WO2005005790A1 - Valve rotative pour moteurs a combustion interne - Google Patents

Valve rotative pour moteurs a combustion interne Download PDF

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Publication number
WO2005005790A1
WO2005005790A1 PCT/AU2003/000894 AU0300894W WO2005005790A1 WO 2005005790 A1 WO2005005790 A1 WO 2005005790A1 AU 0300894 W AU0300894 W AU 0300894W WO 2005005790 A1 WO2005005790 A1 WO 2005005790A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
coolant
inlet
rotary valve
head
Prior art date
Application number
PCT/AU2003/000894
Other languages
English (en)
Inventor
John Douglas Ramsey
Original Assignee
The Ramsey Valve Company Pty Ltd
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 The Ramsey Valve Company Pty Ltd filed Critical The Ramsey Valve Company Pty Ltd
Priority to AU2003243828A priority Critical patent/AU2003243828A1/en
Priority to PCT/AU2003/000894 priority patent/WO2005005790A1/fr
Publication of WO2005005790A1 publication Critical patent/WO2005005790A1/fr

Links

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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/20—Multi-cylinder engines with cylinders all in one line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
    • F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
    • F01L7/021—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with one rotary valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/12—Arrangements for cooling other engine or machine parts
    • F01P3/14—Arrangements for cooling other engine or machine parts for cooling intake or exhaust valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/024—Belt drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00—Liquid cooling
    • F01P3/02—Arrangements for cooling cylinders or cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps

Definitions

  • This invention relates to a rotary valve for internal combustion engines, more particularly to a rotary valve adapted to control both the inlet and exhaust ports of one or more cylinders of the internal combustion engine.
  • Rotary valves to control the gaseous flow into and out of the ports of an internal combustion are suited to engines intended to operate at high revolutions.
  • the convention poppet valve has been very successful at higher engine revolutions, but at high revolutions strong springs are required to instantly close the valve. This results in great stresses on the valves and the valve seat and also stresses on the cam and, rockers and rocker shaft. In addition the high spring pressures result in a greater power being required to operate the valves.
  • One of the problems with rotary valves is the cooling of the valve, particularly with a rotary valve on an engine having a plurality of in-line cylinders, there is produced a large temperature difference between the ends of the valve, the exhaust gasses exiting from one end of the valve.
  • Figure 1 is a cross-section of the first or exhaust end of the rotary valve
  • Figure 2 is a cross-section of the second or inlet end of the rotary valve
  • Figure 3 is a view of the relucter wheel for the ignition system and fuel injector
  • Figure 4 is a view of the axial flow turbine blades for the air flow through the valve rotor
  • F gure 5 s a cross sectional view of the valve head and cap
  • F gure 6 s a cross sectional view of the rotary valve, head and cap
  • F gure 7 s a diagrammatic view of the cooling system
  • F gure 8 s an alternate view of the second end as shown in Figure 2.
  • the valve assembly 1 includes the head 2 and cap 3 enclosing the rotor 4.
  • the rotor 4 has three spiral channels extending from end to end of the rotor4, an inlet channel 5, an exhaust channel 6 and a coolant channel 7.
  • the spiral inlet channel 5 and spiral exhaust channel 6 have openings to pass over the respective ports 8 in the head, Fig 1 , opening into the respective cylinder of the engine as described in the above prior Patent 696388.
  • the exhaust channel 6 is connected to an exhaust tube 9 rotatable with the rotor 4 supported in bearing 10. in housing 11.
  • a coolant inlet 12 opens to a water turbine 13 to pump coolant through the coolant channel 7 in the rotor 4 through passage 14 Fig 7.
  • the coolant outlet 15 extends from housing 16. Also shown is a second coolant turbine 17 to assist in ensuring there is an adequate coolant flow through the rotor 4.
  • the rotor 4 is supported at this end by a further bearing 18 and is driven by a lugged belt 19 driving pulley 20 attached to the rotor 4.
  • a relucter wheel 21 shown also in Figure 3.
  • the relucter wheel 21 has a plurality of soft magnets 22 Figure 3 and index teeth 23 on the periphery of the relucter wheel so that during operation the magnets pass a magnetic sensor 24.
  • the electrical impulses so produced are the timing impulses for the operation of the engine, that is the fuel injector 25 and spark plug 26 Figure 5.
  • an air turbine 27 as illustrated in Figures 2, 4 and having main vanes 28 and secondary vanes 29.
  • the turbine 27 draws air through an air channel and venturi 30 supplied through a pair of air inlets 31 and 32 Figure 8 each connected to separate filters. In this way by the provision of two inlets 31 and 32 each having their respective filter the resistance to air flow to the turbine 27 is minimised.
  • the rotor 4 is lubricated by lubrication injectors 33 Figure 5 positioned along the cap 3, there being one injector per cylinder.
  • the injectors are positioned after the ports 8 in the direction of rotation of the rotor 4.
  • the surplus lubricant is removed from the rotor by scraper bars 34 through a non-return valve 35.
  • the scraper bars extend along the rotor 4 for the distance corresponding to the width of the ports 8.
  • the balancing of the rotor is carried out by using 4 equispaced sand removal core holes in each end of the rotor, machined out to take threaded balancing slugs 4a Figure 1 , which can be inserted at various lengths and mass to dynamically the rotor.
  • the engine cooling circuit is shown on Figure 7 the coolant flows through the rotor 4 from inlet 12 through the rotor to the outlet 15.
  • the coolant then passes through pipe 36 to enter the engine block 37.
  • the coolant passes through the cooling passages in the engine block and then through cooling passages in the head 2 Figure 6 and cooling passages 38a in the cap 3.
  • Pipe 38 is connected to an outlet 39 in the cap to pass the hot coolant to the radiator 40 from which the cool coolant passes through pipe 41 to the inlet 12 to the rotor.
  • the outlet 39 in the cap is shown toward the exhaust end of the rotary valve it is to be realised this can be positioned along the cap to ensure an even temperature on the all cylinders and along the rotor housing. Depending upon the temperature variations more than one outlet 39 may be required spaced along the cap.
  • an improved rotary valve system for multicylinder internal combustion engines.
  • the air supply to the cylinders through the rotary valve is boosted by the axial flow turbine fed by streamlined air- inlets 31 and 32 Figure 8, feeding the air direct into the venturi of the axial flow turbine.
  • the air turbine is driven at the same speed as the rotor by the toothed belt from the crankshaft of the engine.
  • the provision the relucter wheel and sensor driven at rotor speed ensures the correct timing of the injector and spark plug.
  • the rotor runs at half the crankshaft speed, and thus the relucter will have twice the number of keys compared to a relucter driven by or attached to the crankshaft.

