CN220395866U - Methanol-diesel dual-fuel high-pressure pump - Google Patents
Methanol-diesel dual-fuel high-pressure pump Download PDFInfo
- Publication number
- CN220395866U CN220395866U CN202321977173.XU CN202321977173U CN220395866U CN 220395866 U CN220395866 U CN 220395866U CN 202321977173 U CN202321977173 U CN 202321977173U CN 220395866 U CN220395866 U CN 220395866U
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- oil
- methanol
- diesel
- pump
- metering valve
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- 239000000446 fuel Substances 0.000 title claims abstract description 58
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 177
- 238000005086 pumping Methods 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims abstract description 36
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002283 diesel fuel Substances 0.000 claims description 27
- 230000008878 coupling Effects 0.000 claims description 19
- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 230000009977 dual effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 174
- 239000010687 lubricating oil Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000007792 addition Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a methanol-diesel dual-fuel high-pressure pump, which comprises a pump body, a transmission part, an oil pumping part and a metering part; the transmission part and the oil pumping part are arranged in the pump body, and the transmission part comprises a transmission shaft and a cam; at least two groups of cams are arranged; the oil pumping part at least comprises an oil delivery pump and an alcohol delivery pump which are arranged in parallel and comprises a supporting body component and an oil pumping component; one end of the tappet assembly is matched with the cam, and the other end of the tappet assembly is matched with the oil pumping assembly; the metering part comprises a methanol metering valve, a diesel metering valve and a metering valve seat; the methanol metering valve and the diesel metering valve are arranged on the metering valve seat, and the metering valve seat is respectively communicated with the alcohol conveying pump and the oil conveying pump through a methanol conveying pipe and a diesel conveying pipe; the metering valve seat is provided with a methanol inlet connected with the methanol metering valve and a diesel inlet connected with the diesel metering valve, and the metering valve has the advantages of reliable operation, low cost and flexible installation.
Description
Technical Field
The utility model relates to the field of common rail high-pressure pumps, in particular to a methanol-diesel dual-fuel high-pressure pump.
Background
Diesel is always a fuel source of medium and heavy engines as a non-renewable fossil energy source, and along with the development of economy and global geopolitical factors, the supply and price of petroleum resources are uncontrollably affected, while methanol has a broad market prospect as a main substitute for clean and renewable fuel to become diesel. The diesel engine uses the methanol-diesel dual fuel to realize that the methanol is used for replacing the diesel to become main energy consumption, and meanwhile, a technical route of a small amount of diesel to bear the ignition function is a development trend of diesel technology, and the diesel engine has the advantages of low energy consumption, high substitution rate, low emission, small modification of the diesel, and the like. The electronic methanol pump is used in the market at present, has low pressure and poor reliability, and can not meet the direct injection requirement in a cylinder, so that a novel dual-fuel high-pressure pump is required to be used for oil supply.
In view of the foregoing, there is a need for a reliable, low cost, flexible to install dual fuel high pressure methanol-diesel pump.
Disclosure of Invention
The utility model aims to provide the methanol-diesel dual-fuel high-pressure pump which is reliable in operation, low in cost and flexible in installation.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
a methanol-diesel dual-fuel high-pressure pump comprises a pump body, a transmission part, an oil pumping part and a metering part; the transmission part and the oil pumping part are arranged in the pump body, and the transmission part comprises a transmission shaft and a cam; at least two groups of cams are arranged; the oil pumping part at least comprises an oil delivery pump and an alcohol delivery pump which are arranged in parallel and comprises a supporting body component and an oil pumping component; one end of the tappet assembly is matched with the cam, and the other end of the tappet assembly is matched with the oil pumping assembly; the metering part comprises a methanol metering valve, a diesel metering valve and a metering valve seat; the methanol metering valve and the diesel metering valve are arranged on the metering valve seat, and the metering valve seat is respectively communicated with the alcohol conveying pump and the oil conveying pump through a methanol conveying pipe and a diesel conveying pipe; the metering valve seat is provided with a methanol inlet connected with the methanol metering valve and a diesel oil inlet connected with the diesel oil metering valve.
As a preferred technical solution, the transmission shaft further comprises a signal panel.
