CN105067272A - Engine airway test device - Google Patents
Engine airway test device Download PDFInfo
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- CN105067272A CN105067272A CN201510476861.1A CN201510476861A CN105067272A CN 105067272 A CN105067272 A CN 105067272A CN 201510476861 A CN201510476861 A CN 201510476861A CN 105067272 A CN105067272 A CN 105067272A
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- cylinder jacket
- air
- section
- hole
- air intake
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Testing Of Engines (AREA)
Abstract
The invention provides an engine airway test device, which comprises an air intake pipe, a piston, an upper-section cylinder sleeve, a middle-section cylinder sleeve, a lower-section cylinder sleeve, a handle and a base, wherein an installation hole A is formed in the air intake pipe, the lower-section cylinder sleeve, the middle-section cylinder sleeve and the upper-section cylinder sleeve are arranged inside the installation hole A; one end of the upper-section cylinder sleeve is matched with the installation hole A, and the other end extends out of the installation hole A and is provided with a compressing plate; a circle of direct flow air intake holes and a circle of swirl air intake holes are formed in the middle-section cylinder sleeve in the radial direction; the piston is installed in the middle-section cylinder sleeve, the upper end of the piston is connected with one end of the handle, and the other end of the handle extends out of the compressing plate. The cylinder sleeve provided by the invention adopts a three-section split structure, and the processing time and processing cost are saved; the air inlet adopts the design of two rows of air inlets including the direct flow air intake holes and the swirl air intake holes, and the cross section of the airway adopts the equal mass flow design, thereby bringing convenience to the measurement of the air mass flow and flow rotation speed of the air intake pipe, as well as calculation of flow coefficient and swirl rate of the airway.
Description
Technical field
The invention belongs to technical field of engines, especially relates to a kind of engine air flue test unit, is applicable to the engine adopting gas port ventilation.
Background technology
The intake method of available engine has gas port to take a breath and valve scavenging, what most engine adopted is valve scavenging, therefore existing air flue test device is mainly applied to the engine of valve scavenging, and be not suitable for the engine of gas port ventilation, therefore need to develop a kind of engine air flue test unit being applicable to gas port air inlet, and then research port configurations is on the impact of engine air flue performance.
Summary of the invention
In view of this, the invention is intended to propose a kind of engine air flue test unit, and the port configurations of gas port air inlet engine for deliberation is on the impact of engine air flue performance.
For achieving the above object, the technical scheme of the invention is achieved in that
A kind of engine air flue test unit, comprises draft tube, piston, epimere cylinder jacket, stage casing cylinder jacket, hypomere cylinder jacket, handle and base, described draft tube has two air intake openings be interconnected; Described draft tube has A mounting hole, in described mounting hole, be disposed with hypomere cylinder jacket, stage casing cylinder jacket and epimere cylinder jacket from top to bottom; Be provided with base bottom described draft tube, described base have the air hole be interconnected with A mounting hole, described air hole internal fixtion is provided with anemoscope; Described epimere cylinder jacket one end and A mounting hole suitable, the other end stretches out A mounting hole, and be provided with compress dull and stereotyped; The radial direction of described stage casing cylinder jacket offers a circle direct current air admission hole and a coil vortex air admission hole; Be provided with the piston suitable with it in the cylinder jacket of described stage casing, described piston upper end is connected with one end of handle, and the other end of described handle stretches out and compresses flat board; Described compression flat board, draft tube and base are bolted to connection.
Further, described stage casing cylinder jacket comprises seal section, air inlet section and supporting section, is provided with A O-ring seal between described seal section and piston; Described direct current air admission hole and vortex air intake hole are positioned at air inlet section, and described piston external diameter and air inlet section internal diameter suitable; It is outside that described supporting section is set in lower end cylinder jacket, and described hypomere cylinder jacket external diameter and supporting section internal diameter suitable, described hypomere inner diameter of cylinder sleeve and air inlet section internal diameter suitable.
Further, the described central axis of A mounting hole and the central axis upright of air intake opening.
