WO2023051604A1 - Valve à gaz universelle pour l'admission et l'échappement de gaz de moteur - Google Patents

Valve à gaz universelle pour l'admission et l'échappement de gaz de moteur Download PDF

Info

Publication number
WO2023051604A1
WO2023051604A1 PCT/CN2022/122099 CN2022122099W WO2023051604A1 WO 2023051604 A1 WO2023051604 A1 WO 2023051604A1 CN 2022122099 W CN2022122099 W CN 2022122099W WO 2023051604 A1 WO2023051604 A1 WO 2023051604A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
intake
chamber
exhaust
main
Prior art date
Application number
PCT/CN2022/122099
Other languages
English (en)
Chinese (zh)
Inventor
李健
Original Assignee
李健
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 李健 filed Critical 李健
Publication of WO2023051604A1 publication Critical patent/WO2023051604A1/fr

Links

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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/02—Selecting particular materials for valve-members or valve-seats; Valve-members or valve-seats composed of two or more materials
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/10—Connecting springs to valve members
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
    • 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
    • F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
    • F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
    • 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
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • 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

Definitions

  • the invention relates to the technical field of fuel engines, in particular to an engine intake and exhaust general air valve.
  • the fuel engine itself is a device with a complex structure and many accessories. A large number of accessories are mainly concentrated on the cylinder head of the engine.
  • Most four-stroke engines use four valves, two for intake and two for exhaust.
  • the multiple valves of the engine are densely arranged, resulting in narrow and curved intake and exhaust passages, which are very easy to cause carbon deposits; moreover, the back pressure of the piston is very large during intake and exhaust, which affects the internal combustion of the engine and more internal friction; at the same time
  • multiple air valves in traditional engines have resulted in complex assembly process requirements and high manufacturing costs, and the operating failure rate will increase accordingly.
  • the purpose of the present invention is to provide a general air valve for engine intake and exhaust with ingenious structural design, which only adopts one main air valve and one auxiliary air valve, which reduces the manufacturing cost of the cylinder head and increases the working efficiency and stability.
  • the inlet and exhaust ports have a large diameter, and it is not easy to produce carbides to cause blockage of the air passage.
  • the high temperature generated by the exhaust can be cooled when the main air valve enters the air, which can effectively reduce the temperature of the main air valve and prolong the service life of the air valve.
  • the large-caliber intake and exhaust ports can effectively inhale and exhaust air, reduce the resistance of the piston to move up and down, reduce internal friction, and are more energy-saving and environmentally friendly.
  • a general air valve for intake and exhaust of an engine comprising a cylinder head installed on the top of the cylinder block of the engine, a valve chamber in a three-way structure is opened inside the cylinder head, and one side of the valve chamber is formed to be connected to the air inlet
  • the other side of the valve chamber forms an exhaust chamber that communicates with the air outlet
  • the bottom of the valve chamber forms a main intake and exhaust port that communicates with the cylinder body
  • the cylinder head is internally set
  • the main air valve assembly vertically penetrates into the middle of the valve chamber, its top member is against the external rocker arm drive mechanism, and its bottom member It forms an opening and closing cooperation relationship with the main intake and exhaust ports, so that the main air valve assembly is driven by the rocker arm drive mechanism to realize the communication or isolation between the valve cavity and the cylinder body;
  • the auxiliary air valve assembly extends horizontally into the intake chamber and exhaust In the middle of the
  • the top of the cylinder head is provided with a first spring chamber, and the bottom surface of the first spring chamber is provided with a main valve stem passage extending to the middle of the valve chamber;
  • the main air valve assembly includes a main valve stem, and the main valve The upper part of the stem is fitted with the main air valve spring and the matching first gland, and the lower part of the main valve stem forms a trumpet-shaped sealing valve disc;
