CN103422970A - Ignition device of gas engine utilizing precombustion chamber - Google Patents
Ignition device of gas engine utilizing precombustion chamber Download PDFInfo
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- CN103422970A CN103422970A CN2013103008138A CN201310300813A CN103422970A CN 103422970 A CN103422970 A CN 103422970A CN 2013103008138 A CN2013103008138 A CN 2013103008138A CN 201310300813 A CN201310300813 A CN 201310300813A CN 103422970 A CN103422970 A CN 103422970A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention discloses an ignition device of a gas engine utilizing a precombustion chamber. The ignition device comprises an ignition plug and a main component, and further comprises a nozzle and an air inlet valve; the main component is provided with an air inlet valve hole channel, the precombustion chamber, a port and an installation portion, wherein the air inlet valve hole channel is provided with the air inlet valve, the port is provided with the nozzle, and the installation portion is used for fixing the ignition device to an air cylinder cover; an electrode of the ignition plug stretches into the precombustion chamber after the ignition plug is installed, and an air outlet of the air inlet valve is communicated with the precombustion chamber, and an air inlet of the air inlet valve is communicated with external gas through a gas inlet hole formed in the side wall of the main component. The air inlet valve is a one-way air inlet valve and used for adding the gas to the precombustion chamber. The port provided with the nozzle is arranged on the wall of the precombustion chamber, the nozzle arranged on the port is used for stretching into an air cylinder of the engine, and therefore the gas, ignored by the ignition plug, in the precombustion chamber is sprayed into the air cylinder of the engine through the nozzle for ignition. The ignition device can resolve the problem of ignition energy of the gas engine, and meanwhile can resolve the problem of concentration of mixed gas.
Description
Technical field
The present invention relates to a kind of ignition mechanism of gas engine, specifically refer to a kind of ignition mechanism that adopts the gas engine of precombustion chamber.
Background technique
The cylinder firing mode of existing gas engine adopts spark plug to light a fire mostly.Be that spark plug is directly installed on cylinder head, the electrode of spark plug stretches into the firing chamber of motor, directly the combustion gas in firing chamber is lighted a fire.In prior art, the ignition mechanism of gas engine as shown in Figure 1, this ignition mechanism comprises spark plug 5, main component 3, main component 3 is arranged on cylinder head 7, and spark plug 5 vertically is inserted on main component 3, and the bottom of spark plug 5 is stretched in the cylinder 8 of motor.
For motor itself, in cylinder, the thin performance of inflammable mixture is good, on the contrary poor performance.But the ignition energy of spark plug is lower, can not light thin mixed gas, need to be in the situation that in-cylinder mixture strength be larger just can light, therefore, current gas engine, for meeting the plug ignition requirement, have to improve the concentration of inflammable mixture in cylinder.Cause producing a series of negative effects such as high such as engine heat load, that output power is restricted, dynamic response is poor, the gas consumption rate is high, emission performance is poor.Therefore, how to improve the spark plug concentration of mixed gas on every side, solve the low problem of plug ignition energy, can guarantee again that in cylinder, mixed gas is thin mixed gas simultaneously, thus reduce engine heat load, promote motor output power, improve dynamic response, reduce gas consumption, improve emission performance and become a great problem that current gas engine faces.
Summary of the invention
The purpose of this invention is to provide a kind of ignition mechanism that adopts the gas engine of precombustion chamber, this ignition mechanism arranges a precombustion chamber, the ignition space of spark plug is confined to one to be separated in the little space of coming with engine chamber, and improve gas concentration at this precombustion chamber, to meet the igniting requirement of spark plug, can allow again the interior maintenance of cylinder of motor use thin inflammable mixture simultaneously, improve operating mode, thereby solve spark plug because of the contradictory problems between ignition energy desired gas concentration and the applicable mixture strength of motor.
This purpose of the present invention is achieved by the following technical solution: a kind of ignition mechanism that adopts the gas engine of precombustion chamber, comprise spark plug, main component, described main component has the spark plug duct that spark plug is installed, it is characterized in that: this ignition mechanism also comprises nozzle and suction valve, described main component has the suction valve duct that is installed into air valve, precombustion chamber is with the port that nozzle is installed and for ignition mechanism being fixed on to the assembly department on cylinder head, described spark plug and suction valve are inserted into respectively in the spark plug duct and suction valve duct on described main component, the electrode that spark plug is installed rear spark plug stretches in described precombustion chamber, the air outlet of suction valve also is connected with described precombustion chamber, the gas inlet hole that the suction port of suction valve is offered by the sidewall of described main component is connected with outside combustion gas, described suction valve is breather cheek valve, is used to described precombustion chamber to increase combustion gas, the port of described installation nozzle is arranged on the precombustion locular wall, is arranged on the nozzle of this port in the cylinder that stretches into motor, combustion gas that spark plug is lighted at precombustion chamber is sprayed into by nozzle in the cylinder of motor and lighted a fire.
