CN104533606B - A kind of liquefied fuel engine - Google Patents
A kind of liquefied fuel engine Download PDFInfo
- Publication number
- CN104533606B CN104533606B CN201510014386.6A CN201510014386A CN104533606B CN 104533606 B CN104533606 B CN 104533606B CN 201510014386 A CN201510014386 A CN 201510014386A CN 104533606 B CN104533606 B CN 104533606B
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- Prior art keywords
- base
- crankcase
- gas storage
- storage tank
- liquid gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention provides a kind of liquefied fuel engine, belong to technical field of engines.It solves the problems, such as that available engine refueling operation is cumbersome.This liquefied fuel engine, including crankcase, the crankcase is interior to be provided with output shaft, also include liquid gas storage tank, liquid gas storage tank is arranged on crankcase, and liquid gas storage tank is located at the top of output shaft, and liquid gas storage tank is removably fixed with by a fixed structure with crankcase.This liquefied fuel engine uses process safety, convenient.
Description
Technical field
The invention belongs to technical field of engines, is related to a kind of liquefied fuel engine.
Background technology
The Work machines such as agricultural ploughing machine, mini-tiller, hay mover, ice removing machine are used widely in agricultural field, with mini-tiller
Exemplified by, using small diesel engine or gasoline engine as power, there is the features such as in light weight, small volume, simple in construction, be widely used in putting down
Original, mountain area, the nonirrigated farmland on hills, paddy field, orchard etc., the plant equipment independent as one, it usually needs one engine of installation
As power output.
Such as Chinese utility model patent application (application number：200920206914.8) disclose a kind of mini-tiller, including machine
Frame, engine, engine cylinder head, fuel tank, transmission case, standpipe, the fuel tank of the mini-tiller is rear-mounted, i.e., described fuel tank is arranged at
The top of the engine cylinder head, the engine of the mini-tiller are arranged in frame, and fuel tank is fixed on engine cylinder-body.And make
The engine used can be independently sold for one, such as Chinese utility model patent application (application number：200920118728.9)
Disclose a kind of general purpose engine, including a crankcase and one are connected on crankcase, with crankcase in certain
To the cylinder block of upper angle, the top that the silencer with silencer cylinder is installed on cylinder block is connected with combustion chamber, air filter pair
Silencer is answered to be positioned apart from the end position in cylinder block, the big cover of lower wind scooper, side wind deflector, wind-guiding and drawstring cover are pacified respectively
Surrounding loaded on crankcase and cylinder block, fin is disposed with the lateral surface of crankcase and cylinder block, in fin
Upper and lower ends be all provided with heatsink transverse piece, the engine is same with the engine on above-mentioned mini-tiller to use fuel tank, fuel tank
Profile be processed to be adapted with the external structure of cylinder body, and fuel tank is directly anchored on cylinder body, and the fuel oil in fuel tank makes
Need to refuel to fuel tank after being finished, not only fuel tank and outer surface of cylinder block can be made to be covered with oil stain, sheltered evil people and countenance evil practices, and refueled
Journey is troublesome in poeration, time-consuming, causes the reduction of work continuity.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that a kind of liquefied fuel engine, this
Liquefied fuel engine uses process safety, convenient.
The purpose of the present invention can be realized by following technical proposal：A kind of liquefied fuel engine, including crankcase,
Output shaft is provided with the crankcase, it is characterised in that is also arranged on crankcase including liquid gas storage tank, the liquid gas storage tank
On, and liquid gas storage tank is located at the top of output shaft, the liquid gas storage tank is removably fixed with by a fixed structure with crankcase.
Liquid gas storage tank is an independent part, and an engine can be equipped with multiple liquid gas storage tanks, and liquid gas storage tank can be with
Voluntarily independent filling propane, can also arrive working terminal and be changed, and can carry multiple liquid gas storage tanks to place of working during work
Point, you can it is convenient and swift more to reengine the liquid gas storage tank being finished manually, keep work continuity；This is started simultaneously
After machine is installed on the farm equipments such as mini-tiller, because liquid gas storage tank is arranged on crankcase, therefore weight is more concentrated, gram
Take when fuel tank is fixed on handle by existing part agricultural ploughing machine and operated the defects of laborious.