Landscapes

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

Abstract

La présente invention concerne une valve rotative (1) conçue pour un moteur à combustion interne ayant une pluralité de cylindres en ligne, ladite valve rotative (1) comportant un rotor susceptible de tourner entre une tête et un capuchon boulonné sur le moteur, une pluralité de passages en spirale ouvrant par l'intermédiaire d'orifices (8) sur une ouverture d'accès aux cylindres, une turbine à air (27) transférant l'air de combustion à travers l'un des passages en spirale, un passage d'échappement et un passage pour fluide caloporteur, un moyen assurant la circulation du fluide caloporteur à travers le rotor, et la tête et le capuchon du bloc-cylindres jusqu'à un radiateur et jusqu'à l'orifice d'admission vers le passage pour fluide caloporteur dans le rotor. Une roue à réluctance (21) commandée par le rotor assure la temporisation pour le fonctionnement du moteur.
PCT/AU2003/000894 2003-07-11 2003-07-11 Valve rotative pour moteurs a combustion interne WO2005005790A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003243828A AU2003243828A1 (en) 2003-07-11 2003-07-11 Rotary valve for i.c. engines
PCT/AU2003/000894 WO2005005790A1 (fr) 2003-07-11 2003-07-11 Valve rotative pour moteurs a combustion interne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/AU2003/000894 WO2005005790A1 (fr) 2003-07-11 2003-07-11 Valve rotative pour moteurs a combustion interne

Publications (1)

Publication Number Publication Date
WO2005005790A1 true WO2005005790A1 (fr) 2005-01-20

Family

ID=33569221

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2003/000894 WO2005005790A1 (fr) 2003-07-11 2003-07-11 Valve rotative pour moteurs a combustion interne

Country Status (2)

Country Link
AU (1) AU2003243828A1 (fr)
WO (1) WO2005005790A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009047566A1 (fr) * 2007-10-12 2009-04-16 Gordon Mcnally Joint d'étanchéité pour une vanne rotative pour un moteur à combustion interne

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2460164A1 (de) * 1974-12-19 1976-06-24 Volkswagenwerk Ag Mit einer brennstoffeinspritzung versehene verbrennungskraftmaschine
US4198946A (en) * 1977-06-03 1980-04-22 Rassey Louis J Rotary valve construction for an internal combustion engine
EP0285539B1 (fr) * 1987-03-30 1991-12-18 Lopez Garcia-Monge, Maria Guadalupe Carmen Dispositif d'admission et d'échappement par arbre à orifices rotatif dans des moteurs à quatre temps
WO1995034747A1 (fr) * 1994-06-14 1995-12-21 Kutlucinar Iskender V Tiroir tournant pour moteur a combustion interne
WO1996032569A1 (fr) * 1995-04-10 1996-10-17 John Douglas Ramsey Tiroir de rotation pour moteur thermique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2460164A1 (de) * 1974-12-19 1976-06-24 Volkswagenwerk Ag Mit einer brennstoffeinspritzung versehene verbrennungskraftmaschine
US4198946A (en) * 1977-06-03 1980-04-22 Rassey Louis J Rotary valve construction for an internal combustion engine
EP0285539B1 (fr) * 1987-03-30 1991-12-18 Lopez Garcia-Monge, Maria Guadalupe Carmen Dispositif d'admission et d'échappement par arbre à orifices rotatif dans des moteurs à quatre temps
WO1995034747A1 (fr) * 1994-06-14 1995-12-21 Kutlucinar Iskender V Tiroir tournant pour moteur a combustion interne
WO1996032569A1 (fr) * 1995-04-10 1996-10-17 John Douglas Ramsey Tiroir de rotation pour moteur thermique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009047566A1 (fr) * 2007-10-12 2009-04-16 Gordon Mcnally Joint d'étanchéité pour une vanne rotative pour un moteur à combustion interne

Also Published As

Publication number Publication date
AU2003243828A1 (en) 2005-01-28

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