GB2195145A

GB2195145A - Rotary I.C. engine

Info

Publication number: GB2195145A
Application number: GB08718235A
Authority: GB
Inventors: Carlos Duarte Cardoso
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-07-31
Filing date: 1987-07-31
Publication date: 1988-03-30
Anticipated expiration: 2007-07-31
Also published as: IT1222174B; FR2602269A1; JPS6338616A; PT83113A; PT83113B; DE3724298A1; IT8721497A0; GB8718235D0; GB2195145B

Description

1 GB2195145A 1

SPECIFICATION

Rotary internal combustion engine This invention relates to an internal combustion engine.

The engine to be described has the following characteristics:

Rotary, because its main parts do not have an alternative linear movement and supply work directly in rotational motion.

Simultaneous periods, because the main periods: intake, compression, power and exhaust are simultaneous about 260' in every 360' of each rotation.

Differential, because the spangles (by analogy with an alternative enginethe piston) only move the difference between the perimeters of the compressor and engine elements, and the perimeters of their liners; they have rotative motion with the same speed of the rotor.

An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:

Fig. 1 is a cross sectional view showing the general assembly of the embodiment of the invention Fig. 2 shows portions of a frame of the embodiment of figure 1 Fig. 3 shows a cover of the embodiment of figure 1 Fig. 4 shows a bracket cover for pipes, jerk pump and starting motor of the embodiment of 20 figure 1 Fig. 5A and 513 show a shaft including a disc and a cam of the embodiment of figure 1 Fig. 6 shows a compressor element of the embodiment of figure 1 Fig. 7 shows a separator disc of the embodiment of figure 1 Fig. 8 shows a power element of the embodiment of figure 1 Fig. 8A shows a blade (with sectorial movement) of the embodiment of figure 1 Fig. 9 shows two liners of the embodiment of figure 1 Fig. 10 shows a power shaft including a disc of the embodiment of figure 1 Fig. 11 shows a pressure roll of the embodiment of figure 1 The components shown in figures 2 to 11 are identified by their respective figure number in 30 figure 1.

The following further reference numerals are shown in figure 1.

1 Fig. 1 -Ref. 12-injection pump Fig. 1 -Ref. 12A-Injector 35 Fig. 1 -Ref. 13-Combustion chamber Fig. 1 -Ref. 14-Plug Fig. 1 -Ref. 15-Electrical collector ring Fig. 1 -Ref. 16-Inlet pipe Fig. 1 -Ref. 17-Exhaust pipe 40 Fig. 1 -Ref. 18-Toothed starter wheel Fig. 1 -Ref. 19-Valves This engine is composed of: a rotor which includes two cylindrical elements namely: a compressor element (figure 6) and a power element (figure 8). They have on each side discs that are part of the power shaft (figures 5 and 7), and, a disc that separates the two elements (figure 7). All of these are stoutly tightened together by stay-screws, so forming the engine rotor. Between the discs that flank the compressor and the power elements, are disposed liners (figure 9) with greater diameters, each staying in a free way between the discs and tangentially to its respective element. Because of the difference of diameters between the compressor and 50 power elements and the liners, and because they are set up in a tangential way flanked by the discs, crescent moon shaped chambers are formed.

In each element, compressor and power, a blade is disposed (figure 8A) in a way that when a rotative motion exists, the spaces before and after the blade vary and give rise to compressions and expansions; Thus, in the compressor element, the inlet period and the air or explosive mixture compression occur. In the power element, the power and exhaust periods occur. Every period, though not totally coincident, is simultaneous.

In Fig. 1 (Assembly) are shown the circuits:

2 GB 2 195 145A 2 ...... Air intake system - - burnt gases ...........

Fuel system - Electrical system Operation When the engine starts its rotational movement, a space is created after the blade of the compressor element, which being in free communication with the atmosphere creates the intake period. At the same time it reduces the space before the same blade and, consequently the compression period occurs. When the compression period ends, the power period begins and the gases are delivered at the former of the blade of the power element giving rise to the power period. In the hinder part of the blade, and simultaneously, the exhaust period occurs. This engine, may be considerated of simultaneous periods or a one-stroke cycle engine.

Advantages Less initial costs. Less maintenance costs. Greater mass efficiency, greater in big power engines.

Better overall efficiency.

Less initial costs, because of its reduced number parts and its simplicity of construction.

Less maintenance costs due to the previous conditions and to the characteristic that when the elements, side discs and its liners are worn out, every part is recoverable accepting many rectifications.

Greater mass efficiency because it is a rotary engine, well-balanced, high speed running with big weight and diameter.

Better overall efficiency because power is directly applied in rotative motion and because power period has large duration.

Other advantages: because of its form this engine has a little sliding friction and because of 35 this it may avoid partially or totally the classical lubrication and with a correct materials applica tion it may also avoid the classical cooling system by using the intake air correctly directed to protect the elements which need more cooling and maintain the assembly within a working thermic limit.

Claims

1. A rotary internal combustion engine in which: its stationary structure has frames tightened by stay-screws or by a cover.

2. A rotary engine according to claim 1, further comprising two elements with cylindrical 45 shape one having compressor functions and the other power functions.

3. A rotary engine according to claim 2, wherein the compressor and power elements are flanked by discs that have greater diameters than the elements and the external discs include a cam shaft.

4. A rotary engine according to claim 3, wherein the elements and discs are stoutly tightened 50 together by stay-screws.

5. A rotary engine according to any one of claims 2 to 4, wherein each compressor and power element is surrounded by a liner of greater diameter and is disposed tangentially to the liner.

6. A rotary engine according to claim 5, wherein the liners are freely movable between the 55 discs.

7. A rotary engine according to claim 6, in which each compressor and power element has a blade with sealing means that separate moon shape chambers defined between the spaces formed between the compressor and power element, respective liners and discs that flank the elements.

8. A rotary engine according to any one of claims 5 to 7, wherein the relative tangential 60 speed between the tangentially disposed external edge of the compressor and power elements and the internal edge of the respective liners, is nul.

9. A rotary engine according to claim 7, wherein the sliding movement between respective blades and liners is by rotation of the blade equal to the difference of the external perimeters of the respective compressor and power elements and the internal perimeters of the respective 3 GB2195145A 3 liners.

10. A rotary engine according to any one of claims 1 to 9, wherein the combustion chamber is disposed inside of the compressor and power elements that communicate by channels and valves.

11. An internal combustion engine comprising a compressor element and a power element, each element being of generally cylindrical form and eccentrically disposed in a hollow cylindrical chamber of larger diameter so as to be in contact with a side of the chamber and each element having a blade member movable in dependence upon the rotational position of the element to divide a space between the element and chamber and effect a seal, rotation of each element producing regions ahead and behind the respective blade member of changing volume, the chambers being in selective fluid communication and the relative disposition and timing of the elements being such that inlet compression power and exhaust phases may be produced in respective said regions.

12. A rotary engine substantially as hereinbefore described and illustrated, with reference to the accompanying drawings.

Published 1988 at The Patent Office, State House, 66/71 High Holborn, London WC 1 R 4TP. Further copies may be obtained from The Patent Office, Sales Branch, St Mary Cray, Orpington, Kent BR5 3RD. Printed by Burgess & Son (Abingdon) Ltd. Con. 1/87.