CN1241682A - Secondary liquid spraying system with sealed nozzle cone mixing diesel oil and rustproof liquid - Google Patents
Secondary liquid spraying system with sealed nozzle cone mixing diesel oil and rustproof liquid Download PDFInfo
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- CN1241682A CN1241682A CN 99103773 CN99103773A CN1241682A CN 1241682 A CN1241682 A CN 1241682A CN 99103773 CN99103773 CN 99103773 CN 99103773 A CN99103773 A CN 99103773A CN 1241682 A CN1241682 A CN 1241682A
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- plunger
- biliquid
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- diesel oil
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Abstract
The present invention discloses one kind of low-exhaust and low-oil consumption fuel oil spraying system for diesel engine. Of the spraying system, the jet has one oil channel and one water channel and the jet pump is one driven double-plunger one. The optimal oil-to-water ratio depends on the design of the oblique slot in plunger and the contour of the ascending section in cam profile. The spraying system is superior to available system with independent oil and water jets in that the spraying system may be installed in available diesel engine to constitute simplified overall diesel engine. The present invention makes it possible to realize double-fuel and single-fuel duel-purpose engine water-jetting internally cooled engine.
Description
The present invention relates to the fuel injection system of a kind of low emission, low oil consumption diesel engine.
Along with the progress of society, more and more higher to the requirement that reduces motor vehicle emission.Water spray cooling is the important measures that reduce the discharging of diesel engine toxic gas (referring to the Liu Ying chief editors, diesel engine principle, publishing house of HUST, March in 1984 the 1st edition, 65 pages).At early sixties, China seeps water to diesel oil and carried out a large amount of research and practice, and purpose at that time is fuel saving.The water spray cooling is the important measures that reduce combustion noise.Concerning diesel engine with direct injection, the water spray cooling can suppress rough running, further improves atomization quality, improves firing effect.Past calls diesel oil infiltration with water for oil, and this is not right.Water can not be confirmed by the practice in past but water spray reduces fuel consume for oil.The present invention advocates the discharging that the topmost purpose of water spray cooling is to reduce the diesel engine toxic gas.
The fuel injection of existing water spray cooling diesel engine and water spray cooling are ejecting systems independently separately.Two cover systems unite two into one and can change the general structure of existing diesel.In addition, two cover ejecting systems combine, and the realization of cooling off direct spray type double fuel and the dual-purpose motor of single fuel for water spray provides possibility, surpass two spargers because can not arrange on cylinder head.
The key issue of water spray cooling is the antirust problem that will solve diesel engine.It is the essential measure that addresses this problem that the present invention proposes water spray is changed into the spray aqueous rust preventive.The prescription of aqueous rust preventive is a lot (referring to Mo Zhiqiang, the Xu Dongqiang chief editor, fine chemistry industry is used one of prescription---3000 examples, Guangdong science and technology publishing house, March nineteen ninety the 1st edition, the 9th printing July in 1998,479 pages), the cheap prescription of price comparison is to add 3～5% natrium nitrosums and 0.5～0.6% natrium carbonicum calcinatum in the water.An other important rust preventing is to stop water spray, water vapor in the eliminating machine when shutting down in advance in 0.5～2 minute.
Purpose of the present invention provides a kind of diesel oil and aqueous rust preventive at sealed nozzle cone mixing secondary water spray biliquid ejecting system for the structure of simplifying water spray cooling diesel engine with realization water spray cooling direct spray type double fuel and the dual-purpose motor of single fuel.
Make a detailed description below with reference to accompanying drawing to realizing approach of the present invention.
Fig. 1 is that diesel oil and aqueous rust preventive are at sealed nozzle cone mixing sparger sectional view.
Fig. 2 is that Fig. 1 is along the 1-1 sectional view.
Fig. 3 is that diesel oil and aqueous rust preventive are at sealed nozzle cone mixing injector nozzle idol part amplification view.
Fig. 4 is a multi-cylinder synthetic type profit best fit double-plunger jet pump sectional view.
Fig. 5 is overhead monomer-type plunger hydraulic rocking arm transmission high pressure double-plunger jet pump---a biliquid sparger sectional view in short-term.
Fig. 6 is that Fig. 5 is along the 2-2 sectional view.
Fig. 7 is an overhead camshaft diesel engine broken section sketch.