As a preferable technical scheme, the oil pumping assembly comprises a plunger matching part, an oil inlet valve matching part, an oil outlet valve matching part and an oil return matching part.
As a preferable technical scheme, the oil return matching parts comprise a methanol oil return pipe and a diesel oil return pipe; the methanol oil return pipe is arranged on the alcohol conveying pump, and the diesel oil return pipe is arranged on the oil conveying pump.
As a preferred embodiment, the metering section is designed separately from the pump body.
The utility model has the advantages that:
1. the methanol-diesel dual-fuel high-pressure pump comprises a pump body, a transmission part, an oil pumping part and a metering part; the transmission part and the oil pumping part are arranged in the pump body; the pump body is also provided with a longitudinal lubricating oil duct and two oblique transverse lubricating oil ducts, and the longitudinal oil duct is communicated with the transverse oil duct and can lubricate the connected movable parts; the transmission part comprises a transmission shaft and a cam; the cam is at least two groups, and the oil pumping part is at least formed by arranging an oil delivery pump and an alcohol delivery pump in parallel and comprises a supporting body component and an oil pumping component; one end of the tappet assembly is matched with the cam, and the other end of the tappet assembly is matched with the oil pumping assembly; the pressurizing and pumping of the methanol and the diesel oil can be realized; the metering part comprises a methanol metering valve, a diesel metering valve and a metering valve seat; the methanol metering valve and the diesel metering valve are arranged on the metering valve seat, and the metering valve seat is respectively communicated with the alcohol conveying pump and the oil conveying pump through a methanol conveying pipe and a diesel conveying pipe; the metering valve seat is provided with a methanol inlet connected with the methanol metering valve and a diesel oil inlet connected with the diesel oil metering valve; the diesel oil and the methanol can be mixed according to a certain proportion for injection; the oil return matching part is matched with the leakage cavity, so that the leakage problem of methanol and diesel oil in the pressurizing engineering is effectively solved.
2. According to the methanol-diesel dual-fuel high-pressure pump, the metering part is separated from the pump body, and the metering part and the pump body are connected through the methanol conveying pipe and the diesel conveying pipe and convey methanol and diesel, so that the high-pressure pump is convenient to install, the influence caused by vibration of the device is effectively reduced, the system is more stable, and the working stability of the metering part is ensured.
Drawings
FIG. 1 is a schematic perspective view of a methanol-diesel dual-fuel high-pressure pump of the utility model.
Fig. 2 is a schematic view of a partial cutaway of a bushing of a dual-fuel high-pressure pump for methanol-diesel according to the present utility model.
Fig. 3 is a schematic diagram of a partial cut-away of a signal panel of a methanol-diesel dual-fuel high-pressure pump of the present utility model.
Fig. 4 is an axial cut-away schematic view of a methanol-diesel dual-fuel high-pressure pump of the present utility model.
FIG. 5 is a schematic drawing showing the oil pumping section of a methanol-diesel dual-fuel high-pressure pump.
Fig. 6 is a schematic perspective view of another methanol-diesel dual-fuel high-pressure pump of the utility model.
Detailed Description
The utility model is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it is understood that various changes and modifications of the present utility model may be made by those skilled in the art after reading the description of the present utility model, and such equivalents are intended to fall within the scope of the claims appended hereto.