Further, B mounting hole is had along described epimere cylinder jacket top radial direction.
Further, outside the cylinder jacket of described stage casing, B O-ring seal is installed, outside described hypomere cylinder block, C O-ring seal is installed.
Further, the air hole on the internal diameter of described hypomere cylinder jacket and base is suitable.
Further, described piston is connected by threaded engagement with handle.
Further, described base exterior is provided with the induced draft fan be interconnected with air hole.
Further, the cross section of described direct current air admission hole is regular arc, and the cross section in described vortex air intake hole is irregular arc.
Relative to prior art, the engine air flue test unit described in the invention has following advantage: the cylinder jacket described in the invention adopts three sections of Split type structures, has saved process time and processing cost; Air intake opening adopts two row's air intake openings designs, is respectively direct current air intake opening and vortex air intake mouth, and the cross section of air flue such as is at the flow design, can be convenient for measuring air mass flow and the flow rotating speed of air intake duct, and calculate upper airway flow coefficient of discharge and swirl ratio; By moving up and down of piston 4, direct current air intake opening or vortex air intake mouth is made to be positioned at different opening, and then measuring flow rotating speed, obtain the upper airway flow coefficient of discharge under different gas port aperture and swirl ratio.
Accompanying drawing explanation
The accompanying drawing of the part of formation the invention is used to provide the further understanding to the invention, and the schematic description and description of the invention, for explaining the invention, does not form the improper restriction to the invention.In the accompanying drawings:
Fig. 1 is the engine air flue experimental provision structural representation described in the invention embodiment;
Fig. 2 is the structural representation of the stage casing cylinder jacket described in the invention embodiment;
Fig. 3 is the schematic cross-section of the direct current air intake opening described in the invention embodiment;
Fig. 4 is the schematic cross-section of the vortex air intake mouth described in the invention embodiment;
Fig. 5 is the engine air flue experimental provision three-dimensional structure diagram described in the invention embodiment.
Description of reference numerals:
1-handle, 2-compresses flat board, 3-epimere cylinder jacket, 4-piston, 5-draft tube, 6-stage casing cylinder jacket, 7-hypomere cylinder jacket, 8-base, 9-anemoscope, 10-direct current air admission hole, 11-vortex air intake hole, 12-air intake opening, 13-A mounting hole, 14-air hole, 15-B mounting hole, 16-A O-ring seal, 17-B O-ring seal, 18-C O-ring seal, 61-seal section, 62-air inlet section, 63-supporting section.
Embodiment
It should be noted that, when not conflicting, the embodiment in the invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the invention in detail in conjunction with the embodiments.
A kind of engine air flue test unit as shown in Fig. 1 to 5, comprises draft tube 5, piston 4, epimere cylinder jacket 3, stage casing cylinder jacket 6, hypomere cylinder jacket 7, handle 1 and base 8, described draft tube 5 has two air intake openings be interconnected 12; Described draft tube 5 has A mounting hole 13, in described A mounting hole 13, is disposed with hypomere cylinder jacket 7, stage casing cylinder jacket 6 and epimere cylinder jacket 3 from top to bottom; Be provided with base 8 bottom described draft tube 5, described base 8 have the air hole 14 be interconnected with A mounting hole 13, described air hole 14 internal fixtion is provided with anemoscope 9; Described epimere cylinder jacket 3 one end and A mounting hole 13 suitable, the other end stretches out A mounting hole 13, and is provided with and compresses dull and stereotyped 2; The radial direction of described stage casing cylinder jacket 6 offers circle direct current air admission hole 10 and a coil vortex air admission hole 11; Be provided with the piston 4 suitable with it in described stage casing cylinder jacket 6, described piston 4 upper end is connected with one end of handle 1, and the other end of described handle 1 stretches out and compresses dull and stereotyped 2; Described compression flat board 2, draft tube 5 and base 8 are bolted to connection.
