CN2763556Y - Fuel preheater for diesel engine - Google Patents

Fuel preheater for diesel engine Download PDF

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Publication number
CN2763556Y
CN2763556Y CN 200520023470 CN200520023470U CN2763556Y CN 2763556 Y CN2763556 Y CN 2763556Y CN 200520023470 CN200520023470 CN 200520023470 CN 200520023470 U CN200520023470 U CN 200520023470U CN 2763556 Y CN2763556 Y CN 2763556Y
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China
Prior art keywords
oil
fuel
pipe
preheating
oil pipe
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Expired - Fee Related
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CN 200520023470
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Chinese (zh)
Inventor
张立强
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Individual
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Individual
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Priority to CN 200520023470 priority Critical patent/CN2763556Y/en
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Abstract

The utility model discloses a fuel preheater for diesel oil engines, which comprises a preheating tank body and a main oil pipe used for connecting an oil injection pump, wherein one section of the main oil pipe is bent into a snake shape and is arranged in the preheating tank body, and one side of the preheating tank body is respectively provided with a water inlet pipe and a water outlet pipe. The input end of the main oil pipe is provided with a fuel change-over switch, and the other end of the fuel change-over switch is provided with two oil pipes which are used for connecting a main oil tank and an auxiliary oil tank. The main oil pipe is changed over respectively with a configured oil tank with a high mark number and a configured oil tank with a low mark number to supply fuel by controlling the fuel change-over switch. The utility model has the advantages of simple structure, easy operation and capability of effectively reducing the use cost.

