CN202483716U

CN202483716U - Dual-fuel outboard engine

Info

Publication number: CN202483716U
Application number: CN201220046149XU
Authority: CN
Inventors: 王军
Original assignee: Suzhou Parsun Power Machine Co Ltd
Current assignee: Suzhou Bai Sheng Power Machine Co Ltd By Shares
Priority date: 2012-02-14
Filing date: 2012-02-14
Publication date: 2012-10-10
Anticipated expiration: 2022-02-14

Abstract

The utility model relates to a dual-fuel outboard engine which is characterized by comprising a crankshaft box body, a carburetor, a float chamber, a gasoline and fuel oil tank, a gasoline and fuel oil pipe, a gasoline pump, a kerosene and fuel oil tank, a kerosene and fuel oil pipe and a kerosene pump, wherein the crankshaft box body is connected and communicated with the carburetor which is provided with the float chamber, and a main jet is arranged in the float chamber which is communicated with the carburetor through the main jet. The gasoline and fuel oil tank is connected with the carburetor through the gasoline and fuel oil pipe which is provided with the gasoline pump. The kerosene and fuel oil tank is connected with the carburetor through the kerosene and fuel oil pipe which is provided with the kerosene pump. The dual-fuel outboard engine uses gasoline when started or in idling and uses kerosene when operating normally, and due to the fact that the price of kerosene is lower than that of gasoline, operation cost of the outboard engine is reduced. Simultaneously, the dual-fuel outboard engine is reasonable in structure and effectively solves the problem of fuel conversion between gasoline and kerosene in idling and high-speed operation.

Description

A kind of double fuel outboard machine

Technical field

The utility model relates to a kind of outboard machine, and particularly a kind of double fuel outboard machine belongs to the outboard machine technical field.

Background technique

At present, the military boat of charging, speedboat, civilian small-sized ship etc. all are employed in the hull rear end and establish outboard promotion equipment, abbreviate outboard machine as; This machine is structure as a whole; The upper end is fuel tank and motor and operating stem, and the lower end is for advancing propeller, and this machine is positioned at hull rear end outboard and is axially connected with the side of a ship.Traditional outboard machine is fuel with diesel oil; The operating cost of diesel outboard engine is cheap; But noise and stream pollution are serious; So two/four-stroke gasoline outboard machine just occurred, but along with reasons such as the rise of gasoline expense and worsening shortages, the outboard machine that can reduce operating cost of designing a kind of many fuel is imperative.

Summary of the invention

The utility model purpose is for the deficiency that overcomes existing technology a kind of double fuel outboard machine that can reduce operating cost to be provided.

For achieving the above object, the technological scheme that the utility model adopts is: a kind of double fuel outboard machine comprises crankcase body, Carburetor, float chamber, gasoline fuel tank, gasoline fuel pipe, petrol pump, kerosene fuel tank, kerosene fuel pipe, kerosene pump; Said crankcase body links to each other with Carburetor and communicates; Said Carburetor is provided with float chamber; Be provided with main jet in the said float chamber; Said float chamber communicates with Carburetor through main jet; Said gasoline fuel tank links to each other with Carburetor through the gasoline fuel pipe; Said gasoline fuel pipe is provided with petrol pump; Said kerosene fuel tank links to each other with float chamber through the kerosene fuel pipe; Said kerosene fuel pipe is provided with the kerosene pump; Gasoline in the said gasoline fuel tank gets into Carburetor through petrol pump through the gasoline fuel pipe, gets into crankcase body at last; Kerosene in the said kerosene fuel tank gets into float chamber through the kerosene pump through the kerosene fuel pipe, getting into Carburetor through main jet, gets into crankcase body at last.

Preferably, also be provided with the one-way valve I on the said gasoline fuel pipe; Said gasoline fuel pipe and Carburetor joint are provided with petrol jet; Be provided with throttle valve near the petrol jet place in the said Carburetor; Said kerosene fuel pipe is provided with the one-way valve II; Said kerosene fuel pipe and float chamber joint are provided with needle-valve; Said float chamber is provided with the main jet pipe with the Carburetor place of communicating; Said main jet pipe is arranged in the main jet.

Preferably, said float chamber also is provided with float, in order to the height of kerosene in the control float chamber.

Preferably, the air inlet place of said Carburetor is provided with chock plate.

Preferably, said one-way valve II is fixed on the crankcase body.

Preferably, said petrol pump is a gasoline hand pump; Said kerosene pump is manual kerosene pump.

Because the utilization of technique scheme, the utility model compared with prior art has advantage:

The double fuel outboard machine of the utility model uses gasoline when outboard machine startup and idling, use kerosene when normally moving, because the price of kerosene is more much lower than the price of gasoline, has reduced the operating cost of outboard machine; Simultaneously, the utility model is rational in infrastructure, has effectively solved gasoline and the conversion of the fuel between the kerosene between outboard machine idling and the high speed.

Description of drawings

Below in conjunction with accompanying drawing the utility model technological scheme is described further:

Accompanying drawing 1 is the structural representation of the double fuel outboard machine of the utility model;

Accompanying drawing 2 is startup and the schematic representation of idling mode of the double fuel outboard machine of the utility model;

Accompanying drawing 3 is the schematic representation of normal operating condition of the double fuel outboard machine of the utility model;

Wherein: 1, crankcase body; 2, Carburetor; 3, float chamber; 4, gasoline fuel tank; 5, gasoline fuel pipe; 6, petrol pump; 7, kerosene fuel tank; 8, kerosene fuel pipe; 9, kerosene pump; 10, main jet; 11, one-way valve I; 12, petrol jet; 13, throttle valve; 14, one-way valve II; 15, needle-valve; 16, main jet pipe; 17, float; 18, chock plate; 19, gasoline; 20, kerosene; 21, air.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.

The described a kind of double fuel outboard machine of the utility model shown in accompanying drawing 1 comprises crankcase body 1, Carburetor 2, float chamber 3, gasoline fuel tank 4, gasoline fuel pipe 5, petrol pump 6, kerosene fuel tank 7, kerosene fuel pipe 8, kerosene pump 9; Said crankcase body 1 links to each other with Carburetor 2 and communicates; Said Carburetor 2 is provided with float chamber 3; Be provided with main jet 10 in the said float chamber 3; Said float chamber 3 communicates with Carburetor 2 through main jet 10; Said gasoline fuel tank 4 links to each other with Carburetor 2 through gasoline fuel pipe 5; Said gasoline fuel pipe 5 is provided with petrol pump 6; Said kerosene fuel tank 7 links to each other with float chamber 3 through kerosene fuel pipe 8; Said kerosene fuel pipe 8 is provided with kerosene pump 9; Gasoline 19 in the said gasoline fuel tank 4 gets into Carburetor 2 through petrol pump 6 through gasoline fuel pipe 5, gets into crankcase body 1 at last; Kerosene 20 in the said kerosene fuel tank 7 gets into float chamber 3 through kerosene pump 9 through kerosene fuel pipe 8, getting into Carburetor 2 through main jet 10, gets into crankcase body 1 at last; Also be provided with one-way valve I 11 on the said gasoline fuel pipe 5; Said gasoline fuel pipe 5 is provided with petrol jet 12 with Carburetor 2 joints; Be provided with throttle valve 13 near petrol jet 12 places in the said Carburetor 2; Said kerosene fuel pipe 8 is provided with one-way valve II 14; Said kerosene fuel pipe 8 is provided with needle-valve 15 with float chamber 3 joints; Said float chamber 3 is provided with main jet pipe 16 with Carburetor 2 places of communicating; Said main jet pipe 16 is arranged in the main jet 10; Said float chamber 3 also is provided with float 17, in order to the height of kerosene in the control float chamber 3; The air inlet place of said Carburetor 2 is provided with chock plate 18; Said one-way valve II 14 is fixed on the crankcase body 1; Said petrol pump 5 is a gasoline hand pump; Said kerosene pump 9 is manual kerosene pump.

Outboard machine is at prestart, and the operator presses manual kerosene pump several, and kerosene 19 gets in the float chambers 3 through kerosene fuel pipe 8 from kerosene fuel tank 7, and the kerosene 20 that gets in the float chamber 3 is controlled by float 17 and needle-valve 15, and keeps certain liquid level height.The operator presses manual gasoline oil pump for several times again; At this moment the gasoline 19 in the gasoline fuel tank 4 gets in the Carburetor 2 through gasoline fuel pipe 5 and gasoline jet pipe 12; Owing to ending of one-way valve I 11, make gasoline 20 can not turn back to gasoline fuel tank 4 from outflow in the gasoline jet pipe 12.

