CN110388294A - Fuel supply system - Google Patents
Fuel supply system Download PDFInfo
- Publication number
- CN110388294A CN110388294A CN201910304800.5A CN201910304800A CN110388294A CN 110388294 A CN110388294 A CN 110388294A CN 201910304800 A CN201910304800 A CN 201910304800A CN 110388294 A CN110388294 A CN 110388294A
- Authority
- CN
- China
- Prior art keywords
- fuel
- room
- supplying part
- engine
- supply system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/046—Arrangements for driving diaphragm-type pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/12—Feeding by means of driven pumps fluid-driven, e.g. by compressed combustion-air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
Abstract
The present invention provides a kind of fuel supply system, for the fuel supply system, can arbitrarily select the setting position of fuel supplying part and can inhibit lower by the influence of the heat from engine etc..Fuel supply system (1) include for by liquid fuel from fuel tank (4) to the fuel supplying part (2) that is supplied by fuel supplying part (5) and pulsation generating unit (17), wherein, fuel supplying part (2) has pump chamber (13), operating room (12) and be set to the diaphragm (14) of the pump chamber (13) and operating room (12) to each other, and it is connected to pump chamber (13) with fuel tank (4) and by fuel supplying part (5), pulsation generating unit (17) has the variation room (18) being connected to operating room (12), it is changed and making to change rotation of the volume in room (18) with engine, to generate pulsation, diaphragm (14) are vibrated using the pulsation of generation, liquid fuel is supplied from fuel tank (4) to by fuel supplying part (5).
Description
Technical field
The present invention relates to a kind of fuel supply systems.
Background technique
In the past, as shown in Figure 10, as in four-stroke engine 101 for by liquid fuel from fuel tank 102 to
In the fuel supply system that the auxiliary tank 103 of temporarily storage liquid fuel supplies, it is known that following fuel supply system 107, that is, benefit
With the movement of the rocker arm 106 driven by the camshaft 105 of engine 101, make the diaphragm mechanical movement in fuel supplying part 104,
Using the movement of the diaphragm, liquid fuel is supplied to auxiliary tank 103.
Summary of the invention
Problems to be solved by the invention
In the previous fuel supply system 107, using the movement of rocker arm 106 make in fuel supplying part 104 every
Film movement, it is therefore desirable to supply it to portion 104 and be set near engine 101.It is generated accordingly, there exist reason engine
Heat and make in fuel supplying part 104 by liquid fuel volume change make to auxiliary tank 103 supply liquid fuel
The unstable possibility of amount.
Therefore, it is an object of the present invention to propose a kind of setting position that can arbitrarily select fuel supplying part and energy
Enough influences by the heat from engine etc. inhibit to obtain lower fuel supply system.
The solution to the problem
Described in order to solve the problems, such as, the present application is a kind of fuel supply system comprising is used for liquid fuel
It is characterized in that from fuel tank to the fuel supplying part and pulsation generating unit, the fuel supply system supplied by fuel supplying part,
The fuel supplying part has pump chamber, operating room and the diaphragm set on the pump chamber and operating room to each other, and makes
The pump chamber is connected to the fuel tank and by fuel supplying part,
The pulsation generating unit has the variation room that be connected to the operating room, by make the indoor volume of variation with
The rotation of engine and change, to generate pulsation, vibrate diaphragm using the pulsation of generation, by liquid fuel from described
Fuel tank is supplied to described by fuel supplying part.
In addition it is also possible to be, the variation room is communicated with the atmosphere via venthole.
In addition it is also possible to be, moved back and forth and making rotation of the sliding component with engine, to make to change indoor
Volume change.
In addition it is also possible to be, by make to pulse generation diaphragm with engine rotation and bending vibration, to make to become
Indoor volume is moved to change.
The effect of invention
According to the present invention, including fuel supplying part is with pulsation generating unit, and generating unit of pulsing has to be connected to the operating room
Variation room, changed and making the rotation for changing indoor volume with engine, to generate pulsation, utilize generation
The pulsation vibrate diaphragm, liquid fuel is supplied from the fuel tank to described by fuel supplying part, so as to fire
Material supply unit is set to the less arbitrary position of heat affecting of engine etc., is able to suppress the liquid passed through in fuel supplying part
Fluid fuel is thermally influenced, and can be improved the freedom degree of setting layout compared with the structure of the conventional art.
Detailed description of the invention
Fig. 1 is the skeleton diagram of the fuel supply system of the embodiment of the present invention 1.
Fig. 2 is the top view of fuel supplying part used in the embodiment of the present invention 1.
Fig. 3 is the cross-sectional view along the line A-A of Fig. 2.
Fig. 4 is the partial sectional view of pulsation generating unit used in the embodiment of the present invention 1.
Fig. 5 is the partial sectional view of the state after being moved upward piston from the state of Fig. 4.
Fig. 6 is the partial sectional view of pulsation generating unit used in the embodiment of the present invention 2.
Fig. 7 is the partial sectional view of pulsation generating unit used in the embodiment of the present invention 3.
Fig. 8 is an example of the partial sectional view of pulsation generating unit used in the embodiment of the present invention 4.
Fig. 9 is another example of the partial sectional view of pulsation generating unit used in the embodiment of the present invention 4.
Figure 10 is the skeleton diagram of the fuel supply system of conventional art.
Description of symbols
1, fuel supply system；3, engine；4, fuel tank；5, by fuel supplying part；12, operating room；13, pump chamber；14,
Diaphragm；17, pulsation generating unit；18, room is changed；40a, venthole.
Specific embodiment
Embodiment based on the figure illustrates mode for carrying out the present invention.
[embodiment 1]
FIG. 1 to FIG. 5 indicates the embodiment of the present invention 1.
Fig. 1 shows the skeleton diagram of the fuel supply system 1 of the embodiment of the present invention 1, which has fuel
Supply unit 2 and four-stroke engine 3 as internal combustion engine.
Fuel supplying part 2 is used for liquid fuel in fuel tank 4 to being fired as being used to temporarily store liquid fuel
Expect that the auxiliary tank 5 of supply unit supplies.The high pressure fuel pump 5a that liquid fuel in auxiliary tank 5 is located in auxiliary tank 5 supply to
Fuel injection portion 6, and by the injection to the intake channel 7 of engine 3 of fuel injection portion 6.
The float 5b that can be floated in the up-down direction is equipped in auxiliary tank 5.Float 5b is formed as firing relative to liquid
Material floats, and follows the displacement of the liquid level of liquid fuel and goes up and down, if the liquid level of liquid fuel becomes the height more than making a reservation for, benefit
With the end for the discharge pipe 10 that aftermentioned scheduled pressure seal supplies liquid fuel from fuel supplying part 2 to auxiliary tank 5, if
The liquid level of liquid fuel becomes and makes a reservation for height below, then opens the end of discharge pipe 10.
Then, illustrate fuel supplying part 2.
As shown in figure 3, fuel supplying part 2 has shell 11, shell 11 is by by the 1st shell 11a, the 2nd shell 11b, the 3rd
Shell 11c is superimposed together in such a way that the 2nd shell 11b is clipped in the middle and is constituted.
The operating room 12 that oriented 2nd shell 11b side opening is formed in the 1st shell 11a is formed in the 2nd shell 11b
To the 1st shell 11a side opening and positioned at the pump chamber 13 of the position opposite with operating room 12, in the 1st shell 11a and the 2nd shell
It is clamped with the flexible fuel supply diaphragm 14 by formation such as rubber, resin, metals between 11b, is supplied using the fuel
To the opening portion for the opening portion and pump chamber 13 for closing operating room 12 with diaphragm 14, and carried out between operating room 12 and pump chamber 13
It divides.
As shown in Figure 3, Figure 4, operating room 12 using communicating pipe 16 and with pulsation generating unit 17 variation room 18 in be connected to, work
The opening portion for making room 12 is closed by fuel supply diaphragm 14.
It is connected to via the inlet hole (not shown) for being formed in the 2nd shell 11b with suction chamber 21 in pump chamber 13, such as Fig. 1, figure
Shown in 3, suction chamber 21 via suction line 23 and be connected in fuel tank 4.
Be equipped with the inlet valve 20 that can be opened and closed that is formed by leaf spring in the inlet hole, inlet valve 20 by pump chamber 13 at
Valve opening when for decompression state and make liquid fuel in fuel tank 4 via suction line 23, suction chamber 21, inlet valve 20 and flow into
The check-valves of valve closing is formed when becoming pressurized state in pump chamber 13 and in pump chamber 13, inhibits liquid fuel from pump chamber 13 to suction
Enter the room 21 countercurrently.In addition, inlet valve 20 is by leaf spring other than it can be formed, it also can be by the arbitrary of inlet hole can be opened and closed
Component is formed.
In addition, the 1st adjustment room 25 is formed in the 3rd side shell 11c of suction chamber 21, using preparation diaphragm 26 in suction chamber
It is divided between 21 and the 1st adjustment room 25.
By the 1st adjustment room 25 of setting and preparation diaphragm 26, to become pressurized state from decompression state in pump chamber 13
When, the closing motion of inlet valve 20 is carried out ahead of time, optimizes the followability of the pressure change for pump chamber 13.
It is connected to via the tap (not shown) for being formed in the 2nd shell 11b in pump chamber 13 with discharge room 31, such as Fig. 1, figure
Shown in 3, be discharged room 31 via discharge pipe 10 and be connected in auxiliary tank 5.
Be equipped with the dump valve 30 that can be opened and closed that is formed by leaf spring in the tap, dump valve 30 by pump chamber 13 at
Valve opening when for pressurized state and by the liquid fuel in pump chamber 13 to the supply of discharge room 31 and via discharge pipe 10 and to auxiliary
The check-valves of valve closing is formed when supplying in case 5 and becoming decompression state in pump chamber 13, inhibits liquid fuel from discharge room 31
To 13 adverse current of pump chamber.In addition, dump valve 30 is by leaf spring other than it can be formed, it also can be by any of tap can be opened and closed
Component formed.
In addition, the 2nd adjustment room 35 is formed in the 3rd side shell 11c of discharge room 31, using preparation diaphragm 26 in discharge room
It is divided between 31 and the 2nd adjustment room 35.
By the 2nd adjustment room 35 of setting and preparation diaphragm 26, so that self-pressurization state becomes decompression state in pump chamber 13
When, the closing motion of dump valve 30 is carried out ahead of time, optimizes the followability of the pressure change for pump chamber 13.
In addition, the height of the liquid level of the liquid fuel in auxiliary tank 5 be it is predetermined more than in the case where, using float 5b with
The end of the scheduled pressure seal discharge pipe 10 higher than the maximum pressure generated by the fuel supply diaphragm 14 in pump chamber 13
Portion, therefore no longer supply liquid fuel from pump chamber 13 to auxiliary tank 5.
Then, illustrate generating unit 17 of pulsing.
As shown in Figure 4, Figure 5, pulsation generating unit 17 has the shell 40, In being formed as one with the top cover 3a of engine 3
Space chamber 41 is formed in shell 40.It is equipped with that (Fig. 4's is upper to 3 side of Rocker arm 4 of engine 3 and the side top cover 3a in space chamber 41
Lower direction) move back and forth piston 42.Bar 42a is fixedly installed in that side by Rocker arm 43 of piston 42.
Be formed between the shell 40 and piston 42 of space chamber 41 change room 18, the variation room 18 via communicating pipe 16 and
It is connected to the operating room 12 of fuel supplying part 2.By making the piston 42 as sliding component in the axis direction (figure for changing room 18
4 up and down direction) on move back and forth and make change room 18 in volume change.Space chamber 41, the shape for changing room 18, piston 42
It can be randomly formed.
Be formed with venthole 40a in shell 40, change and be communicated with the atmosphere in room 18, inhibit to change volume in room 18 by
The influence of the variation of temperature around engine 3.Alternatively, it is also possible to be not provided with venthole 40a.
Inner peripheral surface in top cover 3a be fixedly installed pressing plate 45 so that piston 42 to 3 side of Rocker arm 4 it is mobile predetermined more than
Degree.In addition, piston 42 is exerted a force by the helical spring 44 as biasing member to 3 side of Rocker arm 4 always.
The bar 42a of piston 42 is set as being connected to the end of that side by piston 42 of Rocker arm 43.
The end of that side by piston 42 of the Rocker arm 43 moved back and forth as a result, in the rotation with engine 3 to
When 41 side of space chamber is mobile, bar 42a is pushed to the top of Fig. 4 and keeps piston 42 mobile to the top of Fig. 4, in addition, in rocker arm
When the end of 43 that side by piston 42 is mobile to the side cylinder 3b of engine 3, piston 42 is under the action of helical spring 44
It is mobile to 45 side of pressing plate.
In this way, piston 42 is moved back and forth with the rotation of engine 3 during engine 3 is in operating condition.
During engine 3 is in operating condition, using the reciprocating motion of piston 42, makes to change the volume in room 18 and become
It is dynamic, to make the pressure oscillation changed in room 18 and generate air impulsive motion.The pulsation generated is transferred to via communicating pipe 16
In the operating room 12 of fuel supplying part 2, it is alternately iteratively produced decompression state and pressurized state in operating room 12, supplies fuel
To with 14 bending vibration of diaphragm.Using the bending vibration of the fuel supply diaphragm 14, alternately it is iteratively produced in pump chamber 13
Pressurized state and decompression state, fuel supplying part 2 supply the liquid fuel in fuel tank 4 to auxiliary tank 5.
Using above-mentioned structure, in fuel supply system 1 of the invention, can make in the operation process of engine 3
Change room 18 in generate pulsation, and even if engine 3 rotation speed change, also can always by using change room 18 in produce
Raw pulsation makes to generate the pressure oscillation more than making a reservation in operating room 12, makes 14 bending vibration of fuel supply diaphragm, in pump chamber
Pressurized state and decompression state are alternately iteratively produced in 13, so that the fuel in fuel tank 4 be supplied to auxiliary tank 5.
In addition, directly vibrate fuel supply diaphragm 14 using the pulsation that generates in room 18 is being changed, thus with it is above-mentioned
The fuel supply system of conventional art is compared, and the construction of fuel supplying part 2 can be simplified, and can be realized miniaturization, light weight
Change, the reduction of manufacturing cost.
As long as fuel supply diaphragm 14 can be made to bend in addition, piston 42 can be generated with the rotation of engine 3
The pulsation of the degree of vibration, therefore do not need to be set to larger by the variation of the volume changed in room 18, it can make to pulse
Generating unit 17 minimizes, and can inhibit smaller by the influence generated to engine 3, Rocker arm 43, by engine output
The part of loss inhibits less.
In addition, as long as fuel supplying part 2 of the invention can make its operating room 12 interior and be connected in exhaust channel 18, energy
It is enough to be set to arbitrary position relative to engine 3, compared with the structure of conventional art, it can be improved the freedom of setting layout
Degree.
It is set to furthermore it is possible to supply it to portion 2 by the position less from the heat affecting of engine 3, therefore energy
It is enough that the heat affecting generated from engine 3 to fuel supplying part 2 is inhibited lower than the fuel supply system of above-mentioned conventional art, energy
It is enough steadily to supply the liquid fuel in fuel tank 4 to auxiliary tank 5.