Description

The diesel engine fuel-firing preheating device
Technical field
The utility model relates to a kind of fuel-firing preheating device, relates to a kind of diesel engine fuel-firing preheating device that is used for specifically.
Background technique
At present, existing disclosed diesel car cold-starting Preheating unit, it mainly is to have adopted to be provided with the firing chamber in the boiler, an end that is positioned at the firing chamber is provided with metering-orifice formula spontaneous combustion push-type lubricating fitting and heater plug, connect gerotor pump by oil pipe, and spark plug is installed on the firing chamber is connected to high-tension coil and constitutes.Pass through gerotor pump, diesel oil by after the heater plug heating, pass to metering-orifice formula spontaneous combustion push-type lubricating fitting, diesel oil is sprayed into the firing chamber of pre-heating system, by spark ignitor starting pre-heating system, cooling liquid in the pre-heating system is heated in-engine cooling liquid by natural pressure, reach the purpose of piloting engine.Because this Preheating unit is to adopt gerotor pump and metering-orifice or natural pressure oil nozzle, the condition of carrying earlier of its work is can light behind the diesel oil preheating, the problem of gerotor pump be because of the greasy property of diesel oil poor, easily cause the rotor of oil pump or the wearing and tearing between gear, make it the underpressure of diesel oil, especially nozzle under low-temperature condition, the oil atomizing poor performance, cause bad starting of pre-heating system or fail to start, and working life is short.On the other hand, it is the mode that adopts natural circulation, is with after the heating in the cooling hydraulic pressure boiler of motor, natural circulation in motor, cold and hot exchange weak effect.Again on the one hand, the Preheating unit complex structure, this diesel engine also need adopt-10 #Above fuel oil causes diesel engine fuel oil user cost height.
The model utility content
The purpose of this utility model is for solving the problem that above-mentioned technology exists, and provides a kind of simple in structure that the diesel engine fuel-firing preheating device of different labels fuel oil is used in diesel engine starting and normal operation.
For achieving the above object, technical solution of the present utility model is achieved like this: a kind of diesel engine fuel-firing preheating device, comprise the preheater casing and be used to connect the main oil pipe of Injection Pump, described main oil pipe is bent into snakelike shape body for one section, and be arranged in the preheating casing, this preheating casing one side is respectively equipped with intake pipe and outlet pipe; Input end at main oil pipe is provided with a fuel oil diverter switch, and the described fuel oil diverter switch the other end is provided with the oil pipe that two-way is used to connect auxiliary tank and main fuel tank.Starting auxiliary tank in this preheater is equipped with high grade-10 #Diesel oil; Main fuel tank is equipped with low grade 0# diesel oil.When this preheater cold-starting, switch the auxiliary tank that switches on by fuel oil, fuel oil is lighted starting by preheating casing oil pipe to Injection Pump for motor.After the ignition start, be transferred to the main oil pipe road, make the low grade 0 in the main fuel tank by the fuel oil diverter switch #Fuel oil burns for diesel engine work by the preheater preheating.Thereby reduced the user cost of fuel oil.
As mentioned above, it is a circular shell that this fuel oil switches shape, is respectively equipped with two on it and switches oil outlets and an oil inlet hole, by bearing pin is hinged a Three-way rotary valve is set in this circular shell, is provided with controlling rod by the external part of bearing pin.By the pulling controlling rod, its Three-way rotary valve is rotated, an oil inlet hole of this valve switches the connection master respectively, a pair oil pipe is communicated with master, auxiliary tank, thus one of them oil outlet of conducting Three-way rotary valve is communicated with main oil pipe, switches use to guarantee the different labels fuel oil.
As mentioned above, in this preheating casing, be provided with the dividing plate that is staggered and installs.Make and be separated into some unit that are connected in its casing,, thereby guarantee the long preheating of oil pipe, prevented that effectively fuel oil from playing wax and causing the flame-out of motor in order to the flow process of high-temperature water in director's casing.
Diesel engine fuel-firing preheating device of the present utility model, overall construction design is simple, on the one hand, has adopted a preheating cabinet to guarantee to use the low grade fuel oil, reduces user cost; On the other hand, a high and low fuel oil diverter switch is installed, and is connected an auxiliary tank at the fuel feeding end of main oil pipe.Therefore, when only needing ignition start, adopt-10 #Fuel oil; After starting, convert low grade 0# fuel delivery motor to by switching valve and use.Thereby when having realized the diesel engine proper functioning, use low-grade fuel oil also can not stop working and reduce the purpose of engine power.
Description of drawings
Fig. 1 is this novel structural representation.
Fig. 2 is Fig. 1 fuel oil Switch structure view.
Embodiment
Below in conjunction with accompanying drawing embodiment, to this novel being further described.
By the diesel engine fuel-firing preheating device shown in Fig. 1,2, comprise a preheating casing 1, one section main oil pipe 3 that is bent into snakelike shape is installed in it.Side at its preheating casing 1 is respectively equipped with intake pipe 5 that is connected to the warm-air drier outlet end and the outlet pipe 4 that is connected motor backwater end.This thermal source is to utilize engine cycles water to do thermal source.For guarantee prolonging the warm that main oil pipe 3 that this preheating casing 1 places obtains long stroke, and by being provided with the staggered dividing plate 2 of plurality of rows in the casing.This dividing plate 2 makes and is divided into some preheating unit chambeies that are interconnected in its casing.Fuel feeding end at this main oil pipe 3 is provided with a fuel oil diverter switch 10, and oil pipe 3 is connected with the oil transportation end of fuel oil diverter switch 10.Oil inlet end on this fuel oil diverter switch 10 is respectively applied for auxiliary tank and a low-grade main fuel tank of connecting a high grade by oil pipe 12 and 13.
Described fuel oil diverter switch 10 is to adopt a circular shell 22, radially is respectively equipped with two switching oil inlet holes 15 and 16 in the same side at it.This oil inlet hole 15 is used to connect the oil pipe of paying of high grade fuel oil; And another oil inlet hole 16 is used to connect the main fuel tank of low grade fuel oil.Circular shell 22 opposite sides radially establish an oil outlet 19, be used to connect main oil pipe 3.In this circular shell 22, the bearing pin that is provided with by the center 21 is hinged to be provided with a Three-way rotary valve 14.The affixed controlling rod 11 of the external part of this bearing pin 21, when making it controlling rod 11 suitable, contrary pendulum, the rotation of may command Three-way rotary valve 14.There is an oil-feed valve opening 17 identical on this Three-way rotary valve 14 with two that intersect fuel-displaced valve openings 18 and 20.
This fuel oil diverter switch 10 connects a backguy 7 by an end of the controlling rod on it 11.The support 8 that is provided with on the preheating casing 1 is passed in this backguy 7, in the backguy 7 between controlling rod 11 and the support 8 Returnning spring 9 is housed.Utilize the dop 6 of this backguy control end to cooperate with the clip installation of configuration in the operator cabin.When switching fuel oil, when piloting engine, pulling backguy 7, rotate by acting on controlling rod 11 up times, at this moment, the Three-way rotary valve 14 in this fuel oil diverter switch 10 makes its valve body enter hole 17 by oil inlet hole 15 and 12 conductings of high grade oil pipe, and the fuel-displaced valve opening 20 of rotary valve provides-starting of 10# fuel oil by oil outlet 19 and main oil pipe 3 conductings.After the engine start preheating, unclamp location backguy 7, this controlling rod 11 rotated in the inverse time that acts on of Returnning spring 9, the oil inlet hole 17 of controlling Three-way rotary valve 14 simultaneously is by oil inlet hole 16 and the conducting of low grade oil pipe, and the oil outlet 18 of Three-way rotary valve 14 provides motor positive common oil by oil outlet 19 and main oil pipe 3 conductings.