  • the main valve stem runs through the first spring chamber, the main valve stem passage and the valve cavity, the main air valve spring is embedded in the first spring chamber, its upper end is in contact with the first gland, and its lower end is in contact with the bottom surface of the first spring chamber;
  • the top of the main valve stem is driven by the rocker arm
  • the mechanism contacts, and the sealing disc of the main valve stem cooperates with the opening and closing of the main intake and exhaust ports.
  • the inner wall of the channel of the main valve rod is provided with a wear-resistant sleeve.
  • a main air valve sealing seat is provided at the main air intake and exhaust port, and the main air valve sealing seat can closely abut and fit with the sealing valve disc.
  • the side wall of the cylinder head is provided with an auxiliary air valve mounting plate
  • the auxiliary air valve mounting plate is provided with a second spring chamber
  • the bottom surface of the second spring chamber is provided with an air intake chamber and an exhaust chamber.
  • the auxiliary valve assembly includes an auxiliary valve stem, the outer side of the auxiliary valve stem is set with an auxiliary air valve spring and a second gland matching it, and the inner side of the auxiliary valve stem is set with an inlet
  • the air valve plate and the exhaust valve plate; the auxiliary valve stem runs through the second spring chamber, the through hole of the auxiliary valve stem, the air intake chamber and the exhaust chamber as a whole, and the auxiliary air valve spring is embedded in the second spring chamber.
  • the outer end abuts against the inner side of the second gland, and its inner end abuts against the bottom surface of the second spring chamber; the outer side of the second gland abuts against the cam driving mechanism; the intake valve plate and the exhaust valve plate are in the auxiliary When the valve stem moves, it is in a linkage relationship.
  • the intake valve is used to control the connection or isolation of the intersection of the intake chamber and the valve cavity, and the exhaust valve is used to control the isolation of the intersection of the exhaust chamber and the valve cavity. or connectivity.
  • an inlet chamber sealing seat is provided at the intersection of the air inlet chamber and the valve cavity, and the air inlet chamber sealing seat can closely abut and cooperate with the inlet valve plate; the exhaust chamber and the valve chamber
  • An exhaust chamber sealing seat is provided at the intersection of the exhaust chamber, and the exhaust chamber sealing seat can closely abut and fit with the exhaust valve plate.
  • the intake valve plate and the exhaust valve plate are made of high-temperature-resistant alloy materials, and their working surfaces are designed as conical surfaces.
  • a buffer spring assembly is set on the auxiliary valve stem, one end of the buffer spring assembly abuts against the buffer spring positioning stopper, and the other end of the buffer spring assembly abuts against one end of the intake valve plate, so The other end of the intake valve plate abuts against the positioning stopper of the intake valve plate, and the positioning stopper of the buffer spring and the positioning stopper of the intake valve plate are fixedly set on the auxiliary valve stem; A small amount of slip occurs within a limited range to ensure good airtightness.
  • the auxiliary air valve mounting plate is sealed and fixed on the side wall of the cylinder head outside the air intake chamber through the bolt assembly arranged around it, and the auxiliary air valve mounting plate is provided with an inlet connected to the air intake chamber.
  • a detachable valve sleeve is arranged between the cylinder head and the main air valve assembly, and the valve sleeve is used as an integral part of the cylinder head for installing the main air valve assembly, and the valve A valve cavity is formed in the lower part of the sleeve, and through holes connected with the air intake chamber and the exhaust chamber are opened on both sides of the lower part of the valve sleeve.
  • only one air valve is set on the cylinder head as the main air valve, which plays the role of sealing, intake and exhaust, and withstands high temperature and high pressure at the same time.
  • the conversion of intake and exhaust is completed by the intake and exhaust valves outside the main air valve.
  • the intake and exhaust valve plates do not need to bear the high pressure in the cylinder, and the sealing will not be as strict as the intake and exhaust of the existing engine.
  • the manufacturing and assembly process requirements of the air valve are relatively lower. More reliable and energy efficient.
  • the present invention only one air valve is set on the cylinder head as the main air valve, so there is a large space for increasing the air intake and exhaust area of the main air valve, and the air intake and exhaust passages are short and direct, and the air intake and exhaust volume is large , and simple structure, its concept design is reasonable, compared with the previous products, the product structure is optimized, the product is more stable and reliable, and the number of parts is less.
