CN201972795U - Dual-fuel supply system control device of marine engine - Google Patents
Dual-fuel supply system control device of marine engine Download PDFInfo
- Publication number
- CN201972795U CN201972795U CN2011200346340U CN201120034634U CN201972795U CN 201972795 U CN201972795 U CN 201972795U CN 2011200346340 U CN2011200346340 U CN 2011200346340U CN 201120034634 U CN201120034634 U CN 201120034634U CN 201972795 U CN201972795 U CN 201972795U
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- China
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- eccentric wheel
- spring
- valve seat
- push rod
- tappet
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- 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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Abstract
A dual-fuel supply system control device of a marine engine comprises a natural gas supply control mechanism and a diesel supply control mechanism. The natural gas supply control mechanism mainly comprises a first stepping motor, a first eccentric wheel, a conical valve seat, a conical valve spool, a spring seat, a tappet, an ejector rod, an ejector rod spring and the like, wherein the first stepping motor and the first eccentric wheel are mounted on the outer wall of a valve seat and in an inner cavity of the valve seat respectively, the conical valve seat and the conical valve spool are mounted in an inner cavity of a valve, the spring seat is mounted between the valve seat and the valve, the ejector rod spring is sleeved onto the ejector rod, and the first eccentric wheel is tightly abutted to the tappet under pretightening force of the spring. The diesel supply control mechanism mainly comprises a second stepping motor, a second eccentric wheel, an eccentric wheel swing rod, a connecting rod, a guide frame, an oil pump rack, a return spring and the like, wherein the return spring is sleeved onto the connecting rod, and the second eccentric wheel is tightly abutted to an operating roller on the eccentric wheel swing rod under pretightening force of the spring. The dual-fuel supply system control device can be used for precision control of diesel and natural supply so as to achieve best gas-oil ratio and a whole-course speed regulating function of the marine engine.
Description
Technical field
The utility model relates to the engine fuel supply system, refers to a kind of marine engine dual fuel supply system control gear that rock gas and two kinds of fuel of diesel oil are provided particularly.
Background technique
Rock gas is the gaseous fuel based on methane, and its molecular weight is less than normal, and the H/C value is up to about 4.Because rock gas is all gaseous state during with air mixing in motor, compare with diesel oil its mixed gas more even, the burning more complete, diesel engine is mixed and is burnt the carbon smoke exhaust that compressed natural gas can reduce diesel engine significantly like this, reduce the pollution of diesel engine, can also improve the fuel structure of diesel engine simultaneously atmosphere environment.Therefore, diesel oil is mixed the motor that burns compressed natural gas and has been obtained using comparatively widely.
At present, diesel oil mix burn compressed natural gas relevant apparatus normally at the diesel engine for automobile design, and diesel engine for automobile all adopts the two-stage type speed regulator, the two-stage type speed regulator only just works when diesel engine is lower than idling or is higher than rated speed, when diesel engine speed circle is between idling and rated speed, the two-stage type speed regulator is then inoperative, can directly control the fuel feed of diesel engine by gas pedal.And marine diesel engine is different with diesel engine for automobile, employing be variable-speed governor.Marine diesel engine is by the rotating speed of power control pull bar control diesel engine, and when motionless and load diesel engine of power control pull bar changes or fluctuates, variable-speed governor will increase and decrease the delivery volume of diesel oil automatically, make diesel engine speed keep stable.How diesel oil and rock gas delivery volume are accurately controlled, with the best oil gas of realizing the double fuel marine engine when the full distance speed regulating function, reach best mixing and burn effect, make marine engine have good power performance and economic performance, be the difficult problem that those skilled in the art attempt to solve always.
Summary of the invention
The purpose of this utility model is exactly that a kind of marine engine dual fuel supply system control gear that diesel oil and rock gas delivery volume are accurately controlled will be provided, with the best oil gas of realizing marine engine full distance speed regulating function when.
For achieving the above object, the marine engine dual fuel supply system control gear that the utility model is designed comprises that rock gas is supplied with control mechanism and diesel oil is supplied with control mechanism.Described rock gas supply with control mechanism comprise be installed on the valve seat outer wall respectively and inner chamber in first stepper motor and first eccentric wheel, be installed in the conical surface valve seat in the body cavity and the conical surface spool that matches with it and push rod and push rod spring.Described valve seat links to each other by spring seat with valve body, and first stepper motor on the valve seat outer wall links to each other with first eccentric wheel by output shaft, and two chambeies of being separated by conical surface spool in the valve body are respectively arranged with suction tude and steam outlet pipe.Push rod runs through spring seat, and the end that push rod stretches in the valve seat links to each other with tappet, and tappet matches with the first eccentric working surface.The end that push rod stretches in the valve body links to each other with conical surface spool.Push rod spring is sleeved on the push rod between tappet and the spring seat, and its pretightening force makes first eccentric wheel and the tight butt of tappet.
