CN205172722U - But novel variable cross section of a section and roll a class air intake system - Google Patents
But novel variable cross section of a section and roll a class air intake system Download PDFInfo
- Publication number
- CN205172722U CN205172722U CN201520605117.2U CN201520605117U CN205172722U CN 205172722 U CN205172722 U CN 205172722U CN 201520605117 U CN201520605117 U CN 201520605117U CN 205172722 U CN205172722 U CN 205172722U
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- China
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- section
- air
- cross
- intake
- roll
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- 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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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model discloses a but novel variable cross section of a section and roll a class air intake system, the all air intake manifold who cross to change under the low load condition of this department cross -section of admitting air to improve the velocity of flow that admits air, cooperation intake duct baffle has improved to admit air and has rolled the flow ratio, reduces to spray the fuel in the jar and to cylinder liner, piston -top surface and spiracular wet wall phenomenon, reduce the carbon deposit, reduces and discharges, reduces oil dilution and rates, improves gas mixture homogeneity, fuel economy. When the high load capacity, through the adjustment cross -section of admitting air, reduced intake resistance, for the generator provides enough air inputs, guarantee that whole car is to the powerful demand of engine.
Description
Technical field
The utility model belongs to automotive engine air intake system, in particular to a Novel section-variable and roll stream gas handling system.
Background technique
Along with the raising day by day that increasingly stringent and the Consumer of environmental protection, Abgasgesetz require motor car engine fuel economy, how to meet motor car engine low emission and high fuel economy has become the current problem that must solve of motor-dom.
For the side-mounted directly jetting gasoline engine of oil sprayer, due to its oil sprayer side, in injection process, oil bundle and the downward-sloping a certain angle in cylinder bottom plane, advance with injection time, under the operating mode that charge air flow intensity is lower, spraying will inevitably collide with cylinder wall surface, piston-top surface, causes the problems such as carbon distribution, oil dilution, deterioration of emission.So when sub load, charge flow rate is little, wish higher induction air flow ratio, improve charging efficiency, wish higher Tumble and swirl simultaneously, reduce fuel oil and to wet wall phenomenon, reduce oil dilution rate, improve combustion efficiency.
For gas-duct jetting petrol engine, under low speed sections load condition, engine demand air inflow is less, and throttle valve loss is large, and air inlet cross section after throttle body is comparatively large, causes air inlet intensity lower, is unfavorable for air-fuel mixture; Tumble intensity is low, and rate of burning is slow, is unfavorable for the raising of fuel economy.
As everyone knows, the Tumble and swirl of intake duct and flow coefficient are conflicting, and Tumble and swirl is larger, and flow coefficient is lower; In air inlet pressure compression process, form higher Tumble and swirl, higher turbulence intensity can be produced before compression top center, accelerate velocity of propagation of flame, shorten combustion duration, reduce heat transfer loss, thus improve indicated thermal efficiency.And current air intake system structure, have chosen the inlet structure of the low Tumble and swirl of large discharge coefficient to take into account high low-speed performance, so combustion duration is longer, the thermal efficiency is lower.
Summary of the invention
In order to overcome induction air flow ratio problem, this patent provides a Novel section-variable and rolls stream gas handling system, by changing the intake manifold air inlet cross section under running on the lower load, thus raising induction air flow ratio, intake duct dividing plate is coordinated to improve air inlet Tumble and swirl, not only reduce the wet wall phenomenon of in-cylinder injection fuel oil to cylinder sleeve, piston-top surface and valve, and improve mixed gas uniformity, fuel economy.The technological scheme that the utility model adopts is: pressure stabilizing cavity and each arm of intake manifold are all divided into double layer construction, have a rotary valve plate in pressure stabilizing cavity, can according to different operating mode different rotation angle; Cylinder cap intake duct is equipped with a dividing plate, is also divided into by intake duct two-layer up and down, cooperatively interacts with intake manifold hierarchy, the control of rotary valve plate adopts electric drive closed loop control, ensure that precision and the sensitivity of control.
Accompanying drawing explanation
Fig. 1 is that long-pending the rolling of variable cross section flows to gas system schematic
In figure: (1) piston (2) cylinder cap (3) oil sprayer (4) rotary valve plate (5) intake manifold main body (6) cylinder cap intake duct (7) intake duct dividing plate (8) intake valve (9) exhaust valve
Embodiment
Pressure stabilizing cavity and each arm of intake manifold main body (5) are all divided into double layer construction, have a rotary valve plate (4) in pressure stabilizing cavity, can according to different operating mode different rotation angle; An intake duct dividing plate (7) cylinder cap intake duct (6) is equipped with, also cylinder cap intake duct (6) is divided into two-layer up and down, cooperatively interact with intake manifold main body (5) hierarchy, cylinder cap (2) is also equipped with inlet and exhaust valve (8) (9); Oil sprayer (3) can be arranged on below intake duct or top, depends on different spray regimes.
