CN105649785A - Rotary type tumble ratio regulating system - Google Patents

Rotary type tumble ratio regulating system Download PDF

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Publication number
CN105649785A
CN105649785A CN201511026765.3A CN201511026765A CN105649785A CN 105649785 A CN105649785 A CN 105649785A CN 201511026765 A CN201511026765 A CN 201511026765A CN 105649785 A CN105649785 A CN 105649785A
Authority
CN
China
Prior art keywords
centrifugal
engine
arc plate
air
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201511026765.3A
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Chinese (zh)
Inventor
苗瑞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Jiaotong University
Original Assignee
Shanghai Jiaotong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Jiaotong University filed Critical Shanghai Jiaotong University
Priority to CN201511026765.3A priority Critical patent/CN105649785A/en
Publication of CN105649785A publication Critical patent/CN105649785A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/12—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit
    • F02D9/16—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having slidably-mounted valve members; having valve members movable longitudinally of conduit the members being rotatable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/04—Modifying induction systems for imparting a rotation to the charge in the cylinder by means within the induction channel, e.g. deflectors
    • F02B31/06—Movable means, e.g. butterfly valves
    • 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)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)

Abstract

A rotary type tumble ratio regulating system in the technical field of machine design comprises a control body, a centrifugal shaft, a centrifugal cavity, a centrifugal body, a centrifugal spring, an arc slab, an elastic band, a rotating shaft and a rotating plate; the centrifugal cavity, the centrifugal body, the centrifugal spring, the arc slab and the elastic band are all arranged in the control body; one end of the centrifugal body is arranged in the centrifugal cavity and connected with the centrifugal shaft by means of the centrifugal spring, and the other end of the centrifugal body is of an arc structure and in sealed-contact with the arc slab; and the elastic band is arranged on an outer surface of the arc slab. When the rotating speed of an engine is relatively high, the rotating plate rotates clockwise, leading to widening of a throat of an air intake branch and relatively small pumping loss; when the rotating speed of the engine is relatively low, the rotating plate rotates counterclockwise, leading to narrowing of the throat of the air intake branch and an increase in the tumble ratio. The rotary type tumble ratio regulating system is reasonable in design, simple in structure, and suitable for optimized design of a variable tumble ratio system.