In addition, fuel supplying part 2 of the invention can also apply to have other than it can be applied to four-stroke engine
There are the internal combustion engines such as the two stroke engine of fuel injection portion, in particular, can be suitably applied to that combustion can be unloaded from engine 3
The general purpose engines such as the machine outside of hopper 4.
In addition, by fuel supply system 1 of the invention be applied to fuel injection portion engine but it is also possible to be,
Apply the present invention to the engine with gasifier, using fuel supplying part 2, by the liquid fuel in fuel tank 4 to gasification
The float chamber of device supplies, using the float chamber as by fuel supplying part.
[embodiment 2]
In above-described embodiment 1, the shell 40 for generating unit 17 of pulsing is formed as into the top cover 3a one with engine 3, but
Be also possible to as shown in fig. 6, by pulse generating unit 17 shell 40A be formed separate from engine 3 top cover 3a component,
The shell 40A and the top cover 3a of engine 3 of generating unit 17 of pulsing are assembled.
Others construction is identical as above-described embodiment 1, therefore the description thereof will be omitted.
In the present embodiment 2, effect identical with above-described embodiment 1, effect are also functioned to.
[embodiment 3]
In above-described embodiment 1, piston 42 is not linked to Rocker arm 43, and utilizes the movement of Rocker arm 43 and helical spring
44, move back and forth piston 42 but it is also possible to be as shown in fig. 7, by the cylinder 3b's by engine 3 of the bar 42a of piston 42A
The end 42b of that side (downside of Fig. 7) is rotatably linked to the end of that side by piston 42 of Rocker arm 43, not
Move back and forth piston 42 with the reciprocating motion of Rocker arm 43.
Others construction is identical as above-described embodiment 1,2, therefore the description thereof will be omitted.
In the present embodiment 3, also function to and above-described embodiment 1,2 identical effects, effect.
[embodiment 4]
In above-described embodiment 1~3, piston 42 is moved back and forth using the reciprocating motion of Rocker arm 43, makes to change in room 18
Volume change and generate pulsation, but as long as using reciprocatings motion of Rocker arm 43 make change room 18 in volume variation and generate arteries and veins
It is dynamic, about the method that the volume for making to change in room 18 changes, it is able to use arbitrary method.
For example, it can be as shown in Figure 8, Figure 9, by utilizing the pressing clamping pulsation generation diaphragm of part 51,52
50, using connection part 53 make pulse generation diaphragm 50 with pressing part 51,52 link up, make the connection part 53 with
The reciprocating motion of Rocker arm 43 and moved back and forth in the up and down direction of Fig. 8, Fig. 9, thus make pulse generation diaphragm 50 flexure vibration
It is dynamic, make to change the volume in room 18 and changes and generate pulsation.
Connection part 53 and Rocker arm 43 can both be configured to not link as above-described embodiment 1, can also be such as above-mentioned reality
It applies example 3 to be configured to that bar 53a is fixedly installed in connection part 53 like that, an end and the Rocker arm 43 of bar 53a can be rotated
Ground links up.The application that bar 53a and Rocker arm 43 are not linked is illustrated in Fig. 8, answers bar 53a with what Rocker arm 43 linked up
With being illustrated in Fig. 9.
Others construction is identical as above-described embodiment 1~3, therefore the description thereof will be omitted.
In the present embodiment 4, effect identical with above-described embodiment 1~3, effect are also functioned to.
[embodiment 5]
In above-described embodiment 1~4, using the reciprocating motion of Rocker arm 43, makes to change the volume in room 18 and change and generate
Pulsation, but as long as the volume changed in room 18 can be made to change with the rotation of engine 3 and generate pulsation, it will be able to use
Arbitrary method carries out, and for example, it can be moved back and forth and making rotation of the piston 42 with camshaft or make to pulse
Generation with diaphragm 50 with the rotation of camshaft bending vibration, thus make change room 18 in volume change and generate pulsation.