Fig. 8 is an overhead camshaft cross link transmission principle schematic representation.
With reference to Fig. 1 and Fig. 2, diesel oil and aqueous rust preventive are that injector body (1) has fuel inlet fitting (A) and water supply connector (B) in the characteristics of sealed nozzle cone mixing sparger, and nut (2) is connected nozzle idol part (3) with injector body (1).Diesel oil and aqueous rust preventive can abbreviate the biliquid sparger as at sealed nozzle cone mixing sparger.With reference to Fig. 3, aqueous rust preventive enters from water hole shown in the dotted line (C), through matching gap arrival needle-valve (5) the lower end sealing cone of pintle valve seat (4) with needle-valve (5).Diesel oil oozes mixed from sealing cone oilhole (D) outflow with aqueous rust preventive from the center oilhole (E) that oilhole (F) enters through needle-valve (5).The epimere stopper rod (6) of splicing again after the boring is adopted in the processing of needle-valve (5) center oilhole.
With reference to Fig. 4, multi-cylinder synthetic type profit best fit double-plunger jet pump mainly becomes component such as (19) to be made up of outlet valve assembly (7), upper pump casing (8), pump water plunger coupled parts (9), shift fork with gear mechanism (10), grooved crossbeam (11), lower pump body (12), push rod (13), camshaft (14), roller (15), spring seat (16), spring (17), pump oil piston idol part (18) and outlet valve.Make pump water column plug and the rotation of pump oil piston regulate emitted dose with shift fork and gear mechanism (10).Pump water column plug diameter is less than pump oil piston diameter, and the pump water column is plugged with two control water skewed slots and the pump oil piston has only a highly big control oil skewed slot.Adopt the general structure of two plungers of a cam drive.Cam profile lift section two ends are tangent section (as Fig. 4 cam profile JI section and HG section) and middle be the lonely section in garden (as Fig. 4 cam profile IH section).The a small amount of water spray of collocation when the profit best fit is oil spout, water spraying time is longer, carries out the water spray second time after burning finishes.
With reference to Fig. 5 and Fig. 6, overhead monomer-type plunger hydraulic rocking arm transmission high pressure is the double-plunger jet pump in short-term---and the biliquid ejector applications is in adopting the overhead camshaft diesel engine.As when being applied to the lower arranging cam axle diesel engine, its driving mechanism can be imitated valve actuating gear, and difference is a straight type valve rocker to be changed angle type rocking arm get final product.This ejecting system characteristics are that hydraulic pump plunger idol part (20), oil hydraulic motor plunger coupled parts (21) and rocking arm (22) are side by side two parts; The hydraulic pump plunger effective pumping stroke of pump oil is very little and the effective pump water of hydraulic pump plunger pump water stroke is bigger; Mobile rocking arm central bearing point (23) changes emitted dose.Jet pump divides behind the jet pump pump housing (25) before the pump housing (24) and jet pump.The pump housing (25) directly is connected with screw with biliquid sparger (27) before the jet pump.Pump water column plug sleeve (26) and pump oil column plug sleeve (28) are with the plunger end clearance that seat (30) eliminates plunger bushing and check valve valve seat that is locked.In order to prevent that the peripheral oil pocket of plunger bushing from a plunger leakage of oil that is locked, is provided with seal washer (29).Because pump water column plug is different with two hydraulic pump plunger cylinder core distances of hydraulic system with pump oil piston cylinder core distance, thereby rocking arm (22) is oblique rocker structure.Pump water column plug and pump oil piston diameter are got the 3-5 millimeter, adopt the plunger scheme of the long stroke of little cylinder diameter.Owing to do not have high-pressure oil pipe and high-pressure water pipe, pump water column plug and pump oil piston diameter are very little again simultaneously, provide possibility for improving jet pressure.
With reference to Fig. 7, overhead monomer-type plunger hydraulic rocking arm transmission high pressure is the double-plunger jet pump in short-term---and biliquid jetting fluid device (31) is driven by overhead camshaft (32), and drives valve (34) by angle type rocking arm (33).Sparger mounting hole (35) is with the double-plunger jet pump---biliquid sparger (31) is in cylinder head the same side.With reference to Fig. 8, overhead camshaft cross link driving mechanism is made up of overhead camshaft crank (36), left connecting rod (37), right connecting rod (38), former Injection Pump timing gear (39), former lower arranging cam axle timing gear (40), intermediate drive gear (41) and crankshaft timing gear (42) etc.The cross link transmission is two double crank mechanisms, and two double crank mechanism upper dead center positions do not overlap, and lower dead point position does not overlap yet, thereby guarantees that the driving moment that is delivered to overhead camshaft from bent axle does not have zero dead point.Cross link mechanism has replaced the tappet and the push rod of valve actuating gear, has simplified complicated cylinder block and air cylinder head structure, and advantage is more.
Diesel oil of the present invention and aqueous rust preventive sealed nozzle cone mixing secondary water spray biliquid ejecting system and profit separately independently ejecting system compare, its advantage is to have simplified the diesel engine general structure, can needn't revise in the existing diesel agent structure this ejecting system is installed; Realization for spray internal water cooling direct spray type double fuel and the dual-purpose motor of single fuel provides possibility in addition.
Claims (6)
1, diesel oil of being made up of biliquid sparger and double-plunger jet pump and aqueous rust preventive be at sealed nozzle cone mixing secondary water spray biliquid ejecting system, it is characterized in that diesel oil and aqueous rust preventive ooze at needle-valve (5) the lower end sealing cone of nozzle idol part (3) to mix and with the plunger of a cam driven pump water plunger coupled parts (9) and the plunger of the even part of pump oil piston (18).
2, diesel oil according to claim 1 and aqueous rust preventive is characterized in that at sealed nozzle cone mixing secondary water spray biliquid ejecting system diesel oil oozes mixed from sealing cone oilhole (D) outflow with aqueous rust preventive through the center oilhole (E) of needle-valve (5).
3, diesel oil according to claim 1 and aqueous rust preventive be at sealed nozzle cone mixing secondary water spray biliquid ejecting system, and the plunger that it is characterized in that pump water plunger coupled parts (9) has two skewed slots and the plunger of pump oil piston idol part (18) has only a highly big skewed slot.
4, diesel oil according to claim 1 and aqueous rust preventive be at sealed nozzle cone mixing secondary water spray biliquid ejecting system, it is characterized in that cam profile lift section two ends are tangent section and middlely be the lonely section in garden.
5, diesel oil according to claim 1 and aqueous rust preventive is characterized in that overhead monomer-type plunger hydraulic rocking arm transmission high pressure double-plunger jet pump in short-term at sealed nozzle cone mixing secondary water spray biliquid ejecting system---the pump housing (25) directly is connected with screw with biliquid sparger (27) and adopts mobile rocking arm central bearing point (23) change emitted dose before the jet pump of biliquid sparger.
6, diesel oil according to claim 1 and aqueous rust preventive is characterized in that at sealed nozzle cone mixing secondary water spray biliquid ejecting system overhead camshaft crank (36) is connected transmission with former lower arranging cam axle timing gear (40) and former Injection Pump timing gear (39) respectively with left connecting rod (37) and right connecting rod (38).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99103773 CN1241682A (en) | 1999-04-08 | 1999-04-08 | Secondary liquid spraying system with sealed nozzle cone mixing diesel oil and rustproof liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99103773 CN1241682A (en) | 1999-04-08 | 1999-04-08 | Secondary liquid spraying system with sealed nozzle cone mixing diesel oil and rustproof liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1241682A true CN1241682A (en) | 2000-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99103773 Pending CN1241682A (en) | 1999-04-08 | 1999-04-08 | Secondary liquid spraying system with sealed nozzle cone mixing diesel oil and rustproof liquid |
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| CN (1) | CN1241682A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619657A (en) * | 2012-04-25 | 2012-08-01 | 第一拖拉机股份有限公司 | Three-time injection cam moulded line of electrical control unit pump fuel system |
| CN102734032A (en) * | 2012-06-19 | 2012-10-17 | 浙江大学 | High-pressure air-assisted fuel oil spray device |
-
1999
- 1999-04-08 CN CN 99103773 patent/CN1241682A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619657A (en) * | 2012-04-25 | 2012-08-01 | 第一拖拉机股份有限公司 | Three-time injection cam moulded line of electrical control unit pump fuel system |
| CN102734032A (en) * | 2012-06-19 | 2012-10-17 | 浙江大学 | High-pressure air-assisted fuel oil spray device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |