CN108798818B - Valve mechanism and engine system - Google Patents
Valve mechanism and engine system Download PDFInfo
- Publication number
- CN108798818B CN108798818B CN201810612451.9A CN201810612451A CN108798818B CN 108798818 B CN108798818 B CN 108798818B CN 201810612451 A CN201810612451 A CN 201810612451A CN 108798818 B CN108798818 B CN 108798818B
- Authority
- CN
- China
- Prior art keywords
- valve
- shaft
- air
- centrifugal
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lift Valve (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention relates to the technical field of engines, in particular to a valve timing mechanism and an engine system, wherein a valve timing shaft valve is provided with an air inlet channel and an air outlet channel, the valve timing shaft valve is rotationally connected with a valve timing cavity through a valve timing rotating shaft, the valve timing rotating shaft is connected with an output shaft of a driving device and is driven by the driving device to rotate, and double control of variable valve timing and air inlet and outlet time is realized. When the cylinder is in an air inlet stroke, the air distribution shaft valve rotates, and the air inlet channel is communicated with the air inlet and the air distribution hole so as to lead external air into the cylinder; when the cylinder is in the exhaust stroke, the valve of the gas distribution shaft rotates, and the exhaust channel is communicated with the gas distribution hole and the exhaust port so as to exhaust gas in the cylinder; when the cylinder is in compression stroke or power stroke, the valve shaft valve rotates, and the valve shaft valve seals the air inlet, the air outlet and the valve hole. Through the valve mechanism, the effects of simplifying the mechanical structure, stably running, reducing the power consumption and reducing the weight, the volume and the noise are achieved while the valve function of the piston engine is perfected.
Description
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a valve mechanism and an engine system.
Background
The valve mechanism of the current piston engine mainly comprises a cylinder cover, a valve spring, a tappet, a rocker arm shaft, a cam shaft and a timing mechanism, wherein the valve, the valve spring, the tappet, the rocker arm and the cam assembly are independently arranged in a plurality of groups for each cylinder. The engine crankshaft drives the camshaft to rotate through the timing mechanism, the valve is driven by the rocker mechanism to overcome the resistance of the valve spring to do reciprocating motion, and the opening and closing of the air inlet and the air outlet are completed according to the air distribution phase, so that the air inlet and the air outlet control function of the air cylinder is realized. The traditional cam valve type valve actuating mechanism has the defects of more transmission parts, complex mechanical structure, quick wear of a machine part caused by mechanical reciprocating motion of a valve rocker mechanism, high running noise, high power consumption caused by valve spring resistance driving valve displacement, high failure rate of the cam valve type valve actuating mechanism and high power consumption, and becomes one of important factors for restricting the improvement of the overall performance of a piston engine system.
Disclosure of Invention
The invention aims to provide a valve mechanism and an engine system, which are used for solving the technical problems of complex mechanical structure, high running noise, high power consumption and high failure rate of the valve mechanism in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme: the valve mechanism is connected with a driving device and used for driving the valve mechanism to operate, the valve mechanism is arranged on a cylinder, the cylinder is provided with an air chamber and a vent hole communicated with the air chamber, and the cylinder is provided with four strokes which are respectively an air inlet stroke, a compression stroke, a power stroke and an exhaust stroke. The air distribution mechanism comprises an air distribution shell, an air distribution shaft valve and an air distribution rotating shaft, wherein the air distribution shaft valve is connected with the air distribution rotating shaft, the axes of the air distribution shaft valve and the air distribution rotating shaft are the same, and the air distribution shaft valve is provided with an air inlet channel and an air outlet channel;
the air distribution shell is provided with an air distribution cavity, an air inlet, an air outlet, an air distribution hole and a shaft hole, wherein the air distribution cavity is communicated with the air distribution cavity, the air distribution shaft valve is arranged in the air distribution cavity and is matched with the air distribution cavity, one end part of the air distribution shaft penetrates out of the shaft hole and is connected and linked with the driving device to drive the air distribution shaft valve to rotate, and the air distribution hole is communicated with the air vent;
the air inlet channel is used for communicating the air inlet with the air distribution hole when the cylinder is in the air inlet stroke so as to lead external air into the cylinder;
the exhaust passage communicates the gas distribution hole and the exhaust port when the cylinder is in the exhaust stroke so as to exhaust gas in the cylinder;
the valve shaft valve seals the air inlet, the air outlet and the valve hole when the air cylinder is in the compression stroke and the power stroke.
