CN104742727A - Tracked dual-fuel bulldozer - Google Patents
Tracked dual-fuel bulldozer Download PDFInfo
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- CN104742727A CN104742727A CN201310755957.2A CN201310755957A CN104742727A CN 104742727 A CN104742727 A CN 104742727A CN 201310755957 A CN201310755957 A CN 201310755957A CN 104742727 A CN104742727 A CN 104742727A
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- fuel
- bulldozer
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- natural gas
- engine
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Abstract
The invention belongs to the field of engineering machinery and particularly relates to a tacked dual-fuel bulldozer. The tracked dual-fuel bulldozer is designed in order to overcome the defects of serious pollution and poor economical efficiency of most bulldozers on the current market due to adoption of single fuel oil as a power material. The tracked dual-fuel bulldozer adopts duel fuels including diesel and liquefied natural gas and basically in a combustion mode with half diesel and half liquefied natural gas, LNG (liquefied natural gas) is cleaned before liquefaction, high combustion heat value is achieved due to direct supply of liquefied gas, the LNG in a liquid state is stored in dwarf cylinders at a low temperature, internal pressure of the dwarf cylinders is normally within 2Mpa, and the dwarf cylinders are provided with multi-protection pressure reduction devices, so that safety performance is pretty high. Due to the fact that the liquefied natural gas is cheaper than the diesel, higher economical efficiency is realized; in addition, the natural gas has obvious advantages in resources, cost, environment friendliness and the like.
Description
Technical field
Patent of the present invention belongs to engineering machinery field, particularly relates to a kind of crawler doer.
Background technology
Bulldozer is in the market using diesel oil as single power raw material substantially, not only seriously polluted, and economy is poor.Discharge by driving engine the problem of environmental pollution and increasingly serious energy problem that cause in order to solve, countries in the world, while formulating the production that carrys out specification automobile of various strict vehicular discharge regulation and use, start to greatly develop substitute fuel automobile.Along with the enhancing of whole mankind's environmental consciousness, China is also more and more higher to the engine emission requirements of whole construction machinery industry.
Patent of invention content
Patent of the present invention is to overcome above-mentioned deficiency, devises a kind of crawler type hybrid fuel bulldozer, and bulldozer adopts diesel oil-liquefied natural gas hybrid fuel scheme.Controlled the ratio of automatic mixing bavin oil and gas by ECU according to the change of engine loading during burning.Idling operation generally runs at diesel oil list fuel state, and the ratio of middle small load condition substitute gas diesel oil is less, and can reach larger proportion at high load capacity operating mode natural fuels in consumed total amount of fuel.Switching can be manual switchover, also can be set as that ECU automatically switches according to operating mode situation.
Patent of the present invention for achieving the above object, have employed following technical scheme: diesel oil-natural gas double-fuel digital control system is on the basis of diesel engine, install the electric-controlling injection system of a set of use natural fuels as combustion material additional.The compression-ignition mode that system retains former diesel engine is constant, and high compression ratio is constant, engine body and parts constant.When driving engine runs, diesel fuel system original in each working cycle sprays into a small amount of diesel oil, as the natural fuels in liquid spark plug, some gas cylinder and air Mixture.Former diesel engine can be naturally aspirated, also can be supercharged diesel engine, the driving performance installing rear vehicle additional with install additional before be as good as.Can return to 100% diesel oil work in 1 ~ 2S time where necessary, switching can be manual switchover, also can be set as that ECU automatically switches according to operating mode situation.Hybrid fuel bulldozer comprises former bulldozer assembly, vehicle gas cylinder, system master case and manipulation debugging instrument, bracket system.It is characterized in that diesel oil-natural gas double fuel engine be reequip on former diesel engine basis not only can natural gas fuel (using diesel oil ignited on a small quantity) but also can with a kind of driving engine (hereinafter referred to as binary fuel engine) of diesel oil as single-fuel.The Pilot diesel flow rate of binary fuel engine is controlled by original mechanical type injection pump, only increases a set of gas supply system, and need not to diesel engine do very large change just can realize hybrid fuel run.
Vehicle gas cylinder refers to the device of natural gas-storing, primarily of gaholder, high-pressure solenoid valve, compression indicator, filling gas mouth, pressure duct composition.System master case is the core component of hybrid fuel central authorities digital control system.By pipeline system, ECU, the major part of gas supply system installs control concentratedly, and convenience is equipped with driving engine.In case, major equipment has: fuel consumption meter, combined electrical jet supply gas assembly, compression indicator, ECU, pressure regulator.Commissioning staff can open system Debugging interface input parameter and instruction debugging control system real-time and easily, realizes the intelligent regulator of facilitation.Use middle chaufeur can at any time observing system run real time status.ECU ECU (Electrical Control Unit) is by after the engine working conditions signals such as monitoring collection vehicle real-time oil consumption of engine, engine exhaust temperature, engine speed, supply gas pressure, control bifuel system start and stop according to vehicle driving requirements and applicable fuel supply is provided, there is selfdiagnosis and adaptation function, ensure driving engine economy, environmental protection, steady running.Its operating temperature is :-40 DEG C--100 DEG C, system debug need be carried out with special manipulation debugging instrument.SD card in manipulation debugging instrument can store car in real time and the data such as accumulative oil consumption, engine temperature, engine speed, supply gas pressure, deliverability of gas.