Description

The rotary stream that rolls compares regulating system
Technical field
What the present invention relates to is that a kind of mechanical designing technique field rotary rolls stream than regulating system, particularly a kind of being suitable forRoll stream in air inlet and compare regulating system than the rotary stream that rolls of changeable mechanism.
Background technology
20 beginnings of the century, Britain B.Hopkinson finds in engine test: when air in disturbance cylinder, can addAfter speed combustion process eighties, organize the air movement in cylinder by the gas handling system of engine, utilize eddy current to realizeCharge stratification combustion efficiency, utilizes and rolls the turbulence intensity in stream increase combustion chamber and adopt lean combustion pattern etc.,All become the research contents that current spark ignition engine is paid close attention to. Air movement in cylinder is transition and multipleMix, from the mass motion of gas macroscopic view, generally show as inclined-axis swirl. At this moment eddy current and roll stream can be as tiltedlyIndependently component of two of axial eddies. Test finds to roll stream can improve the rapids that compresses air movement in combustion chamber at the end equallyIntensity of flow, increases turbulence intensity and can impel rate of flame propagation to accelerate, and combustion duration shortens, and heat liberation rate, heat release rate improves,Thereby improve combustion process, improved the dynamic property of engine. Roll stream mode and be better than eddy current, rely on because roll the formation of streamCasing wall and piston movement, can preserve larger kinetic energy in intake process, and in compression process, a part of kinetic energy makes large scaleAir movement be broken into the microvovtex of numerous small scales, improved the turbulence intensity in cylinder, and eddy current is generally experiencing constantlyThe process of decay. As a whole, why stream is rolled in gasoline engine employing is that this just leads because petrol engine rotational speed is higher on the one handCausing each combustion stroke need to complete within the shorter time, can ensure at compression larger tubulence energy of later stage and roll stream,Make rate of flame propagation increase not shorten combustion duration; The 2nd, due to the restriction of structure, the available space of gasoline engineLittle, and that swirl air passage takes up room is larger.
Through existing literature search, find that number of patent application is 20121041673.5, name is called a kind of petrol engine canBecome air inlet and roll the patented technology of stream governor motion, provide a kind of YE that utilizes to regulate air inlet to roll the technology of stream,But the self-control that he can not realize air inlet and rolls stream.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, provide a kind of rotary stream that rolls than regulating system, can make to startMachine air inlet is rolled stream beguine and is carried out self-control according to engine speed.
The present invention is achieved through the following technical solutions, the present invention includes engine air inlet tube, air filter, air throttle,Inlet manifold, air intake branch, engine, the exhaust pipe of engine, catalysis bag, muffler, rotating shaft, control volume, drawStretch axle, stretching bar, centrifugal shaft, centrifugal chamber, centrifugal body, centrifugal spring, arc plate, elastic cord, swivel plate, rotationBar, the gas outlet of engine air inlet tube is connected with inlet manifold's air inlet, inlet manifold's gas outlet and air intake branchAir inlet be connected, the gas outlet of air intake branch is connected with the air intake duct of engine, air filter, air throttle connect successivelyOn engine air inlet tube, the gas outlet of the exhaust pipe of engine is connected with the exhaust duct of engine, catalysis bag, mufflerBe arranged in successively on the exhaust pipe of engine, rotating shaft is embedded on the lower wall of air intake branch, and swivel plate is arranged in air intake branchIn and be consolidated with rotating shaft, the external part of rotating shaft and one end of swingle are consolidated, another of swingleEnd is hinged with one end of stretching bar, and the other end of stretching bar and one end of tensile axis are consolidated, tensile axisThe upper end arc plate of the other end and control volume inside is consolidated, and one end of centrifugal shaft is through behind the antetheca center of control volumeBe embedded on the rear wall of control volume, centrifugal chamber, centrifugal body, centrifugal spring, arc plate, elastic cord are arranged in control volumeIn, centrifugal chamber and centrifugal shaft are consolidated, and one end of centrifugal body is arranged in centrifugal chamber and by centrifugal spring and centrifugalAxle is connected, and the other end of centrifugal body is arc structure, and the other end of centrifugal body contacts with arc plate sealing, elastic cord clothPut the outer surface at arc plate, the other end of centrifugal shaft is connected with the bent axle of engine by chain.
Further, the cross section of control volume internal cavity is circular in the present invention, and centrifugal chamber, arc plate are at control volumeInside be array and arrange, the number of arc plate is more than or equal to the number in centrifugal chamber, and the gap width between arc plate is littleIn the cross-sectional width of centrifugal body, elastic cord inside is with elastic wire structure.
Compared with prior art, the present invention has following beneficial effect and is: the present invention is reasonable in design, simple in structure; Air inletRoll stream more adjustable than carrying out continuously according to engine speed, thereby take into account the various operating conditions of engine.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the profilograph of air intake branch in the present invention;
Fig. 3 is the structural representation of A-A section in Fig. 1;
Fig. 4 is the profile of control volume in the present invention;
Fig. 5 is the structural representation of B-B section in Fig. 4;
Fig. 6 is the structural representation of C-C section in Fig. 5;
Wherein: 1, engine air inlet tube, 2, air filter, 3, air throttle, 4, inlet manifold, 5, air intake branch, 6,Engine, 7, the exhaust pipe of engine, 8, catalysis bag, 9, muffler, 10, rotating shaft, 11, control volume, 12,Tensile axis, 13, stretching bar, 14, centrifugal shaft, 15, centrifugal chamber, 16, centrifugal body, 17, centrifugal spring, 18, circleArc plate, 19, elastic cord, 20, swivel plate, 21, swingle.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, the present embodiment is taking technical solution of the present invention as prerequisite,Provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figures 1 to 6, the present invention includes engine air inlet tube 1, air filter 2, air throttle 3, inlet manifold 4,Air intake branch 5, engine 6, the exhaust pipe of engine 7, catalysis bag 8, muffler 9, rotating shaft 10, control volume 11,Tensile axis 12, stretching bar 13, centrifugal shaft 14, centrifugal chamber 15, centrifugal body 16, centrifugal spring 17, arc plate 18,Elastic cord 19, swivel plate 20, swingle 21, the gas outlet of engine air inlet tube 1 and inlet manifold's 4 air inlet phaseConnect, inlet manifold 4 gas outlet is connected with the air inlet of air intake branch 5, the gas outlet of air intake branch 5 and startingThe air intake duct of machine 6 is connected, and air filter 2, air throttle 3 are connected in turn on engine air inlet tube 1, the exhaust pipe of engine7 gas outlet is connected with the exhaust duct of engine 6, and catalysis bag 8, muffler 9 are arranged in the exhaust pipe of engine 7 successivelyUpper, rotating shaft 10 is embedded on the lower wall of air intake branch 5, and swivel plate 20 is arranged in air intake branch 5 and and rotating shaft10 are consolidated, and one end of the external part of rotating shaft 10 and swingle 21 is consolidated, another of swingle 21End is hinged with one end of stretching bar 13, and one end of the other end of stretching bar 13 and tensile axis 12 is consolidated,The upper end arc plate 18 of the other end of tensile axis 12 and control volume 11 inside is consolidated, and wear one end of centrifugal shaft 14After crossing the antetheca center of control volume 11, be embedded on the rear wall of control volume 11 centrifugal chamber 15, centrifugal body 16, centrifugal bulletSpring 17, arc plate 18, elastic cord 19 are arranged in control volume 11, and centrifugal chamber 15 is cemented in one with centrifugal shaft 14Rise, one end of centrifugal body 16 is arranged in centrifugal chamber 15 and is connected with centrifugal shaft 14 by centrifugal spring 17, centrifugalThe other end of body 16 is arc structure, and the other end of centrifugal body 16 contacts with arc plate 18 sealings, and elastic cord 19 is arrangedAt the outer surface of arc plate 18, the other end of centrifugal shaft 14 is connected with the bent axle of engine 4 by chain; Control volumeThe cross section of 11 internal cavities is circular, and centrifugal chamber 15, arc plate 18 are array and arrange in control volume 11,The number of arc plate 18 is more than or equal to the number in centrifugal chamber 15, and the gap width between arc plate 18 is less than centrifugal body16 cross-sectional width, elastic cord 19 inside are with elastic wire structure.
In the course of work of the present invention, in the time that engine speed increases, the rotating speed of centrifugal shaft 14 also increases, and is arranged inCentrifugal body 16 in centrifugal chamber 15 centrifugal force in rotary course increases, centrifugal body 16 is synchronous outwards move and stretch fromHeart spring 17, be arranged in upper end arc plate 18 in control volume 11 be subject to the effect of centrifugal force of centrifugal body 16 backward onMobile, on tensile axis 12 is also synchronous, move, tensile axis 12 drives on stretching bar 13 and moves, thus the bar 13 that makes to stretch pulls and revolvesBull stick 9, rotating shaft 10, swivel plate 20 turn clockwise together, and it is large that air intake branch reducing becomes, and pumping loss diminishes;When engine speed is lower, the rotating speed of centrifugal shaft 14 is also lower, centrifugal under the effect of centrifugal spring 17, elastic cord 19Body 16 synchronously moves inward, and the upper end arc plate 18 being arranged in control volume 11 moves down, and tensile axis 12 is also synchronousMove down, tensile axis 12 drives stretching bar 13 to move down, thereby the bar 13 driven rotary bars 9 that make to stretch, rotating shaft 10, revolvesFlap 20 is rotated counterclockwise together, and air intake branch reducing diminishes, and rolls stream than becoming large, and efficiency of combustion is higher.

Claims (2)

1. the rotary stream that rolls is than a regulating system, comprise engine air inlet tube (1), air filter (2), air throttle (3),Inlet manifold (4), air intake branch (5), engine (6), the exhaust pipe of engine (7), catalysis bag (8), muffler(9), the gas outlet of engine air inlet tube (1) is connected with inlet manifold's (4) air inlet, inlet manifold (4)Gas outlet be connected with the air inlet of air intake branch (5), the gas outlet of air intake branch (5) and engine (6)Air intake duct is connected, and it is upper that air filter (2), air throttle (3) are connected to engine air inlet tube (1) in turn, engine exhaustThe gas outlet of pipe (7) is connected with the exhaust duct of engine (6), and catalysis bag (8), muffler (9) are arranged successivelyUpper at the exhaust pipe of engine (7), it is characterized in that, also comprise rotating shaft (10), control volume (11), tensile axis (12),Stretching bar (13), centrifugal shaft (14), centrifugal chamber (15), centrifugal body (16), centrifugal spring (17), arc plate (18),Elastic cord (19), swivel plate (20), swingle (21), rotating shaft (10) is embedded on the lower wall of air intake branch (5),Swivel plate (20) is arranged in air intake branch (5) and is consolidated with rotating shaft (10), rotating shaft (10)One end of external part and swingle (21) is consolidated, one of the other end of swingle (21) and stretching bar (13)Hold hingedly, one end of the other end of stretching bar (13) and tensile axis (12) is consolidated, tensile axis (12)The other end and the inner upper end arc plate (18) of control volume (11) be consolidated, wear one end of centrifugal shaft (14)After crossing the antetheca center of control volume (11), be embedded on the rear wall of control volume (11), centrifugal chamber (15), centrifugal body (16),Centrifugal spring (17), arc plate (18), elastic cord (19) are arranged in control volume (11), centrifugal chamber (15)Be consolidated with centrifugal shaft (14), one end of centrifugal body (16) is arranged in centrifugal chamber (15) and by centrifugal bulletSpring (17) is connected with centrifugal shaft (14), and the other end of centrifugal body (16) is arc structure, centrifugal body (16)The other end contacts with arc plate (18) sealing, and elastic cord (19) is arranged in the outer surface of arc plate (18), centrifugal shaft(14) the other end is connected with the bent axle of engine (4) by chain.
2. the rotary stream that rolls according to claim 1, than regulating system, is characterized in that control volume (11) insideThe cross section of cavity is circular, and centrifugal chamber (15), arc plate (18) are array and arrange in control volume (11),The number of arc plate (18) is more than or equal to the number of centrifugal chamber (15), and the gap width between arc plate (18) is littleIn the cross-sectional width of centrifugal body (16), elastic cord (19) is inner with elastic wire structure.
CN201511026765.3A 2015-12-31 2015-12-31 Rotary type tumble ratio regulating system Pending CN105649785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201511026765.3A CN105649785A (en) 2015-12-31 2015-12-31 Rotary type tumble ratio regulating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201511026765.3A CN105649785A (en) 2015-12-31 2015-12-31 Rotary type tumble ratio regulating system

Publications (1)

Publication Number Publication Date
CN105649785A true CN105649785A (en) 2016-06-08

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ID=56491089

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Application Number Title Priority Date Filing Date
CN201511026765.3A Pending CN105649785A (en) 2015-12-31 2015-12-31 Rotary type tumble ratio regulating system

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288740A (en) * 2016-04-05 2017-10-24 现代自动车株式会社 Air intake structure for vehicle motor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030084872A1 (en) * 1999-10-18 2003-05-08 Russell John David Engine method
CN104564313A (en) * 2015-01-26 2015-04-29 上海交通大学 Hinge type throat adjusting system
CN105019971A (en) * 2015-06-29 2015-11-04 童瑶 Centrifugal force-to-rotating force conversion mechanism
CN105156203A (en) * 2015-10-13 2015-12-16 上海栊桦检测科技有限公司 Pipeline built-in type arced spring device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030084872A1 (en) * 1999-10-18 2003-05-08 Russell John David Engine method
CN104564313A (en) * 2015-01-26 2015-04-29 上海交通大学 Hinge type throat adjusting system
CN105019971A (en) * 2015-06-29 2015-11-04 童瑶 Centrifugal force-to-rotating force conversion mechanism
CN105156203A (en) * 2015-10-13 2015-12-16 上海栊桦检测科技有限公司 Pipeline built-in type arced spring device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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Application publication date: 20160608