Described stage casing cylinder jacket 6 comprises seal section 61, air inlet section 62 and supporting section 63, is provided with A O-ring seal 16 between described seal section 61 and piston 4; Described direct current air admission hole 10 and vortex air intake hole 11 are positioned at air inlet section 62, and described piston 1 external diameter and air inlet section 62 internal diameter suitable; It is outside that described supporting section 63 is set in lower end cylinder jacket 7, and described hypomere cylinder jacket 7 external diameter and supporting section 63 internal diameter suitable, described hypomere cylinder jacket 7 internal diameter and air inlet section 62 internal diameter suitable.
The central axis of described A mounting hole 13 and the central axis upright of air intake opening 12.
B mounting hole 15 is had along described epimere cylinder jacket 3 top radial direction.
Outside described stage casing cylinder jacket 6, B O-ring seal 17 is installed, outside described hypomere cylinder jacket 7, C O-ring seal 18 is installed.
Air hole 14 on the internal diameter of described hypomere cylinder jacket 7 and base 8 is suitable.
Described piston 4 is connected by threaded engagement with handle 1.
Described base 8 outer setting has the induced draft fan be interconnected with air hole 14.
The cross section of described direct current air admission hole 10 is regular arc, and the cross section in described vortex air intake hole 11 is irregular arc.
The course of work of the present embodiment is as follows: first by turning handle 1, the upper-lower position of adjustment piston 4, and then by the aperture moving up and down adjustment direct current air intake opening 10 and vortex air intake mouth 11 of piston 4, now induced draft fan is started working, air is flowed into by the air intake opening 12 of draft tube 5, pass through the pressure of gauge measurement air intake opening 12 and blow vent 14 simultaneously, keep the constant pressure of air intake opening 12 and blow vent 14; Measured the air mass flow rotating speed under different opening by anemoscope 9, then calculate corresponding swirl ratio and coefficient of flow.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the invention.
Claims (9)
1. an engine air flue test unit, it is characterized in that: comprise draft tube (5), piston (4), epimere cylinder jacket (3), stage casing cylinder jacket (6), hypomere cylinder jacket (7), handle (1) and base (8), described draft tube (5) has two air intake openings be interconnected (12); Described draft tube (5) has A mounting hole (13), in described A mounting hole (13), be disposed with hypomere cylinder jacket (7), stage casing cylinder jacket (6) and epimere cylinder jacket (3) from top to bottom; Described draft tube (5) bottom is provided with base (8), described base (8) has the air hole (14) be interconnected with A mounting hole (13), described air hole (14) internal fixtion is provided with anemoscope (9); Described epimere cylinder jacket (3) one end and A mounting hole (13) suitable, the other end stretches out A mounting hole (13), and is provided with and compresses dull and stereotyped (2); The radial direction in described stage casing cylinder jacket (6) offers a circle direct current air admission hole (10) and a coil vortex air admission hole (11); The piston (4) suitable with it is installed in described stage casing cylinder jacket (6), described piston (4) upper end is connected with one end of handle (1), and the other end of described handle (1) stretches out and compresses dull and stereotyped (2); Described compression dull and stereotyped (2), draft tube (5) and base (8) are bolted to connection.
2. engine air flue test unit according to claim 1, it is characterized in that: described stage casing cylinder jacket (6) comprises seal section (61), air inlet section (62) and supporting section (63), is provided with A O-ring seal (16) between described seal section (61) and piston (4); Described direct current air admission hole (10) and vortex air intake hole (11) are positioned at air inlet section (62), and described piston (1) external diameter and air inlet section (62) internal diameter suitable; It is outside that described supporting section (63) is set in lower end cylinder jacket (7), and described hypomere cylinder jacket (7) external diameter and supporting section (63) internal diameter suitable, described hypomere cylinder jacket (7) internal diameter and air inlet section (62) internal diameter suitable.
3. engine air flue test unit according to claim 1, is characterized in that: the central axis of described A mounting hole (13) and the central axis upright of air intake opening (12).
4. engine air flue test unit according to claim 1, is characterized in that: have B mounting hole (15) along described epimere cylinder jacket (3) top radial direction.
