WO1996041934A1

WO1996041934A1 - Rotary engine with pairs of blades

Info

Publication number: WO1996041934A1
Application number: PCT/CN1996/000041
Authority: WO
Inventors: Wenjie Lu
Original assignee: Wenjie Lu
Priority date: 1995-06-12
Filing date: 1996-06-12
Publication date: 1996-12-27
Also published as: CN1138136A; AU5995396A

Abstract

This invention provides a rotary engine with pairs of blades that has promoted lubrication. The engine includes end covers, a cylinder body and a rotor coupled with a main shaft in said cylinder body. In said rotor, it provides slots to receive said pairs of blades which divide the cylinder into spaced lubricating chambers and combustion chambers. Said lubricating chambers are connected with an oil tank through oil passages.

Description

Twin-blade rotor engine

Technical field

The invention relates to a rotor engine, in particular to a double-blade rotor engine with improved lubrication function.

Background technique

At present, the existing engines in China can be divided into two categories, namely reciprocating engines and rotary engines. A reciprocating engine is the mechanical energy that is generated by the combustion of fuel in a cylinder through pistons, connecting rods, crankshafts, and so on. However, the structure of this engine is more complicated. Because pistons, connecting rods, etc. reciprocate at high speed, the inertia is large, and energy must be lost to overcome this inertia. In addition, the speed of the reciprocating motion is low. Compared with the conventional engine, the rotor engine has simple structure, heavy weight, long working stroke and smooth movement. Since there are no large reciprocating parts and valves, the start is fast and reliable. However, because the lubrication of the steam red inner seal is generally lubricated with fuel oil (for example, Chinese patent CN 20690190), the existing lubrication problem of the rotor engine has not been well solved, so the life of the rotor engine is relatively short.

Summary of the Invention

An object of Ming is to provide a double-blade rotor engine with good lubrication function and long life.

Another object of the present invention is to provide a vertical double-blade rotor engine that has a relatively simple lubrication system and can overcome the accumulation of engine oil in a lubricating room after a shutdown.

According to one aspect of the present invention, the present invention provides a two-blade rotor engine, which includes front and rear end covers, red holiday and a rotor located in the cylinder and connected to the main shaft, which is characterized in that the main shaft is placed horizontally; The rotor has at least two pairs of uniformly distributed grooves matching the shape of the blades, which are used to accommodate swingable or retractable blades; each pair of blades is composed of two front and rear blades with springs or spring leaves at the bottom; The rear blade divides the space surrounded by the red body, the rotor, and the front and rear end covers into a combustion chamber and a lubricating chamber that are interspaced with each other. The lubricating chamber communicates with the oil cavity through the oil passage; an air inlet and a ^ are provided on the front cover. The air ports and the inlet, exhaust and spark plugs that extend into the end cover are located on a circle centered on the axis of the main shaft; when the rotor is running into the intake and exhaust areas, the inlet on the rotor Air port and exhaust port Do not communicate with the air inlet, air inlet, exhaust, and air vent on the front cover; the rear cover is provided with an oil nozzle and an oil recovery port.

According to another aspect of the present invention, the present invention provides a two-bladed rotor engine, which includes an upper cover, a cylinder block, and a rotor connected to a rotor shaft, characterized in that the rotor shaft is disposed vertically and an upper end thereof It is connected to the rotor, an impeller is installed at the lower end, and a central oil passage is axially opened at the center of the rotor shaft; a rotor oil passage is opened on the rotor, and the oil passage communicates with the central oil passage and the engine oil passage of the rotor shaft, thereby From the center of the rotor to the various lubrication chambers; there are at least two pairs of uniform grooves on the rotor that match the shape of the blades to accommodate swingable or retractable blades, each pair of blades is equipped with two springs or spring blades at the bottom The blade divides the space surrounded by the red holiday, the rotor, and the upper cover into a combustion chamber and a lubrication chamber that are interspaced with each other, and the lubrication chamber is communicated with the oil chamber through an oil passage; The air ports, the inlet and exhaust ducts and the spark plugs extending into the upper cover are all located on a circle centered on the axis of the main shaft; an oil filter and an oil groove are provided at the bottom of the housing, The impeller is placed in an oil tank.

In a preferred example according to the present invention, at least one rectangular groove is provided at each position of the rotor corresponding to the lubricating chamber, and a wiper blade is respectively provided in the groove, and the wiper blade can extend along the level of the groove. The oil chamber is divided into a front chamber and a rear chamber, and the engine oil passage and the rotor oil passage are communicated with the front chamber.

The method for applying the two-blade rotor engine of the present invention to an automobile is: ^ The two Λ-blade rotor engines are connected by a clutch ^, and are respectively used as a main engine and an auxiliary engine. When the vehicle starts or goes uphill and needs a larger power The clutch is closed, so that the main engine and the auxiliary engine work at the same time through the carburetor, and when the power required is small, the clutch can be disengaged and the auxiliary engine can be shut down, thereby achieving the purpose of energy saving.

Overview of the drawings

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. In the drawings: 1 is a schematic diagram of a twin-blade rotor engine according to the first aspect of the present invention;

FIG. 2 is a sectional view taken along line A--A in FIG. 1;

FIG. 3 is a schematic structural diagram when a rectangular blade is used;

FIG. 4 is a schematic structural diagram when a spring leaf blade is used;

5 is a schematic structural diagram of a double-blade rotor engine when L-shaped blades are used; 6 is a longitudinal sectional view of the double-blade rotor engine shown in FIG. 5;

Fig. 7 is a sectional view of a two-blade rotor engine according to a second aspect of the present invention; and Fig. 8 shows a two-blade rotor engine with an oil scraper according to the second aspect of the present invention.

Fig. 9 is a schematic diagram when a two-blade rotor engine according to the present invention is applied to an automobile.

Nie Jia embodiment of the present invention

As shown in FIGS. 1 and 2, the rotor engine according to the first preferred embodiment of the present invention includes: a front end cover 3, a rear end cover 19, an oval cylinder block 9, and a cylinder located in the cylinder block and connected to the main shaft 4.形臂 12。 Shaped rotor 12. The rotor 12 is provided with three pairs of grooves corresponding to the shape of the blades, which are uniformly distributed at 120 °, and the grooves are used to accommodate swingable blades. Each pair of blades is composed of two comma-shaped front blades 8 and rear blades 5 in opposite directions, and a spring 11 is installed at the bottom of the blades. The front blades 8, the rear blades 5, the cylinder block 9, the rotor 12, and the front and rear end covers 3 and 19 form a working chamber (ie, the combustion chamber), and the front blades 8 and the adjacent rear blades of the other 5 blades cylinder The body 9, the rotor 12, and the front and rear covers 3 and 19 form a lubrication chamber. The working chamber (or combustion chamber) and the lubrication chamber are opposite each other. An organic oil passage 10 is processed on a rotor surrounding a lubricating chamber, and an oil chamber 15 is provided at a central portion of the rotor 12. The oil chamber extends axially and has a p-shaped shape (see FIG. 2). The oil chamber 15 communicates with the lubrication chamber through the oil passage 10. The front cover of the engine is provided with an air inlet port 2, an exhaust port 13, an intake port 1, an exhaust port 14, and a spark plug 7 which extend into the end cover. They are all located on the same center with the axis of the main shaft 4 as the circle center On the circumference. When the rotor runs clockwise to the intake area (J area) and exhaust area (P area), the intake and exhaust ports 6 on the rotor 12 and the intake channels 1 and 2 on the front cover 3, respectively. The exhaust port 14 is matched with the exhaust port 13 and the spark plug 7. An oil spray head 18 and an oil recovery port 20 are provided on the rear end cover 19, the oil spray head is located above the main shaft 4 and the oil recovery port is located below the main shaft. The front and rear covers are mounted on the main shaft 4 through the bearings using the center holes thereon, and then they are fixed on the carcass 9. Both the carburetor and the cooling system of the present invention adopt the existing technology.

The working process of the above-mentioned double-blade engine is as follows: The rotor 12 of the engine is rotated clockwise; when the first working chamber enters the intake area (zone J), air and gasoline pass through the carburetor and pass through the air inlet 2 on the front cover 3. Intake port 1, inlet and exhaust port 6 on the rotor 12, enter the working chamber; the rotor continues to rotate into the compression zone (Y zone). At the end of the intake process, the working chamber is closed, and the mixed gas is compressed into the combustion zone (R zone). ), The intake and exhaust on the spark plug 7 and the rotor 12 Port 6 communicates and performs an ignition operation to burn the mixed gas beyond the combustion zone. Because of the pressure difference between the front blades 8 and the rear blades 5, the rotor 12 is pushed to continue to rotate clockwise, so that the high-pressure gas generates power and performs work; when the rotor When rotating to the exhaust zone (P zone), the high-pressure exhaust gas after combustion is discharged through the exhaust port 13 and the exhaust port 14 on the front cover 3 to complete a working cycle. Figures 1 and 2 show a two-bladed rotor engine with three working chambers I, II, and III, which pass through five processes of intake, compression, combustion, power generation, and exhaust. The function of the chamber is clockwise to make the engine work.

The rear blades 5 'of the third working room and the front blades 8, rotor 12, cylinder 9 and front and rear end covers 3, 19 of the first working room constitute a lubrication chamber. The oil is sprayed into the oil chamber 15 from the oil spray head 18. When the volume of the lubrication chamber increases with the rotation of the rotor, the oil in the oil chamber 15 enters the lubrication chamber through the oil passage 10; when the accumulation is reduced, the oil is discharged into the oil chamber 15 through the oil passage 10. Because the oil chamber 15 has a la-eight shape, during high-speed rotation, the remaining oil in the oil chamber 15 is discharged by the centrifugal force, and then recovered through the oil recovery port 20.

As shown in FIG. 3, the aforementioned front blades 8 and rear blades 5 can also be processed into rectangles.

As shown in FIG. 4, the aforementioned front blades 8 and rear blades 5 may also be spring leaf blades. As shown in Figs. 5 and 6, the aforementioned front blades 8 and rear blades 5 may be L-shaped blades. In this embodiment, the rotor is E-shaped, and at least two pairs of arc-shaped grooves with opposite arc directions are provided thereon, and L-shaped blades are arranged in the arc-shaped grooves. The leaf surface of the blade is curved. The blade can swing freely in the arc groove on the rotor with the minor axis 35 as the axis. In addition, a spring 53 is provided between the two L-shaped blades.

Next, a double-bladed rotor engine according to a second aspect of the present invention will be described with reference to FIG. 5 and the content shown in FIG. 1, wherein the same or similar components as those of the engine according to the first aspect are designated by the same reference numerals.

The two-bladed rotor engine according to the second aspect of the present invention is different from the above-mentioned rotor engine according to the first aspect of the present invention in that the rotor shaft of the engine, that is, the main shaft 4 is vertically arranged, and a rotor 12 is mounted on the upper end thereof, An impeller 29 is installed at the lower end of the rotor shaft. The rotor shaft is supported on the upper cover 23 and the base 33 of the cylinder block 9 by bearings 25 and 28 at both ends. A central oil passage 31 is provided at the center of the rotor shaft 4 in the axial direction, and the oil passage communicates with a rotor oil passage 32 provided on the rotor 12, and the rotor oil passage 32 leads from the center of the rotor to the engine oil passage 10. An oil chamber 15 is provided at a central portion of the rotor 12, and the oil chamber extends axially in a la-eight shape, and communicates with the lubrication chamber 25 through the oil passage 10. Set at the bottom of cylinder break 9 There is an oil groove 20 in which the lower end of the rotor shaft and the impeller 29 are arranged. In addition, an oil filter screen for filtering oil is provided on the upper part of the oil tank. In addition, the intake and exhaust ports 2 and 13, the intake and exhaust ports 1 and 14 and the spark plug 7 are provided on the upper cover 23 instead of the front end cover 3. The structure and arrangement of the slots, blades, working chamber and lubrication chamber on the engine rotor are substantially the same as those of the above-mentioned embodiment.

When the engine is running, the rotor shaft drives the impeller to rotate, and the impeller oil is pumped into the central oil passage on the rotor shaft, and the oil is sprayed to the lubrication chambers through the oil passage through the rotor oil passage communicating with the central oil passage. Because the volume of the lubrication chamber changes continuously with the rotation of the rotor, when the volume of the lubrication chamber is reduced, excess oil is discharged into the oil chamber through the oil passage, and then flows back to the oil tank under the effect of gravity, thereby preventing the oil from Accumulation in the lubrication chamber prevents oil from leaking into the combustion chamber. Other details of the engine in operation are the same as those of the first embodiment described above, and thus detailed descriptions thereof are omitted.

The structure and operation of a rotor engine with an oil scraper will be described below using a two-blade rotor engine according to the second aspect of the present invention as an example. In this embodiment, an L-shaped blade is used. The rotor 12 is provided with at least one rectangular groove 34 at each position corresponding to the lubrication chamber, and a scraper blade 37 is provided in each of the rectangular grooves, and the scraper blade can be extended or retracted in the longitudinal direction of the groove. Thus, the lubrication chamber 25 is divided into a front chamber 38 and a rear chamber 36. The oil passage 10 communicating with the rotor oil passage 32 leads to the forward chamber 38. During operation, the impeller oil driven by the rotor shaft is pumped into the central oil passage 31 of the rotor, and then sprayed into the front chamber 38 through the rotor oil passage 32 for lubrication. Thereafter, the remaining oil is scraped off the cylinder body by the wiper blade 37, discharged from the oil passage 10 into the oil chamber, and then flows back to the oil tank under the action of gravity. The wiper blade 37 in this example is equivalent to the oil ring on the piston in a reciprocating engine, which can scrape off the remaining oil as much as possible, thereby preventing the oil from entering the combustion chamber.

If the double-blade rotor engine according to the present invention is used in an automobile (or other occasions where the power is unstable), an auxiliary machine can be added (the auxiliary machine is also a double-blade engine). As shown in FIG. 9, reference numeral 40 in the figure is a main machine and 43 is an auxiliary machine, and they are connected by a clutch 4 ^ 42. When the car starts or goes uphill and needs more power, the clutch H 2 is closed, so that the main engine 40 and the auxiliary engine 43 work simultaneously through the carburetor 41. When the power required is small, the clutch 42 is disengaged and the auxiliary machine 43 is turned off. This can save a lot of energy and achieve energy saving.

Industrial applicability According to the double-blade rotor engine of the present invention, the design is reasonable, the structure is simple, the operation is reliable, the operation is stable, and the fuel can be saved and the thermal efficiency can be improved. In particular, it has a good lubrication function and can effectively extend the service life of the rotor engine. This double-blade rotor engine basically combines the advantages of a reciprocating engine and a rotor engine. In addition, the rotor engine according to the second aspect of the present invention also overcomes the shortcomings of the accumulation of engine oil in the lubricating room after stopping, and can prevent the oil from leaking into the combustion chamber.

Claims

Rights request

1. A two-blade rotor engine, comprising: a front end cover (3), a rear end cover (19), a cylinder block (9), and a rotor (12) located in a red body and connected to a main shaft (4), wherein It is characterized in that the main shaft (4) is placed horizontally; the rotor (12) has at least two pairs of uniformly distributed grooves that match the shape of the blades to accommodate swingable or retractable blades; the blades are composed of cylinder bodies (9) The space surrounded by the rotor (12) and the front and rear end covers (3) and (19) is divided into a combustion chamber and a lubrication chamber which are interspaced with each other, and the lubrication chamber passes through the oil passage (10) and the oil chamber ( 15) communication; an oil nozzle (18) and an oil recovery port (20) are provided on the rear end cover (19), the oil nozzle is located above the main shaft (4), and the oil recovery port is located below the main shaft .

2. The double-blade rotor engine according to claim 1, wherein each pair of blades is composed of two blades (8), (5) that reciprocate in opposite directions, and the blades can be made into a comma shape. , L-shaped or spring leaf type, and the bottom of each blade is equipped with a spring or spring leaf.

3. The two-bladed rotor engine according to claim 1, characterized in that the oil chamber (15) at the central portion of the rotor (12) extends axially in a la-eight shape and communicates with the oil that is in communication with the lubrication chamber. Channel (10)-located on the rotor (12) surrounding the lubrication chamber.

4. The twin-blade rotor engine according to claim 1, characterized in that the front cover (3) is provided with an air inlet (2), an exhaust port (13), and an air inlet duct protruding into the end cover. (1), the exhaust duct (14), and the spark plug (7), which are all located on a circle centered on the axis of the main shaft (4), and are connected to the air inlet and exhaust ports (6) on the rotor (12) )match.

5. The twin-blade rotor engine according to claim 1, wherein at least one rectangular groove is provided at each position of the rotor corresponding to the lubrication chamber, and a scraper blade (37) is provided in each of the grooves. The blade can be extended or retracted from the groove along the longitudinal direction of the groove, thereby dividing the lubrication chamber (25) into a front chamber (38) and a rear chamber (36), and the oil passage (10) and the rotor The oil passages (32) are all in communication with the front chamber (38).

6. A two-blade rotor engine comprising: an upper cover (23), a cylinder block (9), and a rotor (12) connected to a rotor shaft (4), characterized in that the rotor shaft (4) It is vertically arranged, the upper end of which is connected with the rotor (12), the lower end is equipped with an impeller (29), and a central oil passage (31) is provided along the axial direction at the center of the rotor shaft; the rotor (12) is provided with Turn A sub oil passage (32), which communicates with the central oil passage (31) of the rotor shaft (4) and the engine oil passage (10) on the rotor, so as to pass from the center of the rotor to each lubrication chamber (25); the rotor ( 12) There are at least two pairs of uniformly distributed grooves matching the shape of the blades to accommodate swingable or retractable blades; the blades will be composed of a cylinder block (9), a rotor (12) and an upper cover (23). ) The space enclosed by it is divided into a combustion chamber (30) and a lubricating chamber (25), which are in communication with each other through an oil passage (10) and an oil chamber (15); An oil strainer (27) and an oil groove (20) are provided at the bottom, and the impeller (29) is placed in the oil groove.

7. The twin-blade rotor engine according to claim 6, characterized in that each pair of blades is composed of two blades (8), (5) that swing back and forth in opposite directions, and the blades can be made into a comma shape, L-shaped or spring leaf type, and the bottom of each blade is equipped with a spring or spring leaf.

8. The two-bladed rotor engine according to claim 6, characterized in that the oil chamber (15) at the central portion of the rotor (12) extends axially in a la-eight shape and communicates with the oil that is in communication with the lubrication chamber. Channel (10)-located on the rotor (12) surrounding the lubrication chamber.

9. The twin-blade rotor engine according to claim 6, characterized in that the upper cover (23) is provided with an air inlet (2), an exhaust port (13), and an air inlet duct protruding into the end cover. (1), the exhaust duct (14), and the spark plug (7), which are all located on a circle centered on the axis of the main shaft (4), and are connected to the air inlet and exhaust ports (6) on the rotor (12) match.

10. The double-blade rotor engine according to claim 1, wherein at least one rectangular groove is provided at each position of the rotor corresponding to the lubrication chamber, and a scraper blade (37) is provided in each of the grooves. The blade can be extended or retracted from the groove along the paper direction of the groove, thereby dividing the lubrication chamber (25) into a front chamber (38) and a rear chamber (36), and the oil passage (10) and The rotor oil passages (32) are all in communication with the front chamber (38).

11. A method for applying a two-bladed rotor engine to an automobile, characterized in that two two-bladed rotor engines are coupled with a clutch ^ (42), which are respectively used as a main engine (40) and an auxiliary engine (43); When the car starts or goes uphill and needs more power, the clutch (42) is closed, so that the main engine (40) and the auxiliary engine (43) work simultaneously through the carburetor (41); when less power is needed, the clutch is turned on 1 ^ (42) is separated, and then the auxiliary machine (43) is turned off.