In above-mentioned liquefied fuel engine, in addition to laminal base, an edge of the base are turned under rolling over
Form flexible connection flange one, the another side of the base is along being bent to form cross section in V-shape and flexible
Flange two is connected, the connection flange one is fixedly connected with crankcase respectively with being connected flange two, and base keep level, base
There is gap, above-mentioned liquid gas storage tank is arranged on base between bottom and crankcase lateral wall.Due to third in liquid gas storage tank
Alkane is different from common liquid level of fuel oil in fuel tank, and propane is stored in liquid gas storage tank using liquid form after compression, therefore to liquid gas storage tank
Security during use proposes higher requirement, and engine can produce continual vibrations in use, if the vibrations are held
Continue, be significantly delivered on liquid gas storage tank, potential safety hazard can be produced, therefore base is set on this engine, the base passes through company
Connect flange one and connection flange two be connected with crankcase, and there is gap between Its lower side face and crankcase lateral wall,
That is the middle part of base is hanging, and liquid gas storage tank is fixed on base by fixed structure, i.e. the bottom of liquid gas storage tank is pressed on base
On side, vibrations can be filtered by base, alleviated caused by engine, while base is horizontally disposed with, and is avoided during vibrations
The displacement that liquid gas storage tank produces to side tends to, and also makes the vibrations to liquid gas storage tank uniform, crankcase includes crankshaft room and combustion
Room is burnt, caused vibrations can be with far amplify apart from change in crankshaft room, and combustion chamber top sets silencer, and liquid gas storage tank is located at
Above crankshaft room, to reduce vibrations, security performance is improved.
In above-mentioned liquefied fuel engine, the angle between the connection flange one and base is acute angle, the song
There are some legs on axle box lateral wall, there is inclined mounting surface, above-mentioned connection flange one and mounting surface on the leg
Merga pass screw is affixed to be fixedly connected with.Vibrations caused by crankcase pass to connection flange one by leg, because connection is turned over
Side one has angle with base horizontal component, between the two with buffering effect, so that the vibrations that will be connected on flange one are filtered,
Reduce the shock momentum being delivered on base.
In above-mentioned liquefied fuel engine, on the crankcase have connection projection, above-mentioned connection flange two with
Connection projection is fixedly connected with by screw.Cross section is in V-shape, i.e., micro can compress or stretching connects flange two so that bottom
Seat has horizontal play space in horizontal level, while also causes base to have upper and lower bradyseism space, mating connection flange one
To reduce vibrations, while connect flange one and connect the outside that flange two is respectively positioned on liquid gas storage tank so that vibrations need to pass through bottom
Seat is transmitted, i.e., can be alleviated by base, reduce the influence to liquid gas storage tank.
In above-mentioned liquefied fuel engine, two strip connecting plates are vertically fixed with the base upper side, this two
The lower end of connecting plate is fixedly connected with by screw and Base edge, and the fixed structure is arranged between two connecting plates.That is base
Liquid gas storage tank is supported, and liquid gas storage tank is fixed the fixed structure between connecting plate, between connecting plate and base
Using mode connects for screw, rather than the integral structure being stamped and formed out, being directly delivered on connecting plate for vibrations can be reduced, and then transmit
Onto liquid gas storage tank, base is rectangular, and connection flange one and connection flange two are respectively positioned at two relative edges at, two connecting plates point
Two relative edges that Wei Yu be not in addition are at, i.e., the tie point away from base and crankcase, and distance is transmitted in increase vibrations, reduces shake
Momentum.
In above-mentioned liquefied fuel engine, the fixed structure includes loose collar, the upper end one of two connecting plates
Along the connecting portion for being bent to form L fonts, the lateral wall of above-mentioned loose collar is connected in the both ends of connecting portion by welding, described for side
Loose collar is set on the lateral wall of liquid gas storage tank, and the both ends of loose collar are fixedly connected with by fixing bolt.Loose collar is a kind of
Common secure component, using strip, there is the stator of bar shaped, the stator is bent circlewise, and its both ends passes through
Fixing bolt connect, be tightened bolt when, loose collar can hold liquid gas storage tank tightly, unclamp fixing bolt when, loose collar
Diameter becomes big, and liquid gas storage tank can take out, therefore the replacing of liquid gas storage tank is convenient and swift, and the connecting portion that connecting plate passes through L-type
It is fixedly connected with retaining ring, a connecting plate has two tie points with retaining ring, i.e. connecting portion plays structural strengthening to loose collar
Effect.Certainly some bolts can also be used as the fixation to liquid gas storage tank, fixed structure, the upper end of connecting plate opens up
Some screws, the end of bolt through screw and bolt are pressed in the side wall of liquid gas storage tank.
Compared with prior art, this liquefied fuel engine has advantages below：
1st, because this engine uses liquefied fuel propane to be equipped with liquid gas storage tank, liquid gas storage tank can be voluntarily as fuel
Independent filling propane, can also arrive working terminal and be changed, and multiple liquid gas storage tanks can be carried during work to job site, i.e.,
The liquid gas storage tank being finished can be more reengined manually, it is convenient and swift, keep work continuity.
2nd, because base is connected by connecting flange one and connection flange two with crankcase, and the middle part of base is hanging,
Vibrations caused by engine can be filtered by base, connection flange one and connection flange two, alleviated, and to reduce vibrations, improve peace
Full performance.
3rd, because the cross section for connecting flange two is in V-shape, i.e., it micro can compress or stretching connects flange two so that
Base has horizontal play space in horizontal level, while also causes base to have upper and lower bradyseism space, therefore crankcase
On vibrations can be alleviated by base, reduce the influence to liquid gas storage tank.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of this liquefied fuel engine.
Fig. 2 is the structural side view of this liquefied fuel engine.
Fig. 3 is the dimensional structure diagram of crankcase.
Fig. 4 is dimensional structure diagram when this liquefied fuel engine does not install liquid gas storage tank.
In figure, 1, crankcase；11st, leg；12nd, projection is connected；13rd, output shaft；14th, silencer；2nd, base；21st, even
Connect flange one；22nd, flange two is connected；3rd, liquid gas storage tank；4th, fixed structure；41st, loose collar；42nd, fixing bolt；5th, connecting plate；
51st, connecting portion.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
As shown in figure 1, a kind of liquefied fuel engine, include the base 2 and liquid gas storage tank 3 of crankcase 1, tabular,
Crankcase 1 includes crankshaft room and combustion chamber, being provided with bent axle in crankshaft room, bent axle is connected with output shaft 13, outside crankcase 1
Silencer 14 is fixed with side wall, edge and the crankcase 1 of base 2 are fixedly connected with, and the base 2 is located at the top of output shaft 13,
Silencer 14 be located at the side of base 2, the upper side keep level of base 2, and the downside of base 2 and the lateral wall of crankcase 1 it
Between there is gap, liquid gas storage tank 3 is arranged on the upper side of base 2, and liquid gas storage tank 3 can with base 2 by a fixed structure 4
Dismounting is connected.Liquid gas storage tank 3 is cylindrical in shape shape, is an independent part, and an engine can be equipped with multiple liquid gas storage tanks 3,
Liquid gas storage tank 3 voluntarily can independently fill propane, can also arrive working terminal and be changed, and can carry multiple liquefaction during work
Gas tank 3 arrives job site, you can and it is convenient and swift more to reengine the liquid gas storage tank 3 being finished manually, keep work to link up
Property；Because the propane in liquid gas storage tank 3 is different from common liquid level of fuel oil in fuel tank, propane is stored in liquefaction using liquid form after compression
In gas tank 3, therefore security when using liquid gas storage tank 3 proposes higher requirement, and engine can produce in use
Continual vibrations, if the vibrations continue, are significantly delivered on liquid gas storage tank 3, potential safety hazard, therefore this engine can be produced
Upper setting base 2, the base 2 are connected by edge and crankcase 1, and between the downside of base 2 and the lateral wall of crankcase 1
With gap, i.e. the middle part of base 2 is hanging, liquid gas storage tank 3 is fixed on base 2 by fixed structure 4, i.e. liquid gas storage tank 3
Bottom is pressed on the upper side of base 2, and vibrations caused by engine can be filtered by base 2, alleviated, caused vibrations in crankshaft room
It can become remote with distance and amplify, therefore silencer 14 is located above combustion chamber, liquid gas storage tank 3 is located above crankshaft room, to subtract
Few vibrations, improve security performance.
Specifically, with reference to shown in Fig. 2, Fig. 3, base 2 is rectangular, and an edge of the base 2 is turned under folding and forms connection
Flange 1, the angle between the connection flange 1 and base 2 are acute angle, have two legs 11 on the lateral wall of crankcase 1,
There is inclined mounting surface, connection flange 1 is affixed merga pass screw with mounting surface and is fixedly connected with, crankcase 1 on leg 11
Caused vibrations pass to connection flange 1 by leg 11, because connection flange 1 and the horizontal component of base 2 have folder
Angle, between the two with buffering effect, so as to which the vibrations connected on flange 1 be filtered, reduce the shake being delivered on base 2
Momentum.The relative edge of base 2 has connection convex along the connection flange 2 22 that cross section is in V-shape is bent to form on crankcase 1
Block 12, connection flange 2 22 be fixedly connected with being connected projection 12 by screw, cross section is in V-shape, i.e., can it is micro compress or
Stretching connection flange 2 22 so that base 2 has horizontal play space in horizontal level, while it is upper also make it that base 2 has
Lower bradyseism space, mating connection flange 1 shake to reduce, while connect flange 1 and connect flange 2 22 and be respectively positioned on liquid
The outside of LPG cylinder 3 so that vibrations need to be transmitted by base 2, i.e., can be alleviated by base 2, reduce to liquefied gas
The influence of tank 3.
With reference to shown in Fig. 4, fixed structure 4 includes loose collar 41, and two strip connecting plates are vertically fixed with the upper side of base 2
5, the lower end of two connecting plate 5 is fixedly connected with by screw and the edge of base 2, and the upper end side edge of two connecting plates 5 is curved
Folding forms the connecting portion 51 of L fonts, and the lateral wall of loose collar 41 is connected in the both ends of connecting portion 51,41 sets of loose collar by welding
It is located on the lateral wall of liquid gas storage tank 3, and the both ends of loose collar 41 are fixedly connected with by fixing bolt 42.Loose collar 41 is a kind of normal
The secure component seen, using strip, there is the stator of bar shaped, the stator is bent circlewise, and its both ends passes through solid
Determine bolt 42 to connect, be tightened bolt 42 when, loose collar 41 can hold liquid gas storage tank 3 tightly, unclamp fixing bolt 42 when, pine
The diameter of tight ring 41 becomes big, and liquid gas storage tank 3 can take out, therefore the replacing of liquid gas storage tank 3 is convenient and swift.Base 2 is to liquefied gas
Tank 3 is supported, and liquid gas storage tank 3 is fixed the fixed structure 4 between connecting plate 5, is adopted between connecting plate 5 and base 2
With mode connects for screw, rather than the integral structure being stamped and formed out, being directly delivered on connecting plate 5 for vibrations can be reduced, and then transmit
Onto liquid gas storage tank 3, base 2 is rectangular, and respectively positioned at two relative edges at, two connect for connection flange 1 and connection flange 2 22
Fishplate bar 5 is respectively positioned at two other relative edges along place, i.e., the tie point away from base 2 with crankcase 1, increase shake transmission away from
From, shock momentum is reduced, and connecting plate 5 is fixedly connected with by the connecting portion 51 of L-type with retaining ring, a connecting plate 5 has with retaining ring
There are two tie points, i.e. connecting portion 51 plays structural strengthening effect to loose collar 41.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Although more having used the terms such as crankcase 1, leg 11, connection projection 12 herein, it is not precluded from using
The possibility of other terms.It is used for the purpose of more easily describing and explaining the essence of the present invention using these terms；Them
Any additional limitation is construed to all to disagree with spirit of the present invention.
Claims (6)
1. a kind of liquefied fuel engine, including crankcase (1), the crankcase (1) is interior to be provided with output shaft (13), and it is special
Sign is, in addition to liquid gas storage tank (3), and the liquid gas storage tank (3) is arranged on crankcase (1), and liquid gas storage tank (3) is located at
The top of output shaft (13), the liquid gas storage tank (3) are removably fixed with by a fixed structure (4) and crankcase (1)；It is described
Liquefied fuel engine also includes laminal base (2), an edge of the base (2) be turned under folding formed it is flexible
Flange one (21) is connected, it is in V-shape and flexible connection flange that the another side edge of the base (2), which is bent to form cross section,
Two (22), the connection flange one (21) are fixedly connected with crankcase (1) respectively with being connected flange two (22), base (2) bottom
There is gap between crankcase (1) lateral wall, above-mentioned liquid gas storage tank (3) is arranged on base (2).
2. liquefied fuel engine according to claim 1, it is characterised in that base (2) keep level.
3. liquefied fuel engine according to claim 2, it is characterised in that the connection flange one (21) and base
(2) angle between is acute angle, has some legs (11) on crankcase (1) lateral wall, has on the leg (11)
There is inclined mounting surface, above-mentioned connection flange one (21) is affixed merga pass screw with mounting surface and is fixedly connected with.
