CN110259570B - Resonance air inlet system with variable air inlet main pipe - Google Patents
Resonance air inlet system with variable air inlet main pipe Download PDFInfo
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- CN110259570B CN110259570B CN201910605882.7A CN201910605882A CN110259570B CN 110259570 B CN110259570 B CN 110259570B CN 201910605882 A CN201910605882 A CN 201910605882A CN 110259570 B CN110259570 B CN 110259570B
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- main pipe
- inlet main
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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
- F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
- F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
- F02B27/0205—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the charging effect
- F02B27/0215—Oscillating pipe charging, i.e. variable intake pipe length charging
- F02B27/0221—Resonance charging combined with oscillating pipe charging
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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
- F02B27/00—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues
- F02B27/02—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means
- F02B27/0226—Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues the systems having variable, i.e. adjustable, cross-sectional areas, chambers of variable volume, or like variable means characterised by the means generating the charging effect
- F02B27/0231—Movable ducts, walls or the like
- F02B27/0236—Movable ducts, walls or the like with continuously variable adjustment of a length or width
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- 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)
- Characterised By The Charging Evacuation (AREA)
Abstract
A resonance air intake system with a variable air intake manifold belongs to the technical field of engines. The problem of current resonance air intake system have that the sealing washer wearing and tearing are serious and drive arrangement starts the difficulty is solved. The air inlet main pipe is divided into an air inlet main pipe front section and an air inlet main pipe rear section, and the air inlet main pipe rear section is close to the resonant cavity; the rear section of the air inlet main pipe is a corrugated pipe; the front section of the air inlet main pipe is a straight cylinder type pipeline, and the free end of the air inlet main pipe is provided with a flange; a first rack which is as long as the front section of the air inlet main pipe is welded on the lower wall surface of the front section of the air inlet main pipe, and the first rack is meshed with the driving device; the driving device is used for driving the front section of the air inlet main pipe to reciprocate through the first rack, so that the rear section of the air inlet main pipe is extended or shortened, and the total length of the air inlet main pipe is finally controlled; the positioning guide device is arranged on the front section of the air inlet main pipe and used for guiding and positioning the front section of the air inlet main pipe. The invention is mainly applied to the field of engine air intake.
Description
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a resonant air intake system of a gas engine with mixed air outside a cylinder.
Background
Along with the development of industry, the problem of oil shortage is becoming more serious day by day, the development of new energy technology is imperative, and the gas fuel resource is abundant, wherein, the gas fuel has the advantages of low emission pollution, low price and the like, and the gas fuel has natural resources such as natural gas and resources associated with production and living such as petroleum gas, methane, coal bed gas and the like, so the development of the gas engine becomes an important direction for the development of the engine technology.
The gaseous fuel of the gas engine is preferably natural gas, which occupies a portion of the intake charge when mixed in the intake passage and then introduced into the cylinder, thereby reducing the amount of air introduced into the cylinder, and therefore the power density of the gas engine is lower than that of a diesel or gasoline engine under the same conditions. The intake resonance technology is adopted for improving the intake charge to make up the defect of power density reduction, the periodic opening and closing of the intake valve and the reciprocating linear motion of the piston can cause the gas pressure in the intake pipeline to be periodic fluctuation, a certain resonance rotating speed can be determined through the reasonable structural design of the resonance cavity and the intake manifold, and the gas pressure fluctuation at the opening moment of the intake valve can be ensured to be in a crest state at the rotating speed, so that the gas pressure is increased, and the purposes of increasing the intake charge and improving the intake efficiency are achieved. The resonant rotation speed is related to an air inlet system, the air inlet system mainly comprises an air inlet manifold, a resonant cavity and an air inlet main pipe, the change of the structure of the air inlet system comprises the change of the shape and the size of each part, the actual installation and the realization difficulty are involved, the resonant rotation speed of the air inlet system is generally changed by changing the size of the air inlet system, and the change of the length of the air inlet main pipe is an obvious effect and an easy realization method.
The invention discloses an electronic control stepless variable air inlet main pipe resonance air inlet system of a gas engine in the prior art, and the invention with the subject name of 201110450180X can effectively improve the resonance speed of the air inlet system, but the invention has the problems that the front section of the air inlet main pipe and the rear section of the air inlet main pipe are in sealing connection through a sealing ring, the two sections are worn and the worn sealing ring is difficult to replace when moving relatively, and the driving device has the problems of large starting force and difficult starting at the starting moment, and particularly refer to fig. 1, so the problems need to be solved urgently.
Disclosure of Invention
The invention provides a resonance air inlet system with a variable air inlet main pipe, which aims to solve the problems of serious abrasion of a sealing ring and difficulty in starting a driving device of the conventional resonance air inlet system.
A resonance air inlet system with a variable air inlet main pipe comprises an air inlet main pipe, a positioning guide device, a driving device, a resonant cavity and an air inlet manifold unit;
in the horizontal direction, the air inlet main pipe is communicated with the air inlet manifold unit through the resonant cavity, and the air inlet main pipe and the air inlet manifold unit are respectively positioned on the left side and the right side of the resonant cavity;
the air inlet main pipe is divided into an air inlet main pipe front section and an air inlet main pipe rear section, and the air inlet main pipe rear section is close to the resonant cavity;
the rear section of the air inlet main pipe is a corrugated pipe;
the front section of the air inlet main pipe is a straight cylinder type pipeline, and the free end of the air inlet main pipe is provided with a flange; a first rack which is as long as the front section of the air inlet main pipe is welded on the lower wall surface of the front section of the air inlet main pipe, and the first rack is meshed with the driving device;
the driving device is used for driving the front section of the air inlet main pipe to reciprocate through the first rack, so that the rear section of the air inlet main pipe is extended or shortened, and the total length of the air inlet main pipe is finally controlled;
the positioning guide device is arranged on the front section of the air inlet main pipe and used for guiding and positioning the front section of the air inlet main pipe.
Preferably, the driving device comprises a driving motor, a crank rocker mechanism, a second rack and two gears;
the two gears are connected through a connecting plate, are arranged on one side of the connecting plate and are in rotating connection with the connecting plate;
the crank rocker mechanism is arranged on the other side of the yoke plate;
the two gears are positioned between the first rack and the second rack and are meshed with the first rack and the second rack, and the position of the second rack is fixed;
the driving motor pushes the connecting plate to reciprocate along the length direction of the second rack through the crank rocker mechanism, the connecting plate drives the two gears to move, and finally the front section of the air inlet main pipe where the two gears drive the first rack to reciprocate along the length direction of the second rack.
Preferably, the crank and rocker mechanism comprises a rocker and a crank;
the fixed end of the rocker is fixedly connected with the output shaft of the driving motor, the rotating end of the rocker penetrates through one end of the crank and is rotationally connected with the crank,
the connecting plate is provided with a fixed shaft which penetrates through the other end of the crank and is rotationally connected with the crank.
Preferably, the intake manifold formed by the intake manifold front section and the intake manifold rear section is one piece.
Preferably, the first structure of the intake manifold front section and the positioning and guiding device is as follows: the upper wall surface of the front section of the air inlet main pipe is provided with a first guide block, the left wall surface is provided with a second guide block, and the right wall surface is provided with a third guide block;
the positioning guide device is of a semicircular hoop structure, and 3 guide grooves, namely a first guide groove, a second guide groove and a third guide groove, are formed in the inner side wall of the semicircular hoop structure;
the first guide groove, the second guide groove and the third guide groove are respectively matched with the first guide block, the second guide block and the third guide block;
the semicircular ring-shaped hoop structure is also evenly provided with two installation fixing holes which are respectively a first installation fixing hole and a second installation fixing hole.
