-cylinder tumble flow or vortex |
| CN201355306Y (en) * | 2008-12-26 | 2009-12-02 | 上海内燃机研究所 | Inlet tumble measuring converter for engine air-flue test bed |
| CN105372073A (en) * | 2015-12-25 | 2016-03-02 | 中北大学 | High-pressure tumble air intake testing device for engine |
| CN205426525U (en) * | 2015-12-25 | 2016-08-03 | 中北大学 | Poor air flue of engine total head rolls a class test device |
| CN108051222A (en) * | 2018-01-02 | 2018-05-18 | 天津大学 | A kind of turbulence form controllable device for fast press |
-
2018
- 2018-08-17 CN CN201810939114.0A patent/CN108979912A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2624202Y (en) * | 2003-04-30 | 2004-07-07 | 天津大学 | Swirl momentum meter |
| CN201031751Y (en) * | 2007-01-26 | 2008-03-05 | 天津内燃机研究所 | Measurement mechanism of internal-combustion engines air-intake rolling flow |
| CN101038238A (en) * | 2007-02-09 | 2007-09-19 | 赵铁良 | Test device for petrol engine duct test tumble flow |
| CN101187594A (en) * | 2007-12-21 | 2008-05-28 | 天津大学 | Device for measuring internal combustion engine in-cylinder tumble flow or vortex |
| CN201355306Y (en) * | 2008-12-26 | 2009-12-02 | 上海内燃机研究所 | Inlet tumble measuring converter for engine air-flue test bed |
| CN105372073A (en) * | 2015-12-25 | 2016-03-02 | 中北大学 | High-pressure tumble air intake testing device for engine |
| CN205426525U (en) * | 2015-12-25 | 2016-08-03 | 中北大学 | Poor air flue of engine total head rolls a class test device |
| CN108051222A (en) * | 2018-01-02 | 2018-05-18 | 天津大学 | A kind of turbulence form controllable device for fast press |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |
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| RJ01 | Rejection of invention patent application after publication |