4. liquefied fuel engine according to claim 2, it is characterised in that there is connection on the crankcase (1)
Projection (12), above-mentioned connection flange two (22) are fixedly connected with being connected projection (12) by screw.
5. the liquefied fuel engine according to Claims 2 or 3 or 4, it is characterised in that on base (2) upper side
The vertical connecting plate (5) for being fixed with two bar shapeds, the lower end of two connecting plate (5) are fixedly connected with by screw and base (2) edge,
The fixed structure (4) is arranged between two connecting plates (5).
6. liquefied fuel engine according to claim 5, it is characterised in that the fixed structure (4) includes loose collar
(41), the upper end side edge of two connecting plates (5) is bent to form the connecting portion (51) of L fonts, above-mentioned loose collar (41)
Lateral wall is connected in the both ends of connecting portion (51) by welding, and the loose collar (41) is set in the lateral wall of liquid gas storage tank (3)
On, and the both ends of loose collar (41) are fixedly connected with by fixing bolt (42).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014386.6A CN104533606B (en) | 2015-01-12 | 2015-01-12 | A kind of liquefied fuel engine |
| PCT/CN2015/071209 WO2016112556A1 (en) | 2015-01-12 | 2015-01-21 | Liquefied fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014386.6A CN104533606B (en) | 2015-01-12 | 2015-01-12 | A kind of liquefied fuel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104533606A CN104533606A (en) | 2015-04-22 |
| CN104533606B true CN104533606B (en) | 2018-01-30 |
Family
ID=52849199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510014386.6A Active CN104533606B (en) | 2015-01-12 | 2015-01-12 | A kind of liquefied fuel engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104533606B (en) |
| WO (1) | WO2016112556A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7459854B2 (en) * | 2021-10-08 | 2024-04-02 | トヨタ自動車株式会社 | Fuel tank |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203022877U (en) * | 2012-04-27 | 2013-06-26 | 杨华昌 | Portable small-size gas power generation unit |
| CN103459802A (en) * | 2011-02-03 | 2013-12-18 | 伯纳多·赫泽 | Portable gas powered internal combustion engine arrangement |
| CN203584568U (en) * | 2013-10-16 | 2014-05-07 | 重庆大江动力设备制造有限公司 | Gas power generation unit |
| CN204511647U (en) * | 2015-01-12 | 2015-07-29 | 温岭正峰动力有限公司 | A kind of liquefied fuel motor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0326022Y2 (en) * | 1985-08-19 | 1991-06-05 | ||
| JP3351492B2 (en) * | 1994-05-06 | 2002-11-25 | 株式会社日本ウォルブロー | Liquefied petroleum fuel supply system for internal combustion engine |
| US7878170B1 (en) * | 2007-10-24 | 2011-02-01 | Herzer Bernardo J | LPG fueled internal combustion engine powered devices |
| CN201180591Y (en) * | 2008-03-04 | 2009-01-14 | 中山市威胜金属制造有限公司 | Gas engine |
| US20130263821A1 (en) * | 2012-01-16 | 2013-10-10 | Nagesh Siddabasappa Mavinahally | Gaseous Fuel Tank and Power Tool |
-
2015
- 2015-01-12 CN CN201510014386.6A patent/CN104533606B/en active Active
- 2015-01-21 WO PCT/CN2015/071209 patent/WO2016112556A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103459802A (en) * | 2011-02-03 | 2013-12-18 | 伯纳多·赫泽 | Portable gas powered internal combustion engine arrangement |
| CN203022877U (en) * | 2012-04-27 | 2013-06-26 | 杨华昌 | Portable small-size gas power generation unit |
| CN203584568U (en) * | 2013-10-16 | 2014-05-07 | 重庆大江动力设备制造有限公司 | Gas power generation unit |
| CN204511647U (en) * | 2015-01-12 | 2015-07-29 | 温岭正峰动力有限公司 | A kind of liquefied fuel motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104533606A (en) | 2015-04-22 |
| WO2016112556A1 (en) | 2016-07-21 |
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Address after: 317500, No. 1, science Road, Chengdong street, Wenling, Zhejiang, Taizhou Patentee after: Qianjiang Group Wenling Zhengfeng Power Co., Ltd Address before: 317500, No. 1, science Road, Chengdong street, Wenling, Zhejiang, Taizhou Patentee before: Wenling Zhengfeng Power Co., Ltd. |
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