CN209539440U - Large-diameter pre-combustion chamber of gas internal combustion engine - Google Patents
Large-diameter pre-combustion chamber of gas internal combustion engine Download PDFInfo
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- CN209539440U CN209539440U CN201921155368.XU CN201921155368U CN209539440U CN 209539440 U CN209539440 U CN 209539440U CN 201921155368 U CN201921155368 U CN 201921155368U CN 209539440 U CN209539440 U CN 209539440U
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- China
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- gas
- spool
- hole
- plugging plate
- deflation assembly
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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
Abstract
The utility model discloses large-diameter pre-combustion chamber of gas internal combustion engine, including spark plug boot, with the precombustion chamber being connected to inside spark plug boot, inlet channel is equipped in the side wall of the spark plug boot, interface channel is equipped in precombustion chamber, and interface channel is connected to inlet channel, check valve assembly is equipped in the inlet channel, the check valve assembly includes and the matched valve body of inlet channel, the both ends of the valve body are respectively equipped with the air inlet and air outlet being connected to inside, gas deflation assembly and spool are equipped in valve body, the gas deflation assembly is connected to gas outlet, spool can seal air inlet, through-hole is equipped in the spool, plugging plate is equipped in through-hole, the spool can be mobile towards gas deflation assembly direction, and gas deflation assembly is inserted into the through-hole of spool, plugging plate is opened.The utility model enters to the indoor combustion gas of pre-burning convenient for control, and can be with the indoor operating conditions gas intake of pre-burning.
Description
Technical field
The utility model relates to technical field of internal combustion engines, and in particular to large-diameter pre-combustion chamber of gas internal combustion engine.
Background technique
Internal combustion engine is a kind of dynamic power machine, it is by making fuel in machine internal-combustion, and the thermal energy released is straight
Switch through the Thermal Motor for being changed to power.Sensu lato internal combustion engine not only includes reciprocating piston internal combustion engine, rotary-piston type hair
Motivation and free piston engine also include gas turbine, the jet engine etc. of rotary vane type, but usually said
Internal combustion engine refers to internal-combustion piston engine.Internal-combustion piston engine is the most universal with reciprocating-piston.Internal-combustion piston engine by fuel and
Air mixing, in its combustor inner cylinder, the thermal energy released makes the combustion gas that high temperature and pressure is generated in cylinder.Combustion gas expands against work
Work done is filled in, then is exported mechanical work by crank link mechanism or other mechanisms, driving follower work.It common are diesel oil
Machine and gasoline engine are energy in being changed by acting by that can be converted into mechanical energy for interior.The combustion method of gas internal-combustion engine
Mainly there are common spark plugs igniting, precombustion plug ignition, precombustion-chamber ignition, diesel ignition (igniting) etc. at present.For
Cylinder bore is greater than the gas internal-combustion engine of 250mm, and since its main chamber structure size is bigger than normal, flame travel is partially long, and
The flame propagation velocity of fuel gas is slower, and it is poor to be frequently present of burning tissues, leads to that incomplete combustion, row's temperature be higher, discharge
Situations such as poor.In the case, precombustion-chamber ignition mode becomes the preferred sparking mode of large-diameter gas internal-combustion engine.
Currently, the combustion method of large-diameter gas internal-combustion engine uses precombustion-chamber ignition more and more, and precombustion chamber
Air inlet control also there are many mode, including mechanical cam control, solenoid valve control etc..Mechanical cam drives valve control: knot
Structure is complicated, and control is extensive, can not accurately be controlled with engine conditions.Solenoid valve control: accurate control can be realized by ECU
System, but structure and control system are complicated, solenoid valve poor reliability.
Utility model content
Technical problem to be solved in the utility model is to overcome deficiency in the prior art, and it is an object of the present invention to provide large-diameter
Pre-combustion chamber of gas internal combustion engine enters to the indoor combustion gas of pre-burning convenient for control, and can be with the indoor operating conditions of pre-burning
Gas intake.
The utility model is achieved through the following technical solutions:
Large-diameter pre-combustion chamber of gas internal combustion engine, including spark plug boot, with the precombustion chamber that is connected to inside spark plug boot,
It is equipped with inlet channel in the side wall of the spark plug boot, interface channel is equipped in precombustion chamber, and interface channel and air inlet are logical
Road connection, the inlet channel is interior to be equipped with check valve assembly, and the check valve assembly includes and the matched valve body of inlet channel, institute
The both ends for stating valve body are respectively equipped with the air inlet and air outlet being connected to inside, are equipped with gas deflation assembly and spool, institute in valve body
It states gas deflation assembly to be connected to gas outlet, spool can seal air inlet, and through-hole is equipped in the spool, is equipped with and blocks in through-hole
Plate, the spool can be mobile towards gas deflation assembly direction, and gas deflation assembly is inserted into the through-hole of spool, will be blocked
Plate is opened.