Preferably, the second structure of the front section of the intake manifold and the positioning and guiding device is as follows: the upper wall surface of the front section of the air inlet main pipe is provided with a semicircular guide plate, and the semicircular guide plate wraps the upper wall surface of the front section of the air inlet main pipe;
the positioning guide device is of a semicircular hoop structure, and a guide groove is formed in the inner side wall of the semicircular hoop structure and is used for being matched with the semicircular guide plate;
the semicircular ring-shaped hoop structure is also evenly provided with two installation fixing holes which are respectively a first installation fixing hole and a second installation fixing hole.
Preferably, the number of the positioning guide devices is two, and the two positioning guide devices are respectively arranged at two ends of the front section of the air inlet main pipe.
The invention has the advantages that,
according to different working conditions, the length of the air inlet main pipe is changed under the control of the driving device, the resonant rotating speed of the engine is in direct proportion to the length of the air inlet main pipe, the resonant rotating speed of the engine is changed by continuously adjusting the length of the air inlet main pipe, a good resonant effect can be realized within a wide engine rotating speed range, the air inlet efficiency of the gas engine is improved, and the output power is improved.
Compared with the prior art resonant air intake system,
on one hand, two air inlet pipelines in the prior art are coaxial and the nesting relation is cancelled, and particularly referring to fig. 1, the telescopic air inlet main pipe is replaced by the telescopic air inlet main pipe in the invention shown in fig. 2, and the front section of the air inlet main pipe where the first rack is located is driven to reciprocate, so that the rear section (namely, a corrugated pipe) of the air inlet main pipe is compressed or extended, the total length of the air inlet main pipe is extended or shortened, and the structure of the air inlet main pipe is simplified;
on the other hand, because two air inlet pipelines in the prior art are coaxial and are in a nested relation, when the two air inlet pipelines move relatively, a sealing ring between the two air inlet pipelines is seriously abraded, and the sealing ring is arranged in a groove of an inner cylinder of the air inlet pipeline and is not easy to replace, the invention provides improvement for the problem.
The third aspect has improved drive arrangement's start-up power, and two gears are located between first rack and the second rack, have the effect of bearing to air intake manifold, have avoided the bearing power of positioning guide device on vertical direction for all effort of positioning guide device are concentrated on the direction to air intake manifold anterior segment, avoid the bellows to buckle and the dislocation of air intake manifold anterior segment.
Two gears are driven to be linked through a crank rocker mechanism, the front section of the air inlet main pipe is pushed together, starting force is improved, the two gears are in contact with the front section of the air inlet main pipe, two thrust supporting points exist, and the two gears are linked to push the front section of the air inlet main pipe to reciprocate together.
Drawings
FIG. 1 is a schematic diagram of a prior art resonant intake system;
FIG. 2 is a schematic structural view of a variable intake manifold resonant intake system according to the present invention;
FIG. 3 is a schematic view of the drive mechanism in a starting position;
FIG. 4 is a dynamic diagram of the front section 1-1 of the intake manifold where the first rack 6 is located being driven to advance from the initial position of FIG. 3;
FIG. 5 is a dynamic view of the intake manifold front section 1-1 with the first rack 6 driven to retract from the position of FIG. 4;
FIG. 6 is a dynamic diagram of the forward section 1-1 of the intake manifold where the first rack 6 is driven to move backward from the position shown in FIG. 5;
FIG. 7 is a first schematic view of the front section 1-1 of the intake manifold;
fig. 8 is a first structural view of the positioning and guiding device 2, which is matched with the first structure of the front section 1-1 of the air inlet manifold;
FIG. 9 is a second schematic view of the intake manifold front section 1-1;
fig. 10 is a second configuration of the positioning guide 2, which is adapted to the second configuration of the intake manifold front section 1-1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Referring to fig. 2, the variable intake manifold resonance air intake system according to the present embodiment is described, and includes an intake manifold 1, a positioning guide device 2, a driving device 3, a resonant cavity 4, and an intake manifold unit 5;
in the horizontal direction, the air inlet main pipe 1 is communicated with the air inlet manifold unit 5 through the resonant cavity 4, and the air inlet main pipe 1 and the air inlet manifold unit 5 are respectively positioned at the left side and the right side of the resonant cavity 4;
the air inlet main pipe 1 is divided into an air inlet main pipe front section 1-1 and an air inlet main pipe rear section 1-2, and the air inlet main pipe rear section 1-2 is close to the resonant cavity 4;
the rear section 1-2 of the air inlet main pipe is a corrugated pipe;
the front section 1-1 of the air inlet main pipe is a straight cylindrical pipeline, and the free end of the air inlet main pipe is provided with a flange 8; a first rack 6 with the same length as the front section 1-1 of the air inlet main pipe is welded on the lower wall surface of the front section 1-1 of the air inlet main pipe, and the first rack 6 is meshed with the driving device 3;
the driving device 3 is used for driving the front section 1-1 of the air inlet main pipe to reciprocate through the first rack 6, so that the rear section 1-2 of the air inlet main pipe is extended or shortened, and the total length of the air inlet main pipe 1 is finally controlled;
the positioning guide device 2 is arranged on the front section 1-1 of the air inlet main pipe and used for guiding and positioning the front section 1-1 of the air inlet main pipe.
Compared with the resonance air inlet system in the prior art, on one hand, the two air inlet pipelines in the prior art are coaxial and the nesting relation is cancelled, in particular, referring to fig. 1, the telescopic air inlet main pipe 1 in fig. 2 is used for replacement, and the front section 1-1 of the air inlet main pipe where the first rack 6 is located is driven to reciprocate, so that the rear section 1-2 (namely, a corrugated pipe) of the air inlet main pipe is compressed or extended, the total length of the air inlet main pipe 1 is extended or shortened, and the structure of the air inlet main pipe 1 is simplified; on the other hand, because two air inlet pipelines in the prior art are coaxial and are in a nested relation, when the two air inlet pipelines move relatively, a sealing ring between the two air inlet pipelines is seriously abraded, and the sealing ring is arranged in a groove of an inner cylinder of the air inlet pipeline and is not easy to replace, the invention provides improvement for the problem, the air inlet main pipe 1 is a telescopic main pipe, and the air inlet main pipe 1 is directly communicated with the resonant cavity 4, so that the problems of abrasion of the sealing ring and gas leakage do not exist.
According to different working conditions, the length of the air inlet main pipe 1 is changed under the control of the driving device 3, and the resonant rotating speed of the engine is in direct proportion to the length of the air inlet main pipe.
Referring to fig. 2, the preferred embodiment is described, in which the number of the positioning guide devices 2 is two, and two positioning guide devices 2 are respectively arranged at two ends of the front section 1-1 of the intake manifold.
The two positioning and guiding devices 2 are respectively arranged at the two ends of the front section 1-1 of the air inlet main pipe, so that the positioning and guiding forces at the two ends of the front section 1-1 of the air inlet main pipe are balanced, and the positioning and guiding effects on the air inlet main pipe 1 are improved.
Referring to fig. 3 to 6, the preferred embodiment is described, in which the driving device 3 comprises a driving motor 3-1, a crank and rocker mechanism 3-2, a second rack 3-3 and two gears 3-4;
the two gears 3-4 are connected through a connecting plate 7, and the two gears 3-4 are both arranged on one side of the connecting plate 7 and are rotationally connected with the connecting plate 7;
the crank rocker mechanism 3-2 is arranged on the other side of the yoke plate 7;
the two gears 3-4 are positioned between the first rack 6 and the second rack 3-3 and are meshed with the first rack 6 and the second rack 3-3, and the position of the second rack 3-3 is fixed;
the driving motor 3-1 pushes the connecting plate 7 to reciprocate along the length direction of the second rack 3-3 through the crank rocker mechanism 3-2, the connecting plate 7 moves to drive the two gears 3-4 to move, and finally the two gears 3-4 drive the front section 1-1 of the air inlet main pipe where the first rack 6 is located to reciprocate along the length direction of the second rack 3-3.
In the preferred embodiment, the two gears 3-4 are located between the first rack 6 and the second rack 3-3, and have a bearing effect on the intake manifold 1, so that the bearing force of the positioning and guiding device 2 in the vertical direction is avoided, all the acting forces of the positioning and guiding device 2 are concentrated on the guide of the front section 1-1 of the intake manifold, and the bending of the corrugated pipe and the dislocation of the front section 1-1 of the intake manifold are avoided.
The crank rocker mechanism 3-2 drives the two gears 3-4 to be linked to push the front section 1-1 of the air inlet main pipe together, the starting force is improved, the two gears 3-4 are in contact with the front section 1-1 of the air inlet main pipe, two thrust fulcrums exist, and the two gears 3-4 are linked to push the front section 1-1 of the air inlet main pipe to reciprocate together.
Referring to fig. 3 to 6, the present preferred embodiment is described, in which the crank-rocker mechanism 3-2 includes a rocker 3-2-1 and a crank 3-2-2;
the fixed end of the rocker 3-2-1 is fixedly connected with the output shaft of the driving motor 3-1, the rotating end of the rocker 3-2-1 penetrates one end of the crank 3-2-2 and is rotatably connected with the crank 3-2-2,
the connecting plate 7 is provided with a fixed shaft 7-1, the fixed shaft 7-1 penetrates through the other end of the crank 3-2-2, and the fixed shaft 7-1 is rotatably connected with the crank 3-2-2.
In the preferred embodiment, the crank and rocker mechanism 3-2 has a simple structure and is convenient to implement.
The crank 3-2-2 at the initial position is parallel to the second rack 3-3, the rocker 3-2-1 rotates 180 degrees clockwise from the horizontal position to push the front section 1-1 of the air inlet main pipe where the first rack 6 is located to the final position, continues to rotate clockwise from 180 degrees to 360 degrees, and pulls the front section 1-1 of the air inlet main pipe where the first rack 6 is located back to the starting position from the final position.
Referring to fig. 1, the preferred embodiment will be described, in which an intake manifold 1 composed of an intake manifold front section 1-1 and an intake manifold rear section 1-2 is a single piece.
Referring to fig. 7 to 8, the preferred embodiment is described, in which a first guide block 1-1-1 is disposed on the upper wall surface of the front section 1-1 of the intake manifold, a second guide block 1-1-2 is disposed on the left wall surface, and a third guide block 1-1-3 is disposed on the right wall surface;
the positioning and guiding device 2 is of a semi-circular hoop structure, and 3 guide grooves, namely a first guide groove 2-1, a second guide groove 2-2 and a third guide groove 2-3, are formed in the inner side wall of the semi-circular hoop structure;
the first guide groove 2-1, the second guide groove 2-2 and the third guide groove 2-3 are respectively matched with the first guide block 1-1-1, the second guide block 1-1-2 and the third guide block 1-1-3;
two mounting and fixing holes are uniformly formed in the semicircular hoop structure, and the two mounting and fixing holes are a first mounting and fixing hole 2-4 and a second mounting and fixing hole 2-5 respectively.
In the preferred embodiment, a first structure of the front section 1-1 of the intake manifold is provided, specifically referring to fig. 7, and a first structure of the positioning and guiding device 2 matched with the first structure of the front section 1-1 of the intake manifold is provided, specifically referring to fig. 8, and the first structure of the front section 1-1 of the intake manifold is matched with the first structure of the positioning and guiding device 2, so that the guiding precision of the positioning and guiding device 2 is improved.
Referring to fig. 9 to 10, the preferred embodiment is described, in the preferred embodiment, a semicircular guide plate 1-1-4 is arranged on the upper wall surface of the front section 1-1 of the intake manifold, and the semicircular guide plate 1-1-4 wraps the upper wall surface of the front section 1-1 of the intake manifold;
the positioning guide device 2 is of a semi-circular hoop structure, and a guide groove is formed in the inner side wall of the semi-circular hoop structure and used for being matched with the semi-circular guide plates 1-1-4;
two mounting and fixing holes are uniformly formed in the semicircular hoop structure, and the two mounting and fixing holes are a first mounting and fixing hole 2-4 and a second mounting and fixing hole 2-5 respectively.
In the preferred embodiment, a second structure of the front section 1-1 of the intake manifold is provided, specifically referring to fig. 9, and a second structure of the positioning and guiding device 2 matched with the second structure of the front section 1-1 of the intake manifold is provided, specifically referring to fig. 10, the second structure of the front section 1-1 of the intake manifold is matched with the second structure of the positioning and guiding device 2, and the semicircular guide plate 1-1-4 is conveniently embedded in the guide groove on the positioning and guiding device 2, and has a large holding area, so that the front section 1-1 of the intake manifold can be guided conveniently, and the guiding precision is improved.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
Claims (6)
1. A resonance air inlet system with a variable air inlet main pipe comprises an air inlet main pipe (1), a positioning guide device (2), a driving device (3), a resonant cavity (4) and an air inlet manifold unit (5);
in the horizontal direction, the air inlet main pipe (1) is communicated with the air inlet manifold unit (5) through the resonant cavity (4), and the air inlet main pipe (1) and the air inlet manifold unit (5) are respectively positioned on the left side and the right side of the resonant cavity (4);
the air inlet main pipe (1) is divided into an air inlet main pipe front section (1-1) and an air inlet main pipe rear section (1-2), and the air inlet main pipe rear section (1-2) is close to the resonant cavity (4);
the rear section (1-2) of the air inlet main pipe is a corrugated pipe;
the front section (1-1) of the air inlet main pipe is a straight cylindrical pipeline, and the free end of the air inlet main pipe is provided with a flange (8); a first rack (6) with the same length as the front section (1-1) of the air inlet main pipe is welded on the lower wall surface of the front section (1-1) of the air inlet main pipe, and the first rack (6) is meshed with the driving device (3);
the driving device (3) is used for driving the front section (1-1) of the air inlet main pipe to reciprocate through the first rack (6), so that the rear section (1-2) of the air inlet main pipe is extended or shortened, and the total length of the air inlet main pipe (1) is finally controlled;
the positioning guide device (2) is arranged on the front section (1-1) of the air inlet main pipe and is used for guiding and positioning the front section (1-1) of the air inlet main pipe;
the device is characterized in that the driving device (3) comprises a driving motor (3-1), a crank and rocker mechanism (3-2), a second rack (3-3) and two gears (3-4);
the two gears (3-4) are connected through a connecting plate (7), and the two gears (3-4) are arranged on one side of the connecting plate (7) and are rotationally connected with the connecting plate (7);
the crank rocker mechanism (3-2) is arranged on the other side of the yoke plate (7);
the two gears (3-4) are positioned between the first rack (6) and the second rack (3-3) and are meshed with the first rack and the second rack, and the position of the second rack (3-3) is fixed;
the driving motor (3-1) pushes the connecting plate (7) to reciprocate along the length direction of the second rack (3-3) through the crank rocker mechanism (3-2), the connecting plate (7) moves to drive the two gears (3-4) to move, and finally the two gears (3-4) drive the front section (1-1) of the air inlet main pipe where the first rack (6) is located to reciprocate along the length direction of the second rack (3-3).
2. A variable intake manifold resonant intake system according to claim 1, wherein the crank and rocker mechanism (3-2) comprises a rocker (3-2-1) and a crank (3-2-2);
the fixed end of the rocker (3-2-1) is fixedly connected with the output shaft of the driving motor (3-1), the rotating end of the rocker (3-2-1) penetrates through one end of the crank (3-2-2) and is rotatably connected with the crank (3-2-2),
the connecting plate (7) is provided with a fixed shaft (7-1), the fixed shaft (7-1) penetrates through the other end of the crank (3-2-2), and the fixed shaft (7-1) is rotatably connected with the crank (3-2-2).
3. A variable intake manifold resonance induction system according to claim 1, characterized in that the intake manifold (1) formed by the intake manifold front section (1-1) and the intake manifold rear section (1-2) is one piece.
4. The variable intake manifold resonance air intake system according to claim 1, characterized in that the upper wall surface of the intake manifold front section (1-1) is provided with a first guide block (1-1-1), the left wall surface is provided with a second guide block (1-1-2), and the right wall surface is provided with a third guide block (1-1-3);
the positioning guide device (2) is of a semi-circular hoop structure, and the inner side wall of the semi-circular hoop structure is provided with 3 guide grooves which are a first guide groove (2-1), a second guide groove (2-2) and a third guide groove (2-3) respectively;
the first guide groove (2-1), the second guide groove (2-2) and the third guide groove (2-3) are respectively matched with the first guide block (1-1-1), the second guide block (1-1-2) and the third guide block (1-1-3);
two mounting and fixing holes are uniformly formed in the semicircular ring-shaped hoop structure, and the two mounting and fixing holes are a first mounting and fixing hole (2-4) and a second mounting and fixing hole (2-5) respectively.
5. The variable intake manifold resonance air intake system according to claim 1, characterized in that the upper wall surface of the intake manifold front section (1-1) is provided with a semicircular guide plate (1-1-4), and the semicircular guide plate (1-1-4) wraps the upper wall surface of the intake manifold front section (1-1);
the positioning guide device (2) is of a semi-circular hoop structure, and a guide groove is formed in the inner side wall of the semi-circular hoop structure and used for being matched with the semi-circular guide plate (1-1-4);
two mounting and fixing holes are uniformly formed in the semicircular ring-shaped hoop structure, and the two mounting and fixing holes are a first mounting and fixing hole (2-4) and a second mounting and fixing hole (2-5) respectively.
6. The variable intake manifold resonance intake system according to claim 1, wherein the number of the positioning guide devices (2) is two, and the two positioning guide devices (2) are respectively arranged at two ends of the front section (1-1) of the intake manifold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910605882.7A CN110259570B (en) | 2019-07-05 | 2019-07-05 | Resonance air inlet system with variable air inlet main pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910605882.7A CN110259570B (en) | 2019-07-05 | 2019-07-05 | Resonance air inlet system with variable air inlet main pipe |
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| DE3630488A1 (en) * | 1985-09-19 | 1987-03-26 | Volkswagen Ag | Intake pipe of adjustable length for an internal combustion engine |
| FR2818319B1 (en) * | 2000-12-19 | 2003-06-27 | Renault | AIR INTAKE CIRCUIT OF A SUPERCHARGED ENGINE |
| FR2931898B1 (en) * | 2008-05-28 | 2010-05-14 | Renault Sas | HIGH PRESSURE AIR SUPPLY LINE OF A SUPERIOR INTERNAL COMBUSTION ENGINE |
| CN202381163U (en) * | 2011-12-29 | 2012-08-15 | 中国船舶重工集团公司第七0三研究所 | Electronic control electrodeless variable inlet manifold resonance air inlet system of gas engine |
| CN102434267B (en) * | 2012-01-31 | 2013-05-15 | 中国船舶重工集团公司第七�三研究所 | Resonance intake system of electronic control stepless variable inlet manifold of gas engine |
| CN102628395B (en) * | 2012-04-24 | 2013-07-31 | 哈尔滨工程大学 | Electrodeless variable resonance air inlet system |
| CN103742251A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Variable air inlet system for engine |
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