The beneficial effect of patent of the present invention: hybrid fuel bulldozer can reduce the contaminative to environment, and reduces use cost, improves economy.
Accompanying drawing explanation
Fig. 1 is crawler type hybrid fuel bulldozer structural representation
1. bulldozer assembly 2. bracket system 3. system master case and manipulation debugging instrument 4. vehicle gas cylinder
5. damping rubber
Detailed description of the invention
As shown in Figure 1, the basis of bulldozer assembly 1 increases the electric-controlling injection system of a set of use natural fuels as combustion material.The compression-ignition mode that system retains former diesel engine is constant, and high compression ratio is constant, engine body and parts constant.Bracket system 2 high strength bolt is arranged on after bulldozer rear axle box on plate, and vehicle gas cylinder 4 is arranged on bracket system 2, arranges damping rubber skin 5 under bracket system, protects the safe handling of gas cylinder with this.
Vehicle gas cylinder refers to the device of natural gas-storing, primarily of gaholder, high-pressure solenoid valve, compression indicator, filling gas mouth, pressure duct composition.
System master case is the core component of hybrid fuel central authorities digital control system.By pipeline system, ECU, the major part of gas supply system installs control concentratedly, and convenience is equipped with driving engine.In case, major equipment has: fuel consumption meter, combined electrical jet supply gas assembly, compression indicator, ECU, pressure regulator.
Commissioning staff can open system Debugging interface input parameter and instruction debugging control system real-time and easily, realizes the intelligent regulator of facilitation.Use middle chaufeur can at any time observing system run real time status.SD card in manipulation debugging instrument can store car in real time and the data such as accumulative oil consumption, engine temperature, engine speed, supply gas pressure, deliverability of gas.
The above is only the preferred embodiment of patent of the present invention, not does any pro forma restriction to the structure of patent of the present invention.Every technical spirit according to patent of the present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of the technical scheme of patent of the present invention.
Claims (2)
1. a crawler type hybrid fuel bulldozer, comprise bulldozer assembly, bracket system, system master case and manipulation debugging instrument, vehicle gas cylinder, damping rubber, the basis of bulldozer assembly increases the electric-controlling injection system of a set of use natural fuels as combustion material.The compression-ignition mode that system retains former diesel engine is constant, and high compression ratio is constant, engine body and parts constant.Bracket system high strength bolt is arranged on after bulldozer rear axle box on plate, and vehicle gas cylinder is arranged on bracket system, arranges damping rubber skin under bracket system, protects the safe handling of gas cylinder with this.
2. a kind of crawler type hybrid fuel bulldozer according to claim 1, it is characterized in that: the mechanical type injection pump that the Pilot diesel flow rate of binary fuel engine is regulated and controled by ECU controls, only increase a set of gas supply system, and need not to diesel engine do very large change just can realize hybrid fuel run.Idling operation generally runs at diesel oil list fuel state, and the ratio of middle small load condition substitute gas diesel oil is less, and can reach larger proportion at high load capacity operating mode natural fuels in consumed total amount of fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755957.2A CN104742727A (en) | 2013-12-31 | 2013-12-31 | Tracked dual-fuel bulldozer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310755957.2A CN104742727A (en) | 2013-12-31 | 2013-12-31 | Tracked dual-fuel bulldozer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104742727A true CN104742727A (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310755957.2A Pending CN104742727A (en) | 2013-12-31 | 2013-12-31 | Tracked dual-fuel bulldozer |
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| CN (1) | CN104742727A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5330031A (en) * | 1992-03-30 | 1994-07-19 | Clark Material Handling Company | Alternative fuel system for powered industrial vehicle |
| CN202391576U (en) * | 2011-12-21 | 2012-08-22 | 湖北丹江特种汽车有限公司 | Double-fuel automobile burning mixed diesel/compressed natural gas (CNG) |
| US20130068178A1 (en) * | 2011-09-20 | 2013-03-21 | Deere & Company | Cooling package baffle or ducting |
| CN202864748U (en) * | 2012-10-26 | 2013-04-10 | 江麓机电集团有限公司 | Folding-arm crane for emergency rescue and disaster relief |
| CN202867007U (en) * | 2012-11-16 | 2013-04-10 | 潍坊鑫派动力有限公司 | Dual-fuel motor |
-
2013
- 2013-12-31 CN CN201310755957.2A patent/CN104742727A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5330031A (en) * | 1992-03-30 | 1994-07-19 | Clark Material Handling Company | Alternative fuel system for powered industrial vehicle |
| US20130068178A1 (en) * | 2011-09-20 | 2013-03-21 | Deere & Company | Cooling package baffle or ducting |
| CN202391576U (en) * | 2011-12-21 | 2012-08-22 | 湖北丹江特种汽车有限公司 | Double-fuel automobile burning mixed diesel/compressed natural gas (CNG) |
| CN202864748U (en) * | 2012-10-26 | 2013-04-10 | 江麓机电集团有限公司 | Folding-arm crane for emergency rescue and disaster relief |
| CN202867007U (en) * | 2012-11-16 | 2013-04-10 | 潍坊鑫派动力有限公司 | Dual-fuel motor |
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Application publication date: 20150701 |