CN112648071B - Rotary engine - Google Patents

Rotary engine Download PDF

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Publication number
CN112648071B
CN112648071B CN202011401904.7A CN202011401904A CN112648071B CN 112648071 B CN112648071 B CN 112648071B CN 202011401904 A CN202011401904 A CN 202011401904A CN 112648071 B CN112648071 B CN 112648071B
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cavity
rotary valve
piston
gas
channel
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CN112648071A (en
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刘青
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
    • F02B55/02—Pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
    • F02B53/04—Charge admission or combustion-gas discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
    • F02B53/04—Charge admission or combustion-gas discharge
    • F02B53/06—Valve control therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
    • F02B55/08—Outer members for co-operation with rotary pistons; Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B55/00—Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons
    • F02B55/16—Admission or exhaust passages in pistons or outer members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Compressor (AREA)

Abstract

The invention provides a rotary engine, and belongs to the technical field of engine design. The device comprises a piston, a rotary valve channel, a rotary valve shaft, an air inlet, an air outlet, an inner air passage inlet valve, an inner air passage outlet valve, a fuel inlet, a cavity shell, a cavity and a connecting rod. The engine can avoid the work loss caused by the reciprocating motion of the piston, reduce the vibration of the engine, and correspondingly improve the rotating speed of the engine because the piston does work in a rotary mode.

Description

Rotary engine
Technical Field
The invention relates to the technical field of engine design, in particular to a rotary engine.
Background
Most of the existing engines are reciprocating engines, and fuel oil is combusted and expanded in a cylinder body to do work so as to push a piston to move. Because the piston is connected with the connecting rod, and the other end of the connecting rod makes circular motion around the crankshaft, the piston only can make reciprocating motion, so that the unbalanced vibration of the engine is caused, and some loss of useless work is also generated. In addition, the existing reciprocating engine only carries out corresponding stroke above the piston in the cylinder body, and the space at the lower part of the piston is not utilized.
Disclosure of Invention
The invention aims to provide a rotary engine.
The device comprises a piston, a rotary valve channel, a rotary valve shaft, an air inlet, an air outlet, an inner air channel inlet valve, an inner air channel outlet valve, a fuel inlet, a cavity shell, cavities and a connecting rod, wherein the rotary valve divides the whole cavity shell into cavities with different functions, the piston is connected with the end part of the connecting rod, the other end of the piston is contacted with the cavity shell, the piston rotates around the center of the connecting rod in the cavity shell, the rotary valve rotates around the rotary valve shaft of the rotary valve, the cavities are divided into a power-applying exhaust cavity and an air-sucking compression cavity, the rotary valve is provided with the rotary valve channel for the piston to pass through, the inner air channel is respectively connected with each cavity, the inner air channel is provided with an inner air channel inlet and an inner air channel outlet, the inner air channel inlet is provided with an air channel inlet valve, the inner air channel outlet is provided with an inner air channel outlet valve, the cavities are provided with an air inlet and an air outlet, a fuel inlet is arranged near the outlet of the inner air channel.
The motion mode of the piston is rotary; the number of pistons is determined according to specific conditions, and is generally not less than two.
The rotary valve is in a rotary mode or other modes of motion which meet the conditions of piston passing, cavity sealing and sufficient strength; the number of the rotary valves is determined according to specific conditions, generally is not less than two, and is the same as the number of the pistons; the shape of the rotary valve in the cavity is designed according to specific conditions and is a plane or other shapes.
The front and back surfaces of the piston are designed into planes, inclined surfaces, cambered surfaces or other curved surfaces according to specific conditions.
A sealing element is arranged between the connecting rod and the cavity shell.
The number of the cavity housings is set according to specific conditions, generally not less than one, and the arrangement mode between more than two cavity housings is coaxial or different.
The engine may compress the gas itself and is not limited to gas compression and storage of compressed gas.
The technical scheme of the invention has the following beneficial effects:
in the scheme, the space in the cavity before and after the piston moves is well utilized, and corresponding strokes are always kept in the front and back directions of the piston movement when the engine works. Each time the piston makes a complete revolution through a chamber, at least one of the four strokes of the engine is completed. Because the motion mode of the piston is rotary motion, different from the prior reciprocating motion, the piston does not consume return stroke, and can also well avoid doing unnecessary useless work.
Drawings
FIG. 1 is a first schematic structural diagram of the apparatus of the present invention;
FIG. 2 is a second schematic structural view of the apparatus of the present invention;
FIG. 3 is a third schematic structural view of the apparatus of the present invention;
FIG. 4 is a fourth schematic structural view of the apparatus of the present invention;
FIG. 5 is a schematic view of a circular rotary valve according to the present invention;
FIG. 6 is a front view of a rotary valve of the present invention;
FIG. 7 is a top view of a rotary valve of the present invention;
FIG. 8 is a schematic view of a piston cut in a cavity according to the present invention.
Wherein: 101-piston A, 102-piston B, 103-piston C, 104-piston D, 105-piston E, 106-piston F, 201-rotary valve A, 202-rotary valve B, 203-rotary valve C, 204-rotary valve D, 205-rotary valve E, 206-rotary valve F, 201.1-rotary valve pathway A, 202.1-rotary valve pathway B, 203.1-rotary valve pathway C, 204.1-rotary valve pathway D, 205.1-rotary valve pathway E, 206.1-rotary valve pathway F, 201.2-rotary valve axis A, 202.2-rotary valve axis B, 203.2-rotary valve axis C, 204.2-rotary valve axis D, 205.2-rotary valve axis E, 206.2-rotary valve axis F, 301-inlet A, 302-inlet B, 303-inlet C, 304-inlet D, 401-exhaust port a, 402-exhaust port B, 501-internal air duct a, 502-internal air duct B, 501.1-internal air duct inlet a, 501.2-internal air duct inlet B, 501.3-internal air duct inlet C, 501.4-internal air duct inlet D, 501.5-internal air duct outlet a, 501.6-internal air duct outlet B, 601-fuel inlet a, 602-fuel inlet B, 700-cavity housing, 701-cavity a, 702-cavity B, 703-cavity C, 704-cavity D, 705-cavity E, 706-cavity F, 801-connecting rod.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a rotary engine.
The device comprises a piston, a rotary valve channel, a rotary valve shaft, an air inlet, an air outlet, an inner air channel inlet valve, an inner air channel outlet valve, a fuel inlet, a cavity shell, cavities and a connecting rod, wherein the rotary valve divides the whole cavity shell into cavities with different functions, the piston is connected with the end part of the connecting rod, the other end of the piston is contacted with the cavity shell 700, the piston rotates around the center of the connecting rod 801 in the cavity shell 700, the rotary valve rotates around the rotary valve shaft of the rotary valve, the cavities are divided into a working exhaust cavity and an air suction compression cavity, the rotary valve is provided with the rotary valve channel for the piston to pass through, the inner air channel is respectively connected with each cavity, the inner air channel is provided with an inner air channel inlet and an inner air channel outlet, the inner air channel inlet valve is arranged at the inner air channel inlet, the inner air channel outlet valve is arranged at the inner air channel outlet, the cavities are provided with the air inlet and the air outlet, a fuel inlet is arranged near the outlet of the inner air channel.
In particular, the portion of the rotary valve within the chamber in fig. 1, 2 and 3 is replaced by a thick dashed line.
As shown in fig. 1, the center of the connecting rod 801 may be connected to the output shaft, and the piston a101, the piston B102, the piston C103, the piston D104, the piston E105, and the piston F106 are respectively fixed to the ends of the connecting rod 801. The piston rotates around the center of the connecting rod 801 inside the fixed chamber housing 700, and the sectional view is schematically shown in fig. 8. There is a corresponding seal between the rod 801 and the chamber housing 700 and also outside the piston.
As shown in fig. 4, the 6 rotary valves of the rotary valves a201, the rotary valve B202, the rotary valve C203, the rotary valve D204, the rotary valve E205, and the rotary valve F206 rotate around the rotary valve shaft a201.2, the rotary valve shaft B202.2, the rotary valve shaft C203.2, the rotary valve shaft D204.2, the rotary valve shaft E205.2, and the rotary valve shaft F206.2, respectively, so that the engine can be divided into 6 cavities, which are a cavity a701, a cavity B701, a cavity C703, a cavity D704, a cavity E705, and a cavity F706, respectively. The cavity A701 and the cavity D704 are working exhaust cavities, and the cavity B702, the cavity C703, the cavity E705 and the cavity F706 are suction compression cavities. The rotary valve is a rotatable round, a truncated cone or other shapes, and the gaps left on the round or truncated cone inclined surface for the piston to pass through are rotary valve channels as shown in fig. 5, fig. 6 and fig. 7, namely a rotary valve channel a201.1, a rotary valve channel B202.1, a rotary valve channel C203.1, a rotary valve channel D204.1, a rotary valve channel E205.1 and a rotary valve channel F206.1 (the rotary valve channels D204.1 and a201.1 are the same, and the rotary valve channels C203.1, E205.1 and F206.1 and B202.1 are the same), so that the piston can pass through smoothly when rotating, and the piston can also be ensured to pass through the sealed environment between the front and rear pistons and the rotary valve.
As shown in fig. 3, there is an internal gas duct for compressed gas storage and transport in the upper part of the engine, which connects the different chamber spaces.
As shown in fig. 2, the inner gas duct is composed of a duct wall, two gas inlets, a gas outlet and corresponding inlet and outlet valves. The two gas inlets of the inner gas channel A501 are respectively an inner gas channel inlet B501.2 and an inner gas channel inlet C501.3, the gas outlet is an inner gas channel outlet B501.6, the two gas inlets of the inner gas channel B502 are respectively an inner gas channel inlet A501.1 and an inner gas channel inlet D501.4, the gas outlet is an inner gas channel outlet A501.5, and the inlets and the outlets are respectively controlled by valves.
An intake port a301, an intake port B302, an intake port C303, an intake port D304, an intake port, an exhaust port a401, and an exhaust port B402 are provided in each cavity, respectively.
In the embodiment, two fuel inlets are provided, namely a fuel inlet A601 and a fuel inlet B602.
As shown in fig. 1 and 4, when the piston B102 enters the chamber B702 through the rotary valve passage B202.1 of the rotary valve B202, a corresponding stroke starts in the chamber B702.
When the rotary valve channel B202.1 is completely removed from the chamber B702, the piston B102 rotates in the direction of motion, creating a negative pressure between the rotary valve B202 and the piston B102, causing air to be drawn in from the inlet port a301, completing the suction stroke.
Since the inner gas channel inlet B501.2 is not opened temporarily, when the rotary valve channel C203.1 is completely separated from the chamber B702, a closed space is formed between the rotary valve C203 and the piston B102, and the piston B102 is pushed in the moving direction (clockwise direction) to compress the gas sucked in the previous suction stroke, thereby performing the compression stroke.
The functions of cavity C703, cavity E705 and cavity F706 are the same as those of cavity B702. The compression stroke is also carried out before the piston in the corresponding cavity moves, and the suction stroke is carried out after the piston moves.
The compressed gas in the cavity B702 and the cavity C703 can open the inlet valve of the inner gas channel after the compression stroke is finished, so that the gas enters the inner gas channel A501 from the inlet B501.2 and the inlet C501.3 of the inner gas channel for standby. When rotary valve channel B202.1 and rotary valve channel C203.1 begin to enter chamber B702 and chamber C703, the inner airway inlet valve is closed to maintain the sealed environment of the inner airway.
The compressed gas in the same chamber E705 and chamber F706 can enter the inner gas passage B502 for use.
As shown in fig. 1 and 4, the piston a101 enters the cavity a701 through the rotary valve passage a201.1 of the rotary valve a201, when the rotary valve passage a201.1 completely leaves the cavity a701, a sealed environment is formed between the piston a101 and the rotary valve a201, at this time, the fuel inlet valve a601.1 and the corresponding internal gas passage outlet valve are opened, so that the fuel and the compressed gas in the internal gas passage B502 enter the cavity a701 to perform a power stroke.
In the chamber a701, the piston a101 advances forward, which is blocked by the rotary valve B202, so that the exhaust gas from the previous combustion work is discharged through the exhaust port a401, thereby performing an exhaust stroke ahead of the movement of the piston a 101.
Cavity D704 functions in concert with cavity A701.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (4)

1. A rotary engine characterized by: the piston A (101), the piston B (102), the piston C (103), the piston D (104), the piston E (105) and the piston F (106) are respectively and fixedly connected with the end part of the connecting rod (801), the other ends of the piston A (101), the piston B (102), the piston C (103), the piston D (104), the piston E (105) and the piston F (106) are in contact with the cavity shell (700), the piston rotates around the center of the connecting rod (801) in the cavity shell (700),
the rotary valve A (201), the rotary valve B (202), the rotary valve C (203), the rotary valve D (204), the rotary valve E (205), and the rotary valve F (206) respectively rotate around a rotary valve shaft A (201.2), a rotary valve shaft B (202.2), a rotary valve shaft C (203.2), a rotary valve shaft D (204.2), a rotary valve shaft E (205.2), and a rotary valve shaft F (206.2), and divide the inside of the whole cavity housing (700) into 6 cavities, namely a cavity A (701), a cavity B (702), a cavity C (703), a cavity D (704), a cavity E (705), and a cavity F (706), wherein the cavity A (701) and the cavity D (704) are working and exhausting cavities, the cavity B (702), the cavity C (703), the cavity E (705), and the cavity F (706) are suction and compression cavities,
rotary valve A (201), rotary valve B (202), rotary valve C (203), rotary valve D (204), rotary valve E (205), rotary valve F (206) on leave respectively that make the piston pass through rotary valve passageway A (201.1), rotary valve passageway B (202.1), rotary valve passageway C (203.1), rotary valve passageway D (204.1), rotary valve passageway E (205.1), rotary valve passageway F (206.1), interior gas duct A (501), interior gas duct B (502) connect each cavity respectively, interior gas duct A (501), interior gas duct B (502) set up interior gas duct import and interior gas duct outlet, interior gas duct import department sets up interior gas duct import valve, interior gas duct outlet department sets up interior gas duct outlet valve, wherein two gas intakes of interior gas duct A (501) are interior gas duct import B (501.2) and interior gas duct import C (501.3) respectively, the gas outlet is interior gas duct outlet B (501.6), two gas intakes of interior gas duct B (502) are air duct import (501.1.1) and interior gas duct import (501.D) respectively, (501.3), the gas outlet is interior gas duct import (501) respectively 501.4), the gas outlet is an inner gas channel outlet A (501.5), the cavity B (702), the cavity C (703), the cavity E (705) and the cavity F (706) are respectively provided with a gas inlet A (301), a gas inlet B (302), a gas inlet C (303) and a gas inlet D (304), the cavity A (701) and the cavity D (704) are respectively provided with a gas outlet A (401) and a gas outlet B (402), and a fuel inlet is arranged near the inner gas channel outlet B (501.6) and the inner gas channel outlet A (501.5);
the rotary engine works as follows:
when the rotary valve channel B (202.1) is completely separated from the cavity B (702), the piston B (102) rotates towards the moving direction, negative pressure is formed between the rotary valve B (202) and the piston B (102), so that air is sucked from the air inlet A (301) to complete the suction stroke;
because the inner air channel inlet B (501.2) is not opened temporarily, when the rotary valve channel C (203.1) is completely separated from the cavity B (702), a closed space is formed between the rotary valve C (203) and the piston B (102), the piston B (102) is pushed in the moving direction to compress the gas sucked in the last suction stroke, and thus, a compression stroke is carried out;
opening an inner air channel inlet valve after the compression stroke is finished, so that compressed air of the cavity B (702) and the cavity C (703) enters the inner air channel A (501) from the inner air channel inlet B (501.2) and the inner air channel inlet C (501.3) for standby; when rotary valve channel B (202.1) and rotary valve channel C (203.1) start to enter cavity B (702) and cavity C (703), the inner gas channel inlet valve is closed to maintain the sealed environment of inner gas channel a (501);
piston D (104) enters into cavity D (704) through rotary valve channel D (204.1) of rotary valve D (204), when rotary valve channel D (204.1) completely leaves cavity D (704), a closed environment is formed between piston D (104) and rotary valve D (204), at this time, a fuel inlet valve and a corresponding internal gas channel outlet valve are opened, so that fuel and compressed gas in internal gas channel A (501) enter into cavity D (704) to perform power stroke;
in chamber D (704), piston D (104) advances forward, which is blocked by rotary valve E (205), so that the exhaust gas from the previous combustion work is exhausted through exhaust port B (402), thereby performing an exhaust stroke ahead of the movement of piston D (104);
the working modes of the cavity E (705), the cavity F (706) and the cavity A (701) are the same as the working modes of the cavity B (702), the cavity C (703) and the cavity D (704).
2. The rotary engine of claim 1, wherein: the front and back surfaces of the piston are designed to be planes, inclined surfaces or curved surfaces according to specific conditions.
3. The rotary engine of claim 1, wherein: and a sealing element is arranged between the connecting rod and the cavity shell.
4. The rotary engine of claim 1, wherein: the number of the cavity shells (700) is not less than two, and the arrangement mode between more than two cavity shells is coaxial or different.
CN202011401904.7A 2020-12-03 2020-12-03 Rotary engine Active CN112648071B (en)

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CN112648071B true CN112648071B (en) 2022-04-01

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CN1680697A (en) * 2004-11-10 2005-10-12 刘博阳 Toothed piston rotary engine
CA2685089A1 (en) * 2006-04-29 2007-11-08 Concept Solutions Inc. Energy transfer machine with inner rotor
WO2007147292A1 (en) * 2006-06-13 2007-12-27 Fan Xu Rotary piston engine
CA2801428A1 (en) * 2010-06-04 2011-12-08 Lonny J. Doyle Rotary piston engine
CN103670688A (en) * 2012-09-04 2014-03-26 周金社 Rotating piston type engine
CN107620634A (en) * 2017-09-01 2018-01-23 郭革委 A kind of rotary combustion engine
US10094218B1 (en) * 2018-01-05 2018-10-09 Gert-Willem Hartmans Continuous motion revolving piston engine

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