FR2798160A1 - The rotary four stroke heat engine for automotive vehicles consists of a rotor which is fitted with a single paddle with rounded ends an engine blocks and a distribution disk having inlet and outlet ports - Google Patents

Abstract

The rotary heat engine consists of a rotor (6), a single paddle (4) which is rounded at both ends and engine blocks (1, 2), which have internally machined cavities which appear in the form of slightly flattened water droplets. A distribution disk (5), is fitted with the inlet and outlet ports. The rotor is constructed on the shaft of the engine, with a bulbous section at its center in the form of a torus.

Description

The present invention relates to a rotary type heat engine that can drive a vehicle, a generator and so on.

The heat engines generally employed are of the piston type. They are heavy, bulky and have many moving parts, which leads to complexity of manufacture.

Rotary type motors are also used, but they have sealing and reliability problems, sharp angles, difficult to cool and adjust laterally.

The device according to the invention overcomes these disadvantages.

The basic principle of the engine is a vane compressor. It has a single pallet that moves in constant contact with the internal machining of the engine. According to a first characteristic, the particularity of the motor consists of the particular shape of the torus-shaped rotor. This characteristic can be implemented in many types of rotary motors. According to a second characteristic, the pallet is rounded at its two ends. According to a third characteristic, the internal machining of the engine block has, in order to imitate, the shape of a taste of slightly flattened.

According to a fourth characteristic, a distribution system provided by a light disk closing or releasing openings on the blank of the engine block. When rotating the rotor the volumes vary on both sides of the pallet. We thus find the 4 times of a classic engine on both sides of the pallet. The advantages of this process are, firstly, ease of sealing on the rounded pallet thanks to a single segment all around its periphery. Second, the lack of segmentation on the rotor by the single pallet, and thirdly, a silent rotary distribution with few moving parts.

Embodiment of the invention by way of nonlimiting examples with a displacement of approximately 1000 cm 3:

The accompanying drawings illustrate the invention by transverse and longitudinal sections relative to the motor axis (ech '/ z). - On page <B> 115 </ B> Fig. Fig. 1 shows the engine in cross-section on page 215 Figl shows the engine in longitudinal section on page 3I5 Fig. 3 shows the rotor in longitudinal view Fig. 1 shows the rotor in transverse view on page <i> 4I5 </ i> Fig., S- represents the pallet in transverse view. 6 shows the pallet in longitudinal view On page <B> 515 </ B> Fig. `represents the disc in transverse view FIG. 8 represents the disc in longitudinal view. With reference to these diagrams, and by way of a limiting example, the present motor comprises a rotor (6).

This rotor (6) is one of the moving parts of the engine. is made of steel.

This rotor (6) is composed of a motor shaft having a diameter of 60 mm. This motor shaft is supported by two sealed bearings (8) and (9) in the engine block (1) and (2). It has its center a bulge in the shape of a torus. The diameter of the toroidal coil is 120 mm and the outer diameter of the rotor (6) is 180 mm. The rotor is split at its center.

This slot measures, from side to side 120120mm.

The rotor (6) has a lubrication and internal cooling system by oil circulation, as well as inside the slot of the linear needle bearings to facilitate the movement of the pallet (4).

A second mobile part of the motor is the pallet (4) .This pallet (4) made of aluminum alloy is lightened to the maximum by internal hollow parts. This pallet (4) has a thickness of 20 mm and measures 220I120 mm. It is terminated at both ends by rounds with a radius of 60 mm.

A guiding chamfer (14) is arranged on the other hand of the roundings of the pallet (4).

These chamfers (14) receive bronze reinforcements to guide the lateral displacement of the pallet.

Over its entire periphery, the pallet (4) is arranged groove to receive a cast iron segment (13). This makes it possible to seal. This cast iron segment (13) remains plated thanks to a compensating segment.

The pallet (4) moves longitudinally in the rotor (6) which it passes through, and drives it in its rotation.

The periphery of the pallet (4) is in permanent contact with the entire machined inner surface of the engine block (1) and (2).

A third moving part of the engine is the disk (5). It is made of stainless steel. The disc (5) is freely fitted on the motor shaft and is carried by the bearing (7). It turns at speed. Its outside diameter is 180 mm and its thickness is 14 mm.

The disk (5) is extended at its center by an inner bore of 61 mm and 72 mm outside bore. The disc (5) is driven from the outside of the engine like all other accessories (igniters, oil pumps, pump, etc.) thanks to a toothed belt.

On the disc are provided intake ports () and exhaust (17) which seal or release the openings in the engine block (2).

The greasing of the disc is ensured by oil under pressure.

The static part of the motor is represented by the motor block (1) and (2).

The engine block (1) and (2) has a substantially cylindrical outer shape. It is made of cast iron and cooled by an internal liquid circuit (15). It is drilled at its center to receive the motor shaft on the bearings (8) and (9).

The engine block (1) and (2) has a curved inner shape, which allows it to receive the rotor and the pallet.

The machining of the motor unit resumes in hollow torus for 1I3 the shape of the bulge of the rotor (6) in a slightly greater radius, ie 93 mm.

 For the 1I3 laterally opposite, it takes the form of the rotor bulge (6) into a hollow torus of radius significantly greater than 40 mm, or 130 mm.

The two 1/6 intermediately connecting the surfaces thus obtained.

This overall shape of the machining can be vaguely assimilated to the shape of a drop of slightly flattened hollow water.

It is imperative that the internal machining of the motor block (1) and (2) allows the permanent contact of the pallet over its entire periphery during the rotation. In the part (2) of the engine block are arranged three openings one for the admission (11) on the blank near the axis, an exhaust (12) on the blank more outside and one in the periphery to receive the candle (10).

The flange (3) is substantially cylindrical and is pierced centrally to receive the disk <B> (5). </ B> Two openings are arranged in its side, opposite those arranged on the block (2), one for the exhaust (12) and another for the intake (11). The intake and exhaust pipes are fixed on the flange in front of the respective openings.

 Principle of operation The variation of the volume of the gases located on both sides of the pallet (4) and the opening and the closing of the covers (11) and (12) allows the operation of the motor according to four cycles admission, compression, explosion and exhaust.

According to a variant not shown, the motor may comprise two rotors and two disks to improve flexibility and double the displacement. In this case, so that the axis is in one piece, the motor unit can be assembled in the engine plane. According to a second variant not illustrated, a small view on the periphery of the engine can be arranged to allow quick and easy replacement of the pallet.

According to a third variant not illustrated, the pallet may comprise in its center a play catch system with springs.

According to a fourth variant not illustrated, the internal engine block machining composed of several portions of hollow cores, can be applied to many types of oscillating piston vane engines.

Claims (6)

1) Rotary type thermal engine characterized in that comprises a rotor (6) of toric form; a single pallet (4) rounded at both ends; an engine block (1) and (2) which comprises a hollow internal machining similar to the shape of a slightly flattened drop of water; and a distribution disc (5) having intake and exhaust ports inserted into the flange (3). 2) Engine according to the preceding claim, characterized in that the rotor (6) is composed of the motor axis swollen at its center in the form of torus. 3) Motor according to the preceding claims, characterized in that the rotor does not present segmentation. 4) Motor according to the preceding claims characterized in that a single segmented pallet (4) pierces the rotor from one side to the other and has the characteristic of being rounded at its two ends, a diameter equal to its width. 5) Motor according to claim 1 characterized in that a motor unit (1) and (2), is an internal machining composed of several portions of hollow cores, of equal sections and of different diameters interconnected. 6) Motor according to claim 1 characterized in that a disc (5) provides the distribution and is freely fitted on the motor shaft.