Claims (3)

1, a kind of diesel engine fuel-firing preheating device, comprise the preheater casing and be used to connect the main oil pipe of Injection Pump, it is characterized in that described main oil pipe is bent into snakelike shape body for (3) one sections, and be arranged in the preheating casing (1), this preheating casing (1) one side is respectively equipped with intake pipe (5) and outlet pipe (4); Input end at main oil pipe (3) is provided with a fuel oil diverter switch (10), and described fuel oil diverter switch (10) the other end is provided with the oil pipe (12,13) that two-way is used to connect auxiliary tank and main fuel tank.
2, by the described diesel engine fuel-firing preheating device of claim 1, it is characterized in that described fuel oil diverter switch (10) is a circular shell (22), it radially is respectively equipped with two and switches an oil inlet hole (15,16) and an oil outlet (19), in this circular shell (22), by the hinged Three-way rotary valve (14) that is provided with of bearing pin (21), be provided with a controlling rod (11) along bearing pin (21) external part.
3, by the described diesel engine fuel-firing preheating device of claim 1, it is characterized in that in described preheating casing (1), being provided with staggered dividing plate (2).
CN 200520023470 2005-02-01 2005-02-01 Fuel preheater for diesel engine Expired - Fee Related CN2763556Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520023470 CN2763556Y (en) 2005-02-01 2005-02-01 Fuel preheater for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520023470 CN2763556Y (en) 2005-02-01 2005-02-01 Fuel preheater for diesel engine

Publications (1)

Publication Number Publication Date
CN2763556Y true CN2763556Y (en) 2006-03-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520023470 Expired - Fee Related CN2763556Y (en) 2005-02-01 2005-02-01 Fuel preheater for diesel engine

Country Status (1)

Country Link
CN (1) CN2763556Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102052208A (en) * 2011-01-17 2011-05-11 朱成恩 Fuel economizer and diesel circulation heat exchange system applying fuel economizer
CN102774912A (en) * 2012-07-20 2012-11-14 陈银轩 Water preheating device for water ejection separator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102052208A (en) * 2011-01-17 2011-05-11 朱成恩 Fuel economizer and diesel circulation heat exchange system applying fuel economizer
CN102774912A (en) * 2012-07-20 2012-11-14 陈银轩 Water preheating device for water ejection separator

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20060308