The described a kind of double fuel outboard machine of the utility model shown in accompanying drawing 2; The operator pulls or drives engine crankshaft by actuating motor and turns round during starting; According to the engine operation principle, the to-and-fro motion of piston makes crankcase body 1 produce negative pressure, makes extraneous air 21 can get into Carburetor 2.Because the throttle valve 13 in when starting Carburetor 2 is in closed condition basically, only stay and gasoline jet pipe 12 between very little gap, this moment, extraneous air 21 can only be through this close gap entering because the suction function in the crankcase body 1.Because the gap is very little, pressure is just very high, makes gasoline in the gasoline jet pipe 12 by the air sucking-off, and mixes the inflammable mixture of mist formation attitude with air 21, simultaneously because the aperture of gasoline jet pipe 12 is very little, feasible by the gasoline 19 of sucking-off in controlled scope.And prestart has had part gasoline 19 to be pumped in the Carburetor 2, makes outboard machine be easy to starting, and keeps idle running.

The described a kind of double fuel outboard machine of the utility model shown in accompanying drawing 3; After the outboard machine starting; Get into the high speed normal operation, the operator opens the throttle, and both throttle valve 13 was opened in the Carburetor 2; At this moment a large amount of air 21 get into Carburetor 2 and on the main jet pipe 12 of Carburetor 2, form negative pressure, so the kerosene 20 in the float chamber 3 mixes the inflammable mixture of mist formation attitude through main jet 10 and main jet pipe 16 by the negative pressure sucking-off and with air 21.Kerosene pump 9 pumps into the kerosene in the kerosene stock case 7 20 in the float chamber 3 under crankcase body 1 action of negative pressure, because kerosene 20 is made that by float 17 and needle-valve 15 controls kerosene 20 liquid levels in the float chamber 3 remain certain height.The entering of the inflammable mixture of a large amount of kerosene 20 and air 21 makes the outboard function move at a high speed and stably.And because the opening of throttle valve 12, the negative pressure 12 mouthfuls of gasoline jet pipes has diminished originally, makes that gasoline 19 can not be again by sucking-off.Get into the inflammable mixture of just kerosene 20 and air 21 in the crankcase body 1 like this.

Below only be the concrete exemplary applications of the utility model, the protection domain of the utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, all drop within the utility model rights protection scope.

Claims

1. a double fuel outboard machine is characterized in that: comprise crankcase body, Carburetor, float chamber, gasoline fuel tank, gasoline fuel pipe, petrol pump, kerosene fuel tank, kerosene fuel pipe, kerosene pump; Said crankcase body links to each other with Carburetor and communicates; Said Carburetor is provided with float chamber; Be provided with main jet in the said float chamber; Said float chamber communicates with Carburetor through main jet; Said gasoline fuel tank links to each other with Carburetor through the gasoline fuel pipe; Said gasoline fuel pipe is provided with petrol pump; Said kerosene fuel tank links to each other with float chamber through the kerosene fuel pipe; Said kerosene fuel pipe is provided with the kerosene pump; Gasoline in the said gasoline fuel tank gets into Carburetor through petrol pump through the gasoline fuel pipe, gets into crankcase body at last; Kerosene in the said kerosene fuel tank gets into float chamber through the kerosene pump through the kerosene fuel pipe, getting into Carburetor through main jet, gets into crankcase body at last.

2. double fuel outboard machine according to claim 1 is characterized in that: also be provided with the one-way valve I on the said gasoline fuel pipe; Said gasoline fuel pipe and Carburetor joint are provided with petrol jet; Be provided with throttle valve near the petrol jet place in the said Carburetor; Said kerosene fuel pipe is provided with the one-way valve II; Said kerosene fuel pipe and float chamber joint are provided with needle-valve; Said float chamber is provided with the main jet pipe with the Carburetor place of communicating; Said main jet pipe is arranged in the main jet.

3. double fuel outboard machine according to claim 1 and 2 is characterized in that: said float chamber also is provided with float, in order to the height of kerosene in the control float chamber.

4. double fuel outboard machine according to claim 1 and 2 is characterized in that: the air inlet place of said Carburetor is provided with chock plate.

5. double fuel outboard machine according to claim 2 is characterized in that: said one-way valve II is fixed on the crankcase body.

6. double fuel outboard machine according to claim 1 is characterized in that: said petrol pump is a gasoline hand pump; Said kerosene pump is manual kerosene pump.