CN103161766A - Air compressor of supercharged engine - Google Patents
Air compressor of supercharged engine Download PDFInfo
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- CN103161766A CN103161766A CN2013100688229A CN201310068822A CN103161766A CN 103161766 A CN103161766 A CN 103161766A CN 2013100688229 A CN2013100688229 A CN 2013100688229A CN 201310068822 A CN201310068822 A CN 201310068822A CN 103161766 A CN103161766 A CN 103161766A
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Abstract
The invention discloses an air compressor of a supercharged engine. The air compressor of the supercharged engine comprises the air compressor and a modulated displacement engine. The air compressor is connected with the modulated displacement engine through guide tubes. The air compressor comprises an air compressor shell. An air inlet and a plurality of air outlets are formed in the air compressor shell. Air flows into the modulated displacement engine through the air outlets. A rotating shaft is arranged in the center of the air compressor shell and provided with an impeller. Diffusers are arranged on the periphery of the air compressor shell, and each diffuser corresponds to one air outlet. The air compressor of the supercharged engine has the advantages that the air compressor arrangement structure with two air outlets shifts surge limit to a region with a lower flow, the air compressor with the arrangement equivalently enables a plurality of air compressors to be arranged on the same shell body, the whole structure is simplified, a dividing wall separates the air, one of the air outlets is closed when the flow is low, and efficiency of the air compressor is improved.
Description
Technical field
The present invention relates to air compressor, be specifically related to the air compressor in a kind of supercharged engine.
Background technique
Present known technology, traditional boosting internal combustion engine, for example engine driven supercharging or turbosupercharged engine, utilize the air inlet of an air compressor combustion motor to carry out supercharging.Improve charge air flow density by supercharging, motor imports and burnt more air and fuel oil, the output that has therefore improved internal-combustion engine.This gas compressor is centrifugal-flow compressor, and its impeller can be around the rotation of axial axis, and the air that is used for importing with axial direction is pressed onto the air compressor peripheral edge portion, and the Diffuser that is positioned at air outlet on outer marginal circumference and its downstream is pressure with the kinetic transformation of air.Diffuser is a kind of technology for centrifugal air compressor.Air is to flow at a high speed Diffuser and to slow down to promote air pressure in Diffuser more subsequently.This Diffuser includes fixing blade (or claiming stator) provides efficient energy conversion.Diffuser can be also vaneless structural type in addition.
Present known technology, the operating range of air compressor is limited by choking phenomenon and the air-flow surging phenomenon when low discharge of air-flow when high flow capacity.Surge is a kind of unsettled operating mode, should avoid as far as possible.Steady working condition zone in air compressor Maipu, when the relief opening air-flow is hindered, air pressure can increase to overcome this obstruction.But when unstable period, larger resistance also can cause the decline of air pressure simultaneously.The air of the more high pressure in giving the gas passage can backflow rapidly through air compressor.But along with the elimination of this pressure, air compressor can be rebuild pressure, impels air-flow to travel forward, and the reverse of this constant gas has caused surging phenomenon.Common technological means is to avoid blocking generation with surge condition by the coupling of engine operation point and supercharging gas.But technological means also faces the challenge, and particularly in the petrol engine of closure was arranged, the difference of its charge flow rate when high and low operating mode was very large.Have the manufacturing process in many steps in the air compressor of auxiliary blade.
Chinese patent CN202560518U discloses a kind of air compressor, and described air compressor comprises air compressor body, heat conduction cover and pipeline, is provided with exhaust outlet on described air compressor body, the corresponding described exhaust outlet of described heat conduction cover one end, and the other end is connected with described pipeline.The utility model is simple in structure, the corresponding described air compressor body exhaust outlet of heat conduction cover one end, and the other end is connected with described pipeline, hot air can be outside pipeline be expelled to machine room, the indoor intensification of machine room will be slowed down, and prevent that motor from moving in hot environment, increase motor working life.Compare with the application, herewith all there are larger difference in the concrete structure of patent and utilization field.
Chinese patent CN201021234 discloses a kind of air compressor device for engine, it comprises the air compressor air intake pipe, described air compressor air intake pipe is connected with the suction tude of motor, described air compressor air intake pipe is connected with the air outlet slit pipe of the pressurized machine of motor, by pressurized machine, air is compressed, thereby can or increase under the condition of rotating speed at oversize piston cylinder diameter not, the air of larger discharge capacity is provided, to satisfy automobile air suspension system, the demand of the annexes such as pneumatic car door to air quantity, simple in structure, save vehicle fuel, reduced the user cost of air compressor.This patent simply arranges to improve fuel efficiency by what described air compressor air intake pipe was connected with the air outlet slit pipe of engine supercharger, this and the application comprise the structures such as running shaft, impeller, Diffuser to avoid surging phenomenon, and there is significantly difference in both on structure and technical problem to be solved.
Summary of the invention
For the problems referred to above that the air compressor of existing motor exists, the invention provides the air compressor in a kind of supercharged engine that can effectively prevent surge.
The technological scheme that the present invention adopts for achieving the above object is:
Air compressor in a kind of supercharged engine, comprise air compressor and variable-displacement engine, described air compressor is connected with described variable-displacement engine by conduit, described air compressor comprises a compressor casing, described compressor casing is provided with a suction port and a plurality of relief opening, all gas flows into described variable-displacement engine by a plurality of described relief openings, described compressor casing center is provided with on a running shaft and described running shaft impeller is installed, described compressor casing peripheral disposition has Diffuser, the corresponding described relief opening of each described Diffuser.
Air compressor in above-mentioned supercharged engine wherein, is installed on dividing plate on described impeller, and described dividing plate imports air-flow the suction port of described Diffuser.
Air compressor in above-mentioned supercharged engine, wherein, the partitioning wall that relative described Diffuser is located between them is cut apart.
Air compressor in above-mentioned supercharged engine wherein, is surrounded on described running shaft direction stator blade is installed on described Diffuser.
Air compressor in above-mentioned supercharged engine, wherein, described variable-displacement engine comprises a plurality of cylinder block, described cylinder block is corresponding described relief opening respectively.
Air compressor in above-mentioned supercharged engine, wherein, the impeller blade of each described impeller is provided with a groove that radially extends internally, and the radially extension of described partitioning wall is inserted in described groove.
Air compressor in above-mentioned supercharged engine, wherein, described variable-displacement engine comprises a plurality of valves, described valve is located between described cylinder block and described relief opening.
Owing to having adopted above-mentioned technology, the good effect that technique scheme compared with prior art has is:
The air compressor layout of two relief openings has been displaced to surge limit than low flow volume region, and the air compressor of this layout is equivalent to a plurality of air compressors are arranged in same housing has simplified overall structure; Partitioning wall when low discharge, is closed airflow diversion for one in the air outlet, and the efficient of air compressor improves.
Description of drawings
Fig. 1 is the longitudinal sectional view of the air compressor in a kind of supercharged engine of the present invention;
Fig. 2 is the axial sectional view of the air compressor in a kind of supercharged engine of the present invention;
Fig. 3 is the partial sectional view of the air compressor that is provided with dividing plate of the air compressor in a kind of supercharged engine of the present invention;
Fig. 4 is the partial sectional view of the air compressor that is provided with partitioning wall of the air compressor in a kind of supercharged engine of the present invention;
Fig. 5 is the axial view of the air compressor in a kind of supercharged engine of the present invention;
Fig. 6 is vertical figure of the air compressor in a kind of supercharged engine of the present invention;
Fig. 7 is the connection diagram of the variable-displacement engine of the air compressor in a kind of supercharged engine of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but not as limiting to the invention.
The longitudinal sectional view of the air compressor in a kind of supercharged engine of the present invention as shown in Figure 1, the impeller 3 of a running shaft 2, an air compressor and impeller blade 4 are fixed with each other and all be positioned at compressor casing 5.Running shaft 2 can be by any energy drives, preferably the turbine (not shown) of turbo machine.Be provided with the first Diffuser 6 and the second Diffuser 7 in compressor casing 5.Two Diffusers are isolated wall 8 and cut apart.The first Diffuser 6 and the second Diffuser 7 are provided with stator blade 9.By suction port 10, charge air flow 11 flows out compressor casing 5 rapidly by impeller 3.When charge air flow 11 is left impeller blade 4, it is divided into two stocks and props up air-flow 12, and the first air stream 13 flows into the first Diffusers 6 and the second air stream 14 flow into the second Diffuser 7 thus.
The axial sectional view of the air compressor in a kind of supercharged engine of the present invention as shown in Figure 2, the impeller blade 4 on impeller 3 is positioned at the center of compressor casing 5, is arranging the first Diffuser 6 and the second Diffuser 7 at stator blade 9 excircles.The first Diffuser 6 is corresponding with first row gas port 15, and the first air stream 13 flows out from first row gas port 15.The second Diffuser 7 is corresponding with second row gas port 16, and the second air stream 14 flows out from second row gas port 16.Show also in Fig. 2 that relief opening is distributed in the diverse location of compressor casing 5 peripheral circumferential except another advantage of the present invention.Two relief openings can be placed on the arbitrary position of circumference and easily realization and the corresponding relation of conduit, pipeline, suction port realize that simultaneously the best of air compressor 1 assembles.
Further, when the needs low-flow, due to some cylinder deactivation or the engine charge pressure decreased of variable-displacement engine 43, second row gas port 16 is closed.When blocking all air-flows by the first Diffuser 6, almost do not have air-flow to pass through the second Diffuser 7, thus the first air stream 13 in Diffuser and charge air flow 11 equity substantially, and much higher when second row gas port 16 is arranged.The air-flow of change has been avoided the surging phenomenon of low-pressure admission air-flow 11 by the first Diffuser 6, simultaneously lower with the surge of air compressor 1 restriction.
The partial sectional view of the air compressor that is provided with dividing plate of the air compressor in a kind of supercharged engine of the present invention as shown in Figure 3, air compressor 1 have a dividing plate 18 divided shown in impeller blade 4.Impeller 3, dividing plate 18 and impeller blade 4 are all to be formed by the metallic material casting.Dividing plate 18 marks off the first air flue 19 and the second air flue 20 on impeller 3.This has caused charge air flow 11 to be split into the first charge air flow 22 and the second charge air flow 23 in inner diameter zone 21.In outer diameter zone 24, the first charge air flow 22 and the second charge air flow 23 are sent into respectively in the first Diffuser 6 and the second Diffuser 7 together with the second inner diameter zone 25 of dividing plate 18 and partitioning wall 8.
The partial sectional view of the air compressor that is provided with partitioning wall of the air compressor in a kind of supercharged engine of the present invention, extend inward into impeller blade 4 about partitioning wall 8 as shown in Figure 4, and each has a groove 28.Extension 29 and the groove 28 of partitioning wall 8 are complementary.To similar shown in Fig. 3,29 inner diameter zone 21 is split into the first charge air flow 22 and the second charge air flow 23 to charge air flow 11 in the extension.
Air compressor in a kind of supercharged engine of the present invention as illustrated in Figures 5 and 6, air compressor 1 is provided with the impeller 3 with impeller blade 4 and is positioned at compressor casing 5.The first Diffuser 6 and the second Diffuser 7 are positioned at the same position of compressor casing 5 circumference.Its spatial position roughly as shown in Figure 5, but structure is slightly different.Be fixed blade 9 of impeller 3 surrounds, and is arranged between the first Diffuser 6 and the second Diffuser 7.The first Diffuser 6 is corresponding with second row gas port 16, and the second air stream 14 flows out from here.The second Diffuser 7 is corresponding with first row gas port 15, and the first air stream 13 flows out from here.First row gas port 15 and second row gas port 16 are preferably mutually opposed in the axial direction.The first Diffuser 6 and the second Diffuser 7 extend respectively half circumference nearly.Area ratio can change by maximum airflow required according to Diffuser.
The connection diagram of the variable-displacement engine of the air compressor in a kind of supercharged engine of the present invention as shown in Figure 7, variable-displacement engine 43 comprises that the first cylinder block 44 and the second cylinder block 45, the second cylinder block 45 can cylinder deactivations.A turbo machine pressurized machine 46 comprises turbine 47 and air compressor 1, and air compressor 1 drives by turbine 47.Air compressor 1 comprises first row gas port 15, and this relief opening is connected with gas the first cylinder group 44 with the first conduit 50 by air-flow, and second row gas port 16 is connected with the second cylinder block 45 with the second conduit 52 by air-flow.The first valve 53 is positioned at the first conduit 50 and the second valve 54 is positioned at the second conduit 52.The first valve 53 and the second valve 54 can be controlled separately and distribute air-flow.Exhaust airstream enters gas exhaust manifold 55 by the turbine 47. of turbosupercharger 46 from the first cylinder block 44 and the second cylinder block 45
Further, when the second cylinder block 45 cylinder deactivation, all air-flows in the such air compressor 1 of the air-flow automatic-diversion closure in the second conduit 52 all flow through the first conduit 50 by first row gas port 15 and all enter in the first cylinder block 44.Utilize the first valve 53 and the second valve 54 to control the transmitting procedure that air-flow by the first conduit 50 and the second conduit 52 makes air-flow held stationary when the second cylinder block 45 runnings and cylinder deactivation.The first valve 53 shown in Fig. 7 separates with variable-displacement engine 43 with the second valve 54.But the first valve 53 and the second valve 54 may be also air inlet and/or the outlet valve of variable-displacement engine 43.
Further variable-displacement engine 43 is four cylinder engines, and wherein two cylinders can cylinder deactivation.This invention is applicable to any variable-displacement engine, comprises any multi-cylinder engine that can cylinder deactivation.Foregoing invention can be used on any internal-combustion engine, comprise beyond variable-displacement engine can cylinder deactivation motor, so the air flow rate in the operating range of motor be greater than can conventional compressor provide by surge and the flow that dams and limit.
Further, therefore disclose simultaneously a kind of about the system and method by two adjustor coordination control engine racing speed: slow-speed governor and high-speed regulator slow-speed governor preferably closure and high-speed regulator preferably one can affect the ignition system of a little saying timing.Slow-speed governor is based on the idle capacity requirement and required racing speed are controlled; High-speed regulator is based on the idle capacity requirement and actual racing speed are controlled.In addition, two regulators are also based on the margin of power and actual power deposit.Power reserve and high-speed regulator its during in configuration the ratio of the actual output of motor and the output of motor ideal relevant.
Further, we will be appreciated that above-mentioned two relief opening air compressors, and compressor comprises the extra relief opening that is connected with Diffuser.Can close according to one or more relief opening of invention.This also just provides a kind of and can increase airflow range by compressor and reach the advantage of being avoided surge.
The above only is preferred embodiment of the present invention, not thereby limits claim of the present invention, so the equivalent structure that all utilizations specification of the present invention and diagramatic content are made changes, all is included in protection scope of the present invention.
Claims (7)
1. the air compressor in a supercharged engine, it is characterized in that, comprise air compressor and variable-displacement engine, described air compressor is connected with described variable-displacement engine by conduit, described air compressor comprises a compressor casing, described compressor casing is provided with a suction port and a plurality of relief opening, all gas flows into described variable-displacement engine by a plurality of described relief openings, described compressor casing center is provided with on a running shaft and described running shaft impeller is installed, described compressor casing peripheral disposition has Diffuser, the corresponding described relief opening of each described Diffuser.
2. the air compressor in supercharged engine as claimed in claim 1, is characterized in that, be installed on dividing plate on described impeller, described dividing plate imports air-flow the suction port of described Diffuser.
3. the air compressor in supercharged engine as claimed in claim 1, is characterized in that, the partitioning wall that relative described Diffuser is located between them is cut apart.
4. the air compressor in supercharged engine as claimed in claim 1, is characterized in that, is surrounded on described running shaft direction on described Diffuser stator blade is installed.
5. the air compressor in supercharged engine as claimed in claim 1, is characterized in that, described variable-displacement engine comprises a plurality of cylinder block, and described cylinder block is corresponding described relief opening respectively.
6. the air compressor in supercharged engine as claimed in claim 3, is characterized in that, the impeller blade of each described impeller is provided with a groove that radially extends internally, and the radially extension of described partitioning wall is inserted in described groove.
7. the air compressor in supercharged engine as claimed in claim 5, is characterized in that, described variable-displacement engine comprises a plurality of valves, and described valve is located between described cylinder block and described relief opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100688229A CN103161766A (en) | 2013-03-04 | 2013-03-04 | Air compressor of supercharged engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100688229A CN103161766A (en) | 2013-03-04 | 2013-03-04 | Air compressor of supercharged engine |
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| Publication Number | Publication Date |
|---|---|
| CN103161766A true CN103161766A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100688229A Pending CN103161766A (en) | 2013-03-04 | 2013-03-04 | Air compressor of supercharged engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770452A (en) * | 2017-06-28 | 2020-02-07 | 株式会社Ihi | Centrifugal compressor |
| CN116591971A (en) * | 2023-07-17 | 2023-08-15 | 西北工业大学 | Double-channel centrifugal compressor with high-low pressure ratio |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6651431B1 (en) * | 2002-08-28 | 2003-11-25 | Ford Global Technologies, Llc | Boosted internal combustion engines and air compressors used therein |
| CN101303029A (en) * | 2008-06-10 | 2008-11-12 | 寿光市康跃增压器有限公司 | Turbocharger compressor apparatus for compressing inflammable mixture gas |
| CN201176893Y (en) * | 2008-04-11 | 2009-01-07 | 广西玉柴机器股份有限公司 | Supercharger structure of compressor |
| JP2009167938A (en) * | 2008-01-17 | 2009-07-30 | Toyota Motor Corp | Turbocharger for internal combustion engine |
-
2013
- 2013-03-04 CN CN2013100688229A patent/CN103161766A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6651431B1 (en) * | 2002-08-28 | 2003-11-25 | Ford Global Technologies, Llc | Boosted internal combustion engines and air compressors used therein |
| JP2009167938A (en) * | 2008-01-17 | 2009-07-30 | Toyota Motor Corp | Turbocharger for internal combustion engine |
| CN201176893Y (en) * | 2008-04-11 | 2009-01-07 | 广西玉柴机器股份有限公司 | Supercharger structure of compressor |
| CN101303029A (en) * | 2008-06-10 | 2008-11-12 | 寿光市康跃增压器有限公司 | Turbocharger compressor apparatus for compressing inflammable mixture gas |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110770452A (en) * | 2017-06-28 | 2020-02-07 | 株式会社Ihi | Centrifugal compressor |
| CN110770452B (en) * | 2017-06-28 | 2022-01-07 | 株式会社Ihi | Centrifugal compressor |
| US11378094B2 (en) | 2017-06-28 | 2022-07-05 | Ihi Corporation | Centrifugal compressor |
| CN116591971A (en) * | 2023-07-17 | 2023-08-15 | 西北工业大学 | Double-channel centrifugal compressor with high-low pressure ratio |
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Application publication date: 20130619 |