Others construction is identical as above-described embodiment 1~4, therefore the description thereof will be omitted.
In the present embodiment 5, effect identical with above-described embodiment 1~4, effect are also functioned to.
Claims (4)
1. a kind of fuel supply system comprising for supplying liquid fuel from fuel tank to the fuel supplied by fuel supplying part
To portion and pulsation generating unit, which is characterized in that,
The fuel supplying part has pump chamber, operating room and the diaphragm set on the pump chamber and operating room to each other, and makes described
Pump chamber is connected to the fuel tank and by fuel supplying part,
The pulsation generating unit has the variation room being connected to the operating room, by making the indoor volume of variation with hair
The rotation of motivation and change, to generate pulsation, vibrate diaphragm using the pulsation of generation, by liquid fuel from the fuel
Case is supplied to described by fuel supplying part.
2. fuel supply system according to claim 1, which is characterized in that
The variation room is communicated with the atmosphere via venthole.
3. fuel supply system according to claim 1 or 2, which is characterized in that
It is moved back and forth and making rotation of the sliding component with engine, is changed to make to change indoor volume.
4. fuel supply system according to claim 1 or 2, which is characterized in that
By make to pulse generation diaphragm with engine rotation and bending vibration, changed to make to change indoor volume.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018078390A JP2019183790A (en) | 2018-04-16 | 2018-04-16 | Fuel supply device |
| JP2018-078390 | 2018-04-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110388294A true CN110388294A (en) | 2019-10-29 |
Family
ID=68284350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910304800.5A Pending CN110388294A (en) | 2018-04-16 | 2019-04-16 | Fuel supply system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2019183790A (en) |
| CN (1) | CN110388294A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001248562A (en) * | 2000-03-06 | 2001-09-14 | Nippon Carbureter Co Ltd | Pulsation type diaphragm pump |
| JP2005140027A (en) * | 2003-11-07 | 2005-06-02 | Nikki Co Ltd | Pulsating diaphragm fuel pump |
| CN101994603A (en) * | 2009-08-26 | 2011-03-30 | 现代自动车株式会社 | Fuel supplying system of LPI engine |
| JP2017166329A (en) * | 2016-03-14 | 2017-09-21 | 本田技研工業株式会社 | Diaphragm type fuel pump for general purpose engine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4913706A (en) * | 1972-05-19 | 1974-02-06 | ||
| JPS5584849A (en) * | 1979-12-10 | 1980-06-26 | Fuji Heavy Ind Ltd | Fuel pump for internal combustion pump |
| JPS60157976U (en) * | 1984-03-30 | 1985-10-21 | 富士重工業株式会社 | Fluid pump drive device |
| JP2924466B2 (en) * | 1992-07-02 | 1999-07-26 | トヨタ自動車株式会社 | Diaphragm pump |
| JP5873636B2 (en) * | 2011-02-14 | 2016-03-01 | 株式会社マキタ | engine |
-
2018
- 2018-04-16 JP JP2018078390A patent/JP2019183790A/en active Pending
-
2019
- 2019-04-16 CN CN201910304800.5A patent/CN110388294A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001248562A (en) * | 2000-03-06 | 2001-09-14 | Nippon Carbureter Co Ltd | Pulsation type diaphragm pump |
| JP2005140027A (en) * | 2003-11-07 | 2005-06-02 | Nikki Co Ltd | Pulsating diaphragm fuel pump |
| CN101994603A (en) * | 2009-08-26 | 2011-03-30 | 现代自动车株式会社 | Fuel supplying system of LPI engine |
| JP2017166329A (en) * | 2016-03-14 | 2017-09-21 | 本田技研工業株式会社 | Diaphragm type fuel pump for general purpose engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019183790A (en) | 2019-10-24 |
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Application publication date: 20191029 |
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