Further, the air inlet channel is provided with a first air inlet channel opening and a first air outlet channel opening, the air outlet channel is provided with a second air inlet channel opening and a second air outlet channel opening, and the first air outlet channel opening and the second air inlet channel opening are positioned on the same radial surface perpendicular to the axis of the air distribution shaft valve;
the first air outlet port is in butt joint with the air distribution hole when the air cylinder is in the air inlet stroke;
the second intake runner port interfaces with the valve opening when the cylinder is in the exhaust stroke.
Further, the air distribution rotating shaft comprises a first air distribution shaft and a second air distribution shaft;
the valve body is provided with a first valve body end and a second valve body end opposite to the first valve body end, the valve body end is provided with a first shaft hole on the end face of the first valve body end and along the axis of the valve body, the valve body end is provided with a second shaft hole on the end face of the second valve body end and along the axis of the valve body, one end of the first valve body is inserted in the first shaft hole, the other end of the first valve body end is rotationally connected with the cavity wall of the valve body cavity and is axially limited on the cavity wall of the valve body cavity, one end of the second valve body end is inserted in the second shaft hole, the other end of the second valve body end extends to the outside from the shaft hole, and the end of the second valve body end outside the valve body shell is connected with the output shaft of the driving device.
Further, the second air distribution shaft comprises a connecting shaft section and a driving shaft section, one end of the driving shaft section is in butt joint with one end of the connecting shaft section, the connecting shaft section is inserted into the second shaft hole, the cross section of the connecting shaft section is polygonal, and the connecting shaft section is matched with the second shaft hole; the driving shaft section penetrates through the shaft hole, is axially limited in the shaft hole and is in running fit with the shaft hole.
Further, the valve mechanism further comprises an automatic adjusting structure for adjusting the size of the air inflow, and the automatic adjusting structure comprises a plurality of centrifugal assemblies;
the air distribution shaft valve is provided with a plurality of centrifugal sliding grooves on the end face of the first air distribution end, and each centrifugal sliding groove points to the center of the end face of the first air distribution end and is uniformly arranged around the axis of the air distribution shaft valve;
the first air distribution shaft comprises a main shaft body and a plurality of connecting lugs connected with the main shaft body, the connecting lugs are uniformly distributed on the periphery of the main shaft body, one end part of each centrifugal assembly is respectively connected with one connecting lug in a rotating way, and the other end part of each centrifugal assembly is respectively inserted into one centrifugal chute and is limited in the centrifugal chute along the axial direction of the air distribution shaft valve and is in sliding fit with the centrifugal chute;
the gas distribution shaft valve axially slides relative to the axis of the first gas distribution shaft and the second gas distribution shaft, and when the main shaft body rotates, the centrifugal assemblies are opened to the periphery side under the action of centrifugal force and pull the gas distribution shaft valve to slide towards the direction of the first gas distribution shaft so as to gradually increase the joint flux of the gas distribution hole and the gas inlet channel.
Further, each centrifugal assembly comprises a centrifugal hammer and a swing arm, one end part of each swing arm is respectively and rotatably connected with one connecting lug, the other end part of each swing arm is respectively and rotatably connected with one centrifugal hammer, and one end part of each centrifugal hammer is respectively inserted into one centrifugal chute, is limited in the centrifugal chute along the axial direction of the valve of the air distribution shaft and is in sliding fit with the centrifugal chute.
Further, each centrifugal hammer comprises a main hammer body and a connecting arm connected with the main hammer body, the main hammer body is arranged in the centrifugal chute and is matched with the centrifugal chute, one end part of the connecting arm is inserted into the centrifugal chute and is fixedly connected with the main hammer body, and the other end part of the connecting arm is rotationally connected with the swing arm.
Further, a first transfer slot and a second transfer slot are formed at two end parts of each swing arm, the connecting lugs are inserted into the first transfer slots and are rotationally connected with the first transfer slots, and one end part of the centrifugal hammer is inserted into the second transfer slots and is rotationally connected with the second transfer slots.
Further, the valve mechanism further comprises a sealing ring, the valve housing is provided with an annular mounting groove in the cavity wall of the valve accommodating cavity, the annular mounting groove is located at the periphery of the valve hole and communicated with the valve hole, one end of the sealing ring is inserted into the annular mounting groove, and the other end of the sealing ring abuts against the side wall of the valve shaft and is attached to the valve shaft.
The invention also provides an engine system comprising the valve mechanism.