Working principle of the present invention is: ignition mechanism is communicated with precombustion chamber by nozzle with the cylinder of motor, and the work of motor is a work cycle by air inlet → compression → igniting expansion workmanship → exhaust:
When intake stroke, descent of piston in cylinder, the outside gaseous-pressure that suction valve of the present invention is communicated with is higher than the in-cylinder pressure in cylinder, ball valve in suction valve is opened, outside combustion gas enters precombustion chamber by suction valve, the residual waste gas that simultaneously this office work circulated is discharged in cylinder by nozzle, until lower dead center, the combustion gas entered due to outside combustion gas accounts for 1% of the total air inflow of engine gas, therefore, combustion gas in precombustion chamber of the present invention enters in cylinder, and to cylinder, the concentration affects of comparatively thin combustion gas is little.
During to compression stroke, engine piston is up, pressure in cylinder is far away higher than the pressure of described outside combustion gas, the combustion gas that cylinder is thin has part and is pressed in precombustion chamber by described nozzle, and with the indoor outside combustion gas mixing entered in the lastrow journey, the jack-up ball valve is closed suction valve simultaneously, outside combustion gas stops entering in precombustion chamber, the work combustion gas of cylinder is pressed in precombustion chamber gradually, indoor combination gas concentration is improved gradually, until the piston arrives top dead center.
During to expansion stroke, the electrode of spark plug discharges in precombustion chamber, because indoor fuel gas concentration is higher, electrode discharge a bit with, and spray in cylinder by nozzle, compressed combustion gas in the whole cylinder that ignites, thin fuel gas buring expands, promote the descent of piston acting with good operating mode, until lower dead center.
While entering exhaust stroke, piston stroking upward, pressure in the outside gaseous-pressure of suction valve of the present invention and cylinder approaches, the threshold state of ball valve in Push And Release, combustion gas a small amount of in cylinder enters precombustion chamber, can play the effect of clearing away waste gas, complete a work cycle, then next new work cycle.
The present invention can adopt following corrective measure, described suction valve adopts following special one-way valve, in order to make ignition mechanism there is the suitable bodily form, the space of suitable installation position: described suction valve has valve body, valve seat, valve pocket and ball valve, the external frame of valve body and valve pocket is cylindrical, valve seat is positioned at the valve body below, the valve pocket support also is set with described valve seat by trepanning, and valve pocket is connected with the bottom of valve body, described valve body has the blast tube be connected with the gas inlet hole, this blast tube one end is positioned on the bottom end face of valve body, there is up big and down small ladder counterbore in described valve seat, comprise superposed large counterbore and the little counterbore that is positioned at bottom, large counterbore is connected with the air outlet of blast tube, the valve seat middle part offers the cross through hole that one and two counterbore all intersects and connects, the bottom of valve seat vertically offers the air outlet hole be connected with little counterbore, air outlet hole is connected with precombustion chamber, described ball valve is positioned at described large counterbore, the size of ball valve is greater than the air outlet of blast tube and the size of little counterbore, be less than the size of large counterbore, the gaseous-pressure of described ball valve in blast tube moves down during higher than the gas pressure in precombustion chamber, combustion gas enters precombustion chamber after blast tube and valve seat, gas pressure in the precombustion chamber shutoff blast tube that moves up during higher than the gaseous-pressure in blast tube, control the conducting of blast tube by ball valve, thereby adjust the concentration of precombustion indoor fuel gas, described nozzle is connected with the bottom of described main component, and is connected with described precombustion chamber.
In the present invention, spark plug duct and the suction valve duct on described main component, offered are all vertically offered, the spark plug duct is connected with precombustion chamber, described main component also offers the inclination duct that two ends are connected with valve opening road and precombustion chamber respectively between valve opening road and precombustion chamber, described spark plug is inserted in described spark plug duct, described suction valve is inserted in described valve opening road, the air outlet hole that the valve seat bottom is offered is connected with the inclination duct, and air outlet hole is connected with described precombustion chamber by the inclination duct.
In the present invention, the top in described valve opening road has the tapped hole section, and the top of valve body has fastening stud, and valve body is inserted in the valve opening road, and the fastening stud of valve body is threaded with the tapped hole section in valve opening road.
In the present invention, the blast tube that described valve body has is comprised of inlet hole and the vertical combustion gas duct arranged of cross setting, wherein, the inlet hole of blast tube is the suction port of described suction valve, described inlet hole is connected with the gas inlet hole of main component, the combustion gas duct is circular duct, and the suction port in combustion gas duct is connected with inlet hole, and air outlet is connected with large counterbore.
In the present invention, described air outlet hole is eccentric through-hole, and the eccentric distance between the center line of air outlet hole and the center line of little counterbore is 0.5～1 millimeter, and eccentric through-hole is subject to the effect rolling of unbalanced force while making ball valve with air motion, sealing surface is played to the honing effect.
In the present invention, the bottom of described valve body is for having externally threaded double-screw bolt, and described valve pocket and double-screw bolt opposite position place offer the screw with internal thread, and valve pocket is connected with valve body screw thread.
In the present invention, the bottom of described main component has the screw be connected with precombustion chamber, and the top of described nozzle is for having externally threaded double-screw bolt, and described nozzle is threaded with the bottom of described main component; The bottom of described nozzle has the spray orifice of several oblique layouts, for being connected with the cylinder of motor
In the present invention, described nozzle and described main body also be provided with up and down seal washer between mating face.
In the present invention, cooling liquid, outside combustion gas and the thin inflammable mixture of cylinder of installation cavity middle part surrounding enter gas storage chamber, make this device remain suitable operating temperature.
In the present invention, the external cylindrical surface of described main body, along circumferentially offering some roads sealer ring recess, all is equipped with a circle cushion rubber in every one O-ring seal groove.
Compared with prior art, the inflammable mixture of ignition mechanism of the present invention is the total mixed gas from mixed gas thin in cylinder and the combustion gas that independently enters, and concentration is higher, volume be about piston when upper dead center volume of cylinder 2%.During engine operation, the rich mixture of spark ignitor ignition mechanism, the burning things which may cause a fire disaster energy is exaggerated, and the mixed gas that the whole cylinder that ignites is thin promotes the piston acting.Reach the igniting of motor and move all in the purpose that can under applicable separately combustion gas concentration, carry out work
The accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail;
Fig. 1 is that in prior art, ignition mechanism is arranged on the use state reference map on cylinder;
Fig. 2 is that ignition mechanism of the present invention is arranged on the use state reference map on cylinder;
Fig. 3 is the integral installation figure of ignition mechanism of the present invention;
Fig. 4 is the parts drawing of spark plug in ignition mechanism of the present invention;
Fig. 5 is the parts drawing of nozzle in ignition mechanism of the present invention;
Fig. 6 is the parts drawing of main body in ignition mechanism of the present invention;
Fig. 7 is the parts drawing of suction valve in ignition mechanism of the present invention;
Fig. 8 is that the A of Fig. 7 is to enlarged view;
Fig. 9 is the parts drawing of valve pocket in ignition mechanism of the present invention;
Figure 10 is the parts drawing of valve seat in ignition mechanism of the present invention;
Figure 11 is the B-B sectional view of Figure 10.
Description of reference numerals
1, installation cavity; 2, nozzle; 21, supporting surface; 22, double-screw bolt; 23, counterbore; 24, passage; 25, spray orifice; 3, main component; 31, precombustion chamber; 32, screw; 33, spark plug duct; 34, suction valve duct; 35, screw thread; 36, tapped hole section; 37, the conical surface; 38, inclination duct; 39, aprons slot; 310, cushion rubber; 311, gas inlet hole; 312, aprons slot; 313, cushion rubber; 314, hole; 4, suction valve; 41, valve pocket; 411, the conical surface; 412, through hole; 413, counterbore; 414, screw; 415, supporting surface; 42, valve seat; 421, large counterbore; 422, conical surface; 423, little counterbore; 424, air outlet hole; 425, cross through hole; 426, bottom supporting face; 427, top-supported face; 43, valve body; 431, hexagon head; 432, aprons slot; 433, fastening stud; 434, valve body bottom supporting face; 435, double-screw bolt; 436, combustion gas duct; 437, inlet hole; 438, bottom chamfer; 44, ball valve; 45 O-ring seals; 5, spark plug; 51, spark cock body; 52, joint; 53, spark plug thread; 54, electrode; 6, seal washer; 7, cylinder head; 8, cylinder; 9, sleeve
Embodiment
The ignition mechanism of a kind of gas engine as shown in Figures 2 to 11, comprise nozzle 2, main component 3, suction valve 4, spark plug 5 and seal washer 6, spark plug 5 upper ends also are set with sleeve 9, play a protective role, central authorities at cylinder of gas engine lid 7 offer an installation cavity 1 for main component 3 is installed, installation cavity 1 middle part surrounding is cooling liquid, supporting surface 21 close contacts of the bottom of installation cavity 1 and nozzle 2, be provided with some roads O-ring seal between the top of installation cavity 1 and main component 3, play seal action, nozzle 2 tops are for having externally threaded double-screw bolt 22, center offers a broad counterbore 23, the spray orifice 25 that bottom has several oblique layouts, counterbore 23 bottoms have passage 24, this passage 24 is connected with the spray orifice 25 of oblique setting, for being communicated with the cylinder of motor.
