WO1994010437A1 - Dispositif a tourbillonnement d'air pour moteur a combustion interne - Google Patents

Dispositif a tourbillonnement d'air pour moteur a combustion interne Download PDF

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Publication number
WO1994010437A1
WO1994010437A1 PCT/KR1993/000092 KR9300092W WO9410437A1 WO 1994010437 A1 WO1994010437 A1 WO 1994010437A1 KR 9300092 W KR9300092 W KR 9300092W WO 9410437 A1 WO9410437 A1 WO 9410437A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
vanes
swirling device
air flow
internal combustion
Prior art date
Application number
PCT/KR1993/000092
Other languages
English (en)
Inventor
Sei Young Kim
Original Assignee
Sei Young Kim
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 Sei Young Kim filed Critical Sei Young Kim
Priority to AU53772/94A priority Critical patent/AU5377294A/en
Publication of WO1994010437A1 publication Critical patent/WO1994010437A1/fr

Links

Classifications

    • 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
    • F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
    • F02M29/04—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
    • F02M29/06—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like generating whirling motion of mixture

Definitions

  • the present invention relates to an air swirling device for an internal combustion engine more particularly, to an air swirling device having a plurality of vanes with at least one nose angle at the leading edge thereof respectively, which is positioned within an air cleaner of an internal combustion engine for achieving complete combustion.
  • the air swirling device is used for a spark ignition internal combustion engine of a carburetor type or a fuel injection type, and a diesel engine of a high compression self-ignition type.
  • Nos.4 ,424 , 777 , 4,432,312, and 4,539,954 disclose a device having vanes which are disposed at the vicinity of an intake valve. Such devices have various disadvantages, such as for example air resistance, reduced inlet air into the cylinder, varying air flows of intake manifolds and strong vibrations due to different swirl ratios and volumes of intake air.
  • U.S.Pat. Nos.3 , 648 , 674 and 4,274,386 disclose a wire set and blades device disposed between a carburetor and intake manifold. However, the device exhibits high friction so that the device provides a reduced amount of inlet air and is used only for a gasoline engine of the carburetor type. In order to avoid such problems, U.S.
  • Pat. No.4 ,962 ,642 discloses an air flow system for an internal combustion engine comprising an air cleaner and a swirling device disposed therein, having a plurality of vanes for causing the air to swirl thereby improving the properties of air fuel mixture and the performance of the engine.
  • this air flow system as, shown in Fig. 1 has shock wave 2 due to high speed, for example sonic air flow towards the vanes 1 and negative pressure disposed behind vanes and air flow frictions due to the swirl of the air so that the air flow system has several disadvantages such as, for example, decrease of the intake air, lower power.
  • M means Mach number.
  • Another object of the present invention is to provide an air swirling device located in an air cleaner, the air swirling device having a plurality of vanes with at least one nose angle at the leading edge thereof respectively.
  • One advantage of the air swirling device of the present invention is that it minimizes the resistance of air flow, particularly due to shock wave caused by high speed airflow and causes the fuel to stay in the center part of the swirl of air and prevents from adherence of the fuel to the wall of the intake system and from generating negative pressure behind the vanes. This provides for a good mixture of air and fuel having good evaporation and fine and uniform fuel particle size which improves the acceleration of the vehicle driven by the engine. If here is a slight pedal acceleration, the amount of the injected fuel is lower thereby resulting in fuel savings.
  • the air intake valve continuously opens and closes.
  • a revolution inertia force causes a high density of air which surge into the combustion chamber when the valve opens.
  • the flame is scattered and the fuel is completely combustive thereby producing a-uniform force downward on the piston.
  • the uniform force prevents noise vibration and abrasion thereby causing stronger engine power and longer engine life.
  • the fast combustion is useful with advanced spark timing and results in leaner combustion, lower air pollution and fuel savings.
  • the combustion products (carbon and oxides) are concentrated in the center of the combustion chamber and can be easily exhausted to prevent carbon accumulation in the combustion chamber which could cause engine abrasion.
  • the swirling action may continue in the same direction without any exhausted resistance as the gas leaves the combustion chamber.
  • the present invention relates to a swirling device having a plurality of vanes with at least one nose angle at the leading edge thereof respectively, which are disposed around the center of the air cleaner for causing the air to swirl.
  • the air cleaner preferably has a cylindrical shape and the swirling device has a control outwardly from the control area toward the air cleaner.
  • the vanes of the swirling device having at least one nose angle at the leading edge thereof respectively, for increasing air flow through the air cleaner reduce the air resistance due to Shockwave at high speed air flow.
  • FIG. 1(A)(B)(C)(D) show transonic flows through the conventional air swirling device, when Mach number is 0.77, 0.82, 0.95, 1.05, respectively.
  • FIG. 2 is a cross-sectional view of the air swirling device for a gasoline engine of the present invention:
  • FIGS. 3(A) (B) are perspective views of a swirling device having a plurality of vanes with at least one nose angle at the leading edge thereof respectively, of the present invention:
  • FIG. 4(A) shows the air flow stream through the conventional air swirling device
  • FIG. 4(B) shows the air flow stream through the air swirling device of the present invention.
  • FIG. 5 (A) (B) (C ) (D) are front views of various vanes of the swirling device of the present invention, having at least one nose angle at the leading edge thereof.
  • a swirling device 10 comprises a hub member 11 and a plurality of vanes 13, which extend radially from the hub member 11, with nose angle ⁇ at the leading edge 13a thereof and with at least one elongated slits 15 disposed therein, respectively.
  • the swirling device 10 is disposed around the center of an air cleaner 3 for causing the air to swirl.
  • the swirling device 10 may be made of flexible materials.
  • the air cleaner 3 is associated with an engine body 5 of a gasoline engine through a carburetor 4 and an intake manifold 6 (FIG. 2).
  • the engine body 5 is associated with an exhaust manifold 7.
  • the swirling device 10 is inserted into the inside of the air cleaner 3.
  • each of vanes 13 has at least one nose angle ⁇ at the leading edge 13a thereof and at least one elongated slit 15.
  • the slit 15 is vertically or horizontally located in the vanes 13 and vertically and horizontally located in the vanes 13.
  • each of vanes 13 may have at least one nose angle at the trailing edge 13b thereof .
  • the swirling devices 10 having a plurality of vanes 13, respectively, can be added in the portion between the carburetor 4 and intake manifold 6 in the same direction for increasing the swirling air flow force which may be reduced while the swirling air passes the carburetor 4.
  • an additional swirling device 10 is inserted into the exhaust manifold entrance 7a in the same direction for improving the swirling of the exhaust gas. Furthermore, the swirling exhaust gas prevents back pressure thereby resulting in complete exhaustion and stronger intake force.
  • the air flow stream according to the present invention prevents from generating the negative pressure disposed behind the plurality of vanes 13 and reduce the air resistance due to the shock wave caused by high speed air flow towards the vanes 13(FIG. 4(B)),
  • the air flow stream according to the conventional air flow system generate the negative pressure disposed behind the plurality of vanes and the shock wave 2 due to sonic airflow towards the vanes 1(FIG. 4(A)).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