Described diesel oil is supplied with control mechanism and is comprised second stepper motor, second eccentric wheel, eccentric wheel oscillating rod, connecting rod, pump rack and Returnning spring.Described second stepper motor links to each other with second eccentric wheel by output shaft, eccentric wheel oscillating rod is provided with the working roller that matches with the second eccentric working surface, one end of eccentric wheel oscillating rod is fixedly hinged, one end of the other end of eccentric wheel oscillating rod and connecting rod is hinged, and the other end of connecting rod passes leading truck fixedlys connected with pump rack; Reseting spring sleeve is contained on the connecting rod between pump rack and the leading truck, and its pretightening force makes the tight butt of the working roller on second eccentric wheel and the eccentric wheel oscillating rod.
Further,, by bearing pin working sheave is installed on the described tappet, described working sheave and the tight butt of first eccentric wheel in order to reduce kinetic friction.
Again further, for guaranteeing the slip precision of tappet and push rod, described tappet periphery is provided with guide sleeve, and described guide sleeve is installed in the push rod penetrating via of valve seat.
Further, described second eccentric working surface one side is provided with the eccentric wheel displacement transducer, and a side of described pump rack is provided with the pump rack displacement transducer, is used for monitoring the displacement amount of second eccentric wheel and pump rack.
Advantage of the present utility model is: designed marine engine dual fuel supply system control gear can be by the sampling analysis to diesel engine speed, judge and send the instruction of increase and decrease fuel quantity, drive eccentric rotation respectively by two relatively independent stepper motors and realize accurate control diesel oil and rock gas, be easy to realize preferable oil-gas ratio, reach the best burning effect of mixing.Thereby realize the speed-regulating function identical, make marine engine have good power performance and economic performance with variable-speed governor.Can reduce simultaneously the diesel engine carbon black discharging significantly, reduce pollution atmosphere.
Description of drawings
Fig. 1 is the main sectional structure schematic representation that the rock gas of marine engine dual fuel supply system control gear of the present utility model is supplied with control mechanism.
Fig. 2 is the left sectional structure schematic representation of Fig. 1.
Fig. 3 is the structural representation that the diesel oil of marine engine dual fuel supply system control gear of the present utility model is supplied with control mechanism.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Marine engine dual fuel supply system control gear of the present utility model comprises that rock gas is supplied with control mechanism and diesel oil is supplied with control mechanism.
Rock gas is supplied with control mechanism as depicted in figs. 1 and 2, it comprise be installed on valve seat 10 outer walls respectively and inner chamber in first stepper motor 14 and first eccentric wheel 1, be installed in the conical surface valve seat 5 in valve body 11 inner chambers and the conical surface spool 7 that matches with it and push rod 4 and push rod spring 3.Valve seat 10 links to each other by spring seat 13 with valve body 11, and first stepper motor 14 on valve seat 10 outer walls links to each other with first eccentric wheel 1 by output shaft.Two chambeies of being separated by conical surface spool 7 in the valve body 11 are respectively arranged with suction tude 6 and steam outlet pipe 8.Push rod 4 runs through spring seat 13, and the end that push rod 4 stretches in the valve seat 10 links to each other with tappet 15, and the end that push rod 4 stretches in the valve body 11 links to each other with conical surface spool 7.Tappet 15 peripheries are provided with guide sleeve 16, and guide sleeve 16 is installed in the push rod penetrating via of valve seat 10.By bearing pin 12 working sheave 2 is installed on the tappet 15, working sheave 2 matches with the working surface of first eccentric wheel 1.Push rod spring 3 is sleeved on the push rod 4 between tappet 15 and the spring seat 13, and its pretightening force makes first eccentric wheel 1 and working sheave 2 tight butts.
It is as follows that rock gas is supplied with the control mechanism basic functional principle: drive first eccentric wheel 1 by first stepper motor 14 and rotate, first eccentric wheel 1 pushes working sheave 2, working sheave 2 promotes push rod 4, and the pretightening force that overcomes push rod spring 3 makes conical surface spool 7 leave with it the conical surface valve seat 5 that cooperates, and flowed into the amount of natural gas of steam outlet pipes 8 by suction tude 6 by the variation control of break-make face.
Diesel oil is supplied with control mechanism as shown in Figure 3, and it comprises second stepper motor 18, second eccentric wheel 19, eccentric wheel oscillating rod 25, connecting rod 24, pump rack 21 and Returnning spring 22.Second stepper motor 18 links to each other with second eccentric wheel 19 by output shaft, and eccentric wheel oscillating rod 25 is provided with the working roller 25a that matches with the working surface of second eccentric wheel 19.One end of eccentric wheel oscillating rod 25 is fixedly hinged, and an end of the other end of eccentric wheel oscillating rod 25 and connecting rod 24 is hinged.The other end of connecting rod 24 passes leading truck 26 fixedlys connected with pump rack 21.Returnning spring 22 is sleeved on the connecting rod 24 between pump rack 21 and the leading truck 26, and its pretightening force makes the tight butt of working roller 25a on second eccentric wheel 19 and the eccentric wheel oscillating rod 25.Working surface one side of second eccentric wheel 19 is provided with eccentric wheel displacement transducer 20.One side of pump rack 21 is provided with pump rack displacement transducer 23.
It is as follows that diesel oil is supplied with the control mechanism basic functional principle: drive 19 rotations of second eccentric wheel by second stepper motor 18, second eccentric wheel 19 pushes the working roller 25a of eccentric wheel oscillating rod 25, eccentric wheel oscillating rod 25 is rotated around fixed support, order about connecting rod 24 drive pump racks 21 and move to regulate the diesel oil amount.Pump rack displacement transducer 23 and eccentric wheel displacement transducer 20 are used for monitoring the displacement amount of pump rack 21 and eccentric wheel 19 respectively.
When diesel engine is mixed the burning compressed natural gas, post-decompression rock gas enters in the aditus laryngis mixer that is installed on the diesel engine intake pipeline by the natural gas flow adjustable valve, diesel engine is mixed the delivery volume of burning rock gas can reach best oil-gas ratio according to default with the variation of rotating speed and load, when changing diesel load, oil, tolerance synchronous change.The utility model is suitable for boat diesel engine, has omnidistance formula speed-regulating function.
Claims (5)
1. a marine engine dual fuel supply system control gear comprises that rock gas is supplied with control mechanism and diesel oil is supplied with control mechanism, it is characterized in that:
Described rock gas supply with control mechanism comprise be installed on valve seat (10) outer wall respectively and inner chamber in first stepper motor (14) and first eccentric wheel (1), be installed in the conical surface valve seat (5) in valve body (11) inner chamber and the conical surface spool (7) that matches with it and push rod (4) and push rod spring (3); Described valve seat (10) links to each other by spring seat (13) with valve body (11), first stepper motor (14) on valve seat (10) outer wall links to each other with first eccentric wheel (1) by output shaft, and two chambeies of being separated by conical surface spool (7) in the valve body (11) are respectively arranged with suction tude (6) and steam outlet pipe (8); Push rod (4) runs through spring seat (13), and the end that push rod (4) stretches in the valve seat (10) links to each other with tappet (15), and tappet (15) matches with the working surface of first eccentric wheel (1), and the end that push rod (4) stretches in the valve body (11) links to each other with conical surface spool (7); Push rod spring (3) is sleeved on the push rod (4) that is positioned between tappet (15) and the spring seat (13), and its pretightening force makes the tight butt of first eccentric wheel (1) and tappet (15);
Described diesel oil is supplied with control mechanism and is comprised second stepper motor (18), second eccentric wheel (19), eccentric wheel oscillating rod (25), connecting rod (24), pump rack (21) and Returnning spring (22); Described second stepper motor (18) links to each other with second eccentric wheel (19) by output shaft; Eccentric wheel oscillating rod (25) is provided with the working roller (25a) that matches with the working surface of second eccentric wheel (19), one end of eccentric wheel oscillating rod (25) is fixedly hinged, one end of the other end of eccentric wheel oscillating rod (25) and connecting rod (24) is hinged, and the other end of connecting rod (24) passes leading truck (26) fixedlys connected with pump rack (21); Returnning spring (22) is sleeved on the connecting rod (24) that is positioned between pump rack (21) and the leading truck (26), and its pretightening force makes the tight butt of the working roller (25a) on second eccentric wheel (19) and the eccentric wheel oscillating rod (25).
2. marine engine dual fuel supply system control gear according to claim 1 is characterized in that: described tappet (15) is gone up and by bearing pin (12) working sheave (2) is installed, described working sheave (2) and the tight butt of first eccentric wheel (1).
3. marine engine dual fuel supply system control gear according to claim 1 and 2 is characterized in that: described tappet (15) periphery is provided with guide sleeve (16), and described guide sleeve (16) is installed in the push rod penetrating via of valve seat (10).
4. marine engine dual fuel supply system control gear according to claim 1 and 2, it is characterized in that: working surface one side of described second eccentric wheel (19) is provided with eccentric wheel displacement transducer (20), and a side of described pump rack (21) is provided with pump rack displacement transducer (23).
5. marine engine dual fuel supply system control gear according to claim 3, it is characterized in that: working surface one side of described second eccentric wheel (19) is provided with eccentric wheel displacement transducer (20), and a side of described pump rack (21) is provided with pump rack displacement transducer (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200346340U CN201972795U (en) | 2011-01-31 | 2011-01-31 | Dual-fuel supply system control device of marine engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200346340U CN201972795U (en) | 2011-01-31 | 2011-01-31 | Dual-fuel supply system control device of marine engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201972795U true CN201972795U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200346340U Expired - Fee Related CN201972795U (en) | 2011-01-31 | 2011-01-31 | Dual-fuel supply system control device of marine engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201972795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109843713A (en) * | 2016-10-17 | 2019-06-04 | 现代重工业株式会社 | Marine engines |
-
2011
- 2011-01-31 CN CN2011200346340U patent/CN201972795U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109843713A (en) * | 2016-10-17 | 2019-06-04 | 现代重工业株式会社 | Marine engines |
| CN109843713B (en) * | 2016-10-17 | 2021-06-25 | 现代重工业株式会社 | Engine for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20140131 |