In the present embodiment, spark plug 5 and suction valve 4 all vertically are inserted on main component 3, spark plug duct 33 and suction valve duct 34 be arranged in parallel, spark plug duct 33 is connected with precombustion chamber 31, the electrode 54 that spark plug 5 is installed rear spark plug 5 is positioned at precombustion chamber 31, main component 3 also offers the inclination duct 38 that two ends are connected with suction valve duct 34 and precombustion chamber 31 respectively between suction valve duct 34 and precombustion chamber 31, spark plug 5 is inserted in spark plug duct 33, suction valve 4 is inserted in suction valve duct 34, the air outlet hole 424 that valve seat 42 bottoms are offered is connected with 38, the sidewall of main component 3 offers gas inlet hole 311, one screw thread 35 is arranged at 33 bottoms, spark plug duct that spark plug 5 is installed, there is a tapped hole section 36 34 tops, suction valve duct that are installed into air valve 4, the conical surface 37 is arranged at bottom, one inclination duct 38 is arranged at the conical surface 37 bottoms, tilt the oblique main component 3 that is opened in duct 38 between precombustion chamber 31 and suction valve duct 34, main component top external cylindrical surface is provided with some roads sealer ring recess 39, the interior circle cushion rubber 310 that all is equipped with of every one O-ring seal groove 39, gas inlet hole 311 is between sealer ring recess 39, the upper end of main component 3 has an aprons slot 312 with seal action, cushion rubber 313 is installed in aprons slot 312, upper end flange two sides of main component 3 respectively have a hole 314, clamping bolt is fixed on main component 3 on cylinder head 7 by two holes 314, thereby this device is fixed on cylinder head 7, nozzle 2 passes through scyewed joint with main component 3, seal washer 6 is arranged between joint, the bottom of main component 3 has the screw 32 be connected with precombustion chamber 31, nozzle 2 is by the screw 32 of double-screw bolt 22 precession main components 3, with the bottom of main component 3, be threaded, nozzle 2 spins after main component 3, the spray orifice 25 of nozzle 2 is connected with the precombustion chamber 31 of main component 3 by passage.For improving the connection sealing energy between nozzle 2 and main component 3, nozzle 2 and main component 3 also be provided with up and down seal washer 6 between mating face.
Described suction valve 4 comprises valve pocket 41, valve seat 42, valve body 43, non-return valve 44 and O-ring seal 45, the external frame of valve body 43 and valve pocket 41 is cylindrical, the conical surface 37 close contacts of the valve pocket 41 bottom conical surfaces 411 bottom the main component mounting hole, offer the counterbore 413 and the through hole 412 that connect along medial axis, wherein, counterbore 413 is positioned at top, through hole 412 is positioned at bottom, counterbore 413 is arranged at top, the counterbore 413 on top is as the trepanning of valve pocket 41, suit valve seat 42, the through hole 412 of bottom is the air outlet of suction valve 4, there is screw thread 414 in the aperture of counterbore, the counterbore bottom has supporting surface 415, valve seat 42 is positioned at valve body 43 belows, valve pocket 41 is by the trepanning support and be set with valve seat 42, and valve pocket 41 is connected with the bottom of valve body 43, valve seat 42 also has bottom supporting face 426 and top-supported face 427, top-supported face 427 is for supporting valve body 43, bottom supporting face 426 supports are on valve pocket 41, valve pocket 41 with the concrete linkage structure of valve body 43 is: the bottom of valve body 43 is for having externally threaded double-screw bolt 435, valve pocket 41 offers the screw 414 with internal thread with double-screw bolt 435 opposite position places, valve pocket 41 is threaded with valve body 43, 34De top, suction valve duct has tapped hole section 36, the top of valve body 43 has fastening stud 433, valve body 43 is inserted in suction valve duct 34, the fastening stud 433 of valve body 43 is threaded with the tapped hole section 36 in suction valve duct 34, valve body has the combustion gas duct along medial axis, this combustion gas duct one port is positioned at an end of valve body, this end claims the valve body nose end, the other end in described combustion gas duct is blind hole, be positioned at the middle part of valve body, by inlet hole and described gas inlet hole, joined, valve body 43 has the blast tube be connected with gas inlet hole 311, one end of this blast tube is positioned on the bottom end face of valve body, this blast tube is comprised of inlet hole 437 and the vertical combustion gas duct 436 arranged of cross setting, wherein, the inlet hole 437 of blast tube is the suction port of suction valve 4, inlet hole 437 is connected with the gas inlet hole 311 of main component 3, combustion gas duct 436 is circular duct, the suction port in combustion gas duct 436 is connected with inlet hole 437, air outlet is connected with the large counterbore 421 of valve seat 42, there is up big and down small concentric ladder counterbore in valve seat 42, this ladder counterbore comprises the large counterbore 421 of a superposed circle and is positioned at the little counterbore 423 of a circle of bottom, large counterbore 421 is connected with the circular air outlet of blast tube, the circular air outlet of blast tube is the circular air outlet in combustion gas duct 436, valve seat 42 middle parts offer the cross through hole 425 that one and two counterbore all intersects and connects, the bottom of valve seat 42 vertically offers the air outlet hole 424 be connected with little counterbore 423, the air outlet hole 424 that valve seat 42 bottoms are offered is connected with inclination duct 38, thereby air outlet hole 424 is connected with the precombustion chamber 31 of main component 3 by inclination duct 38, non-return valve 44 is positioned at large counterbore 421, the size of non-return valve 44 is greater than the air outlet of blast tube and the size of little counterbore 423, be less than the size of large counterbore 421, a hexagon head 431 is in addition arranged at the top of valve body 43, one aprons slot 432, one binding thread 433, supporting surface 434 is arranged at bottom, the bottom of valve body 43 is for having externally threaded double-screw bolt 435, valve pocket 41 offers the screw 414 with internal thread with double-screw bolt 435 opposite position places, valve pocket 41 is threaded with valve body 43, chamfering 438 is arranged at the bottom in the valve body 43 vertical combustion gas ducts 436 that arrange, valve seat 42 is contained in valve pocket 41, the bottom supporting face 426 of valve seat 42 bottoms and supporting surface 415 close contacts of valve pocket counterbore, the bottom supporting face 434 of valve body 43 and top-supported face 427 close contacts of valve seat 42.The gaseous-pressure of non-return valve 44 in blast tube moves down during higher than the gas pressure in precombustion chamber 31, combustion gas enters precombustion chamber 31 after blast tube and valve seat 42, the gas pressure of non-return valve 44 in the precombustion chamber 31 shutoff blast tube that moves up during higher than the gaseous-pressure in blast tube, control the conducting of blast tube by non-return valve 44, thereby adjust the concentration of precombustion chamber 31 interior combustion gas, to improve the spark plug concentration of mixed gas on every side, solve the low problem of plug ignition energy, can guarantee again that in cylinder, mixed gas is thin mixed gas simultaneously, guarantee the good performance of motor.
In the present embodiment, air outlet hole 424, counterbore 413, through hole 412 connect from top to bottom, through hole 412 connects with inclination duct 38, air outlet hole 424 is by being connected with precombustion chamber 31 with counterbore 413, through hole 412, inclination duct 38, and the through hole 412 of valve pocket 41 bottoms is the air outlet of suction valve 4.
Described spark plug 5 has spark cock body 51, joint 52, spark plug thread 53 and electrode 54, joint 52 connects with external power supply, spark plug thread 53 spark plug 5 that is threaded with the screw thread 35 of main component 3 is fixed in spark plug duct 33, spark plug 5 fixedly rear electrode 54 is positioned at precombustion chamber 31, for lighting the mixed gas in precombustion chamber 31.
In the present embodiment, during engine operation, according to air inlet, compression, expansion, exhaust process, loop.
When intake stroke, descent of piston, gaseous-pressure in blast tube is higher than the in-cylinder pressure in cylinder, non-return valve is touched with the conical surface 422 of little counterbore 423 after falling for 44 times, pure combustion gas enters from gas inlet hole 311, through inlet hole 437, combustion gas duct 436, large counterbore 421, little counterbore 423, cross through hole 425, eccentric air outlet hole 424, and enter precombustion chamber 31 behind the oblique inclination duct 38 of offering, on precombustion chamber 31, the residual waste gas of a work cycle is with the purging of descent of piston and pure combustion gas, through counterbore 23, passage 24, spray orifice 25 is discharged to cylinder.
When compression stroke, piston stroking upward, pressure in cylinder is far away higher than the gaseous-pressure in blast tube, combustion gas stops entering, the thin inflammable mixture of cylinder is from the spray orifice 25 of oblique layout, enter precombustion chamber 31 through passage 24 and change with pure combustion gas mixing the inflammable mixture that concentration is higher into, non-return valve 44 is by jack-up and combustion gas duct 436 bottom chamfer 438 close contacts, by the 436De air outlet shutoff of combustion gas duct, thereby higher inflammable mixture is isolated with the pure combustion gas in combustion gas duct 436 by the concentration in precombustion chamber 31.
When expansion stroke, electrode 53 electric discharges of spark plug, light the higher inflammable mixture of concentration in precombustion chamber 31, the flame bamboo telegraph, through counterbore 23, passage 24, spray orifice 25, the thin inflammable mixture in the whole cylinder that ignites, promote the descent of piston acting.
In exhaust stroke, gaseous-pressure and the pressure in cylinder in blast tube approach, the threshold state of non-return valve 44 in Push And Release, the combustion gas entered from gas inlet hole 311 accounts for 1% of the total air inflow of engine gas, wherein a small amount of combustion gas enters precombustion chamber 31 in exhaust stroke, play the effect of clearing away waste gas, and little on the impact of motor fortune property Economy.
The cooling liquid of installation cavity 1 middle part surrounding, pure combustion gas and the thin inflammable mixture of cylinder enter precombustion chamber 31, make this device remain suitable operating temperature.
The above embodiment of the present invention is not limiting the scope of the present invention; embodiments of the present invention are not limited to this; according to foregoing of the present invention; ordinary skill knowledge and customary means according to related domain; do not breaking away under the above-mentioned basic fundamental thought of the present invention prerequisite; the modification of other various ways that said structure of the present invention is made, replacement or change, within all should dropping on protection scope of the present invention.
Claims (10)
1. an ignition mechanism that adopts the gas engine of precombustion chamber, comprise spark plug (5), main component (3), described main component (3) has the spark plug duct (33) of installation spark plug (5), it is characterized in that: this ignition mechanism also comprises nozzle (2) and suction valve (4), described main component (3) has the suction valve duct (34) that is installed into air valve (4), precombustion chamber (31) and the port of nozzle (2) is installed and for ignition mechanism being fixed on to the assembly department on cylinder head (7), described spark plug (5) and suction valve (4) are inserted into respectively in the spark plug duct (33) and suction valve duct (34) on described main component (3), the electrode (54) that spark plug (5) is installed rear spark plug (5) stretches in described precombustion chamber (31), the air outlet of suction valve (4) also is connected with described precombustion chamber (31), the gas inlet hole (311) that the suction port of suction valve (4) is offered by the sidewall of described main component (31) is connected with outside combustion gas, described suction valve (4) is breather cheek valve, is used to described precombustion chamber (31) to increase combustion gas, the port of described installation nozzle is arranged on precombustion chamber (31) wall, be arranged on the nozzle (2) of this port in the cylinder (8) that stretches into motor, combustion gas that spark plug (5) is lighted at precombustion chamber (31) sprayed into by nozzle (2) in the cylinder (8) of motor and lighted a fire.
2. the ignition mechanism of the gas engine of employing precombustion chamber according to claim 1, it is characterized in that: described suction valve (4) has valve body (43), valve seat (42), valve pocket (41) and ball valve (44), the external frame of valve body (43) and valve pocket (41) is cylindrical, valve seat (42) is positioned at valve body (43) below, valve pocket (41) support also is set with described valve seat (42) by trepanning, and valve pocket (41) is connected with the bottom of valve body (43), described valve body (43) has the blast tube be connected with gas inlet hole (311), this blast tube one end is positioned on the bottom end face of valve body, there is up big and down small ladder counterbore in described valve seat (42), comprise superposed large counterbore (421) and be positioned at the little counterbore (423) of bottom, large counterbore (421) is connected with the air outlet of blast tube, valve seat (42) middle part offers the cross through hole (425) that one and two counterbore all intersects and connects, the bottom of valve seat (42) vertically offers the air outlet hole (424) be connected with little counterbore (423), air outlet hole (424) is connected with precombustion chamber (31), described ball valve (44) is positioned at described large counterbore (421), the size of ball valve (44) is greater than the air outlet of blast tube and the size of little counterbore (423), be less than the size of large counterbore (421), the gaseous-pressure of described ball valve (44) in blast tube moves down during higher than the gas pressure in precombustion chamber (31), combustion gas enters precombustion chamber (31) after blast tube and valve seat (42), gas pressure in precombustion chamber (31) the shutoff blast tube that moves up during higher than the gaseous-pressure in blast tube, control the conducting of blast tube by ball valve (44), thereby adjust the concentration of the interior combustion gas of precombustion chamber (31), described nozzle (2) is connected with the bottom of described main component (3), and is connected with described precombustion chamber (31).
3. the ignition mechanism of the gas engine of employing precombustion chamber according to claim 2, it is characterized in that: spark plug duct (33) and suction valve duct (34) on described main component (3), offered are all vertically offered, spark plug duct (33) is connected with precombustion chamber (31), described main component (3) also offers the inclination duct (38) that two ends are connected with valve opening road (34) and precombustion chamber (31) respectively between valve opening road (34) and precombustion chamber (31), described spark plug (5) is inserted in described spark plug duct (33), described suction valve (4) is inserted in described valve opening road (34), the air outlet hole (424) that valve seat (42) bottom is offered is connected with inclination duct (38), air outlet hole (424) is connected with described precombustion chamber (31) by inclination duct (38).
4. the ignition mechanism of the gas engine of employing precombustion chamber according to claim 3, it is characterized in that: the top in described valve opening road (34) has tapped hole section (36), the top of valve body (43) has fastening stud (433), valve body (43) is inserted in valve opening road (34), and the fastening stud (433) of valve body (43) is threaded with the tapped hole section (36) of valve opening road (34).
5. the ignition mechanism of the gas engine of employing precombustion chamber according to claim 4, it is characterized in that: the blast tube that described valve body (43) has is comprised of inlet hole (437) and the vertical combustion gas duct (436) arranged of cross setting, wherein, the inlet hole of blast tube (437) is the suction port of described suction valve (4), described inlet hole (437) is connected with the gas inlet hole (311) of main component (3), combustion gas duct (436) is circular duct, the suction port in combustion gas duct (436) is connected with inlet hole (437), air outlet is connected with large counterbore (421).
6. the ignition mechanism of the gas engine of employing precombustion chamber according to claim 5, it is characterized in that: described air outlet hole (424) is eccentric through-hole, eccentric distance between the center line of the center line of air outlet hole (424) and little counterbore (423) is 0.5～1 millimeter, eccentric through-hole is subject to the effect rolling of unbalanced force while making ball valve (44) with air motion, sealing surface is played to the honing effect.
7. according to the ignition mechanism of the gas engine of the described employing precombustion chamber of claim 1 to 6 any one, it is characterized in that: the bottom of described valve body (43) is for having externally threaded double-screw bolt (435), described valve pocket (41) offers the screw (414) with internal thread with double-screw bolt (435) opposite position place, and valve pocket (41) is threaded with valve body (43).
8. according to the ignition mechanism of the gas engine of the described employing precombustion chamber of claim 1 to 6 any one, it is characterized in that: the bottom of described main component (3) has the screw (32) be connected with precombustion chamber (31), the top of described nozzle (2) is for having externally threaded double-screw bolt (22), and described nozzle (2) is threaded with the bottom of described main component (3); The bottom of described nozzle (2) has the spray orifice (25) of several oblique layouts, for being connected with the cylinder of motor.
9. the ignition mechanism of the gas engine of employing precombustion chamber according to claim 8 is characterized in that: described nozzle (2) and described main component (3) also be provided with up and down seal washer (6) between mating face.
10. according to the ignition mechanism of the gas engine of the described employing precombustion chamber of claim 1 to 6 any one, it is characterized in that: the external cylindrical surface of described main component (3), along circumferentially offering some road sealer ring recess (39), all is equipped with a circle cushion rubber (310) in every one O-ring seal groove (39).
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913936A (en) * | 2015-06-09 | 2015-09-16 | 中国科学院广州能源研究所 | Single inlet/outlet micro-scale constant volume combustion device |
| CN105318047A (en) * | 2015-11-18 | 2016-02-10 | 中国船舶重工集团公司第七一一研究所 | One-way valve, gas engine prechamber and gas engine |
| CN106894934A (en) * | 2017-03-24 | 2017-06-27 | 潍柴动力股份有限公司 | Spark plug and the engine with spark plug |
| CN108023276A (en) * | 2017-08-08 | 2018-05-11 | 应用太空科技有限公司 | A kind of spark plug |
| CN109989822A (en) * | 2019-04-10 | 2019-07-09 | 广西玉柴机器股份有限公司 | Gas engine pre-combustion chamber |
| CN110719994A (en) * | 2017-06-08 | 2020-01-21 | 莱奥林奇有限责任公司 | Fuel injector |
| CN113330208A (en) * | 2019-01-22 | 2021-08-31 | Avl李斯特有限公司 | Cylinder head of internal combustion engine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106016363B (en) * | 2016-05-17 | 2017-03-15 | 中国人民解放军63820部队吸气式高超声速技术研究中心 | A kind of lighter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030196634A1 (en) * | 2002-04-23 | 2003-10-23 | Man B&W Aktiengesellschaft | Self-igniting, mixture-compressing internal combustion engine and method for its operation |
| CN1563681A (en) * | 2004-03-18 | 2005-01-12 | 大连理工大学 | Igniting combustion system of engine preburning chamber |
| CN101008338A (en) * | 2006-01-28 | 2007-08-01 | 田恩泽 | Dual-fuel hot compression engine |
| WO2009109694A2 (en) * | 2008-03-03 | 2009-09-11 | Wärtsilä Finland Oy | Pre-chamber arrangement |
| CN101855427A (en) * | 2007-11-09 | 2010-10-06 | 瓦锡兰芬兰有限公司 | Prechamber arrangement of a combustion engine |
-
2013
- 2013-07-17 CN CN201310300813.8A patent/CN103422970B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030196634A1 (en) * | 2002-04-23 | 2003-10-23 | Man B&W Aktiengesellschaft | Self-igniting, mixture-compressing internal combustion engine and method for its operation |
| CN1563681A (en) * | 2004-03-18 | 2005-01-12 | 大连理工大学 | Igniting combustion system of engine preburning chamber |
| CN101008338A (en) * | 2006-01-28 | 2007-08-01 | 田恩泽 | Dual-fuel hot compression engine |
| CN101855427A (en) * | 2007-11-09 | 2010-10-06 | 瓦锡兰芬兰有限公司 | Prechamber arrangement of a combustion engine |
| WO2009109694A2 (en) * | 2008-03-03 | 2009-09-11 | Wärtsilä Finland Oy | Pre-chamber arrangement |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913936B (en) * | 2015-06-09 | 2018-03-30 | 中国科学院广州能源研究所 | Single inlet and outlet miniature scale CONSTANT VOLUME MODEL COMBUSTION CHAMBER |
| CN104913936A (en) * | 2015-06-09 | 2015-09-16 | 中国科学院广州能源研究所 | Single inlet/outlet micro-scale constant volume combustion device |
| CN105318047A (en) * | 2015-11-18 | 2016-02-10 | 中国船舶重工集团公司第七一一研究所 | One-way valve, gas engine prechamber and gas engine |
| CN106894934A (en) * | 2017-03-24 | 2017-06-27 | 潍柴动力股份有限公司 | Spark plug and the engine with spark plug |
| WO2018171286A1 (en) * | 2017-03-24 | 2018-09-27 | 潍柴动力股份有限公司 | Spark plug and engine having spark plug |
| US11118537B2 (en) | 2017-06-08 | 2021-09-14 | Woodward L'orange Gmbh | Fuel injector |
| CN110719994B (en) * | 2017-06-08 | 2021-12-31 | 莱奥林奇有限责任公司 | Fuel injector |
| CN110719994A (en) * | 2017-06-08 | 2020-01-21 | 莱奥林奇有限责任公司 | Fuel injector |
| CN108023276A (en) * | 2017-08-08 | 2018-05-11 | 应用太空科技有限公司 | A kind of spark plug |
| CN108023276B (en) * | 2017-08-08 | 2020-04-28 | 应用太空科技有限公司 | Spark plug |
| CN113330208A (en) * | 2019-01-22 | 2021-08-31 | Avl李斯特有限公司 | Cylinder head of internal combustion engine |
| CN109989822A (en) * | 2019-04-10 | 2019-07-09 | 广西玉柴机器股份有限公司 | Gas engine pre-combustion chamber |
| CN115263527A (en) * | 2022-07-07 | 2022-11-01 | 广西玉柴机器股份有限公司 | Ignition device with active intake prechamber |
| CN115263527B (en) * | 2022-07-07 | 2023-06-23 | 广西玉柴机器股份有限公司 | Ignition device with active intake prechamber |
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