The valve mechanism and the engine system provided by the invention have the beneficial effects that: the valve timing mechanism adopts a valve timing control technology, an air inlet channel and an air outlet channel are arranged on a valve of a valve shaft, the valve shaft is rotationally connected with a valve cavity through a valve shaft, the valve shaft is connected with an output shaft of a driving device and is driven by the driving device to rotate, and double control of variable valve timing and air inlet and outlet time is realized. When the cylinder is in an air inlet stroke, the air distribution shaft valve is driven by the driving device to rotate by a corresponding angle, and at the moment, the air inlet channel is communicated with the air inlet and the air distribution hole so as to lead external air into the cylinder; when the cylinder is in the exhaust stroke, the valve of the air distribution shaft is driven by the driving device to rotate by a corresponding angle, and at the moment, the exhaust channel is communicated with the air distribution hole and the exhaust port so as to exhaust the air in the cylinder; when the cylinder is in a compression stroke, the valve of the valve shaft is driven by the driving device to rotate by a corresponding angle, and at the moment, the valve of the valve shaft seals the air inlet, the air outlet and the valve hole; when the cylinder is in the power stroke, the valve shaft valve is driven by the driving device to rotate by a corresponding angle, and at the moment, the valve shaft valve seals the air inlet, the air outlet and the valve hole. Through the valve mechanism, the effects of simplifying the mechanical structure, stably running, reducing the power consumption and reducing the weight, the volume and the noise are achieved while the valve function of the piston engine is perfected.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of an engine system provided by an embodiment of the present invention;
FIG. 2 is a partial perspective view of a valve train provided by an embodiment of the present invention;
FIG. 3 is a partial perspective view of a gas distribution housing provided by an embodiment of the present invention;
fig. 4 is a perspective assembly view of a first valve shaft and an automatic adjusting structure according to an embodiment of the present invention.
Wherein, each reference sign in the figure:
| cylinder | 100 | Air chamber | 101 |
| Valve train | 500 | Air distribution shell | 510 |
| Valve of air distribution shaft | 520 | Air distribution rotating shaft | 530 |
| Air inlet channel | 521 | Exhaust passage | 522 |
| Air distribution cavity | 506 | Air inlet | 502 |
| Exhaust port | 503 | Shaft hole | 504 |
| Annular mounting groove | 505 | First air inlet port | 5211 |
| First air outlet port | 5212 | Second air inlet port | 5221 |
| Second air outlet port | 5222 | First air distribution shaft | 531 |
| Second air distribution shaft | 532 | First air distribution end | 523 |
| Second air distribution end | 524 | First shaft hole | 525 |
| Second shaft hole | 526 | First mounting hole | 507 |
| Second mounting hole | 508 | Drive shaft section | 5321 |
| Automatic adjusting structure | 540 | Centrifugal assembly | 541 |
| Centrifugal chute | 509 | Main shaft body | 5311 |
| Connecting lug | 5312 | Centrifugal hammer | 542 |
| Swing arm | 543 | Main hammer body | 5421 |
| Connecting arm | 5422 | First adapter slot | 5431 |
| Second switching slot | 5432 | Engine system | 1 |
| Air distribution hole | 501 |
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly mounted or disposed on the other element through a third member. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element through a third member.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 1 to 3, the embodiment of the present invention provides a valve train connected to a driving device for driving the valve train 500 to operate, wherein the valve train 500 is disposed on a cylinder 100, the cylinder 100 has a gas chamber 101 and a vent hole communicating with the gas chamber 101, and the cylinder 100 has four strokes, namely an intake stroke, a compression stroke, a power stroke and an exhaust stroke. The valve train 500 comprises a valve housing 510, a valve shaft 520 and a valve shaft 530, wherein the valve shaft 520 is connected with the valve shaft 530, and the two shafts are the same, and the valve shaft 520 is provided with an air inlet channel 521 and an air outlet channel 522.
The air distribution shell 510 is provided with an air distribution cavity 506, an air inlet 502, an air outlet 503, an air distribution hole 501 and an axle hole 504 which are communicated with the air distribution cavity 506, the air distribution shaft valve 520 is arranged in the air distribution cavity 506 and is matched with the air distribution cavity 506, one end part of the air distribution shaft 530 penetrates out of the axle hole 504 and is connected and linked with a driving device to drive the air distribution shaft valve 520 to rotate, and the air distribution hole 501 is communicated with the air vent.
The intake passage 521 communicates the intake port 502 and the valve hole 501 when the cylinder 100 is in the intake stroke to introduce the external air into the cylinder 100.
The exhaust passage 522 communicates the gas distribution hole 501 and the exhaust port 503 to exhaust the gas in the cylinder 100 when the cylinder 100 is in the exhaust stroke.
The valve spool 520 closes the intake port 502, the exhaust port 503, and the valve port 501 when the cylinder 100 is in the compression stroke and the power stroke.
In this embodiment, the valve train 500 adopts a valve timing control technology, an air inlet channel 521 and an air outlet channel 522 are provided on a valve shaft 520, the valve shaft 520 is rotatably connected to the valve cavity 506 through a valve shaft 530, the valve shaft 530 is connected to an output shaft of a driving device, and is driven by the driving device to rotate, so as to realize dual control of variable valve timing and air inlet and outlet time. When the cylinder 100 is in the intake stroke, the valve 520 is driven by the driving device to rotate by a corresponding angle, and at this time, the intake passage 521 communicates with the intake port 502 and the valve hole 501 to introduce external air into the cylinder 100; when the cylinder 100 is in the exhaust stroke, the distributing shaft valve 520 is driven by the driving device to rotate by a corresponding angle, and at this time, the exhaust channel 522 is communicated with the distributing hole 501 and the exhaust port 503 to exhaust the gas in the cylinder 100; when the cylinder 100 is in the compression stroke, the valve 520 is driven by the driving device to rotate by a corresponding angle, and at this time, the valve 520 seals the air inlet 502, the air outlet 503 and the air distribution hole 501; when the cylinder 100 is in the power stroke, the valve 520 is driven by the driving device to rotate by a corresponding angle, and at this time, the valve 520 seals the air inlet 502, the air outlet 503 and the air distribution hole 501. Through the valve mechanism 500, the effects of simplifying the mechanical structure, stably running, reducing power consumption, reducing weight, volume and noise are achieved while the valve mechanism function of the piston engine is perfected.
In this embodiment, the air inlet 502 and the air outlet 503 are disposed on two opposite side walls of the air distribution chamber 506 of the air distribution housing 510.
In the present embodiment, the valve train 500 is suitable for a multi-cylinder four-stroke internal combustion engine, that is, the valve train is provided in plural numbers in one-to-one correspondence with each cylinder 100.
Referring to fig. 1 to 3, further, the air distribution housing 510 is provided with an annular mounting groove 505 on a cavity wall of the air distribution cavity 506, and the annular mounting groove 505 is located at an outer periphery of the air distribution hole 501 and is communicated with the air distribution hole 501. The valve train 500 further includes a sealing ring (not shown) having one end inserted into the annular seating groove 505 and the other end abutting against the outer surface of the valve shaft 520, preventing gas from leaking out through the gas distribution holes 501 during the compression stroke of the cylinder 100. Specifically, the sealing ring is attached to the sidewall of the valve shaft 520.
Specifically, the seal ring is a graphite seal ring.
Referring to fig. 1 to 3, further, the air inlet channel 521 has a first air inlet opening 5211 and a first air outlet opening 5212, and the air outlet channel 522 has a second air inlet opening 5221 and a second air outlet opening 5222, wherein the first air outlet opening 5212 and the second air inlet opening 5221 are located on the same radial plane perpendicular to the axis of the air distribution shaft valve 520.
The first port 5212 interfaces with the port 501 when the cylinder 100 is in the intake stroke.
The second intake port 5221 interfaces with the valve opening 501 when the cylinder 100 is in the exhaust stroke.
In this embodiment, with this structure, the cylinder 100 only needs to be provided with one ventilation hole communicating with the air chamber 101, and the air distribution housing 510 only needs to be provided with one air distribution hole 501 communicating with the ventilation hole, which effectively simplifies the structure, simplifies the manufacturing process, and improves the alignment accuracy of the air intake passage 521 and the exhaust passage 522 with the air distribution hole 501.
Referring to fig. 1 to 3, further, the air distribution shaft 530 includes a first air distribution shaft 531 and a second air distribution shaft 532.
The gas-distributing shaft valve 520 has a first gas-distributing end 523 and a second gas-distributing end 524 opposite to the first gas-distributing end 523, the gas-distributing shaft valve 520 is provided with a first shaft hole 525 at the end face of the first gas-distributing end 523 and along the axis of the gas-distributing shaft valve 520, the gas-distributing shaft valve 520 is provided with a second shaft hole 526 at the end face of the second gas-distributing end 524 and along the axis of the gas-distributing shaft valve 520, one end part of the first gas-distributing shaft 531 is inserted into the first shaft hole 525 and the other end part is rotatably connected with the cavity wall of the gas-distributing cavity 506 and axially limited to the cavity wall of the gas-distributing cavity 506, one end part of the second gas-distributing shaft 532 is inserted into the second shaft hole 526 and the other end part extends out from the shaft hole 504, and the end part of the second gas-distributing shaft 532 outside the gas-distributing housing 510 is connected with the output shaft of the driving device.
In this embodiment, the valve train 500 further includes a first bearing and a second bearing, the first valve shaft 531 is inserted into the bearing hole of the first bearing and is axially limited in the bearing hole, and the second valve shaft 532 is inserted into the bearing hole of the second bearing and is axially limited in the bearing hole. Specifically, a first mounting hole 507 for mounting a first bearing is formed in a cavity wall of the air distribution housing 510 opposite to the first air distribution shaft 531 in the air distribution cavity 506, an outer ring of the first bearing is fixed in the first mounting hole 507, and the first mounting hole 507 is a blind hole. The gas distribution housing 510 is provided with a second mounting hole 508 for mounting a second bearing on a cavity wall opposite to the second gas distribution shaft 532 in the gas distribution cavity 506, and an outer ring of the second bearing is fixed to the second mounting hole 508, wherein the shaft hole 504 is opposite to and communicated with the second mounting hole 508.
Referring to fig. 1 and 2, further, the second air distribution shaft 532 includes a connecting shaft section (not shown) and a driving shaft section 5321 with one end abutting against one end of the connecting shaft section, wherein the connecting shaft section is inserted into the second shaft hole 526, and the cross section of the connecting shaft section is polygonal, and the connecting shaft section is adapted to the second shaft hole 526; the drive shaft section 5321 extends through the shaft aperture 504 and is axially constrained to the shaft aperture 504 and is in rotational engagement with the shaft aperture 504. Thus, when the second air distribution shaft 532 rotates, the air distribution shaft valve 520 can be driven to synchronously rotate, and the structure is simple and the manufacturing is convenient.
Referring to fig. 2 to 4, further, the valve train 500 further includes an automatic adjusting structure 540 for adjusting the intake air amount, and the automatic adjusting structure 540 includes a plurality of centrifugal assemblies 541.
The valve shaft 520 is provided with a plurality of centrifugal sliding grooves 509 on the end face of the first valve end 523, and each centrifugal sliding groove 509 points to the center of the end face of the first valve end 523 and is uniformly arranged around the axis of the valve shaft 520.
The first air distribution shaft 531 includes a main shaft body 5311 and a plurality of connection lugs 5312 connected with the main shaft body 5311, wherein each connection lug 5312 is uniformly distributed on the circumference side of the main shaft body 5311, one end of each centrifugal component 541 is respectively connected with one connection lug 5312 in a rotating way, and the other end of each centrifugal component 541 is respectively inserted into a centrifugal chute 509 and limited in the centrifugal chute 509 along the axial direction of the air distribution shaft valve 520 and is in sliding fit with the centrifugal chute 509.
The valve 520 slides axially relative to the axis of the first valve 531 and the second valve 532, and when the main shaft 5311 rotates, the centrifugal components 541 are opened circumferentially by centrifugal force and pull the valve 520 to slide in the direction of the first valve 531, so as to gradually increase the amount of the fluid passing through the valve 501 and the intake passage 521.
In the present embodiment, by setting the automatic adjusting structure 540, the amount of the air intake can be adjusted by controlling the rotation speed of the output shaft of the driving device to adjust the air distribution hole 501 and the air intake channel 521. For example, when the driver accelerates, the rotation speed of the output shaft of the driving device, that is, the rotation speed of the gas distribution shaft valve 520 is increased, one end of each centrifugal assembly 541 is rotationally connected to a connection lug 5312 on the first gas distribution shaft 531, and the other end is respectively slidingly connected to a centrifugal chute 509, and when the rotation speed of the gas distribution shaft valve 520 is increased, each centrifugal assembly 541 is opened around the respective connection lug 5312 and in a direction away from each other under the centrifugal force, and because one end of each centrifugal assembly 541 is limited on the first gas distribution shaft 531, as each centrifugal assembly 541 is opened, the gas distribution shaft valve 520 is pulled to move in a direction towards the first gas distribution shaft 531, so as to increase the connection amount between the gas inlet channel 521 and the gas distribution hole 501, and further increase the gas inlet amount, so as to increase the power generated by the engine.
Referring to fig. 2 to 4, further, each centrifugal component 541 includes a centrifugal weight 542 and a swing arm 543, one end of each swing arm 543 is rotatably connected to a connecting lug 5312, and the other end of each swing arm 543 is rotatably connected to a centrifugal weight 542, and one end of each centrifugal weight 542 is respectively inserted into a centrifugal chute 509 and limited to the centrifugal chute 509 along the axial direction of the valve 520 and slidably engaged with the centrifugal chute 509.
Referring to fig. 2 to 4, further, each centrifugal hammer 542 includes a main hammer body 5421 and a connecting arm 5422 connected to the main hammer body 5421, wherein the main hammer body 5421 is disposed in the centrifugal chute 509 and is adapted to the centrifugal chute 509, one end of the connecting arm 5422 is inserted into the centrifugal chute 509 and is fixedly connected to the main hammer body 5421, and the other end is rotatably connected to the swing arm 543.
In this embodiment, the cross section of the main weight 5421 may be polygonal, circular, elliptical, or the like.
Specifically, each main weight 5421 is inserted into place by an outer port of each centrifugal chute 509.
Specifically, the slots of each centrifugal chute 509 may be sized for insertion and sliding movement of the connecting arms 5422 along the slots.
Referring to fig. 2 to 4, further, each swing arm 543 has a first adapting slot 5431 and a second adapting slot 5432 at two ends thereof, and a connecting lug 5312 is inserted into the first adapting slot 5431 and is rotatably connected with the first adapting slot 5431, and one end of the centrifugal hammer 542 is inserted into the second adapting slot 5432 and is rotatably connected with the second adapting slot 5432. In this way, on the one hand a rotational connection is achieved, and on the other hand a quick positioning and assembly is facilitated.
Referring to fig. 1, an engine system is further provided according to an embodiment of the present invention, including a valve train as described above.
In the present embodiment, the valve train is applied to the engine system 1, and the effects of simplifying the mechanical structure, stably operating, reducing the power consumption and reducing the weight, the volume and the noise are achieved while improving the valve train function of the piston engine.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (9)
1. The valve mechanism is connected with a driving device and used for driving the valve mechanism to operate, the valve mechanism is arranged on a cylinder, the cylinder is provided with an air chamber and an air vent communicated with the air chamber, the cylinder is provided with four strokes which are respectively an air inlet stroke, a compression stroke, a power stroke and an air exhaust stroke, and the valve mechanism is characterized by comprising a valve housing, a valve shaft valve and a valve shaft, the valve shaft valve is connected with the valve shaft and has the same axis, and the valve shaft valve is provided with an air inlet channel and an air exhaust channel;
the air distribution shell is provided with an air distribution cavity, an air inlet, an air outlet, an air distribution hole and a shaft hole, wherein the air distribution cavity is communicated with the air distribution cavity, the air distribution shaft valve is arranged in the air distribution cavity and is matched with the air distribution cavity, one end part of the air distribution shaft penetrates out of the shaft hole and is connected and linked with the driving device to drive the air distribution shaft valve to rotate, and the air distribution hole is communicated with the air vent;
the air inlet channel is used for communicating the air inlet with the air distribution hole when the cylinder is in the air inlet stroke so as to lead external air into the cylinder;
the exhaust passage communicates the gas distribution hole and the exhaust port when the cylinder is in the exhaust stroke so as to exhaust gas in the cylinder;
the valve shaft valve seals the air inlet, the air outlet and the valve hole when the air cylinder is in the compression stroke and the power stroke;
the air distribution rotating shaft comprises a first air distribution shaft and a second air distribution shaft;
the valve body is provided with a first valve body end and a second valve body end opposite to the first valve body end, the valve body end is provided with a first shaft hole on the end face of the first valve body end and along the axis of the valve body, the valve body end is provided with a second shaft hole on the end face of the second valve body end and along the axis of the valve body, one end of the first valve body is inserted in the first shaft hole, the other end of the first valve body end is rotationally connected with the cavity wall of the valve body cavity and is axially limited on the cavity wall of the valve body cavity, one end of the second valve body end is inserted in the second shaft hole, the other end of the second valve body end extends to the outside from the shaft hole, and the end of the second valve body end outside the valve body shell is connected with the output shaft of the driving device.
2. The valve train of claim 1 wherein the inlet passage has a first inlet port and a first outlet port, the outlet passage has a second inlet port and a second outlet port, wherein the first outlet port and the second inlet port are located on the same radial plane perpendicular to the axis of the valve shaft;
the first air outlet port is in butt joint with the air distribution hole when the air cylinder is in the air inlet stroke;
the second intake runner port interfaces with the valve opening when the cylinder is in the exhaust stroke.
3. The valve train of claim 1, wherein the second valve shaft comprises a connecting shaft section and a driving shaft section with one end abutting against one end of the connecting shaft section, wherein the connecting shaft section is inserted into the second shaft hole and has a polygonal cross section, and the connecting shaft section is matched with the second shaft hole; the driving shaft section penetrates through the shaft hole, is axially limited in the shaft hole and is in running fit with the shaft hole.
4. A valve train according to claim 1, further comprising an automatic adjustment structure for adjusting the amount of intake air, the automatic adjustment structure comprising a plurality of centrifugal assemblies;
the air distribution shaft valve is provided with a plurality of centrifugal sliding grooves on the end face of the first air distribution end, and each centrifugal sliding groove points to the center of the end face of the first air distribution end and is uniformly arranged around the axis of the air distribution shaft valve;
the first air distribution shaft comprises a main shaft body and a plurality of connecting lugs connected with the main shaft body, the connecting lugs are uniformly distributed on the periphery of the main shaft body, one end part of each centrifugal assembly is respectively connected with one connecting lug in a rotating way, and the other end part of each centrifugal assembly is respectively inserted into one centrifugal chute and is limited in the centrifugal chute along the axial direction of the air distribution shaft valve and is in sliding fit with the centrifugal chute;
the gas distribution shaft valve axially slides relative to the axis of the first gas distribution shaft and the second gas distribution shaft, and when the main shaft body rotates, the centrifugal assemblies are opened to the periphery side under the action of centrifugal force and pull the gas distribution shaft valve to slide towards the direction of the first gas distribution shaft so as to gradually increase the joint flux of the gas distribution hole and the gas inlet channel.
5. The valve train of claim 4, wherein each of the centrifugal assemblies includes a centrifugal ram and a swing arm, one end of each of the swing arms is rotatably connected to one of the connecting lugs and the other end is rotatably connected to one of the centrifugal rams, and one end of each of the centrifugal rams is inserted into one of the centrifugal slide grooves and is restrained in the centrifugal slide groove along the axial direction of the valve shaft and slidably engaged with the centrifugal slide groove.
6. A valve train according to claim 5, wherein each of the centrifugal hammers comprises a main hammer body and a connecting arm connected to the main hammer body, the main hammer body is disposed in the centrifugal chute and adapted to the centrifugal chute, and one end of the connecting arm is inserted into the centrifugal chute and fixedly connected to the main hammer body, and the other end of the connecting arm is rotatably connected to the swing arm.
7. The valve train of claim 5, wherein each swing arm has a first adapter slot and a second adapter slot formed at both ends thereof, the connecting lug is inserted into the first adapter slot and is rotatably connected to the first adapter slot, and one end of the centrifugal hammer is inserted into the second adapter slot and is rotatably connected to the second adapter slot.
8. A valve train according to any one of claims 1 to 7, further comprising a sealing ring, wherein the valve housing is provided with an annular mounting groove in the cavity wall of the valve accommodating cavity, the annular mounting groove is located at the periphery of the valve hole and is communicated with the valve hole, and one end of the sealing ring is inserted into the annular mounting groove, and the other end of the sealing ring abuts against the side wall of the valve shaft and is attached to the valve of the valve shaft.
9. An engine system comprising a valve train according to any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612451.9A CN108798818B (en) | 2018-06-14 | 2018-06-14 | Valve mechanism and engine system |
| PCT/CN2019/090949 WO2019238070A1 (en) | 2018-06-14 | 2019-06-12 | Valve mechanism and engine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810612451.9A CN108798818B (en) | 2018-06-14 | 2018-06-14 | Valve mechanism and engine system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108798818A CN108798818A (en) | 2018-11-13 |
| CN108798818B true CN108798818B (en) | 2023-12-26 |
Family
ID=64085905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810612451.9A Active CN108798818B (en) | 2018-06-14 | 2018-06-14 | Valve mechanism and engine system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108798818B (en) |
| WO (1) | WO2019238070A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798818B (en) * | 2018-06-14 | 2023-12-26 | 倪梓欣 | Valve mechanism and engine system |
| CN208441929U (en) * | 2018-07-16 | 2019-01-29 | 倪梓欣 | A kind of multi-cylinder engine system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191226286A (en) * | 1911-11-16 | 1913-04-03 | Hugo Lentz | Improvements in Rotary Slide Valves for Internal Combustion Engines. |
| GB922073A (en) * | 1958-10-22 | 1963-03-27 | Vilnis Aleksander Budachs | Improvements in and relating to internal combustion engines |
| JPH051550A (en) * | 1991-06-20 | 1993-01-08 | Mitsubishi Heavy Ind Ltd | Four-cycle engine |