Reference numerals and components referred to in the drawings are as follows:
1. pump body 2, transmission part 3, oil pumping part
4. Metering section 21, drive shaft 22, cam
23. Signal panel 31, jack assembly 32, oil pumping assembly
321. Plunger coupling 322, oil inlet valve coupling 323, oil outlet valve coupling
324. Oil control valve tightening cap 33, oil return coupling 331, throttle pin
332. Pore channel 41, methanol metering valve 42, diesel metering valve
43. Metering valve seat 431 methanol inlet 432 diesel inlet
433. Diesel delivery pipe 434, methanol delivery pipe
Example 1
Referring to fig. 1, fig. 1 is a schematic perspective view of a dual-fuel high-pressure pump for methanol-diesel according to the present utility model. A methanol-diesel dual-fuel high-pressure pump comprises a pump body 1, a transmission part 2, an oil pumping part 3 and a metering part 4; the transmission part 2 and the oil pumping part 3 are arranged in the pump body 1; a longitudinal lubricating oil duct and two oblique transverse lubricating oil ducts are also arranged on the pump body 1, and the longitudinal oil duct is communicated with the transverse oil duct;
the transmission part 2 and the oil pumping part 3 are arranged in the pump body 1, the transmission part 2 comprises a transmission shaft 21 and a cam 22, and at least two groups of cams 22 are arranged; the transmission shaft 21 drives the cams 22 to rotate, and the two groups of cams 22 respectively provide high-pressure oil pumping power for the oil delivery pump and the alcohol delivery pump of the oil pumping part 3; referring to fig. 2 and fig. 3, fig. 2 is a schematic view of a partial cut-away of a bearing bush of a methanol-diesel dual-fuel high-pressure pump according to the present utility model, and fig. 3 is a schematic view of a partial cut-away of a signal disc of the methanol-diesel dual-fuel high-pressure pump according to the present utility model; the transmission part 2 further comprises a front flange body, a rear flange body, a bearing bush and a signal panel 2323; the rear flange body and the front flange body are arranged in supporting holes at two ends of the pump body 1, wherein a through hole is processed on a bearing bush, an arc-shaped oil groove is arranged at the inner side of the bearing bush corresponding to the through hole, an included angle is 90 degrees, the bearing bushes are respectively arranged in the front flange body and the rear flange body, a transmission shaft 21 is arranged in the bearing bush holes of the front flange body and the rear flange body, two groups of cams 22 and signal discs 23 are sleeved on the transmission shaft 21, the signal discs 23 are used for providing signals for controlling the oil injection time of an engine, 7 teeth are arranged on the circumference of the signal discs 23, 6 teeth are uniformly distributed along the circumferential direction, and the other teeth are arranged at a certain angle with key grooves on the transmission shaft 21; the included angle between three cams 22 of the two groups of cams 22 arranged in the circumferential direction is 120 degrees, the two groups of cams 22 are different by 60 degrees relative to the circumferential direction, and the two groups of cams 22 adopt different lifts and cam 22 molded lines according to different pressure and compression characteristics of diesel oil and methanol two fuel designs.
Referring to fig. 4, fig. 5, fig. 4 is an axial cut-away schematic view of a dual-fuel high-pressure pump for methanol-diesel according to the present utility model, and fig. 5 is a cut-away schematic view of a pump oil portion of a dual-fuel high-pressure pump for methanol-diesel according to the present utility model; the oil pumping part 3 comprises a tappet assembly 31 and an oil pumping assembly 32; the tappet body assembly 31 is arranged between the oil pumping assembly 32 and the transmission part 2 and is used for supporting the oil pumping assembly 32, and the tappet body assembly comprises a tappet body, an inner roller, an outer roller, a pin shaft and a clamping ring; the tappet body assembly is always in contact with the cam 22 under the action of a plunger spring, moves vertically and linearly in a tappet body hole of the pump body 1 under the action of the cam 22, the pin shaft is arranged on the tappet body, the inner roller is sleeved on the pin shaft, the outer roller is sleeved on the inner roller, the outer roller is pressed on the surface of the cam 22 and rotates along with the rotation of the cam 22, moves vertically along with the lift change of the cam 22, one side of the tappet body, which is vertical to the direction of the pin shaft mounting hole, is provided with a circular arc long groove, and the pump body 1 is provided with a positioning pin II for limiting the tappet body to move rotationally in the up-down reciprocating motion; the oil pumping assembly 32 comprises a plunger coupling 321, an oil inlet valve coupling 322, an oil outlet valve coupling 323 and an oil control valve tightening cap 324, wherein the plunger coupling 321 comprises a plunger sleeve, a plunger spring and a plunger spring seat; the plunger sleeve is coaxial with the plunger, is arranged above the pump body, is provided with the oil control valve tightening cap 324, is particularly arranged in the plunger sleeve coupling hole, is clamped on the plunger through a rectangular opening on the spring seat, and is pressed on the plunger sleeve at one end and the plunger spring seat at the other end; the plunger spring seat is arranged in the tappet body, and the plunger coupling 321 is connected with the pump body 1 by a fastening bolt; the oil inlet valve coupling 322 comprises an oil inlet valve, an oil inlet valve seat and an oil inlet valve spring; the oil inlet valve is coupled and assembled in the oil inlet valve seat, one end of the oil inlet valve spring is pressed on the oil inlet valve, and the other end of the oil inlet valve spring is pressed on the oil outlet valve; the delivery valve coupling 323 comprises a delivery valve, a delivery valve seat and a delivery valve spring; the oil outlet valve is coupled and assembled in the oil outlet valve seat, one end of the oil outlet valve spring is pressed on the oil outlet valve, and the other end of the oil outlet valve spring is pressed on the oil control valve tightening cap 324; the positioning pin I is respectively inserted into the oil inlet valve seat and the oil outlet valve seat, the oil inlet valve matching part 322 and the oil outlet valve matching part 323 are arranged in plunger sleeve holes, and an oil passage hole in the oil inlet valve seat is required to be perpendicular to a mounting hole of the throttling pin 331; the oil control valve tightening cap 324 is in threaded connection with the plunger sleeve, fixes the oil outlet valve seat and the oil inlet valve seat in the plunger sleeve hole, and compresses the oil outlet valve with the oil outlet valve seat through the oil outlet valve spring.
The plunger sleeve hole and the plunger top form a pump oil cavity, the plunger top and the bottom of the oil inlet valve seat are sealed in an annular mode to form an oil cavity, and the plunger top and a plunger sleeve hole side gap form the oil cavity; the oil inlet valve seat is internally provided with a radial straight through hole, a hole which is coupled with and communicated with the oil inlet valve, an upper through hole, a lower through hole and a positioning pin hole. The oil inlet valve is provided with four arc oil inlet channels and an annular arc oil groove which is communicated with the arc oil inlet channels. The outer contour surface of the oil inlet valve seat and the plunger sleeve cavity form an annular oil cavity, and the bottom plane of the oil inlet valve seat and the plunger sleeve are in contact with the annular oil cavity formed outside the annular surface. The oil inlet valve seat and the oil outlet valve seat are fan-shaped and cylindrically formed oil storage cavities, the top surface of the oil outlet valve seat, the top surface of the oil outlet valve and the oil control valve tight cap 324 form a high-pressure oil cavity, and an oil outlet is processed on the oil control valve tight cap 324. The oil outlet valve is provided with four arc-shaped oil outlet channels and an annular arc-shaped oil groove which is communicated with the arc-shaped oil outlet channels, and is provided with a positioning pin hole corresponding to the oil inlet valve seat. The pumping assembly 32 further comprises an oil return coupling 33, an oil inlet passage and a through oil return passage hole are formed in the plunger sleeve, a throttle pin 331 is arranged in the oil return passage hole, and a throttle hole is arranged in the throttle pin 331. The middle part of the plunger hole on the plunger sleeve is provided with an annular leakage cavity formed by the surface of the plunger, and the oil return matching part 33 is communicated with the leakage cavity through a fine hole channel 332. Each oil return coupling 33 is connected with a methanol oil return pipe and a diesel oil return pipe respectively.
The pump body 1, the front flange body, the rear flange body and the bearing bush are provided with a lubricating oil duct, an oil hole and an oil groove. The pressure lubricating oil provided by the engine oil pump enters the longitudinal lubricating oil duct through the lubricating oil inlet of the pump body 1, and is distributed to the vertical oil ducts on the front flange body and the rear flange body through the oblique transverse oil ducts at the two ends of the pump body 1, and flows to the circular arc-shaped oil grooves of the bearing bushes through the bearing bush oil duct holes, so that the shaft diameter lubricating effect of the transmission shaft 21 is achieved.
The metering unit 4 includes a methanol metering valve 41, a diesel metering valve 42, and a metering valve seat 43; the metering valve seat 43 is provided with a methanol inlet 431 and a diesel oil inlet 432, and the methanol inlet 431 and the diesel oil inlet 432 are respectively communicated with the methanol metering valve 41 and the diesel oil metering valve 42; the low-pressure fuel enters an oil inlet channel of the metering valve seat 43 through a methanol inlet 431 and a diesel inlet 432, enters a plunger cavity and a metering valve oil outlet cavity through an oil inlet hole on the metering valve at a step cavity, and is respectively coupled with a diesel delivery pipe 433 or a methanol delivery pipe 434 at an oil outlet through a cavity B, a cavity C and an oil outlet channel of the metering valve seat 43; the fuel passing through the plunger cavity is metered, the quantity of the fuel is determined by the position of the plunger of the metering valve, and the plunger displacement is influenced by the fuel pressure before and after the plunger. The oil return matching part 33 is connected with the methanol oil outlet of the metering valve seat 43 through an external oil pipe, namely a methanol oil return pipe and a diesel oil return pipe, and the diesel oil return pipe is connected with the diesel oil outlet of the metering valve seat 43 through an external oil pipe.
The utility model relates to a specific working principle of a methanol-diesel dual-fuel high-pressure pump for an engine, which comprises the following steps:
when the engine does not work, the two fuels of methanol and diesel oil form low-pressure fuel under the action of an external low-pressure electronic pump, the low-pressure fuel enters the metering valve seat 43 through the methanol inlet 431 or the diesel oil inlet 432, respectively enters the methanol delivery pipe 434 and the diesel oil delivery pipe 433 after being metered by the methanol metering valve 41 and the diesel oil metering valve 42, enters the oil inlet valve seat and the plunger collar-shaped oil cavity at the plunger sleeve through the oil inlet channel, enters the oil inlet valve seat hole at the same time, and part of the low-pressure fuel returns to the outlet of the metering valve seat 43 through the throttle valve hole and the oil return channel.
And (3) oil inlet process: when the engine rotates, the transmission shaft 21 is driven to rotate, when the cam 22 turns to a base circle from the highest lift, the plunger moves downwards under the action of the plunger spring, the pressure in the plunger cavity is reduced, the fuel in the fuel inlet valve seat hole overcomes the elasticity of the fuel inlet valve spring to push the fuel inlet valve to move upwards, and the fuel enters the fuel storage cavity through the arc-shaped oil duct of the fuel inlet valve and the annular arc-shaped oil groove and enters the pump cavity through the oil hole, so that the fuel inlet process is completed.
And (3) oil pumping process: in the process of rotating the cam 22 on the transmission shaft 21 from the base circle to the highest lift point, the plunger overcomes the elasticity of the plunger spring to move upwards, when the fuel pressure in the oil storage cavity is larger than the fuel pressure, the fuel inlet valve is closed, when the fuel pressure is larger than the spring pressure of the oil outlet valve along with the plunger rising, the fuel pushes the oil outlet valve to move upwards, the oil outlet valve is opened, and the fuel enters the oil cavity and the oil outlet channel through the arc-shaped oil channel and the annular arc-shaped oil groove of the oil outlet valve and is supplied to the common rail pipe to finish the oil pumping process.
And (3) oil return process: the plunger descends to form the negative pressure in the oil cavity of the pump and the throttle valve hole is small, so that oil return is basically avoided in the oil inlet process; in the oil pumping process, when the oil inlet valve is closed, fuel enters the annular oil cavity of the oil inlet valve and the oil inlet valve seat from the oil inlet channel, and enters the oil inlet valve seat hole at the same time, and part of the fuel returns to the outlet of the metering valve seat 43 through the throttle valve hole and the oil return channel; in continuous operation, fuel leaking through the mating clearance of the plunger and plunger sleeve is stored in the leak chamber and returned to the outlet of the metering valve seat 43 through the return passage.
Referring to fig. 6, fig. 6 is a schematic perspective view of another methanol-diesel dual-fuel high-pressure pump according to the present utility model. In some preferred embodiments, the metering part 4 is separated from the pump body 1, and the metering part 4 and the pump body are connected through a methanol delivery pipe 434 and a diesel delivery pipe 433, and are used for delivering methanol and diesel, so that the installation of the high-pressure pump is facilitated, the influence caused by vibration of the device is effectively reduced, the system is more stable, and the working stability of the metering part 4 is ensured.