5. engine air flue test unit according to claim 1, it is characterized in that: B O-ring seal (17) is installed outside described stage casing cylinder jacket (6), outside described hypomere cylinder jacket (7), C O-ring seal (18) is installed.
6. engine air flue test unit according to claim 1, is characterized in that: the air hole (14) on the internal diameter of described hypomere cylinder jacket (7) and base (8) is suitable.
7. engine air flue test unit according to claim 1, is characterized in that: described piston (4) is connected by threaded engagement with handle (1).
8. engine air flue test unit according to claim 1, is characterized in that: described base (8) outer setting has the induced draft fan be interconnected with air hole (14).
9. engine air flue test unit according to claim 1, is characterized in that: the cross section of described direct current air admission hole (10) is regular arc, and the cross section of described vortex air intake hole (11) is irregular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476861.1A CN105067272B (en) | 2015-08-06 | 2015-08-06 | A kind of engine air flue experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476861.1A CN105067272B (en) | 2015-08-06 | 2015-08-06 | A kind of engine air flue experimental rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105067272A true CN105067272A (en) | 2015-11-18 |
| CN105067272B CN105067272B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510476861.1A Active CN105067272B (en) | 2015-08-06 | 2015-08-06 | A kind of engine air flue experimental rig |
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| CN (1) | CN105067272B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607324A (en) * | 2017-09-23 | 2018-01-19 | 中北大学 | A kind of opposed-piston engine scavenging process streaming flow test device |
Citations (6)
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| US20060173607A1 (en) * | 2003-03-03 | 2006-08-03 | Noritaka Matsuo | Engine suction air flow rate measuring device |
| CN101655413A (en) * | 2009-09-29 | 2010-02-24 | 天津大学 | Testing device for quickly detecting flow property parameters of air passage of internal combustion engine |
| CN101694416A (en) * | 2009-08-21 | 2010-04-14 | 重庆长安汽车股份有限公司 | Air way of engine cylinder head and device for detecting and simulating performance of combustion chamber |
| CN202101853U (en) * | 2011-03-04 | 2012-01-04 | 奇瑞汽车股份有限公司 | Constant pressure difference and flow-stabilizing air channel testing device |
| CN103411776A (en) * | 2013-07-02 | 2013-11-27 | 中国兵器工业集团第七0研究所 | Air flue test table device |
| CN104316325A (en) * | 2014-08-15 | 2015-01-28 | 安徽江淮汽车股份有限公司 | Simulated cylinder sleeve for engine airway |
-
2015
- 2015-08-06 CN CN201510476861.1A patent/CN105067272B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060173607A1 (en) * | 2003-03-03 | 2006-08-03 | Noritaka Matsuo | Engine suction air flow rate measuring device |
| CN101694416A (en) * | 2009-08-21 | 2010-04-14 | 重庆长安汽车股份有限公司 | Air way of engine cylinder head and device for detecting and simulating performance of combustion chamber |
| CN101655413A (en) * | 2009-09-29 | 2010-02-24 | 天津大学 | Testing device for quickly detecting flow property parameters of air passage of internal combustion engine |
| CN202101853U (en) * | 2011-03-04 | 2012-01-04 | 奇瑞汽车股份有限公司 | Constant pressure difference and flow-stabilizing air channel testing device |
| CN103411776A (en) * | 2013-07-02 | 2013-11-27 | 中国兵器工业集团第七0研究所 | Air flue test table device |
| CN104316325A (en) * | 2014-08-15 | 2015-01-28 | 安徽江淮汽车股份有限公司 | Simulated cylinder sleeve for engine airway |
Non-Patent Citations (2)
| Title |
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| 刘长振等: "双对置二冲程柴油机性能分析方法探讨", 《柴油机》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607324A (en) * | 2017-09-23 | 2018-01-19 | 中北大学 | A kind of opposed-piston engine scavenging process streaming flow test device |
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| Publication number | Publication date |
|---|---|
| CN105067272B (en) | 2017-06-16 |
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