| CN2661929Y (en) * | 2003-10-01 | 2004-12-08 | 重庆宗申技术开发研究有限公司 | Rotating type valve mechanism of four-stroke internal combustion engine |
| CN201103431Y (en) * | 2007-12-08 | 2008-08-20 | 祁正岩 | Air suction and exhaustion coaxial rotating valve actuating mechanism of engine |
| CN103256087A (en) * | 2013-05-29 | 2013-08-21 | 长城汽车股份有限公司 | Gas distributing shaft motor gas distributing system and motor with distribution shaft motor gas distributing system and automobile with distribution shaft motor gas distributing system |
| CN106382158A (en) * | 2016-12-06 | 2017-02-08 | 苗艇 | Single-air-cylinder multi-piston multi-crankshaft engine |
| CN107269413A (en) * | 2017-06-19 | 2017-10-20 | 董立平 | A kind of opposed double piston engine of cylinder annular array and its application method |
| CN208416639U (en) * | 2018-06-14 | 2019-01-22 | 倪梓欣 | A kind of valve actuating mechanism and engine system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039360C (en) * | 1993-11-09 | 1998-07-29 | 勾永贵 | Roller valve type 4-stroke I.C engine distribution mechanism |
| US6158465A (en) * | 1998-05-12 | 2000-12-12 | Lambert; Steven | Rotary valve assembly for engines and other applications |
| DE20306115U1 (en) * | 2003-04-02 | 2004-02-12 | Renfordt, Hermann | Valve system for IC engine has a single rotating shaft with valve recesses set through the top of the cylinder |
| CN201025086Y (en) * | 2007-04-18 | 2008-02-20 | 吉林农业大学 | Gas supply device for piston engine |
| CN108798818B (en) * | 2018-06-14 | 2023-12-26 | 倪梓欣 | Valve mechanism and engine system |
-
2018
- 2018-06-14 CN CN201810612451.9A patent/CN108798818B/en active Active
-
2019
- 2019-06-12 WO PCT/CN2019/090949 patent/WO2019238070A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191226286A (en) * | 1911-11-16 | 1913-04-03 | Hugo Lentz | Improvements in Rotary Slide Valves for Internal Combustion Engines. |
| GB922073A (en) * | 1958-10-22 | 1963-03-27 | Vilnis Aleksander Budachs | Improvements in and relating to internal combustion engines |
| JPH051550A (en) * | 1991-06-20 | 1993-01-08 | Mitsubishi Heavy Ind Ltd | Four-cycle engine |
| CN2661929Y (en) * | 2003-10-01 | 2004-12-08 | 重庆宗申技术开发研究有限公司 | Rotating type valve mechanism of four-stroke internal combustion engine |
| CN201103431Y (en) * | 2007-12-08 | 2008-08-20 | 祁正岩 | Air suction and exhaustion coaxial rotating valve actuating mechanism of engine |
| CN103256087A (en) * | 2013-05-29 | 2013-08-21 | 长城汽车股份有限公司 | Gas distributing shaft motor gas distributing system and motor with distribution shaft motor gas distributing system and automobile with distribution shaft motor gas distributing system |
| CN106382158A (en) * | 2016-12-06 | 2017-02-08 | 苗艇 | Single-air-cylinder multi-piston multi-crankshaft engine |
| CN107269413A (en) * | 2017-06-19 | 2017-10-20 | 董立平 | A kind of opposed double piston engine of cylinder annular array and its application method |
| CN208416639U (en) * | 2018-06-14 | 2019-01-22 | 倪梓欣 | A kind of valve actuating mechanism and engine system |
Non-Patent Citations (1)
| Title |
|---|
| 液压配气技术对提高内燃机动力性能的研究;方戟;柴油机设计与制造(03);第16-19页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019238070A1 (en) | 2019-12-19 |
| CN108798818A (en) | 2018-11-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7100555B2 (en) | Valve timing controller | |
| CN100422514C (en) | Pneumatically actuated valve for internal combustion engines | |
| CN108798818B (en) | Valve mechanism and engine system | |
| CN109854322B (en) | Central slide valve structure | |
| US6390048B1 (en) | Valve apparatus for internal combustion engine | |
| CN208416639U (en) | A kind of valve actuating mechanism and engine system | |
| CN101446214B (en) | Continuously adjustable mechanical hydraulic valve lift device | |
| US2827884A (en) | Timed actuator mechanism | |
| CN112127962A (en) | Valve-spring-free valve actuating mechanism | |
| US8499729B2 (en) | Super charged engine | |
| CN100523461C (en) | Load responding engine | |
| US7823546B2 (en) | Super charged engine | |
| CN210460782U (en) | Energy-saving type middle-mounted engine oil control valve | |
| CN109798180A (en) | A kind of rotary engine | |
| CN112096477B (en) | Mechanism for controlling opening and closing of valve, variable valve apparatus and method | |
| CN210460781U (en) | Control valve and cam phase modulator oil circuit system | |
| CN208564971U (en) | Compressor with rolling rotor of the open-type twin-tub with second vapor injection | |
| CN103939202B (en) | A kind of reciprocating rotary piston-mode motor | |
| CN212563363U (en) | Sealing structure and valve actuating mechanism | |
| CN107131022B (en) | Variable valve timing device | |
| CN104863707A (en) | Internal combustion engine with double-crank mechanism | |
| CN2225540Y (en) | Eccentric wheel (Cam) hydraulic valve mechanism | |
| CN108386361A (en) | Compressor with rolling rotor of the open-type twin-tub with second vapor injection | |
| CN113446083B (en) | Engine and vehicle with same | |
| CN2581698Y (en) | Hydraulic distributing device for engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |