GB2052633A - Rotary Charge Mixing Devices for I.C. Engines - Google Patents

Rotary Charge Mixing Devices for I.C. Engines Download PDF

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Publication number
GB2052633A
GB2052633A GB8019408A GB8019408A GB2052633A GB 2052633 A GB2052633 A GB 2052633A GB 8019408 A GB8019408 A GB 8019408A GB 8019408 A GB8019408 A GB 8019408A GB 2052633 A GB2052633 A GB 2052633A
Authority
GB
United Kingdom
Prior art keywords
bearing
petrol
inlet manifold
bladed member
chamber
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.)
Withdrawn
Application number
GB8019408A
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.)
Kohler Mira Ltd
Original Assignee
Kohler Mira 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 Kohler Mira Ltd filed Critical Kohler Mira Ltd
Priority to GB8019408A priority Critical patent/GB2052633A/en
Publication of GB2052633A publication Critical patent/GB2052633A/en
Withdrawn legal-status Critical Current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
    • 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
    • F02M29/02—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having rotary parts, e.g. fan wheels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

A device for installing between the carburettor and the inlet manifold comprises a body 1 which defines a chamber 3 in which a multi-bladed member 4 is mounted between bearings 5, 6 for rotation on induction of the petrol/air mixture to increase mixing of the mixture. The member 4 comprises a vaned element having four vanes and a shaft 13 which rotates with the element. The shaft is supported between the bearings, and one bearing is adjustable by means of a webbed ring 9 and a pair of locking rings 10 and 11. <IMAGE>

Description

SPECIFICATION Improvements in Volumetric Efficiency of l.C.
Engines This invention concerns improvements in or relating to the volumetric efficiency of internal combustion engines, and particularly reiates to the consumption of petrol in I.C. engines.
It is an object of this invention to provide a device for improving the burning of petrol/air mixture by producing a fine mixture of petrol/air in the inlet manifold of the I.C. engine.
According to this invention, we provide a device for installing in an l.C. engine between the carburettor and the inlet manifold, the device comprises a body defining a chamber through which the petrol/air mixture is induced, and a multi-bladed member mounted in the body to rotate when the induced mixture flows through the chamber to further mix the petrol/air mixture prior to induction through the inlet manifold.
Preferably, the body comprises mountings for connecting the device between the inlet manifold and the carburettor. The multi-bladed member is supported for free rotation on bearings, and preferably the position of at least on bearing in the chamber is adjustable to set up and adjust the multi-bladed member.
The mult-bladed member may comprise a central hub being carried by a shaft supported on the bearings. The vanes or blades may be of fixed pitch, and four vanes are perferred. The multibladed member is conveniently made of a corrosion resistant light alloy such as an aluminium alloy. The body may be made of brass or other suitable metal.
A device according to this invention has been subjected to trials in stationary and automotive l.C. engines, and considerable savings in fuel consumption have been achieved.
An exemplary embodiment of this invention will now be described with reference to the accompany drawing wherein.
Figure 1 is an axial section of the device; and Figure 2 is an end view of the device taken in the direction of Arrow A.
With reference to the drawings, the device comprises a body 1 machined from brass and being substantially of right-cylindrical shape with two external flanges 2 through which the device can be bolted between the inlet manifold and a carburettor of an l.C. engine. Any suitable arrangement of flanges or fixings may be provided.
The body 1 is hollow and defines an axially extending chamber 3 through which the petrol/air mixture will flow in service, the flow being the induced flow from the engine.
Within the chamber 3 there is disposed a multi-bladed member 4 which is supported between two axially spaced bearings 5 and 6. The bearing 5 comprises a hollow tubular support portion from which a threaded lug 7 projects. The lug 7 is arranged to extend through a diametral web 8 of the body and a screwed fastener or nut (not shown) secures the bearing 5 in place with the bearing being located in a recess formed in the web 8. Conveniently, the bearing 5 is made of brass or other suitable bearing metal.
The bearing 6 is of similar form but is located in the body 1 by a webbed mounting ring 9 which is secured in the body between two externally threaded locking rings 10,11 respectively on either side of the ring 9. The bore of the body is threaded internally to engage the locking rings 10 and 11 so that the position of the bearing 6 can be adjusted. As with the bearing 5, the bearing 6 can be adjusted. As with the bearing 5, the bearing 6 has a threaded lug 12 for threaded engagement with a suitable nut or fastener (not shown).
The multi-blade member 4 comprises a shaft 13 mounting the hub of a light-weight vaned element having four vanes 14 which are of the same shape and pitch. Preferably the vaned element is made of aluminium or brass sheet and is a pressing from sheet material, and it is secured to or located on the shaft 13 for rotation therewith. The vaned element may be made from stainless steel, moulded from a suitable grade of plastics material such as a polymer or co-polymer suitable for engineering products of this type, or be a casting such as made by investment casting process in a suitable metal.
The shaft 1 3 is made of hardened steel and has angular pivot faces at each end for engagement within the respective bearings 5 and 6.
As will now be understood, the device provides a through passageway for the petrol/air mixture induced from the carburettor to the inlet manifold, and on flow of the mixture to the inlet manifold, the flow of the mixture causes the multi-bladed member to rotate so that it spins within the chamber and causas the mixture to be more finely mixed.
The device has been tried on various l.C.
engines, and it has been found that after adjustments to the carburettor, particularly adjusting the jet size, that the performance of the engine is maintained, but petrol consumption is substantially decreased.
Claims
1. A device for installing in an í.C. engine between the carburettor and the inlet manifold, the device comprises a body defining a chamber through which the petrol/air mixture is induced, and a multi-bladed member mounted in the body to rotate when the induced mixture flows through the chamber to further mix the petrol/air mixture prior to induction through the inlet manifold. 2.
The device according to claim 1 wherein the body comprises mountings for connecting the device between the inlet manifold and the carburettor.
3. The device according to claim 1 or claim 2 wherein the multi-bladed member is supported for free rotation on bearings located in the body.
4. The device according to any one of the preceding claims wherein the mult-bladed member comprises a hub from which vanes of
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (10)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Improvements in Volumetric Efficiency of l.C. Engines This invention concerns improvements in or relating to the volumetric efficiency of internal combustion engines, and particularly reiates to the consumption of petrol in I.C. engines. It is an object of this invention to provide a device for improving the burning of petrol/air mixture by producing a fine mixture of petrol/air in the inlet manifold of the I.C. engine. According to this invention, we provide a device for installing in an l.C. engine between the carburettor and the inlet manifold, the device comprises a body defining a chamber through which the petrol/air mixture is induced, and a multi-bladed member mounted in the body to rotate when the induced mixture flows through the chamber to further mix the petrol/air mixture prior to induction through the inlet manifold. Preferably, the body comprises mountings for connecting the device between the inlet manifold and the carburettor. The multi-bladed member is supported for free rotation on bearings, and preferably the position of at least on bearing in the chamber is adjustable to set up and adjust the multi-bladed member. The mult-bladed member may comprise a central hub being carried by a shaft supported on the bearings. The vanes or blades may be of fixed pitch, and four vanes are perferred. The multibladed member is conveniently made of a corrosion resistant light alloy such as an aluminium alloy. The body may be made of brass or other suitable metal. A device according to this invention has been subjected to trials in stationary and automotive l.C. engines, and considerable savings in fuel consumption have been achieved. An exemplary embodiment of this invention will now be described with reference to the accompany drawing wherein. Figure 1 is an axial section of the device; and Figure 2 is an end view of the device taken in the direction of Arrow A. With reference to the drawings, the device comprises a body 1 machined from brass and being substantially of right-cylindrical shape with two external flanges 2 through which the device can be bolted between the inlet manifold and a carburettor of an l.C. engine. Any suitable arrangement of flanges or fixings may be provided. The body 1 is hollow and defines an axially extending chamber 3 through which the petrol/air mixture will flow in service, the flow being the induced flow from the engine. Within the chamber 3 there is disposed a multi-bladed member 4 which is supported between two axially spaced bearings 5 and 6. The bearing 5 comprises a hollow tubular support portion from which a threaded lug 7 projects. The lug 7 is arranged to extend through a diametral web 8 of the body and a screwed fastener or nut (not shown) secures the bearing 5 in place with the bearing being located in a recess formed in the web 8. Conveniently, the bearing 5 is made of brass or other suitable bearing metal. The bearing 6 is of similar form but is located in the body 1 by a webbed mounting ring 9 which is secured in the body between two externally threaded locking rings 10,11 respectively on either side of the ring 9. The bore of the body is threaded internally to engage the locking rings 10 and 11 so that the position of the bearing 6 can be adjusted. As with the bearing 5, the bearing 6 can be adjusted. As with the bearing 5, the bearing 6 has a threaded lug 12 for threaded engagement with a suitable nut or fastener (not shown). The multi-blade member 4 comprises a shaft 13 mounting the hub of a light-weight vaned element having four vanes 14 which are of the same shape and pitch. Preferably the vaned element is made of aluminium or brass sheet and is a pressing from sheet material, and it is secured to or located on the shaft 13 for rotation therewith. The vaned element may be made from stainless steel, moulded from a suitable grade of plastics material such as a polymer or co-polymer suitable for engineering products of this type, or be a casting such as made by investment casting process in a suitable metal. The shaft 1 3 is made of hardened steel and has angular pivot faces at each end for engagement within the respective bearings 5 and 6. As will now be understood, the device provides a through passageway for the petrol/air mixture induced from the carburettor to the inlet manifold, and on flow of the mixture to the inlet manifold, the flow of the mixture causes the multi-bladed member to rotate so that it spins within the chamber and causas the mixture to be more finely mixed. The device has been tried on various l.C. engines, and it has been found that after adjustments to the carburettor, particularly adjusting the jet size, that the performance of the engine is maintained, but petrol consumption is substantially decreased. Claims
1. A device for installing in an í.C. engine between the carburettor and the inlet manifold, the device comprises a body defining a chamber through which the petrol/air mixture is induced, and a multi-bladed member mounted in the body to rotate when the induced mixture flows through the chamber to further mix the petrol/air mixture prior to induction through the inlet manifold.
2.
The device according to claim 1 wherein the body comprises mountings for connecting the device between the inlet manifold and the carburettor.
3. The device according to claim 1 or claim 2 wherein the multi-bladed member is supported for free rotation on bearings located in the body.
4. The device according to any one of the preceding claims wherein the mult-bladed member comprises a hub from which vanes of fixed pitch extend, and the hub is mounted on a shaft for rotation therewith.
5. The device according to any one of the preceding claims wherein the multi-bladed member is mounted in the body for adjustable movement.
6. The device accoding to claim 5 wherein the multi-bladed member comprises a shaft of which one end is mounted in an adjustable bearing.
7. The device according to any one of the preceding claims wherein the multi-bladed member comprises a hub from which four vanes of substantially the saime shape, size and pitch extend.
8. The device according to any one of the preceding claims wherein the body is substantially right cylindrical in shape and has a diametral web at one end for mounting the multbladed member.
9. The device according to claim 8 wherein the other end of the body is provided with an internal screw thread, and a webbed ring is secured within that end of the body between two threaded locking rings in threaded engagement with the internal thread of the body, the web of the ring mounting the multi-bladed member.
10. The device for installing in an l.C. engine substantially as hereinbefore described withe reference to the accompanying drawing.
GB8019408A 1979-06-27 1980-06-13 Rotary Charge Mixing Devices for I.C. Engines Withdrawn GB2052633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8019408A GB2052633A (en) 1979-06-27 1980-06-13 Rotary Charge Mixing Devices for I.C. Engines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7922380 1979-06-27
GB8019408A GB2052633A (en) 1979-06-27 1980-06-13 Rotary Charge Mixing Devices for I.C. Engines

Publications (1)

Publication Number Publication Date
GB2052633A true GB2052633A (en) 1981-01-28

Family

ID=26271984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8019408A Withdrawn GB2052633A (en) 1979-06-27 1980-06-13 Rotary Charge Mixing Devices for I.C. Engines

Country Status (1)

Country Link
GB (1) GB2052633A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478607A (en) * 1983-08-03 1984-10-23 Turra International, Inc. Device for atomizing and dispersing fuel in a fuel/air mixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4478607A (en) * 1983-08-03 1984-10-23 Turra International, Inc. Device for atomizing and dispersing fuel in a fuel/air mixture

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