GB2147356A - Supercharging a motor vehicle I.C. engine - Google Patents

Supercharging a motor vehicle I.C. engine Download PDF

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Publication number
GB2147356A
GB2147356A GB08326437A GB8326437A GB2147356A GB 2147356 A GB2147356 A GB 2147356A GB 08326437 A GB08326437 A GB 08326437A GB 8326437 A GB8326437 A GB 8326437A GB 2147356 A GB2147356 A GB 2147356A
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GB
United Kingdom
Prior art keywords
air
motor vehicle
vehicle according
outlet
turbine
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.)
Granted
Application number
GB08326437A
Other versions
GB8326437D0 (en
GB2147356B (en
Inventor
Kim Leong Chung
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08326437A priority Critical patent/GB2147356B/en
Publication of GB8326437D0 publication Critical patent/GB8326437D0/en
Publication of GB2147356A publication Critical patent/GB2147356A/en
Application granted granted Critical
Publication of GB2147356B publication Critical patent/GB2147356B/en
Expired 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
    • 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
    • F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
    • F02B27/005—Oscillating pipes with charging achieved by arrangement, dimensions or shapes of intakes pipes or chambers; Ram air pipes
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
    • F02B33/40—Engines with pumps other than of reciprocating-piston type with rotary pumps of non-positive-displacement type
    • 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
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10118—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements with variable cross-sections of intake ducts along their length; Venturis; Diffusers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

A charge-air compressor (4) for supercharging the engine (9) is driven by a turbine (13). The turbine (13) is driven by means of air collected by an air scoop (14) during forward movement of the vehicle. Some of the air from the compressor (4) may be supplied to the engine via a passage (10) bypassing carburettor (7). <IMAGE>