  • the product of the present invention has the advantages of low cost, simple structure and assembly process , and the technology is suitable for various types of engines, which is conducive to mass production.
  • Fig. 1 is a cross-sectional view of an engine intake and exhaust common air valve according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of the detailed structure at point A in FIG. 1 .
  • Fig. 3 is a cross-sectional view of the common intake and exhaust valve of the engine in Embodiment 1 of the present invention (the cross-section is perpendicular to the cross-section in Fig. 1 ).
  • Fig. 4 is a left side view of the common air valve for intake and exhaust of the engine in Embodiment 1 of the present invention.
  • Fig. 5 is a structural schematic diagram of the main valve cam of the common intake and exhaust valve of the engine in Embodiment 1 of the present invention.
  • Fig. 6 is a structural schematic diagram of the valve plate cam of the common intake and exhaust valve of the engine according to Embodiment 1 of the present invention.
  • Fig. 7 is a schematic diagram of the application structure of the engine intake and exhaust common air valve on the cylinder block according to Embodiment 1 of the present invention.
  • Fig. 8 is a schematic diagram of the first stroke stage (intake stroke) of the intake and exhaust common air valve of the engine in Embodiment 1 of the present invention.
  • Fig. 9 is a schematic diagram of the second stroke stage (compression stroke) of the intake and exhaust common air valve of the engine according to Embodiment 1 of the present invention.
  • Fig. 10 is a schematic diagram of the third stroke stage (working stroke) of the intake and exhaust common air valve of the engine in Embodiment 1 of the present invention.
  • Fig. 11 is a schematic diagram of the fourth stroke stage (exhaust stroke) of the common intake and exhaust valve of the engine in Embodiment 1 of the present invention.
  • Fig. 12 is a cross-sectional view of an engine intake and exhaust common air valve according to Embodiment 2 of the present invention.
  • cylinder head 1 valve chamber 11, air intake chamber 12, exhaust chamber 13, first spring chamber 14, air intake chamber sealing seat 15, exhaust chamber sealing seat 16, main air valve sealing seat 17, main Intake and exhaust ports 18, main valve stem channel 19, main air valve assembly 2, main valve stem 21, main air valve spring 22, first gland 23, sealing valve disc 24, wear-resistant sleeve 25, auxiliary air valve assembly 3.
  • this embodiment provides a general air valve for engine intake and exhaust, including a cylinder head 1 and a valve chamber 11, an air intake chamber 12, an exhaust chamber 13, and a main air valve assembly arranged inside the cylinder head 1 2 and auxiliary air valve assembly 3, cylinder head 1 is installed on the top of cylinder block 10 of engine;
  • the air inlet chamber 13 communicated with the air outlet;
  • the bottom of the valve cavity 11 forms the main intake and exhaust port 18 communicated with the cylinder body 10;
  • the main air valve assembly 2 can move vertically, and the auxiliary air valve assembly 3 can move laterally.
  • the main air valve assembly 2 vertically penetrates into the middle of the valve chamber 11, its top member is against the external rocker arm drive mechanism 4, and its bottom member forms an open-close cooperation relationship with the main intake and exhaust port 18, so that the rocker arm
  • the driving mechanism 4 drives the main air valve assembly 2 to realize the connection or isolation between the valve cavity 11 and the cylinder body 10 .
  • the main air valve assembly 2 includes a main valve stem 21, a main air valve spring 22, a first gland 23, a sealing valve disc 24, and a wear-resistant sleeve 25;
  • the top of the cylinder head 1 is provided with a first spring chamber 14.
  • the bottom surface of the first spring chamber 14 is provided with a main valve stem channel 19 extending to the middle of the valve cavity 11;
  • the upper part of the main valve stem 21 is equipped with a main valve spring 22 and a matching first gland 23, the main valve stem
  • the lower part of 21 forms a trumpet-shaped sealing valve disc 24;
  • the main valve stem 21 runs through the first spring chamber 14, the main valve stem passage 19 and the valve cavity 11 as a whole, and the main air valve spring 22 is embedded in the first spring chamber 14.
  • the upper end is in contact with the first gland 23, and its lower end is in contact with the bottom surface of the first spring chamber 14; the top of the main valve stem 21 is in contact with the rocker arm drive mechanism 4, and the sealing valve disc 24 of the main valve stem 21 is in contact with the main intake and exhaust Mouth 18 opening and closing fit.
  • the inner wall of the main valve stem channel 19 is provided with a wear-resistant sleeve 25, which plays the role of wear resistance, sealing and reducing the upper and lower resistance of the valve stem.
  • the main air intake and exhaust port 18 is provided with a main air valve sealing seat 17 , and the main air valve sealing seat 17 can closely abut and cooperate with the sealing valve disc 24 .
  • the rocker arm drive mechanism 4 includes a main valve cam 41 , a rocker arm 42 , a main valve cam shaft 43 , a main valve cam shaft support seat 44 and a main valve cam transmission gear 45 .
  • the upper end of the main valve rod 21 is connected to the main valve cam 41 through the rocker arm 42.
  • the main valve cam 41 is fixed on the main valve cam shaft 43, and the main valve cam shaft 43 is connected to the main valve cam shaft through a bearing.
  • the main valve cam rotating shaft support seat 44 is fixed on the top of the cylinder head 1, and one end of the main valve cam rotating shaft 43 is fixed with the main valve cam transmission gear 45.
  • the rotating shaft (not shown) on the rocker arm 42 is parallel to the main valve cam rotating shaft 43, and the rotating shaft is connected to the supporting base 44 of the main valve cam rotating shaft through bearings.
  • one side of the main air valve cam 41 has two protruding surfaces: the first raised stroke surface 411, and the other side of the main air valve cam 41 has an arc-shaped first base circular surface 412;
  • the starting stroke surface 411 is farther away from the center of the main air valve cam shaft 43 than the first base circular surface 412, so that the main intake and exhaust ports 18 are opened when the raised stroke surface contacts the rocker arm 42, and the first base circular surface When 412 is in contact with the rocker arm 42, the main intake and exhaust ports 18 are closed; the distance between the connecting position of the middle part of the two first raised travel surfaces 411 and the shaft center of the main air valve cam shaft 43 is slightly greater than the distance between the first base circular surface 412 and the main air valve.
  • the main air valve cam 41 drives the rocker arm 42 to push the main valve rod 21 to move vertically, and the main air valve cam 41 rotates clockwise.
  • the main air valve cam 41 drives the rocker arm 42 to push the main air valve stem 21 to descend in the vertical direction, thereby opening the main intake and exhaust port 18;
  • the main air valve cam When the convex part of 41 rotates on the invalid working surface (the first base circular surface 412 is in contact with the rocker arm 42), as shown in Figures 7 and 8, under the upward elastic force of the main valve spring 22, the main valve stem 21 moves along the The vertical direction rises, so that the sealing valve disc 24 contacts the main air valve seat 17 and closes the main intake and exhaust ports 18 .
  • the spark plug 7 and the fuel injector are arranged on the cylinder head 1 on the side of the main intake and exhaust port 18, which does not occupy the active space of the main air valve assembly 2, while only one main air valve assembly 2 is reserved. , so the main intake and exhaust ports 18 of this embodiment can be set as large-diameter intake and exhaust ports, as shown in FIG. 3 .
  • the main air valve assembly is opened when intake and exhaust are required, but when the exhaust stroke is converted to the intake stroke, the sealing valve disc is not tightly closed with the main air valve sealing seat, which is due to; two first raised stroke surfaces
  • the distance between the lowest point of the 411 connection part and the axis of the main valve cam shaft 43 is slightly greater than the distance between the first base circular surface 412 and the axis of the main valve cam shaft 43.
  • the main intake and exhaust ports 18 remain slightly open.
  • the distance between the sealing valve disc 24 and the main air valve sealing seat 17 changes with the arc of the main air valve cam 41 , and the main intake and exhaust port 18 is completely closed after the air intake is completed.
  • the auxiliary air valve assembly 3 extends horizontally into the middle of the intake chamber 12 and the exhaust chamber 13, its outer member is against the external cam drive mechanism 5, and its inner member forms a linkage opening and closing with the intake chamber 12 and exhaust chamber 13 Cooperate with each other, so that the auxiliary air valve assembly 3 is driven by the cam drive mechanism 5 to realize the following two states: the valve cavity 11 communicates with the intake chamber 12, and is cut off from the exhaust chamber 13; or, the valve cavity 11 is separated from the intake chamber 12, It communicates with the exhaust chamber 13.
  • the auxiliary air valve assembly 3 includes an intake valve plate 31, an exhaust valve plate 32, an auxiliary valve stem 33, an auxiliary air valve spring 34, a buffer spring assembly 35, a second gland 36, and a buffer spring positioning stopper. 37.
  • the bottom surface of the chamber 392 is provided with an auxiliary valve stem through hole 394 aligned with the air intake chamber 12 and the exhaust chamber 13; the auxiliary valve stem 33 is set with an auxiliary valve spring 34 and a second gland 36 matching it, and the auxiliary valve stem
  • the inner side of 33 is set with intake valve plate 31 and exhaust valve plate 32; auxiliary valve stem 33 runs through the second spring chamber 392, auxiliary valve stem through hole 394, intake chamber 12 and exhaust chamber 13 as a whole, and the auxiliary valve spring 34 is embedded in the second spring chamber 392, its
  • the intersection of the intake chamber 12 and the valve cavity 11 is provided with an intake chamber sealing seat 15, which can closely abut and cooperate with the intake valve plate 31; the intersection of the exhaust chamber 13 and the valve cavity 11
  • An exhaust chamber sealing seat 16 is arranged at the position, and the exhaust chamber sealing seat 16 can closely abut and fit with the exhaust valve plate 32 .
  • a buffer spring assembly 35 is set on the auxiliary valve stem 33, one end of the buffer spring assembly 35 abuts against the buffer spring positioning stopper 37, the other end of the buffer spring assembly 35 abuts against one end of the intake valve plate 31, and the intake valve plate 31 The other end of the intake valve plate abuts against the positioning block 38, and the buffer spring positioning block 37 and the intake valve plate positioning block 38 are fixedly sleeved on the auxiliary valve rod 33; A small amount of slip occurs inside to ensure good air tightness.
  • the buffer spring assembly includes a buffer spring and a fixing plate affixed to both ends of the buffer spring.
  • the fixing plate is sheathed on the auxiliary valve rod 33 .
  • the exhaust valve plate 32 is affixed to the front end of the auxiliary valve rod 33, and the exhaust valve plate 32 can be positioned by a positioning stopper.
  • the positioning stopper is designed as a detachable connector, which is convenient for taking out the exhaust valve plate 32 for cleaning or maintenance.
  • the intake valve plate 31 and the exhaust valve plate 32 can be thickened according to the needs.
  • the intake valve plate 31 and the exhaust valve plate 32 are made of high-temperature-resistant alloy materials, and their working surfaces are all designed as conical structures.
  • the insides of the valve plate 31 and the exhaust valve plate 32 are both hollow structures, and the buffer spring assembly 35 makes the intake valve plate 31 play a good role in air tightness and clearance adjustment when the intake valve plate 31 is closed.
  • the auxiliary air valve mounting plate 39 is sealed and fixed on the side wall of the cylinder head 1 outside the air intake chamber 12 through the bolt assembly 395 arranged around it.
  • An air inlet connected to the air intake chamber 12 is opened on the auxiliary air valve mounting plate 39 391, screw mounting holes 393 are arranged around the air inlet 391, so that the air intake pipe can be installed at the air inlet 391 through the screw flange assembly matched with the screw mounting holes 393.
  • the auxiliary air valve mounting plate 39 and the cylinder head 1 are sealed and fixed by a bolt assembly 395 .
  • the cam drive mechanism 5 includes a valve cam 51, a valve cam shaft 52, a valve cam shaft support seat 53, and a valve cam transmission gear 54; the valve cam 51 is fixed on the valve cam shaft 52 Above, the valve cam rotating shaft 52 is connected to the valve cam rotating shaft supporting seat 53 through bearing rotation, the valve cam rotating shaft supporting seat 53 is fixed on the side wall of the cylinder head 1, and one end of the valve cam rotating shaft 52 is fixed with a valve cam driving gear 54.
  • the crankshaft gear 9 is connected to the main crankshaft of the engine, and the crankshaft gear 9 is in drive connection with the main air valve cam transmission gear 45 and the valve disc cam transmission gear 54 .
  • connection relationship between the main valve cam 41 and the valve plate cam 51 is the same as the existing engine, which is driven by the main crankshaft of the engine through the timing belt 8 according to a certain transmission ratio.
  • the plate cams 51 rotate one circle in proportion, which is a complete work for the engine.
  • one side of the valve disc cam 51 has a protruding second protruding stroke surface 511, and the other side has an arc-shaped second base circular surface 512; the second protruding stroke surface 511 is compared to the first The distance between the second base circular surface 512 and the shaft center of the valve cam shaft 52 is small, so that when the valve cam 51 rotates at the effective raised position (that is, the second raised travel surface 511 is in contact with the second gland 36 ), Press the second gland 36 to move to the right, and then drive the auxiliary valve stem 33 to move to the right in the horizontal direction, and the intake valve plate 31 can move to the right under the action of the auxiliary valve stem 33 and make sealing contact with the sealing seat 15 of the intake chamber, thereby Close the intake valve plate 31 and open the exhaust valve plate 32.
  • the auxiliary valve rod 33 After the intake valve plate 31 is closed, the auxiliary valve rod 33 still moves a small distance to the exhaust direction, driving the buffer spring positioning block 37 and the buffer spring assembly to press the intake valve.
  • the sheet 31 is closely matched with the sealing seat 15 of the air intake chamber; when the protrusion of the valve sheet cam 51 rotates in the invalid working surface range (that is, the second base circular surface 512 is in contact with the second gland 36), the auxiliary valve spring 34 Under the action of elastic force, the second gland 36 is pushed to move to the left, and then the auxiliary valve stem 33 is driven to move to the left in the horizontal direction, thereby opening the intake valve plate 31 and closing the exhaust valve plate 32.
  • the four-stroke working principle of the engine intake and exhaust common air valve in this embodiment is as follows:
  • Intake stroke when the main crankshaft of the engine rotates to the suction position, the main valve cam 41 is within the range of the effective working surface (that is, the first raised stroke surface 411 is in contact with the rocker arm 42), and the transmission rocker arm 42 pushes down
  • the main valve stem 21 When the main valve stem 21 is moved, the main intake and exhaust ports 18 are in the open state.
  • the valve disc cam 51 rotates in the invalid working surface range (that is, the first base circular surface 412 is in contact with the rocker arm 42), and the auxiliary valve stem 33 is reset.
  • the tension of the spring 34 drives the auxiliary valve rod 33 to move to the left, so that the exhaust valve plate 32 is closed and the intake valve plate 31 is opened.
  • the intake chamber 12 communicates with the valve cavity 11 and the cylinder body 10.
  • the cylinder body 10 is in the intake state, as shown in Figure 8.
  • Compression stroke when the main crankshaft of the engine rotates to the compression position, the main valve cam 41 rotates to the range of the invalid working surface (that is, the first base circular surface 412 is in contact with the rocker arm 42), and the main valve stem 21 is supported by the main valve spring After the tension of 22 rises, the sealing valve disc 24 coincides with the main air valve sealing seat 17, and the main air intake and exhaust port 18 is in a closed state. At this time, the valve disc cam 51 rotates in the invalid working surface range (that is, the second base circular surface 512 and the contact with the second gland 36 ), the intake chamber 12 communicates with the valve chamber 11 , and the cylinder body 10 and the valve chamber 11 are in a closed state, as shown in FIG. 9 .
  • Exhaust stroke when the main crankshaft of the engine rotates to the exhaust position, the valve cam 51 rotates within the range of the effective raised working surface (that is, the second raised stroke surface 511 is in contact with the second gland 36), and the top pressure
  • the auxiliary valve rod 33 overcomes the elastic force of the return spring 34, and the auxiliary valve rod 33 moves to the right, so that the exhaust valve plate 32 is opened and the intake valve plate 31 is closed.
  • a raised stroke surface 411 is in contact with the rocker arm 42), the transmission rocker arm 42 pushes the main air valve downward, and the main intake and exhaust ports 18 are opened.
  • the cylinder body 10 communicates with the valve cavity 11 and the exhaust chamber 13.
  • the cylinder block 10 is in the exhaust state, and during the exhaust stroke, the exhaust valve plate 32 opens ahead of the main air valve 21, as shown in FIG. 11 .
  • a detachable valve sleeve 6 is provided between the cylinder head 1 and the main air valve assembly 2 of this embodiment, and the valve sleeve 6 is used as the valve sleeve 6 of the cylinder head 1.
  • the components are used to install the main air valve assembly 2, the space under the valve sleeve 6 forms a valve cavity 11, and the two sides of the lower part of the valve sleeve 6 are provided with through holes connected with the intake chamber 12 and the exhaust chamber 13.
  • the top of the valve sleeve 6 has an extension formed by extending outward. There are threaded holes corresponding to the extension and the cylinder head 1.
  • the valve sleeve 6 can be fixed on the cylinder head 1 by tightening the bolts. This design can make the valve The sleeve 6 is directly inserted on the cylinder head 1, and the parts to be removed during maintenance are as convenient as the oil extraction head, which is beneficial to the maintenance and disassembly of heavy-duty engines. The valve sleeve 6 can be removed without disassembling the cylinder head 1 when maintaining the gas valve and main air valve assembly 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

Est divulguée dans la présente invention une valve à gaz universelle pour l'admission et l'échappement de gaz d'un moteur, la valve à gaz universelle comprenant une culasse et une cavité de valve, une chambre d'admission de gaz, une chambre d'échappement de gaz, un ensemble valve à gaz principal et un ensemble valve à gaz auxiliaire qui sont disposés dans la culasse, la culasse étant montée sur la partie supérieure d'un corps de cylindre d'un moteur ; la cavité de valve est d'une structure à trois voies, la chambre d'admission de gaz en communication avec une entrée de gaz est formée au niveau d'un côté de la cavité de valve, et la chambre d'échappement de gaz en communication avec une sortie de gaz est formée au niveau de l'autre côté de la cavité de valve ; un orifice d'admission et d'échappement de gaz principal en communication avec le corps de cylindre est formé dans la partie inférieure de la cavité de valve ; et l'ensemble valve à gaz principal peut se déplacer verticalement, et l'ensemble valve à gaz auxiliaire peut se déplacer horizontalement. Une valve principale et une valve auxiliaire sont utilisées pour l'admission et l'échappement de gaz de chaque cylindre du moteur, de sorte que le coût de fabrication de la culasse est réduit, l'efficacité de fonctionnement est améliorée, un grand nombre de pièces sont économisées, les frottements internes sont réduits, d'autres effets d'économie d'énergie et respectueux de l'environnement sont obtenus, et les avantages d'une structure et d'un assemblage simples, d'une grande facilité de mise en œuvre et d'un démontage et d'une maintenance faciles sont obtenus.
PCT/CN2022/122099 2021-09-29 2022-09-28 Valve à gaz universelle pour l'admission et l'échappement de gaz de moteur WO2023051604A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111145789 2021-09-29
CN202111145789.6 2021-09-29

