Asender Engine Description

Detailed description of the invention:
The main part is the elliptical shape of the rim which besides redirecting the vertical movement of the pistons into rotational torque also keeps all parts of the engine in synchronization with each other, the internal of the engine is stationary and the rotating part is the rim which also acts as a camshaft and a camshaft of the engine without the use of timing belt or gearing, no need for oil pump as the moving parts splash the oil to the parts that need lubrication in the block.

The X shape layout of the common Otto cycle pistons situated back to back (fig.1) that the force of the expanding volume of the combusting fuel is directed outwards, the connecting rods (9) which has push bearing on top (12) pushes the ellipse outwards in clock wise direction and due to the guiding arm (10) retains in contact with the ellipse in an arc trace (locus) in order to extract all the power produced from the piston and convert it into rotation of the rim.

The connecting rod and the guide arm in conjunction with the ellipse converts the up down movement of the pistons into rotational torque, the rim acting as a crankshaft. Any and all of the pistons complete the Otto full cycle in one revolution of the rim.Piston1 fig.1 is in compression stroke, piston 2 (fig.1) is in force stroke, piston3, (fig.1) is in induction stroke, piston4, and (fig.1) is in exhaust stroke.

fig1

The power delivered as torque to the rim is 4 power strokes in each rotation, push bearings in contact with the inner surface of the ellipse keeps contact with the rim in the power stroke of the piston while minimizing the friction, pull bearings (13) on both sides of the connecting rod keep contact with the inner ellipse guide (6) in order to pull up the piston in the induction stroke of the piston, position 1,3 are compression and exhaust strokes successively and are achieved by the ellipse rim pushing down the pistons by push bearings and connecting rods.

fig2

Fig.2 the valves are kept in synchronization with the required Otto cycle by bearing (19) and (19-) in collaboration with the tooth (7) for bearing (19) to open the inlet valve and tooth (7-) for bearing (19-) to open the exhaust valve, the closing of the valves is done by springs (16), the tooth (7) is made in a manner fig.2 with consideration of radius of curvature of bearing (19) to minimize panging and the end side of the tooth to reduce noise and allow the bearings and valves to open and close in smooth operation, unlike the valves using a cam shaft in the conventional engine which does not give the valves long time to stay open, rather opens slowly and when it reaches peak position opened it starts closing again, in the method used in this invention the valves stay fully open for nearly 70% and more in the peak position of the time of induction and exhaust cycles, which in turn reduces the effort on the pistons trying to fill the cylinder or exhaust fumes through a smaller opening while it reduces the opening ,thus giving the affect of Otto cycle with easier valve control without the use of camshaft and timing built. The displacement between the teeth of the inlet valve and exhaust valve controls is equal to the physical distance between bearing (19) and (19-) taken into consideration the valve timing required to obtain maximum efficiency of the Otto cycle, fig.4 graph of comparing a conventional valve and the valve in this invention, the area under both curves indicate the total opening achieved in one induction or exhaust cycles, clearly the control in this invention achieves better than 2 conventional camshaft valves.
The mixture is passed to the pistons via passages (40) fig.3 depending on the valve opened; the exhaust fumes are discharged by the inwards going piston with its valve open through passage (41).
The conventional spark plugs (22) are placed as fig.4 with wiring passing all the way through holes (33).
The sleeves of the pistons are flanged in order to increase the surface area and result in better conduction of heat to the water based heat transferring liquid conversing the heat to the exterior through hole (43) as input and (42) in fig.3 as output.
Lubrication of the inner surface of the ellipse and the push bearings (12) is maintained by the centrifugal force acting on the lubrication to stay on the surface, lubrication of pistons is done by the lubricating liquid splashed by the connecting arm, guide arm and the up down movement of the pistons themselves.
The lubricant enters the ellipse through hole (24) and exit thought the hole from the other side.

Claims
Continuous Otto piston elliptical engine comprising:

1. Cylinder with 4 pistons in a form of X shape, A stationary cylinder (fig.2) No.2 including:

An X shape layout of the common Otto cycle pistons in a single block (No.2 fig.2).
A coolant inlet port, a coolant outlet port (No42,43 fig.3).
The way of installing the valve in the cylinder (No.49,50 fig.3) including a valve case (No.15 fig.2).
Lubrication of pistons is done by the lubricating liquid splashed by the connecting arm, guide arm and the up down movement of the pistons themselves (No.29 fig.2).
The conventional spark plugs are placed in the cylinder (No.36 Fig.2).
A contact between the guiding arm and the connecting rod which make an arc trace which force the ellipse to rotate (No.29 fig.2).
The holes the sparkplug cables pass through (No.32 fig.2).
A pressure relief passage (No.46 fig.3).
A groove in the cylinder connects the guiding arm (No.25 fig.2).
The groove can be replaced by an external part of the cylinder (fig.5).

2. an ellipse (No.1, 3 fig.2) including:

An inner ellipse guide which pulls up and push down the piston in the induction stroke (No.6 fig.2).
A cam tooth in the ellipse which synchronize the opening and closing of the valves (No.7 fig.2).
The oil enters the ellipse from hole (No.24 fig.2) and exit from the other side of the ellipse.

fig3

Engine parts:
1 - Rear ellipse
2- Cylinder
3- Front ellipse
4- Bearing - 2 pieces
5- Oil ring - 2 pieces
6- Piston induction
7- Camshaft
8- Piston - 4 pieces
9- Connecting arm - 4 piece
10- Connecting arm guide - 4 pieces
11- Connecting arm bearings pin - 4 pieces
12- Push bearings - 8 pieces
13- Pull bearings - 8 pieces
14- Valve - 8 pieces
15- Valve casing - 8 pieces
16- Valve spring - 8 pieces
17- Valve spring lock washer - 8 pieces
18- Rocker arm
19- Rocker arm bearing
20- Valve adjuster - 8 pieces
21- Guide arm Pin - 4 pieces
22- Spark plug - 4 pieces
23- Piston pin - 4 pieces
24- Oil hale - 2 hale
25- Guide groove - 4 hale
26- Front bearing set
27- Rear bearing set
28- Liner - 4 pieces
29- Piston set
30- Valve set
31- Flywheel attaché
32- Bolt hale -6
33- Spark plug cable hale- 4
34- Guide arm pin - 4
35- Ellipse jointer - 24
36- Spark plug seat -4
37- Guide and connecting rod pin -4
38- Guide and cylinder pin-4
39- Piston pin-4
40- Mixture Intake -4
41- Exhaust
42- Coolant outlet
43- Coolant inlet
44- Pressure relief
45- Rocker fixture -4
46- Pressure relief
47- Spark plug cabal -4
48- Fixing arm -12
49- Exhaust valve -4
50- Intake valve -4

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