Description

SPECIFICATION Improvements in or relating to the supercharging of an engine of a motor vehicle This invention relates to a motor vehicle having an internal-combustion engine of the kind provided with a charge air compressor for supercharging the engine and a turbine for driving the compressor during forward movement of the motor vehicle.
Internal combustion engines of the kind referred to in which the turbine is driven by exhaust gases from the engine are already well known. However there are a number of disadvantages associated with such known exhaust gas driven turbines. For instance the turbines have to be made of expensive materials which are able to withstand the high temperatures and corrosive properties of the exhaust gases. Furthermore bearings used in the turbine are difficult to lubricate effectively because of the high temperatures of the exhaust gases. In addition it is difficult to obtain the correct timing for opening and closing exhaust valves to compensate for the slight increase in exhaust back pressure during operation of the exhaust gas turbine driven compressor.
Instead of driving the charge-air compressor by means of a turbine it is also known to drive the compressor directly from the engine via belt and pulley means. However, this solution is not ideal since part of the engine power is lost in driving the compressor.
The present invention seeks to provide a motor vehicle having an internal combustion engine provided with a charge-air compressor in which the above-mentioned disadvantages are eliminated.
According to the invention a motor vehicle having an internal-combustion engine provided with a charge-air compressor for supercharging the engine and a turbine for driving the compressor during forward movement of the motor vehicle, is characterised by the provision of air scoop means positioned to collect air during forward movement of the motor vehicle and arranged to convey the collected air to the turbine for driving the latter.
Conveniently the scoop means has an air inlet through which the air is collected during forward movement of the motor vehicle and an air outlet connected to an inlet of the turbine and through which the collected air arranged to pass for driving the turbine, the air inlet having a cross-section which is larger than that of the air outlet. The velocity of air passing through the air outlet, during forward movement of the motor vehicle, is thus greater than the velocity of air passing through the air inlet. The actual velocity of the air passing through the air outlet depends, of course, on the velocity of the admitted air and thus on the actual forward speed of the motor vehicle. Preferably the air inlet is directed forwardly and is conveniently located at the front of the motor vehicle.
Suitably the scoop means includes an air inlet portion which tapers inwardly away from the said air inlet, e.g. the air inlet portion may be frusto-conical. Alternatively, or in addition, the scoop means may include an air outlet portion which tapers inwardly towards the said air outlet, e.g. the air outlet portion may be frusto-conical. Air delivered to the turbine is conveniently arranged to drive a turbine rotor fitted with blades, the turbine rotor itself driving a rotor of the compressor. Typically the compressor comprises a centrifugal air blower, the compressor rotor and the turbine rotor being connected to common shaft means.
Preferably the internal-combustion engine comprises carburetting means including an induction pipe and means for supplying fuel thereto. The charge-air compressor is suitably arranged to pass compressed air through the induction pipe for mixing with fuel introduced via the fuel supply means. Preferably the internal-combustion engine also includes bypass means connected between the outlet of the charge-air compressor and a part of the induction pipe downstream of the fuel supply means. The provision of such by-pass means enables a portion of the charge-air from the charge-air compressor to be passed directly to the engine block by-passing the fuel supply means of the carburetting means. The by-pass means suitably includes throttle-operated valving means, e.g. a butterfly valve.
The internal-combustion engine suitably includes an air filter having an outlet connected to an inlet of the charge-air compressor.
Embodiments of the invention will now be described, by way of example, with reference to the accompanying drawing, in which: Figure 1 is a schematic side view of part of an internal-combustion engine of a motor vehicle according to the invention, and Figure 2 is a schematic, partly sectioned, side view of a detail of the engine shown in Fig. 1.
Fig. 1 shows various parts of an internalcombustion engine of a motor vehicle (not shown). In particular there is shown an air filter 1, having an air-intake tube 2 and an outlet 3, a charge-air compressor 4, having an air inlet 5 connected to the outlet 3 and an air outlet 6, a carburettor 7 including an induction pipe 8, and an engine block 9. The induction pipe 8 has an inlet section 8a connected so as to be in direct communication with the outlet 6 of the compressor 4, and an outlet section 8b positioned downstream of fuel supply means (not shown) of the carurrettor 7 and a throttle valve (also not shown) of the carburettor.Auxiliary air supply piping 10 is connected to the air outlet 6 of the compressor 4 and to the outlet section 8b (i.e. the inlet manifold) of the induction pipe 8 to enable auxiliary charge-air from the compressor 4 to be supplied directly to the cylinders of the engine block 9 without passing through the inlet section 8a of the introduction pipe of the carburettor 7. A butterfly valve 11 (see Fig. 2) operated, via linkage 1 2 (partly shown in Fig. 2), by the accelerator pedal (not shown) of the motor vehicle is positioned in the piping 10. The valve 11 is only opened when the accelerator pedal is operated, the valve 11 being fully opened when the accelerator pedal is fully depressed.
The amount of air supplied directly to the outlet section 8b is conveniently limited to a maximum of about 15% of the total amount of air supplied through the carburettor 7 via the inlet section 8a.
The charge-air compressor 4 is in the form of a centrifugal air blower which is driven by means of a turbine 1 3. The turbine 1 3 includes a rotor (not shown) fitted with blades and connected to a shaft 1 5 (shown in chain lines in Fig. 1). The shaft 15 is also connected to a rotor (not shown) of the centrifugal air blower. The turbine rotor is arranged to be rotated by means of air, supplied via scoop means 14, impinging on the blades of the turbine rotor. Rotation of the turbine rotor is transmitted via the shaft 1 5 to the rotor of the air blower causing air supplied to the inlet 5 of the compressor 4 to be compressed and delivered as compressed charge-air from the outlet 6 for supercharging the engine.
The scoop means 14 includes a frustoconical inlet portion 15, an intermediate portion 1 6 and a frusto-conical outlet portion 1 7.
The scoop means 1 4 is arranged at one side of a radiator 1 8 with its inlet portion 1 5 positioned at the front of the motor vehicle so that air is forced into the scoop means 14 with increasing velocity as the speed of forward movement of the motor vehicle increases. The tapering frusto-conical outlet portion 1 7 ensures that the velocity of air passing therethrough is increased as the cross-section of the outlet portion 1 7 decreases. Air exiting from the outlet portion 1 7 passes through an inlet 1 9 of the turbine 1 3 where it impinges on the blades of the turbine rotor.The kinetic energy of the air is thus used to drive the turbine 13, the turbine rotor transmitting its rotary motion to the compressor 4. Spent air from the turbine 1 3 passes out of an outlet 20. Since the turbine 1 3 is operated by unheated air (as opposed to conventional exhaust gas operated turbines), the parts of the turbine 1 3 do not have to be made of special materials resistant to hot and corrosive gases.
Furthermore the various parts of the turbine 1 3 can be easily lubricated.
By way of example only, the axial length, L, of the outlet portion 1 7 is typically 19 cm, the diameter D, of the outlet of the outlet portion 1 7 is typically 6 cm and the diameter, d, of the inlet of the outlet portion 1 7 is typically 1 9 cm. Thus D2 =10 and L=3D.
d2 The air-intake tube 2 may be designed and positioned in a similar manner to the scoop means 1 4 so that the amount of air supplied to the air filter 1 increases with forward movement of the motor vehicle. In addition steam or water may be added to the air supplied to the filter 1 via the air-intake tube 2. In this latter case. arrangements similar to those shown in published U.K. Patent Application No. 2099501A may be employed for feeding steam or water vapour to the air-intake tube 2.
The present invention may be employed with motor vehicles having different types of internal-combustion engines, e.g. petrol fuel electric spark type engines or diesel fuel compression ignition type engines. In the case of diesel fuel compression ignition type engines the carburettor 7 may be ommitted.
The engine shown in Fig. 1 may be modified within the scope of the present invention.
For example the auxiliary air supply piping 10 could be omitted or, instead of being connected to the outlet 6 of the compressor 4, could be connected to the outlet (not shown) of an auxiliary air filter (not shown)-for example in a manner similar to that shown in Fig. 5 of the afore-mentioned published U.K.
patent application.