In low-load conditions, rotary valve plate (4) does not rotate, air-flow can only pass through from the upper strata of intake manifold main body (5) and cylinder cap intake duct (6), air-flow tangentially enters along combustion chamber wall surface, inswept exhaust valve (9) bottom surface, move downward along casing wall, along with unlatching and piston (1) the descending formation large scale eddy flow of intake valve (8), namely roll stream; Due to the effect of intake duct dividing plate (7) water conservancy diversion, have little air-flow from intake duct dividing plate (7) below process, the stream that rolls of such large scale is formed.Along with piston (1) is up, large scale is rolled stream flow velocity and is strengthened gradually, until close to compression top center, large scale is rolled stream and is broken into a large amount of little eddy current, adds the turbulence intensity of time of ignition, propagation of flame speed when improve burning, thus shorten combustion duration, decrease the heat transfer loss of expansion stroke, thus improve the thermal efficiency, reduce fuel consume.
Under middle and high load working condition, rotary valve plate (4) turns an angle, air-flow can from intake manifold main body (5) and cylinder cap intake duct (6) upper and lower two-layer while air inlet, because rotary valve plate (4) angle is different, the requirement to Tumble intensity and flow coefficient under different operating mode can be controlled.When rotary valve plate (4) is opened completely, air-flow pours in cylinder from intake valve (8) surrounding, improves the flow coefficient of air inlet, meets the requirement of high load working condition to air inflow.
The control of rotary valve plate (4) adopts electric drive closed loop control, rotary valve plate (4) is freely rotated between 0-90 °, ensure that precision and the sensitivity of control.
Claims (2)
1. a Novel section-variable and roll stream gas handling system, is characterized in that: intake manifold is all divided into double layer construction from pressure stabilizing cavity to each arm, has a rotary valve plate in pressure stabilizing cavity, can according to different operating mode different rotation angle; Cylinder cap intake duct is equipped with a dividing plate, also intake duct is divided into two-layer up and down, cooperatively interacts with intake manifold hierarchy.
2. variable cross section according to claim 1 and roll stream gas handling system, is characterized in that: the control of rotary valve plate adopts electric drive closed loop control, valve plate is freely rotated between 0-90 °, ensure that precision and the sensitivity of control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605117.2U CN205172722U (en) | 2015-08-07 | 2015-08-07 | But novel variable cross section of a section and roll a class air intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520605117.2U CN205172722U (en) | 2015-08-07 | 2015-08-07 | But novel variable cross section of a section and roll a class air intake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205172722U true CN205172722U (en) | 2016-04-20 |
Family
ID=55736724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520605117.2U Expired - Fee Related CN205172722U (en) | 2015-08-07 | 2015-08-07 | But novel variable cross section of a section and roll a class air intake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205172722U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286042A (en) * | 2015-06-18 | 2017-01-04 | 上海银轮热系统科技有限公司 | A Novel section-variable and tumble flow gas handling system |
| CN107288740A (en) * | 2016-04-05 | 2017-10-24 | 现代自动车株式会社 | Air intake structure for vehicle motor |
-
2015
- 2015-08-07 CN CN201520605117.2U patent/CN205172722U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286042A (en) * | 2015-06-18 | 2017-01-04 | 上海银轮热系统科技有限公司 | A Novel section-variable and tumble flow gas handling system |
| CN107288740A (en) * | 2016-04-05 | 2017-10-24 | 现代自动车株式会社 | Air intake structure for vehicle motor |
| CN107288740B (en) * | 2016-04-05 | 2021-02-23 | 现代自动车株式会社 | Air intake structure for vehicle engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161201 Address after: 201100 Shanghai city Minhang District Jianchuan Road No. 955 I enjoy my 8 floor building room 807 Patentee after: Shanghai silver wheel Thermal System Technology Co., Ltd. Address before: 215134 Jiangsu city in Suzhou Province, Xiangcheng Weitang Town, No. 19 egger Jorge Luis Patentee before: GAST POWERTRAIN TECHNOLOGIES (SUZHOU) CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20200807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |