CN201593452U - Universal engine with low exhaust emission - Google Patents
Universal engine with low exhaust emission Download PDFInfo
- Publication number
- CN201593452U CN201593452U CN2009202073213U CN200920207321U CN201593452U CN 201593452 U CN201593452 U CN 201593452U CN 2009202073213 U CN2009202073213 U CN 2009202073213U CN 200920207321 U CN200920207321 U CN 200920207321U CN 201593452 U CN201593452 U CN 201593452U
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- rocker arm
- communicated
- arm chamber
- general purpose
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides a universal engine with low exhaust emission, which comprises a universal engine box, a cylinder head and a cylinder head cover, wherein a cavity between the cylinder head and the cylinder head cover is a rocker arm chamber, a sound eliminator is communicated with an air outlet of the cylinder head through an exhaust pipe, the inner cavity of a crank case of the box body is communicated with the rocker arm chamber at the upper end of the cylinder head through an air passageway, the cylinder head cover is provided with an air inlet to lead the rocker arm chamber to be communicated with the outside, the air inlet is provided with a negative pressure-opened one-way valve, the cylinder head cover is further provided with an air outlet, and the air outlet is communicated with the sound eliminator through a positive pressure-opened one-way valve. The universal engine absorbs fresh air into the rocker arm chamber to be stored through the negative pressure generated by the reciprocating motion of a piston of the universal engine in the crank case, and sends the stored fresh air to the sound eliminator through the positive pressure generated by the reciprocating motion of the piston in the crank case, so that HC, CO and NOx in high-temperature exhaust emitted by the engine can be emitted after having adequate chemical reaction with sufficient oxygen, thereby effectively reducing the exhaust emission of the universal engine.
Description
Technical field
The utility model relates to the general purpose engine field, particularly a kind of general purpose engine of low exhaust gas emission.
Background technique
Contain a large amount of NOx, HC, CO and particulate matter in the waste gas of engine emission, pollution to air is extremely serious, the atmospheric pollution that causes for the toxic emission that reduces because of motor, the common employing of present motor is provided with three-way catalyst and carries out reprocessing in the silencing apparatus of discharging waste gas, oxidation HC and CO, reducing NOx is to reduce HC, CO, the NOx content in the exhaust gas discharged; But, the oxygen content of discharging after burning in the tail gas of motor is few, the oxidation of HC, CO, NOx or reduce insufficient, just need be to the additional air of tail gas, increase the content of oxygen in the tail gas, to impel HC, CO, NOx abundant oxidation or the reduction under the three-way catalyst effect.Yet, the method that reduces engine exhaust emission at present all is to adopt negative pressure type secondary air compensating method, promptly at waste pipe secondary air-supplementing valve is set, the negative pressure of utilizing engine exhaust to produce sucks fresh air by secondary air-supplementing valve, replenishes air in outlet pipe.Because the pressure that forms in the outlet pipe during engine exhaust is fluctuation pressure, open at exhaust valve, the gas that piston stroking upward in the cylinder promotes after the burning discharges through outlet pipe, at this moment the air pressure in the outlet pipe pipe is malleation, when exhaust valve closing, form the moment negative pressure in the outlet pipe, sucking fresh air by secondary air-supplementing valve is waste gas oxygenating in the outlet pipe, but, during because of engine exhaust, this fluctuation pressure is very asymmetric, and the malleation in the outlet pipe is much larger than negative pressure, and the endurance of malleation is longer, the endurance of negative pressure is extremely short, causes the magnitude of recruitment of fresh air very small, makes the oxygen deficiency that participates in oxidation reaction, HC in the waste gas, CO can not can't be effectively reduced discharging pollutants of motor by sufficient oxidation.Especially general purpose engine is little because of its discharge capacity, rotating speed is relatively low, exhaust pressure is significantly smaller than the relatively large automobile of discharge capacity, motorcycle engine, during the general purpose engine exhaust valve closing, the moment negative pressure that forms in its outlet pipe also is significantly smaller than automobile, the negative pressure of motorcycle engine, its, negative pressure secondary air compensating amount that can suck was just fewer moment, even adopt high-quality three-way catalyst to reduce toxic emission in conjunction with existing negative pressure type secondary air compensating method, the discharge amount of HC+NOx also has 8～10g/kWh in its waste gas, the discharge amount of CO also has 350～450g/kWh, can't reach the waste gas emission standard that developed country formulates, having a strong impact on general purpose engine is power machinery product sale in the world at all.And three-way catalyst must regularly replace after using certain hour, causes the cost up that reduces toxic emission thus.How reducing the general purpose engine toxic emission effectively, satisfy the waste gas emission standard of high request, is the engine building issue to be resolved for a long time, but fails to find the effective ways that address this problem always.
Summary of the invention
The purpose of this utility model is the deficiency that exists at prior art, a kind of general purpose engine of low exhaust gas emission is provided, it is communicated with the inner chamber of the crankcase rocker arm chamber with the cylinder head upper end by air vent is set, inlet hole and air outlet hole are set on cylinder head cover, at air inlet position the one-way valve that negative pressure is opened is set, the one-way valve that air outlet hole is opened by malleation is communicated with silencing apparatus, the negative pressure that forms in the crankcase during reciprocating motion of the pistons that can enough general purpose engines sucks fresh air in the rocker arm chamber lays in, the malleation that forms in the crankcase during reciprocating motion of the pistons forces the fresh air of deposit to deliver in the silencing apparatus, make the HC in the high-temp waste gas that motor discharges, CO, NOx can be in silencing apparatus carries out giving off behind the sufficient chemical reaction with the oxygen of abundance again, effectively reduces the toxic emission of general purpose engine.
The purpose of this utility model is achieved in that and comprises the general purpose engine casing with cylinder and crankcase, cylinder head is assemblied in the cylinder upper end of casing, cylinder head cover is assemblied in the cylinder head upper end, cavity between cylinder head and the cylinder head cover is a rocker arm chamber, silencing apparatus is communicated with the relief opening of cylinder head by outlet pipe, the crankcase intracavity of described casing is communicated with by the rocker arm chamber of air vent with the cylinder head upper end, cylinder head cover is provided with inlet hole makes the external world communicate with rocker arm chamber, at air inlet position the one-way valve that negative pressure is opened is set, also be provided with an air outlet hole on the cylinder head cover, the one-way valve that air outlet hole is opened by malleation is communicated with silencing apparatus.
Described cylinder head is provided with from rocker arm chamber and is through to first vent that closes the cylinder face, casing is provided with second vent crankcase intracavity is communicated with first vent on the cylinder head, by the air vent that constitutes that linked to each other with second vent by first vent crankcase intracavity is communicated with rocker arm chamber.
Described air vent is external breathing pipe, and breathing pipe one end is connected on the crankcase and communicates with crankcase intracavity, and the other end of breathing pipe is connected on the cylinder head and communicates with rocker arm chamber, and perhaps the other end of breathing pipe is connected on the cylinder head cover and communicates with rocker arm chamber.
Described cylinder head cover is the double layer construction that inner cover and shell constitute, be provided with interlayer space between inner cover and the shell, inlet hole is set on the inner cover is communicated with rocker arm chamber and interlayer space, the one-way valve that negative pressure is opened is located at the chamber that air inlet position is positioned at inner cover, set out pore on the inner cover and extend shell, ventilating hole is set on the shell is communicated with the external world and interlayer space by breathing pipe.
The one-way valve that described negative pressure is opened is the reed-type one-way valve, comprise elastic valve plate and aperture limiting stopper, the fixed end that one end of aperture limiting stopper is pushed down elastic valve plate is fixedlyed connected with the inner cover of cylinder head cover, the other end perk of aperture limiting stopper, and the free end of elastic valve plate blocks inlet hole.
The outlet side of the one-way valve that described malleation is opened is connected with silencing apparatus, and inlet end is connected with air outlet hole on the cylinder head cover by tracheae.
In the described silencing apparatus three-way catalyst is set.
Owing to adopt such scheme, the crankcase intracavity of casing is communicated with by the rocker arm chamber of air vent with the cylinder head upper end, make crankcase intracavity form a tightness space that communicates with rocker arm chamber, and on cylinder head cover, be provided with inlet hole and the one-way valve that negative pressure is opened is installed, on cylinder head cover, set out the one-way valve that pore opens by malleation and be communicated with silencing apparatus.The positive and negative alternative pressure that the steam-cylinder piston motion produces in crankcase in the time of so just general purpose engine can being worked, conduct to the rocker arm chamber from air vent, the negative pressure that this tightness space forms when up by piston motion is opened the one-way valve that negative pressure is opened, outside fresh air is sucked in the rocker arm chamber, the malleation that this tightness space forms when descending by piston motion is opened the one-way valve that malleation is opened, fresh air in the rocker arm chamber is forced to send in the silencing apparatus, and HC, the CO, the NOx that drain in the high-temp waste gas in the silencing apparatus for motor produce the chemical reaction oxygenating.Because the piston motion of general purpose engine produces the malleation of about 10kPa or the negative pressure of pact-10kPa in the tightness space, its powerful negative pressure can suck a large amount of fresh airs and lay in abundance to rocker arm chamber, its powerful positive pressure can force the sufficient fresh air of deposit to deliver in the silencing apparatus, be the HC in the high-temp waste gas, CO, NOx produces chemical reaction sufficient oxygen is provided, make the discharge amount of HC+NOx in the general purpose engine exhaust gas discharged be reduced to 3～5g/kWh, the discharge amount of CO is reduced to 150～250g/kWh, HC in the discharging waste gas, CO, NOx content is reduced greatly, well below adopting existing negative pressure type secondary air compensating, thereby can satisfy the emission regulation demands of various countries' strictness easily in conjunction with the HC+NOx of the reduction engine exhaust emission method of high-quality three-way catalyst and the discharge amount of CO.
The double layer construction that described cylinder head cover adopts inner cover and shell to constitute, be provided with interlayer space between inner cover and the shell, inlet hole is set on the inner cover is communicated with rocker arm chamber and interlayer space, the one-way valve that negative pressure is opened is located at the chamber that air inlet position is positioned at inner cover, set out pore on the inner cover and extend shell, ventilating hole is set on the shell is communicated with the external world and interlayer space by breathing pipe.The inlet hole that can avoid being provided with the one-way valve that negative pressure opens like this is exposed to the external world and causes the one-way valve corrosion to damage.
The one-way valve that described negative pressure is opened is the reed-type one-way valve, comprise elastic valve plate and aperture limiting stopper, when under negative pressure, being inhaled moving opening, because the setting of aperture limiting stopper, can avoid elastic valve plate under powerful suction function, to open transition and cause elastic fatigue, can't close inlet hole tight by return.
This general purpose engine is because the powerful positive/negative pressure that can utilize reciprocating motion of the pistons alternately to produce in crankcase, to lay in a large amount of fresh airs suction rocker arm chambers by negative pressure, because the intracavity space of rocker arm chamber is relatively large, the fresh air abundance of deposit, the sufficient fresh air that can will lay under positive pressure is forced to send in the silencing apparatus, the sufficient oxygen that participates in chemical reaction is provided, a large amount of sufficient oxygen enter in the silencing apparatus and the HC in the high-temp waste gas, CO, NOx carries out sufficient chemical reaction, therefore can not re-use three-way catalyst, also can make the HC in the waste gas, CO obtains abundant oxidation, NOx is fully reduced, greatly reduce pollution from exhaust emission, and reduce the cost of administering pollution from exhaust emission greatly, be manufacturing industry and user's reduction of expenditure.Certainly, also can three-way catalyst be set at silencing apparatus, to accelerate HC, the CO in the waste gas, the chemical reaction of NOx, even the inferior three-way catalyst of the three-way catalyst of Cai Yonging at this moment, also can satisfy high-level reduction exhaust emission needs, equally also can be manufacturing industry and user's reduction of expenditure.
And because the structural feature of this general purpose engine, can also be by the malleation of descent of piston motion generation, with the oil gas mix waste gas of cylinder blowby to the crankcase chamber, be pressed into rocker arm chamber through air vent, pressure enters to be carried out in the silencing apparatus discharging after the secondary combustion again, can prevent that oil gas mix waste gas in the crankcase chamber from returning from the gap between piston ring and the cylinder scurries into combustion chambers burn and causes combustion-chamber deposit, and existing general purpose engine is ubiquitous scurries into the problem that combustion chambers burn causes combustion-chamber deposit because of the oil gas mix waste gas in the crankcase chamber thereby solved.
The utility model apparatus structure is simple, and to promoting environmental protection, reducing manufacturing industry cost of production and customer using cost all has active operation significance.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that cylinder head cover of the present utility model is installed the one-way valve of connection negative pressure unlatching and the schematic representation of the one-way valve that malleation is opened.
In the accompanying drawing, 1 is crankcase, and 2 is second vent, and 3 is first vent, 4 is cylinder head, and 5 is cylinder head cover, and 5a is an inner cover, and 5b is a shell, 6 is rocker arm chamber, 7 one-way valves for the negative pressure unlatching, and 7a is an elastic valve plate, 7b is the aperture limiting stopper, 8 is silencing apparatus, and 9 is three-way catalyst, 10 one-way valves for the malleation unlatching, and 11 is outlet pipe, 12 is tracheae, and 13 is relief opening, and 14 is piston, and 15 is cylinder, 16 is inlet hole, and 17 is interlayer space, and 18 is air outlet hole, and 19 is breathing pipe
Embodiment
Referring to Fig. 1, Fig. 2, a kind of embodiment of the general purpose engine of low exhaust gas emission, comprise general purpose engine casing with cylinder 15 and crankcase 1, cylinder head 4 is assemblied in cylinder 15 upper ends of casing, with the sealing gasket sealing, cylinder head cover 5 is assemblied in cylinder head 4 upper ends, seals with sealing gasket between cylinder head cover and the cylinder head between cylinder head and the casing, cavity between cylinder head 4 and the cylinder head cover 5 is a rocker arm chamber 6, and cylinder head cover 5, cylinder head 4 and casing are fastenedly connected by construction bolt.Silencing apparatus 8 is communicated with the relief opening 13 of cylinder head by outlet pipe 11.Crankcase 1 inner chamber of described casing is communicated with by the rocker arm chamber 6 of air vent with cylinder head 4 upper ends, the air vent employing of present embodiment is provided with from rocker arm chamber at described cylinder head 4 and is through to first vent 3 that closes the cylinder face, casing is provided with second vent 2 crankcase intracavity is communicated with first vent 3 on the cylinder head, by the air vent that constitutes that linked to each other with second vent 2 by first vent 3 crankcase 1 inner chamber is communicated with rocker arm chamber 6.Described cylinder head cover 5 is provided with inlet hole 16 makes the external world communicate with rocker arm chamber 6, and the one-way valve 7 that negative pressure is opened is set at inlet hole 16 places, also is provided with an air outlet hole 18 on the cylinder head cover 5, and the one-way valve 10 that air outlet hole 18 is opened by malleation is communicated with silencing apparatus 8.Described cylinder head cover 5 is the double layer construction that inner cover 5a and shell 5b constitute, be provided with interlayer space 17 between inner cover 5a and the shell 5b, one inlet hole 16 is set on the inner cover 5a is communicated with rocker arm chamber 6 and interlayer space 17, the one-way valve 7 that negative pressure is opened is located at the chamber that inlet hole 16 places are positioned at inner cover 5a.The one-way valve 7 that described negative pressure is opened is the reed-type one-way valve, comprise elastic valve plate 7a and aperture limiting stopper 7b, the fixed end that the end of aperture limiting stopper 7b is pushed down elastic valve plate 7a is fixedlyed connected with the inner cover 5a of cylinder head cover, the fixing surely or bolt of its fixedly connected employing riveting, the other end perk of aperture limiting stopper 7b, be used for the open angle of elastic valve plate 7a is limited, excessively cause elastic fatigue and can't reset to prevent that elastic valve plate 7a from opening, the free end of described elastic valve plate 7a blocks inlet hole 16.One air outlet hole 18 is set on the described inner cover 5a, and air outlet hole 18 extends shell 5b by breathing pipe 19.Ventilating hole is set on the shell 5b is communicated with extraneous and interlayer space 17.The ventilating hole of described interlayer space 17 can be provided with filtrating equipment, makes the air that enters obtain filtering, and avoids airborne grit to enter.The outlet side of the one-way valve 10 that described malleation is opened is connected with silencing apparatus 8 by connecting head, and inlet end is connected by the breathing pipe 19 that air outlet hole 18 on tracheae 12 and the cylinder head cover 5 is provided with.
If in order to accelerate HC, the CO in the waste gas, the chemical reaction of NOx, also three-way catalyst 9 can be set in silencing apparatus 8, set three-way catalyst only need be the inferior chemical reaction that just can accelerate HC, CO, NOx, reach the requirement of high-level reduction exhaust emission, adopt low-quality three-way catalyst also can be manufacturing industry and user's reduction of expenditure.
The utility model not only is confined to the foregoing description, the described air vent that is used for being communicated with crankcase intracavity and rocker arm chamber also can be external breathing pipe, breathing pipe one end is connected on the crankcase and communicates with crankcase intracavity, the other end of breathing pipe is connected on the cylinder head and communicates with rocker arm chamber, and perhaps the other end of breathing pipe is connected on the cylinder head cover and communicates with rocker arm chamber.
In the general purpose engine working procedure, piston 14 moves reciprocatingly in cylinder 15, in piston 14 upstroke processes, the tightness space that crankcase intracavity communicates with rocker arm chamber forms the negative pressure of pact-10kPa, open the one-way valve of the negative pressure unlatching of cylinder head cover by negative pressure, and a large amount of fresh airs is temporarily laid in from inlet hole suction rocker arm chamber; In the descent of piston movement process, the tightness space that crankcase intracavity communicates with rocker arm chamber forms the malleation of about 10kPa, and the closed check valve inlet hole that negative pressure is opened, open the one-way valve that malleation is opened simultaneously, a large amount of fresh airs of laying in the rocker arm chamber are forced to deliver in the silencing apparatus, the high-temp waste gas of discharging with motor mixes, make the sufficient oxygen that contains in HC, CO, NOx and the fresh air in the high-temp waste gas carry out sufficient chemical reaction, just give off silencing apparatus after allowing the content of HC, CO in the waste gas, NOx reduce greatly.After general purpose engine adopts the utility model structure, can guarantee to supply with sufficient oxygen into the chemical reaction of HC, CO, NOx in the waste gas, HC+NOx discharge amount in the waste gas is reduced to 3～5g/kWh, the CO discharge amount is reduced to 150～250g/kWh, reaches the emission regulation demands standard of each developed country's strictness.
Claims (7)
1. the general purpose engine of a low exhaust gas emission, comprise general purpose engine casing with cylinder and crankcase, cylinder head is assemblied in the cylinder upper end of casing, cylinder head cover is assemblied in the cylinder head upper end, cavity between cylinder head and the cylinder head cover is a rocker arm chamber, silencing apparatus is communicated with the relief opening of cylinder head by outlet pipe, it is characterized in that: the crankcase intracavity of described casing is communicated with by the rocker arm chamber of air vent with the cylinder head upper end, cylinder head cover is provided with inlet hole makes the external world communicate with rocker arm chamber, at air inlet position the one-way valve that negative pressure is opened is set, also be provided with an air outlet hole on the cylinder head cover, the one-way valve that air outlet hole is opened by malleation is communicated with silencing apparatus.
2. the general purpose engine of low exhaust gas emission according to claim 1, it is characterized in that: described cylinder head is provided with from rocker arm chamber and is through to first vent that closes the cylinder face, casing is provided with second vent crankcase intracavity is communicated with first vent on the cylinder head, by the air vent that constitutes that linked to each other with second vent by first vent crankcase intracavity is communicated with rocker arm chamber.
3. the general purpose engine of low exhaust gas emission according to claim 1, it is characterized in that: described air vent is external breathing pipe, breathing pipe one end is connected on the crankcase and communicates with crankcase intracavity, the other end of breathing pipe is connected on the cylinder head and communicates with rocker arm chamber, and perhaps the other end of breathing pipe is connected on the cylinder head cover and communicates with rocker arm chamber.
4. the general purpose engine of low exhaust gas emission according to claim 1, it is characterized in that: described cylinder head cover is the double layer construction that inner cover and shell constitute, be provided with interlayer space between inner cover and the shell, inlet hole is set on the inner cover is communicated with rocker arm chamber and interlayer space, the one-way valve that negative pressure is opened is located at the chamber that air inlet position is positioned at inner cover, set out pore on the inner cover and extend shell, ventilating hole is set on the shell is communicated with the external world and interlayer space by breathing pipe.
5. the general purpose engine of low exhaust gas emission according to claim 4, it is characterized in that: the one-way valve that described negative pressure is opened is the reed-type one-way valve, comprise elastic valve plate and aperture limiting stopper, the fixed end that one end of aperture limiting stopper is pushed down elastic valve plate is fixedlyed connected with the inner cover of cylinder head cover, the other end perk of aperture limiting stopper, the free end of elastic valve plate blocks inlet hole.
6. the general purpose engine of low exhaust gas emission according to claim 1 is characterized in that: the outlet side of the one-way valve that described malleation is opened is connected with silencing apparatus, and inlet end is connected with air outlet hole on the cylinder head cover by tracheae.
7. the general purpose engine of low exhaust gas emission according to claim 1 is characterized in that: in the described silencing apparatus three-way catalyst is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202073213U CN201593452U (en) | 2009-11-25 | 2009-11-25 | Universal engine with low exhaust emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202073213U CN201593452U (en) | 2009-11-25 | 2009-11-25 | Universal engine with low exhaust emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201593452U true CN201593452U (en) | 2010-09-29 |
Family
ID=42775518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202073213U Expired - Fee Related CN201593452U (en) | 2009-11-25 | 2009-11-25 | Universal engine with low exhaust emission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201593452U (en) |
-
2009
- 2009-11-25 CN CN2009202073213U patent/CN201593452U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204419299U (en) | Crankcase ventilation system, Engine ECU, motor and automobile | |
| CN102562222B (en) | Gas-oil separation check valve of automobile crankcase | |
| CN201826926U (en) | Breathing system of 2.8L turbocharging diesel motor | |
| CN201593452U (en) | Universal engine with low exhaust emission | |
| CN101705856A (en) | General-purpose engine with low exhaust gas emission | |
| CN203403924U (en) | Breathing system of engine | |
| CN204552997U (en) | A kind of intake and exhaust structure of motor and motor | |
| CN201963396U (en) | Four-stroke internal combustion engine for handheld tool | |
| CN104948262A (en) | Oil-gas separator | |
| CN202402171U (en) | Layered carburetor for diaphragm of rotary valve | |
| CN203717075U (en) | Crankcase ventilation system, engine and automobile | |
| CN101694175A (en) | Method and device for reducing pollution from exhaust emission of internal combustion engine | |
| CN201496119U (en) | Diaphragm pump lubricating four-stroke-cycle 360-degree turning gasoline engine | |
| CN205689301U (en) | Heavy duty | |
| CN104564408A (en) | Low oil consumption type engine crankcase and engine set | |
| CN205532844U (en) | Multilayer layering scavenging engine | |
| CN204851377U (en) | Oil/gas separator | |
| CN204804975U (en) | Cowl hood that possesses respirator function and engine and double -cylinder type diesel engine thereof | |
| CN209743031U (en) | Energy-saving engine | |
| CN103174505B (en) | Two stroke engine | |
| CN203239444U (en) | Two-stroke engine | |
| CN1918366A (en) | An internal combustion engine and an engine head | |
| CN212054855U (en) | Oil-gas separator | |
| CN202100340U (en) | Crank case of engine | |
| CN201041059Y (en) | Oil-saving device of engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LONCIN GENERAL DYNAMICS CO., LTD. Free format text: FORMER NAME: LONCIN INDUSTRY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 99 No. 400052 Chongqing Jiulongpo Hualong Avenue Kowloon Park Patentee after: Loncin General Dynamics Co., Ltd. Address before: 99 No. 400052 Chongqing Jiulongpo Longhua Avenue Kowloon Park Patentee before: Loncin Industry Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20131125 |