Inlet channel in this practical new spark plug boot side wall is connected with extraneous high-pressure gas, so that extraneous high pressure fuel
It is able to enter by air intake duct to precombustion chamber, when extraneous high-pressure gas enters in the air inlet of valve body, high-pressure gas
It pushes check valve assembly mobile progressively towards gas deflation assembly direction, forces gas deflation assembly to stretch in through-hole, and push closure
Plate is opened, so that high-pressure gas can be expelled to gas outlet by gas deflation assembly, final combustion gas is entered in precombustion chamber, complete
The supply of pairs of precombustion chamber combustion gas；It burns when with pre-burning indoor fuel gas, pre-burning room pressure is gradually increased, the indoor gas of pre-burning
Pressure is back to gas deflation assembly, finally generates active force to spool, forces spool mobile away from gas deflation assembly direction, works as pre-burning
When indoor pressure is greater than the pressure of extraneous high-pressure gas, spool is separated with gas deflation assembly, and plugging plate is re-closing off, so that outside
Boundary's high-pressure gas cannot be introduced into precombustion chamber, guarantees in the case where having the burning of combustion gas abundance in precombustion chamber, reduces the wave of combustion gas
Take, when the indoor pressure of pre-burning is less than extraneous combustion gas air pressure, gas deflation assembly is connected to spool again, continues as precombustion chamber
Combustion gas is provided, pre-burning indoor fuel gas is precisely controlled to realize.
Further, two and the matched accommodating chamber of plugging plate are additionally provided in the spool, and accommodating chamber and through-hole connect
Logical, the plugging plate is located in accommodating chamber, and plugging plate can be mobile towards through-hole direction in accommodating chamber.The accommodating chamber
It is inside additionally provided with the second elastic component, the second elastic component is connect with plugging plate.
The accommodating chamber of setting enables plugging plate to have certain cavity to be moved in accommodating chamber for placing plugging plate
It is dynamic, it realizes that is, when two plugging plates are drawn close, two plugging plates close through-hole to the on and off of through-hole, is sealed when two
When closure plate is retracted in accommodating chamber, the opening to through-hole is realized, and can guarantee plugging plate using the second elastic component of setting
Under the action of not by external force, two plugging plates can be tightly close together, and guarantee that plugging plate can effectively carry out through-hole
It blocks, in order to improve the air-tightness of plugging plate, can be arranged on that inner wall of the through hole and match sealing ring with plugging plate, improve plugging plate
To the plugging effect of through-hole.
Further, the plugging plate is towards being equipped with arc slot on the panel in gas deflation assembly direction, and when two closure
When plate is drawn close, the arc slot on two plugging plates can make up the blind hole of conical structure.The gas deflation assembly include exhaust pipe and with
The matched conus portion of blind hole, exhaust pipe are connected to gas outlet, cavity are equipped in the conus portion, and cavity and exhaust pipe connect
It is logical, it is equipped with several gas vents on the conus portion and exhaust pipe, is connected to gas vent inside cavity and exhaust pipe.
Arc slot due to being provided with arc slot on plugging plate, and when two plugging plates are close together, on two plugging plates
The blind hole of conical structure is formed, so that conus portion can take the lead in stretching to through-hole when spool is mobile towards gas deflation assembly direction
Interior, then conus portion is inserted into the blind hole of conical structure, is generated extruding force using inner wall of the conus portion to blind hole, is forced closure
Plate can compress the second elastic component, so that plugging plate can be retracted in accommodating chamber, and ensure conus portion and exhaust pipe energy
Enough pass through blind hole so that the gas vent on conus portion and exhaust pipe is connected to air inlet, combustion gas by gas vent into
Enter to precombustion chamber, completes extraneous high-pressure gas to combustion gas needed for precombustion chamber conveying burning；It is continuous with precombustion chamber combustion gas
Burning, when the indoor pressure of pre-burning is gradually increased, the indoor pressure of pre-burning gradually pushes spool mobile towards gas deflation assembly direction,
So that the quantity for the gas vent being connected to air inlet is gradually reduced, to reduce, to enter to pre-burning by gas vent indoor
Gas quantity again closes two plugging plates until conus portion is all removed out of through-hole, breaks off high-pressure gas and fires to precombustion chamber
The conveying of gas realizes to reduce the unnecessary waste of combustion gas as precombustion chamber operating condition is precisely controlled the gas quantity of entrance.
Further, the width of the plugging plate is greater than the diameter of through-hole.
Guarantee that the plugging plate of setting can effectively block through-hole.
Further, several first elastic components are additionally provided in the valve body, the first elastic component is connect with spool, the first elasticity
When part is in non-compressed state, gas deflation assembly is not inserted into through-hole.
Made using the elastic component of setting when not connect with extraneous high-pressure gas, effect of the spool in the first elastic component
Under, it forces spool to be in an off state with gas deflation assembly, guarantees that inlet channel is in the state closed.
The utility model compared with prior art, has the following advantages and benefits:
The utility model large-diameter pre-combustion chamber of gas internal combustion engine, structure is simple, pushes spool mobile using high-pressure gas, makes
It obtains gas deflation assembly to be connected to spool, so that high-pressure gas is able to enter to precombustion chamber, pass through needed for burning for precombustion chamber
Combustion gas, after being gradually increased with the indoor pressure of pre-burning, the indoor pressure of pre-burning gradually pushes spool towards exhaust group
Part direction is mobile, reduces from gas vent and enters to the indoor gas flow of pre-burning, to realize pre-burning chamber pressure and high compression ignition
Being precisely controlled for atmospheric pressure comparison, reduces the damage of combustion gas.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the structural schematic diagram of the utility model check valve assembly；
Fig. 3 is the structural schematic diagram of the utility model spool end；
Fig. 4 is the structural schematic diagram of the utility model gas deflation assembly；
Fig. 5 is the structural schematic diagram of the utility model plugging plate.
Label and corresponding parts title in attached drawing:
1- spark plug boot, 3- precombustion chamber, 5- interface channel, 6- check valve assembly, 7- inlet channel, the gas outlet 8-, 9-
Gas deflation assembly, the first elastic component of 10-, 11- valve body, 12- spool, 13- plugging plate, 14- air inlet, 15- exhaust pipe, 16- exhaust
Hole, 17- conus portion, 18- accommodating chamber, the second elastic component of 19-, 20- arc slot.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing,
The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this
Utility model is not intended to limit the scope of the present invention.
Embodiment 1
The utility model large-diameter pre-combustion chamber of gas internal combustion engine, including spark plug boot 1, with connect inside spark plug boot 1
The precombustion chamber 3 led to, the side wall of the spark plug boot 1 is interior to be equipped with inlet channel 7, and interface channel 5 is equipped in precombustion chamber 3, and
And interface channel 5 is connected to inlet channel 7, is equipped with check valve assembly 6 in the inlet channel 7, the check valve assembly 6 includes
With the matched valve body 11 of inlet channel 7, the both ends of the valve body 11 are respectively equipped with the air inlet 14 and outlet being connected to inside
Mouth 8, valve body 11 is interior to be equipped with gas deflation assembly 9 and spool 12, and the gas deflation assembly is connected to gas outlet 8, and spool 12 can be to air inlet
Mouth 14 seals, and through-hole is equipped in the spool 12, through-hole is interior equipped with plugging plate 13, and the spool 12 can be towards gas deflation assembly 9
Direction is mobile, and gas deflation assembly 9 is inserted into the through-hole of spool 12, and plugging plate 13 is opened.In the spool 12 also
If there are two with the matched accommodating chamber 18 of plugging plate 13, and accommodating chamber 18 be connected to through-hole, and the plugging plate 13 is positioned at receiving
In chamber 18, and plugging plate 13 can be mobile towards through-hole direction in accommodating chamber 18.Is additionally provided in the accommodating chamber 18
Two elastic components 19, the second elastic component 19 are connect with plugging plate 13.The plugging plate 13 towards on the panel in 9 direction of gas deflation assembly
Equipped with arc slot 20, and when two plugging plates 13 are drawn close, the arc slot 20 on two plugging plates 13 can make up conical structure
Blind hole.The width of the plugging plate 13 is greater than the diameter of through-hole.
Embodiment 2
On the basis of embodiment 1, several first elastic components 10, the first elastic component 10 and valve are additionally provided in the valve body 11
Core 12 connects, and when the first elastic component 10 is in non-compressed state, gas deflation assembly 9 is not inserted into through-hole.The gas deflation assembly 9
Including exhaust pipe 15 and with the matched conus portion 17 of blind hole, exhaust pipe 15 is connected to gas outlet 8, is equipped with chamber in the conus portion 17
Body, and cavity is connected to exhaust pipe 15, and several gas vents 16, cavity and row are equipped on the conus portion 17 and exhaust pipe 15
15 inside of tracheae is connected to gas vent 16.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (7)
1. large-diameter pre-combustion chamber of gas internal combustion engine is connected to pre- including spark plug boot (1), with spark plug boot (1) inside
It fires room (3), is equipped with inlet channel (7) in the side wall of the spark plug boot (1), be equipped with interface channel (5) in precombustion chamber (3),
And interface channel (5) is connected to inlet channel (7), which is characterized in that check valve assembly is equipped in the inlet channel (7)
(6), the check valve assembly (6) includes setting respectively with inlet channel (7) matched valve body (11), the both ends of the valve body (11)
There are the air inlet (14) being connected to inside and gas outlet (8), is equipped with gas deflation assembly (9) and spool (12), institute in valve body (11)
It states gas deflation assembly to be connected to gas outlet (8), spool (12) can seal air inlet (14), be equipped in the spool (12) logical
Hole, through-hole is interior to be equipped with plugging plate (13), and the spool (12) can be mobile towards gas deflation assembly (9) direction, and gas deflation assembly
(9) it is inserted into the through-hole of spool (12), plugging plate (13) is opened.
2. large-diameter pre-combustion chamber of gas internal combustion engine according to claim 1, which is characterized in that also set in the spool (12)
There are two with plugging plate (13) matched accommodating chamber (18), and accommodating chamber (18) is connected to through-hole, plugging plate (13) position
In accommodating chamber (18), and plugging plate (13) can be mobile towards through-hole direction in accommodating chamber (18).
3. large-diameter pre-combustion chamber of gas internal combustion engine according to claim 2, which is characterized in that in the accommodating chamber (18)
It is additionally provided with the second elastic component (19), the second elastic component (19) is connect with plugging plate (13).
4. large-diameter pre-combustion chamber of gas internal combustion engine according to claim 1, which is characterized in that plugging plate (13) direction
It is equipped with arc slot (20) on the panel in gas deflation assembly (9) direction, and when two plugging plates (13) are drawn close, two plugging plates
(13) the arc slot (20) on can make up the blind hole of conical structure.
5. large-diameter pre-combustion chamber of gas internal combustion engine according to claim 1, which is characterized in that the width of the plugging plate (13)
Degree is greater than the diameter of through-hole.
6. large-diameter pre-combustion chamber of gas internal combustion engine according to claim 1, which is characterized in that also set in the valve body (11)
There are several first elastic components (10), the first elastic component (10) is connect with spool (12), and the first elastic component (10) is in uncompressed shape
When state, gas deflation assembly (9) is not inserted into through-hole.
7. large-diameter pre-combustion chamber of gas internal combustion engine according to claim 4, which is characterized in that gas deflation assembly (9) packet
Include exhaust pipe (15) and with the matched conus portion of blind hole (17), exhaust pipe (15) is connected to gas outlet (8), the conus portion (17)
It is interior to be equipped with cavity, and cavity is connected to exhaust pipe (15), is equipped with several rows on the conus portion (17) and exhaust pipe (15)
It is connected to gas vent (16) inside stomata (16), cavity and exhaust pipe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921155368.XU CN209539440U (en) | 2019-07-22 | 2019-07-22 | Large-diameter pre-combustion chamber of gas internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921155368.XU CN209539440U (en) | 2019-07-22 | 2019-07-22 | Large-diameter pre-combustion chamber of gas internal combustion engine |
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| Publication Number | Publication Date |
|---|---|
| CN209539440U true CN209539440U (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921155368.XU Active CN209539440U (en) | 2019-07-22 | 2019-07-22 | Large-diameter pre-combustion chamber of gas internal combustion engine |
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| CN (1) | CN209539440U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324716A (en) * | 2022-10-14 | 2022-11-11 | 潍柴动力股份有限公司 | Pre-combustion chamber |
-
2019
- 2019-07-22 CN CN201921155368.XU patent/CN209539440U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324716A (en) * | 2022-10-14 | 2022-11-11 | 潍柴动力股份有限公司 | Pre-combustion chamber |
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