Dispositif à tourbillonnement d'air (10) pour moteur à combustion interne. Le dispositif est monté dans un épurateur d'air (3) et possède une pluralité de pales (13) destinées à créer un tourbillonnement d'air afin d'améliorer les propriétés du mélange air/combustible, et donc le rendement du moteur. Chacune des pales (13) présente au moins un angle υ au niveau de son bord d'attaque (13a) afin de réduire la résistance du flux d'air due à l'onde de choc provoquée par l'air en écoulement à grande vitesse en direction des pales.
PCT/KR1993/000092 1992-10-23 1993-10-22 Dispositif a tourbillonnement d'air pour moteur a combustion interne WO1994010437A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU53772/94A AU5377294A (en) 1992-10-23 1993-10-22 Air swirling device for an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IDS-000066 1992-10-23
ID920066 1992-10-23

Publications (1)

Publication Number Publication Date
WO1994010437A1 true WO1994010437A1 (fr) 1994-05-11

Family

ID=11004964

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1993/000092 WO1994010437A1 (fr) 1992-10-23 1993-10-22 Dispositif a tourbillonnement d'air pour moteur a combustion interne

Country Status (2)

Country Link
AU (1) AU5377294A (fr)
WO (1) WO1994010437A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321084A (en) * 1997-01-09 1998-07-15 Brian Wilcockson Charge mixing device for the intake of an i.c. engine
KR20010074255A (ko) * 2001-05-03 2001-08-04 홍영표 연료와 에어의 혼합효과를 위한 자동차용 에어 스월링유닛
US6938608B2 (en) 1998-07-28 2005-09-06 Heru P. Wijaya Air flow-twisting device on an air inlet system of internal combustion engine
GB2437977A (en) * 2006-05-12 2007-11-14 Siemens Ag A swirler for use in a burner of a gas turbine engine
US7543561B2 (en) * 2007-08-24 2009-06-09 Toyota Boshoku Kabushiki Kaisha Swirl generator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB192200A (en) * 1921-11-08 1923-02-01 Antonio Urbano A carburettor for internal combustion engines
US1514132A (en) * 1921-04-30 1924-11-04 William C Cortelyou Mixer for gaseous fuel
GB2245028A (en) * 1990-06-12 1991-12-18 Sei Young Kim I.C. engine charge swirling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1514132A (en) * 1921-04-30 1924-11-04 William C Cortelyou Mixer for gaseous fuel
GB192200A (en) * 1921-11-08 1923-02-01 Antonio Urbano A carburettor for internal combustion engines
GB2245028A (en) * 1990-06-12 1991-12-18 Sei Young Kim I.C. engine charge swirling

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2321084A (en) * 1997-01-09 1998-07-15 Brian Wilcockson Charge mixing device for the intake of an i.c. engine
GB2321084B (en) * 1997-01-09 2000-05-10 Brian Wilcockson Charge mixing device for the intake of an i.c. engine
US6938608B2 (en) 1998-07-28 2005-09-06 Heru P. Wijaya Air flow-twisting device on an air inlet system of internal combustion engine
KR20010074255A (ko) * 2001-05-03 2001-08-04 홍영표 연료와 에어의 혼합효과를 위한 자동차용 에어 스월링유닛
GB2437977A (en) * 2006-05-12 2007-11-14 Siemens Ag A swirler for use in a burner of a gas turbine engine
US7543561B2 (en) * 2007-08-24 2009-06-09 Toyota Boshoku Kabushiki Kaisha Swirl generator

Also Published As

Publication number Publication date
AU5377294A (en) 1994-05-24

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