Publications (1)

Publication Number Publication Date
WO2023051604A1 true WO2023051604A1 (fr) 2023-04-06

Family

ID=85769701

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/122099 WO2023051604A1 (fr) 2021-09-29 2022-09-28 Valve à gaz universelle pour l'admission et l'échappement de gaz de moteur

Country Status (2)

Country Link
CN (1) CN115875101A (fr)
WO (1) WO2023051604A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005147115A (ja) * 2003-11-18 2005-06-09 Aisan Ind Co Ltd バルブタイミング制御装置の異常検出装置
CN103470327A (zh) * 2013-09-17 2013-12-25 汪辉 一种节能发动机及其排气控制方法
CN104179745A (zh) * 2014-08-07 2014-12-03 广东省肇庆方大气动有限公司 气路切换阀及其使用方法
CN110030106A (zh) * 2019-05-18 2019-07-19 崔宝才 四冲程内燃机进排气换气装置
CN110043388A (zh) * 2019-05-18 2019-07-23 崔宝才 内燃机进排气换气装置
CN113027595A (zh) * 2021-04-29 2021-06-25 林永男 具有组合燃烧室的活塞发动机及其工作方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005147115A (ja) * 2003-11-18 2005-06-09 Aisan Ind Co Ltd バルブタイミング制御装置の異常検出装置
CN103470327A (zh) * 2013-09-17 2013-12-25 汪辉 一种节能发动机及其排气控制方法
CN104179745A (zh) * 2014-08-07 2014-12-03 广东省肇庆方大气动有限公司 气路切换阀及其使用方法
CN110030106A (zh) * 2019-05-18 2019-07-19 崔宝才 四冲程内燃机进排气换气装置
CN110043388A (zh) * 2019-05-18 2019-07-23 崔宝才 内燃机进排气换气装置
CN113027595A (zh) * 2021-04-29 2021-06-25 林永男 具有组合燃烧室的活塞发动机及其工作方法

Also Published As

Publication number Publication date
CN115875101A (zh) 2023-03-31

Similar Documents

Publication Publication Date Title
CN102926833B (zh) 机械式杠杆比例调节机构
WO2009146626A1 (fr) Moteur mixte multiénergie à essieu direct
CN2895756Y (zh) 凸轮转子发动机
CN2856429Y (zh) 小型内燃机通用多气门配气机构
CN112127962A (zh) 无气门弹簧配气机构
CN101555826B (zh) 弧形缸转子发动机
WO2023051604A1 (fr) Valve à gaz universelle pour l'admission et l'échappement de gaz de moteur
CN218093178U (zh) 发动机进排气通用气阀
CN108798818B (zh) 一种配气机构及发动机系统
CN102953777B (zh) 进气压力控制式凸轮轴装置
CN102966394B (zh) 发动机气门升程调节的双移动块同步移动式机械系统
CN202578815U (zh) 一种气门弹簧座的连接结构
CN208281046U (zh) 一种阀体组件、活塞轴组件及旋转式内燃机
CN203867645U (zh) 汽油机气门摇臂组件
CN204152573U (zh) 一种新型双缸发动机用配气机构
CN102953779B (zh) 杠杆调节式升程可变系统
CN102966396B (zh) 发动机进排气门升程调节的双气门高度气动控制系统
CN201193543Y (zh) 汽车发动机配气机构
CN105756739A (zh) 电磁液压驱动式配气系统
CN2795448Y (zh) 低噪声气门摇臂组件
JP5358019B2 (ja) 気体供給システムを増設した全蒸気駆動式内燃機関
CN221074398U (zh) 一种摩托车发动机三气门配气机构及配气装置
CN103233794A (zh) 带有凹槽结构的气门调节机构
CN102953780B (zh) 排气压力控制式凸轮轴装置
CN203627029U (zh) 凹轴配气机构

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22874988

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE