SK42014U1 - Rotary vane engine - Google PatentsRotary vane engine Download PDF
- Publication number
- SK42014U1 SK42014U1 SK4-2014U SK42014U SK42014U1 SK 42014 U1 SK42014 U1 SK 42014U1 SK 42014 U SK42014 U SK 42014U SK 42014 U1 SK42014 U1 SK 42014U1
- Prior art keywords
- circular cylinder
- Prior art date
- 238000002485 combustion reaction Methods 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 12
- 239000000243 solution Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 4
- 238000007906 compression Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003380 propellant Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
The principle of the operation of the rotating vane motor is the purely rotational movement of its rotor (4), housed in bearings (19) and sealed with sealing rings (17) and (18), with two working vanes (1) and (2) of circular cross-section moving in circular cylinder (3), so-called. torus, in combination with the widely used combustion system in the pre-chamber (13) and the workload exchange system as applied to two-stroke combustion engines. This results in the removal of the reciprocating linear movement of the piston and its complicated transmission to the rotary by means of a crankshaft connecting rod as in the conventional combustion piston engine. The control of the air suction process, gas expansion, workload and exhaust exhaust in the working spaces of the circular cylinder (3) and the pre-chamber (13) positioned perpendicular to the plane of the circular cylinder in the upper compartment (6) will be provided by a moving mechanical partition system ( 5) and (6) located on opposite sides of the circular cylinder, and the sliders (14) and (15) in the intake (7) and exhaust passages of the pre-chamber (13) actuated directly from the rotor without the need for gears.
The technical solution relates to the design of a rotary vane motor using diesel or petrol as a propellant. The technical solution from the production point of view belongs to the field of engineering - construction of internal combustion engines and from the point of view of utilization especially to the automotive industry.
BACKGROUND OF THE INVENTION
So far, the most widespread type of four-stroke internal combustion piston engine worldwide has a very complicated, manufacturing and technologically demanding design and therefore can only be manufactured by highly specialized manufacturers with a long tradition in this field. Practically the only patented and practically realized rotary Wankel internal combustion engine did not show unequivocal success in the scope of general use, due to some significant principal disadvantages.
The current conventional reciprocating internal combustion engine has a design based on the reciprocal linear movement of the piston in the cylinder from top to bottom dead center and the conversion of this movement by a connecting rod and crank mechanism to rotary movement, accompanied by considerable energy losses, unwanted vibrations and noise.
For the serial production of such a conventional internal combustion piston engine, it is first necessary to enter a lengthy and costly development of its individual components such as: crankshaft, piston, piston rings, plain bearings, intake and exhaust valves, injection pump, injection valve, turbocharger, intercooler , regulator for specialized world manufacturers of such components. In parallel, it is necessary to propose other basic
- structural nodes and details that together with the above components make up the entire engine assembly, such as: engine housing, cylinder head, cylinder block, cylinder liner, connecting rod, camshaft, timing gears, jack, rocker arm, piston pin, event. torsion silencer. Only this calculation of the basic parts of the engine design shows its complexity and manufacturing demands. After the design and manufacture of the functional sample, it is also necessary to verify the correct functioning of all these parts by demanding short and long-term testing at the test facility. However, such a procedure makes it significantly impossible (due to the high financial and time demands) to introduce a new engine to a potential new manufacturer, which, in fact, would not have any better overall parameters than the current high-end internal combustion piston engines.
The essence of the technical solution
The aim of the technical solution is to preserve and suitably combine the existing classical principles of operation of the four-stroke internal combustion piston engine, which are essentially unchangeable, but with a much simpler arrangement of the individual nodes of the construction, enabling significant reduction of material, production and technological demands for new combustion engine. currently available technological level of cooperating production or development companies. In addition, the aim of the new solution is to reduce as much as possible the total volume and weight of the internal combustion engine, to radically reduce the total number of engine components, and also to significantly improve some of its critical operating parameters.
The present object solves and the mentioned shortcomings of the internal combustion piston engine are eliminated by a rotary vane engine using diesel or petrol as propellant according to the technical solution.
The principle of the technical solution lies in the fact that the principle of the engine function is purely rotational movement of its rotor with two working blades of circular cross-section, moving in a circular cylinder, so-called. torus, in combination with the widely used pre-chamber combustion system and workload replacement system in the manner used in two-stroke internal combustion engines. This achieves the elimination of the reciprocating linear movement of the piston and its complicated rotary conversion by means of a connecting rod mechanism with a crankshaft, as in the prior art internal combustion piston engine.
Control of the air intake, gas expansion, work fluid exchange and exhaust exhausts in the circular cylinder and pre-chamber working spaces, perpendicular to the plane of the circular cylinder in the region of the upper bulkhead, will be ensured by a system of movable mechanical bulkheads located on opposite sides of the circular cylinder and sliders in pre-chamber intake and exhaust ducts operated directly from the rotor without the need for gears. Sealing rings will be used to seal the combustion chamber and rotor and the entire rotor will be housed in bearings.
The advantages of the rotary vane engine over the conventional reciprocating internal combustion engine include the following:
- significantly better values of total weight and achieved power per unit volume;
- high running uniformity without vibration of the whole engine due to the use of pure rotational movement of the balanced rotor with blades;
- engine torque comparable to the current four-cylinder piston engine, given by four times the number of operating phases per two rotor revolutions;
-4— the possibility of a simple solution (by dimensioning the pre-chamber) in the case of a requirement to increase the maximum combustion pressure;
- the manufacturing simplicity of the engine since it does not contain such material and production-intensive details as: cylinder head, intake and exhaust valves, connecting rods, crankshaft, pistons, plain bearings, camshaft, camshaft gears, resp. torsional damper;
- the ease of operation of the engine, since no further adjustments of the engine are required after the parts have been manufactured and assembled, even during their service life, which in fact means that they should have high working reliability.
At the same time, it can be assumed that the problem to achieve sufficient functionality, reliability and durability of the proposed engine solution may be:
sealing the rotor blades due to the necessity of passing them through the bulkhead gap and connecting them to the rotor;
- sealing the rotor body in the housing in the space between the blades and the bearings;
- ensuring the mobility of bulkheads and sliders in their stowage;
- achieving or at least approaching the current level of combustion and expansion efficiency.
However, all of the foreseen problematic areas will be able to be solved during structural design using strength calculations and the use of proven engineering solutions. The issue of mixture formation, combustion and expansion in terms of compliance with current regulations on the emission content of exhaust gases would be addressed by research activities in the development process.
-5Overview of figures in drawings
The essence of the invention is explained in more detail by means of the figures in the accompanying drawings, in which FIG. 1 is a functional diagram showing the operation of the rotary vane motor with its components. In FIG. 2 is a cross-sectional view of the pre-chamber with the position of the injector rotated 90 ° so as not to interfere with the operation of the sliders. In FIG. 3 shows the bearing arrangement of the rotor with blades in the bearings, the method of sealing the combustion chamber of the circular cylinder and the rotor with the sealing rings.
An exemplary embodiment is shown in FIG. 3, wherein the rotor 4 with two working blades of circular cross-section, moving in the cooled circular cylinder 3, is supported in bearings 19, thereby allowing its purely rotational movement. Sealing of the combustion chamber of the circular cylinder 3 and the rotor 4 is realized by the respective sealing rings 17 and 18. This construction in conjunction with the movable partitions 5 and 6, the sliders M, 15 and the pre-chamber 13 ensures the full working cycle of the four-stroke internal combustion engine. rotary vane motor.
In FIG. 1 shows a functional diagram according to which the individual phases of the operation of a conventional four-stroke piston internal combustion engine - intake (filling), compression (compression), expansion (working phase), exhaust (emptying) take place halfway through the rotor 4 with two blades I and the blade 2), since both sides of the blades (front sides 9 and 11 and rear sides 10 and 12 are simultaneously used in terms of their movement in the direction of rotation).
After passing the first vane over the lower bar 5 and the second vane 2 over the upper bar 6 (estimated at 10 ° and 190 °)
When both baffles close, the suction slide 14 (FIG. 2) is closed, the exhaust slide 15 opens. By rotating the rotor 4, the first blade 1 moves in the circular cylinder and compresses the air contained in the circular cylinder 3 with its front side 9, and simultaneously draws its fresh air through the suction channel 7 into the circular cylinder 3 through its rear side 10 thereby realizing two phases of combustion engine operation. , t. j. compression and suction; at the same time, the second vane 2, on which the rear side 12 is subjected to the combustion mixture burn-up gases 13 and the front side 11, expels the exhaust gases into the exhaust port 8, thereby realizing the second two phases of operation of the internal combustion engine. j. expansion and exhaust. By continuing to rotate the rotor, the pressure between the front side of the first vane 9 and the closed suction slide 14 (compressed air) and the rear side of the second vane 12 and the pre-chamber 13 (gas expansion) is approximately balanced - at which time the suction slider 14 opens and transferring the compressed air to the pre-chamber 13 while simultaneously expelling the combustion gases. After the pre-chamber 13 is completely filled with compressed air (possibly with a certain “flushing” from the exhaust gases), the exhaust slider 15 closes, the first vane i continues to compress the air into the pre-chamber 13 with its front side 9 (while sucking fresh air into the annular cylinder). 3 with the back side 10), the second vane 2 continues to operate (expand) on its back side 12 and evacuate (exhaust gas) the cylinder through the front side ϋ. Immediately before approaching the first blade to the upper baffle 6 and the second blade 2 to the lower baffle 5 (estimated at 170 ° and 350 °), the suction slider 14 is closed, both baffles 5 and 6 are opened, the blades 1 and 2 pass through the gap for the barriers are closed in the cylinder, the barriers are closed again (estimated at angles of 190 ° and 10 °) and the exhaust slider 15 is opened. This is followed by the injection of a fuel injector into the pre-chamber 13 and its ignition, combustion and subsequent expansion of the gases through the open exhaust slider 15 duct to the rear of the first vane.
This completes the entire working cycle of the four-stroke piston engine after half a revolution of the rotor 4 (the second vane 2 continues to operate as the first vane i as described above and vice versa), which means that two working phases per expansion of the rotor 4 ). Since the current four-stroke internal combustion piston engine has one working stroke (expansion) at two crankshaft revolutions, it can be stated that the rotary vane engine will replace the current four-stroke four-cylinder engine, and is clearly expected to be significantly smaller in volume and weight with significantly less. the number of individual details that make up the entire assembly.
With respect to the effect of the individual gaseous media on the blades I and 2, it can be stated that for one revolution of the rotor 4 each blade is exposed (on the front sides 9 and 11 during the first half of the revolution) - compressed air and during the second half of the rotation - the exhaust gases , on the rear sides 10 and 12 during the first half-turn - the intake air into the cylinder and during the second half-turn - the expansion of the gases. Such alternation of the effect of the media on the blades - the front side always compressed air and exhaust gases (or medium temperatures), the back side always expands the gases and the intake air into the cylinder (so high and low temperatures) creates favorable conditions to cope with their heat load. actually internally cooled by the intake air, which will at the same time extract and transfer some of the heat from the exhaust gases back to the fresh working mixture, which increases the thermal efficiency of the engine.
The rotary vane engine according to the invention is useful as a power unit wherever the world's most widespread piston combustion four-stroke (or even two-stroke) engine is currently used in its various variants and in all its applications, especially in the automotive industry.
- Claims ΝΑ PROTECTIONRotary vane motor, characterized in that its rotor (4) consists of blades of circular cross-section (1) and (2) moving in a circular cylinder (3).
- Rotary vane motor according to claim 1, characterized in that the pre-chamber (13) is arranged perpendicular to the plane of the annular cylinder (3) in the region of the upper partition (6).
- Rotary vane motor according to claim 1, characterized in that the movable partitions (5) and (6) and the sliders (14) and (15) are operated from the rotor (4).
- Rotary vane motor according to claim 1, characterized in that a sealing ring (18) is arranged between the rotor (4) and the annular cylinder (3) and between the blade (1, 2) and the annular cylinder (3) is a sealing ring (18). 17) for sealing the rotor and combustion chamber.
- Rotary vane motor according to claim 1, characterized in that the rotor (4) with blades of circular cross-section (1) and (2) moving in the circular cylinder (3) is mounted in bearings (19).
Priority Applications (1)
|Application Number||Priority Date||Filing Date||Title|
|SK4-2014U SK6949Y1 (en)||2014-01-08||2014-01-08||Rotary vane engine|
Applications Claiming Priority (1)
|Application Number||Priority Date||Filing Date||Title|
|SK4-2014U SK6949Y1 (en)||2014-01-08||2014-01-08||Rotary vane engine|
|Publication Number||Publication Date|
|SK42014U1 true SK42014U1 (en)||2014-06-03|
|SK6949Y1 SK6949Y1 (en)||2014-11-04|
Family Applications (1)
|Application Number||Title||Priority Date||Filing Date|
|SK4-2014U SK6949Y1 (en)||2014-01-08||2014-01-08||Rotary vane engine|
Country Status (1)
|SK (1)||SK6949Y1 (en)|
Families Citing this family (7)
|Publication number||Priority date||Publication date||Assignee||Title|
|US9038594B2 (en)||2011-07-28||2015-05-26||Pratt & Whitney Canada Corp.||Rotary internal combustion engine with pilot subchamber|
|US10557407B2 (en)||2011-07-28||2020-02-11||Pratt & Whitney Canada Corp.||Rotary internal combustion engine with pilot subchamber|
|US9528434B1 (en)||2011-07-28||2016-12-27||Pratt & Whitney Canada Corp.||Rotary internal combustion engine with pilot subchamber|
|US10544732B2 (en)||2011-07-28||2020-01-28||Pratt & Whitney Canada Corp.||Rotary internal combustion engine with removable subchamber insert|
|US10041402B2 (en)||2016-05-12||2018-08-07||Pratt & Whitney Canada Corp.||Internal combustion engine with split pilot injection|
|US10145291B1 (en)||2017-10-10||2018-12-04||Pratt & Whitney Canada Corp.||Rotary engine and method of combusting fuel|
|US10801394B2 (en)||2017-11-29||2020-10-13||Pratt & Whitney Canada Corp.||Rotary engine with pilot subchambers|
- 2014-01-08 SK SK4-2014U patent/SK6949Y1/en unknown
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