Claims (11)

1. A motor vehicle having an internalcombustion engine provided with a charge-air compressor for super-charging the engine and a turbine for driving the compressor during forward movement of the motor vehicle, characterised by the provision of air scoop means positioned to collect air during forward movement of the motor vehicle and arranged to convey the collected air to the turbine for driving the latter.
2. A motor vehicle according to claim 1, in which the air scoop means has an air inlet through which air is collected during forward movement of the motor vehicle and an air outlet connected to an inlet of the turbine and through which the collected air is arranged to pass for driving the turbine, the said air inlet having a cross-section which is larger than that of the said air outlet.
3. A motor vehicle according to claim 2, in which the said air inlet is directed forwardly.
4. A motor vehicle according to claim 2 or 3, in which the said air inlet is located at the front of the motor vehicle.
5. A motor vehicle according to any of claims 2 to 4, in which the air scoop means includes an air inlet portion tapering inwardly away from the said air inlet.
6. A motor vehicle according to any of claims 2 to 5, in which the air scoop means includes an air outlet portion tapering towards the said air outlet.
7. A motor vehicle according to any of the preceding claims, comprising carburetting means including an induction pipe and means for supplying fuel thereto.
8. A motor vehicle according to claim 7, in which the charge-air compressor has an outlet connected to an inlet of the carburetting means.
9. A motor vehicle according to claim 7 or 8, in which the internal-combustion engine includes by-pass means for enabling air to be supplied to the outlet side of the carburetting means downstrem of the fuel supplying means.
10. A motor vehicle according to claim 9, in which the by-pass means comprises piping connected between an outlet of the compressor and an outlet of the carburetting means.
11. A motor vehicle according to claim 9 or 10, in which the by-pass means includes throttle-operated valving means.
1 2. A motor vehicle according to any of the preceding claims, in which the internalcombustion engine includes an air filter having an outlet connected to an inlet of the compressor.
1 3. A motor vehicle according to any of the preceding claims, in which the charge-air compressor comprises a centrifugal air blower having a rotor.
1 4. A motor vehicle according to claim 13, in which the turbine comprises a rotor fitted with blade means, the turbine rotor and the air blower rotor being connected to common shaft means.
1 5. A motor vehicle constructed and arranged substantially as herein described with reference to, and as illustrated in, Figs. 1 and 2 of the accompanying drawing.
GB08326437A 1983-10-03 1983-10-03 Supercharging a motor vehicle i c engine Expired GB2147356B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08326437A GB2147356B (en) 1983-10-03 1983-10-03 Supercharging a motor vehicle i c engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08326437A GB2147356B (en) 1983-10-03 1983-10-03 Supercharging a motor vehicle i c engine