It should be noted that: the methanol-diesel dual-fuel high-pressure pump comprises a pump body 1, a transmission part 2, an oil pumping part 3 and a metering part 4; the transmission part 2 and the oil pumping part 3 are arranged in the pump body 1; the pump body 1 is also provided with a longitudinal lubricating oil duct and two oblique transverse lubricating oil ducts, and the longitudinal oil duct is communicated with the transverse oil duct and can lubricate the connected movable parts; the transmission part 2 comprises a transmission shaft 21 and a cam 22; the cams 22 are at least two groups, and the oil pumping part 3 at least comprises an oil delivery pump and an alcohol delivery pump which are arranged in parallel and comprises a supporting body assembly 31 and an oil pumping assembly 32; one end of the tappet assembly 31 is matched with the cam 22, and the other end is matched with the oil pumping assembly 32; the pressurizing and pumping of the methanol and the diesel oil can be realized; the metering unit 4 includes a methanol metering valve 41, a diesel metering valve 42, and a metering valve seat 43; the methanol metering valve 41 and the diesel metering valve 42 are arranged on the metering valve seat 43, and the metering valve seat 43 is respectively communicated with an alcohol delivery pump and an oil delivery pump through a methanol delivery pipe 434 and a diesel delivery pipe 433; the metering valve seat 43 is provided with a methanol inlet 431 connected with the methanol metering valve 41 and a diesel inlet 432 connected with the diesel metering valve 42; the diesel oil and the methanol can be mixed according to a certain proportion for injection; the oil return matching part 44 and the leakage cavity effectively solve the leakage problem of methanol and diesel oil in the pressurization engineering.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and additions to the present utility model may be made by those skilled in the art without departing from the principles of the present utility model and such modifications and additions are to be considered as well as within the scope of the present utility model.
Claims (5)
1. The methanol-diesel dual-fuel high-pressure pump is characterized by comprising a pump body, a transmission part, a pump oil part and a metering part; the transmission part and the oil pumping part are arranged in the pump body, and the transmission part comprises a transmission shaft and a cam; at least two groups of cams are arranged; the oil pumping part at least comprises an oil delivery pump and an alcohol delivery pump which are arranged in parallel and comprises a supporting body component and an oil pumping component; one end of the tappet assembly is matched with the cam, and the other end of the tappet assembly is matched with the oil pumping assembly; the metering part comprises a methanol metering valve, a diesel metering valve and a metering valve seat; the methanol metering valve and the diesel metering valve are arranged on the metering valve seat, and the metering valve seat is respectively communicated with the alcohol conveying pump and the oil conveying pump through a methanol conveying pipe and a diesel conveying pipe; the metering valve seat is provided with a methanol inlet connected with the methanol metering valve and a diesel oil inlet connected with the diesel oil metering valve.
2. The dual methanol-diesel high pressure pump of claim 1 wherein the drive shaft further comprises a signal disc.
3. The methanol-diesel dual fuel high pressure pump of claim 1, wherein the pump oil assembly comprises a plunger coupling, an oil inlet valve coupling, an oil outlet valve coupling, and an oil return coupling.
4. A methanol-diesel dual fuel high pressure pump as in claim 3, wherein the scavenge coupling comprises a methanol scavenge pipe, a diesel scavenge pipe; the methanol oil return pipe is arranged on the alcohol conveying pump, and the diesel oil return pipe is arranged on the oil conveying pump.
5. The methanol-diesel dual fuel high pressure pump of claim 1, wherein the metering portion is of a split design from the pump body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321977173.XU CN220395866U (en) | 2023-07-26 | 2023-07-26 | Methanol-diesel dual-fuel high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321977173.XU CN220395866U (en) | 2023-07-26 | 2023-07-26 | Methanol-diesel dual-fuel high-pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220395866U true CN220395866U (en) | 2024-01-26 |
Family
ID=89614671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321977173.XU Active CN220395866U (en) | 2023-07-26 | 2023-07-26 | Methanol-diesel dual-fuel high-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220395866U (en) |
-
2023
- 2023-07-26 CN CN202321977173.XU patent/CN220395866U/en active Active
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