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In this model the cooling, oiling, sealing and ignition systems have been developed and, as well as other secondary devices, to equipping it with a stable operation independently of the time and work conditions.


COOLING

The cooling system is mixed, being made fundamentally by air forced on the outer surface of the cylinders (2a) of the rotor (2). The oil flow inside the stator (1) and inside the rotor, completes the refrigeration. The cylinders are shaped with wings externally. The flywheel (9) works as well like fan. When turning, their fans (9b) force to the air to circulate on the outer surface of the cylinders. The heat transference from the cylinders to the air is helped by two movements: the movement of the air that moves axially helped by the fan of the flywheel, and another one is the movement of the own cylinders, that when turning, affect this airflow perpendicularly. Of this form the cooling of the cylinders is very balanced in its entire surface. In operation, the interior of the rotor is crossed by a continuous lubricant flow in the form that will be explained in the oiling section. This lubricant at the same time that greases, cool the internal rotor and stator surfaces.

IGNITION

The ignition is made by a conventional system made up with the spark plug and a distributorless electronic ignition device (14) (DEI). The sensor will be installed on the flywheel, where the magnetic control pin (14b) is inserted. The position of the spark plug (6) allows an advance to the ignition of until 60 degrees. The engine also is able to operate with a system of continuous or synchronous injection of the fuel, being able to work in the "Miller" cycle.

OILING (fig. 26)

The oiling is made by forced oil flow, not being necessary to add it to the fuel. The lubricant is deposited in the carter (1j). From the carter the oil is aspired by a pump of gears (8) that is dragged by the flywheel gear. The pump impels the lubricant at a first moment towards the chamber of the oiler roller (11). This roller rotates dragged by the central band of the seals (13) that also rotates with the rotor. The function of the roller is lubricate and cool this central band, against which it is applied, impregnating it a fine film of lubricant when it turns. When the roller contacts with the central band of seals, this one pushes it outwards, and the oil that is to pressure in its chamber is expelled by the groove (1q) practiced in the stator. When the roller lets be in contact with seals, which takes place to the passage of the cylinders, its spring (11b) applies against the stator, closing the window and the passage to it of the oil.

From the oiler roller chamber the oil flow is led inside through the shaft support arm (1l) toward the output shaft (2d), by whose interior channel (2j) is geared toward the crankshafts (5), lubricating them. From here go across inside the connecting rods (4) and will be geared toward the heads of these lubricating them to be finally expelled toward the interior of the pistons (3), to refrigerate them. From here the lubricant is centrifuged by the rotor, being expelled through the crankcase windows (2l) toward the periphery of the rotor, lubricating the internal circular surface of the stator. From here the lubricant will fall by gravity by the filler outlet (1i), going to deposit itself again to the carter.

The toric seals (2k) along with the rotor outer seals (2i) provide a complete airtightness inside the rotor, preventing any oil escape outside. The combustion gas drained will be made of conventional form by means of a connection conduit from the oil-filling plug to the carburettor.

SEALING (fig 17, 18, 19 and 20)

The pistons are sealed with three conventional segment seals (3a) for compression and oiling. The rotor semicircular seals are flexible and are anchored in the cylinders heads. Here, this seal is branching forming three semi-hoops seals segments in the form that is detailed in the drawings. Its force of expansion maintains continuously and uniformly applied them against the internal circular surface of the stator providing complete sealing, as much to the cylinders heads as to the intake and exhaust ports.

The expansion forces in a semicircular seal are as follows (figure 20):


A. - Recovery of circular profile torsion

B.- Force of recovery of the original radius (greater) on radio of the arc (1).

C.- Circular force of expansion on the radius of seals (2).

1.- The arc expands in radial direction, with regard to the rotor axis.

2.- The 3 semi-hoops expand in radial direction, with regard to the cylinder axis.

CARBURETION

A conventional external carburettor will be installed on the intake conduit.


AC-800.- PHOTOS (Push on the image to see a large photo)
1.-Side View 2.- Front View 3.- Perspective 4.- Rear View

5.- Rotor Cut 6.- Carter 7.- Stator 8.- Rotor Cut

9.- Stator 10.- Stator 11.- Rotor 12.- Rotor Cut

13.- Rotor 14.- Roller 15.- Seals 16.- Oiling

 

AC-800.- DRAWINGS

Figure 1.- Down Plant Figure 8.- E-E Stator Section Figure 15.- Rotor Rear View
Figure 2.- Upper Plant Figure 9.- Exhaust Port View Figure 16.- Rotor View
Figure 3.- Rear View Figure 10.- F-F Section Figure 17.- Cylinder Head
Figure 4.- Section A-A Figure 11.- G-G Position Section Figure 18.- Cylinder Head and Seal
Figure 5.- Section B-B Figure 12.- G-G Section Figure 19.- Cylinder Head and Seal Section
Figure 6.- Section C-C Figure 13.- Oil Pump Figure 20.- Sealing Details
Figure 7.- D-D Stator Section Figure 14.- Rotor Section Figure 26.- Oiling Circuit

 

 
AC-800 PARTS

Figure

n.

Part

4

1.-

Stator
1, 2, 6, 7, 8

1a.-

Intake port
1, 2, 5, 6, 7, 8

1b.-

Exhaust port
1

1c.-

Screws of the oiler roller
1, 2,

1d.-

Lubricating oil filler body
5, 10

1e.-

Planetary support arms
3

1f.-

Oil drain plug
7

1g.-

Oil filler inlet
1, 2

1h.-

Engine bearer
6, 7

1i.-

Oil filler outlet
4, 5

1j.-

Carter
2, 5

1l.-

Shaft support arms
4

1n.-

Oil pump input
1

1p.-

Oiler roller cap
6, 8

1q.-

Oiler roller groove
8

1r.-

Dowel
2, 8

1s.-

Upper screws
     
4,

2.-

Rotor
12, 14, 17, 19

2a.-

Cylinder barrel
17, 19

2b.-

Seals channel
18

2c.-

Seal bearer
15, 16

2d.-

Output shaft
12

2g.-

Cylinder head
16

2h.-

Dowel
14

2i.-

Rotor outer seals
14

2j.-

Oil central channel
5, 16

2k.-

Toric outer seals of the rotor
4, 16

2l.-

Crankcase window
     
12

3.-

Piston
14

3a.-

Piston seals
14

3b.-

Gudgeon pin
     
14

4.-

Connecting rod
     
12, 14

5.-

Crankshaft
14

5a.-

Balance weight crankshaft
     
2

6.-

Spark plug
     
12, 15

7.-

Satellite
     
1, 5, 13

8.-

Lubricating oil pump
13

8a.-

Gears
13

8b.-

Pump input channel
13

8c.-

Pump output channel
3, 13

8d.-

Pump gear
1, 4

8f.-

Oil input filter
     
1, 3, 5

9.-

Flywheel
3, 5

9a.-

Screw
3

9b.-

Fan
     
1,2, 5

10.-

Pulley
5

10a.-

Pulley screw
     
10

11.-

Oiler roller
10

11a.-

Roller pusher
10

11b.-

Roller spring
10

11c.-

Oil input
8, 10

12.-

Fix planetary
10

12a.-

Screws
     
5, 12, 14, 16, 18, 19

13.-

Seals
17, 19

13a.-

Pusher spring
     
3, 9

14

Distributorless electronic ignition device
3, 9

14a

Flywheel sensor
3

14b

Control pin
3

14c

Spark plug wire

1.- FRONTPAGE 2.- MENU
3.- ENGINE INTRODUCTION 4.- ENGINE DESCRIPTION
5.-ENGINE OPERATION 6.- ENGINE PARTS
7.- ADVANTAGES 8.- THRUST SEQUENCE
9.- COMPARATIVE AND CONCLUSION  


Antonio Sánchez 1997-2007. Málaga (Spain)