Publications (3)

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GB8326437D0 GB8326437D0 (en) 1983-11-02
GB2147356A true GB2147356A (en) 1985-05-09
GB2147356B GB2147356B (en) 1987-04-23

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779419A2 (en) * 1995-12-13 1997-06-18 Francisco Gonzalez Mena Improvements made in the engine assembly of automotive vehicles
US6434940B1 (en) 2000-09-14 2002-08-20 Albert F. Araujo Air compressor for charging an internal combustion engine
US6450156B1 (en) 2000-09-14 2002-09-17 Albert F. Araujo Turbine supercharger for an internal combustion engine
US7008175B2 (en) 2003-06-03 2006-03-07 Saied Fathi Radiator cooling fan replacement to increase engine efficiency
CN102817698A (en) * 2011-06-08 2012-12-12 黄锦林 Turbo-charging device and traffic tool using same
WO2016154904A1 (en) * 2015-03-31 2016-10-06 山西华旗风能科技有限公司 Supercharging air-inlet system, and vehicle and method using same
CN106150673A (en) * 2015-03-31 2016-11-23 山西华旗风能科技有限公司 Compressed air induction system, the vehicles using this system and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NONE *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0779419A2 (en) * 1995-12-13 1997-06-18 Francisco Gonzalez Mena Improvements made in the engine assembly of automotive vehicles
EP0779419B1 (en) * 1995-12-13 2002-03-06 Francisco Gonzalez Mena Improvements made in the engine assembly of automotive vehicles
US6434940B1 (en) 2000-09-14 2002-08-20 Albert F. Araujo Air compressor for charging an internal combustion engine
US6450156B1 (en) 2000-09-14 2002-09-17 Albert F. Araujo Turbine supercharger for an internal combustion engine
US7008175B2 (en) 2003-06-03 2006-03-07 Saied Fathi Radiator cooling fan replacement to increase engine efficiency
CN102817698A (en) * 2011-06-08 2012-12-12 黄锦林 Turbo-charging device and traffic tool using same
WO2012167608A1 (en) * 2011-06-08 2012-12-13 Huang Jinlin Turbocharger device and vehicle using same
EP2719874A1 (en) * 2011-06-08 2014-04-16 Nanning Jinlin Environmental Protection Technology Company Turbocharger device and vehicle using same
EP2719874A4 (en) * 2011-06-08 2014-12-17 Nanning Jinlin Environmental Prot Technology Company Turbocharger device and vehicle using same
CN102817698B (en) * 2011-06-08 2016-04-27 山西华旗风能科技有限公司 Turbo charging installation and use the traffic tool of this turbo charging installation
US9376956B2 (en) 2011-06-08 2016-06-28 Nanning Jinlin Environmental Protection Technology Company Turbocharging apparatuses and vehicles using the same
WO2016154904A1 (en) * 2015-03-31 2016-10-06 山西华旗风能科技有限公司 Supercharging air-inlet system, and vehicle and method using same
CN106150673A (en) * 2015-03-31 2016-11-23 山西华旗风能科技有限公司 Compressed air induction system, the vehicles using this system and method
CN106150673B (en) * 2015-03-31 2019-01-25 山西华旗风能科技有限公司 Compressed air induction system, the vehicles and method using the system

Also Published As

Publication number Publication date
GB8326437D0 (en) 1983-11-02
GB2147356B (en) 1987-04-23

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 19961003