How Helix Fuel Pumps Work! (Jerk Piston Variable Injection Pump)

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How Helix Fuel Pumps Work! (Jerk Piston Variable Injection Pump)

Рет қаралды 134,629

saVRee

Күн бұрын

Пікірлер: 143

@savree-3d 2 жыл бұрын

Want to continue learning about engineering with videos like this one? Then visit: courses.savree.com/ Want to teach/instruct with the 3D models shown in this video? Then visit: savree.com/en

@freggo6604 2 жыл бұрын

Excellent explanation; and all without background music. I wish certain other KZfaqrs would follow your example!

@savree-3d 2 жыл бұрын

I personally hate background music 😀 It's a personal thing though, some people love it. Guess it's like Marmite.

@freggo6604 2 жыл бұрын

@@savree-3d Ah, Marmite. I used to work for Unilever ages ago but never had the pleasure of running into Marmite. Added to my Bucket List if I can find it in South Carolina :-)

@the510wagon 9 ай бұрын

Good animation. This style (non VIT) has fixed timing for the beginning of injection and only varies the end of injection. The VIT version of these pumps is controlled by a second rack & pinion that moves the barrel up and down, and therefore the height of the spill port, with respect to the helix. Another important feature not shown here is the puncture valve.

@dhananjaybhardwaj2032 Ай бұрын

He has only shown about the basic fuel pump with single helix maybe for 4S generator only

@ChevyConQueso Жыл бұрын

Solid animation and explanation.There's some other good ones, but this is the best I've come across so far.

@tylerdominelli3736 Жыл бұрын

7:17 - As a fairly newly licensed diesel mechanic who has, by nature, not had the pleasure of dealing with mechanical fuel systems simply because they are no longer around. That being said, my curious mind has always been baffled by the true impact of rack manipulation in terms of effective plunger stroke vs helix position. 10 out of 10. Clear, descriptive and intelligent.

@user-oz5yk9bm5c 9 ай бұрын

If you can buy a mercedes OM606 diesel engine, they use a mech fuel pump and are popular to modify. expensive but i think it would be very interesting for you.

@DuncanMargetts 2 жыл бұрын

Superb model and outstanding narrative, thanks!

@savree-3d 2 жыл бұрын

Thank you.

@tanvirahmedsarker95 Жыл бұрын

I usually don't comment on KZfaq videos. But now I can't help it, I must have to come here in the comment section and thank you! Great model and narrative Sir! Loved your pedagogy!

@savree-3d Жыл бұрын

I appreciate that!

@ChevyConQueso Жыл бұрын

Commenting actually helps these guys out a lot more than clicking the like button, so if it's something you enjoyed, throw these guys a bone. Take in mind that if it's something you don't like, commenting, even if you're telling them they suck, still helps them out with the algorithm.

@oguzoner3050 7 ай бұрын

Awesome explanation with very nice animation, Thank you for sharing this video, I have learned better from previous

@ranjumamachan5313 Жыл бұрын

Earned a subscribe. Beautiful explanation. I teach engines at the undergraduate level and this video was a more peaceful watch than watching a panda chew through a bamboo stick.

@savree-3d Жыл бұрын

Awesome, thank you!

@gerardoenriquelopezurquia89 3 ай бұрын

Great video! I already knew how it works, but for people that doesn't, is very clear now💯👍👌

@sauravsemwal7072 6 күн бұрын

You are amazing... Your work is superb..

@user-qc5ul4kj5f 10 ай бұрын

I love it . We need more videos like this with machinery and mechanisms aimed to marine engineers . I subscribe immediately. Thanks

@aurangzebkne5 11 ай бұрын

Thank you for make me understand this complicated mechanism through eassy explanation 🙏

@infinitysailor7948 6 ай бұрын

Great explanation

@priyanshu3899 Жыл бұрын

Need more topics related to Maine technology...this is very helpful

@Eternal_Sailor 5 ай бұрын

Excellent animation along with precise explanation

@md.amanatullahkhanlingkon700 2 жыл бұрын

the best video and explanation so far

@savree-3d 2 жыл бұрын

Thank you

@user-jd3jg3fd Жыл бұрын

Sir thank you so much it's very clear explained about individual fip system controlled fuel by governor fuel rack

@sys2 Жыл бұрын

Wow thanks for this! Working on a tractor that i think work on the same priciple and havent figured out how the pumps works on it =) now its all alot clearer =)

@savree-3d Жыл бұрын

You're welcome!

@NitinKumar-gj4tq 2 жыл бұрын

Thank you for the video... really great stuff !!

@duleethn3455 Жыл бұрын

Damn sir this is the best video i have ever seen about this mechanism ❤️🔥

@mxhxmd 6 ай бұрын

Wow thank your for this video. Very clear explanation.

@gvdilshan7555 2 жыл бұрын

This is amazing❤️❤️❤️😍😍😍🙊thank you very much for what you are doing for maritime industry😍🙊❤️❤

@savree-3d 2 жыл бұрын

No problem. Happy to help.

@tomkergil3304 11 ай бұрын

If Iunderstan correctly the quadrant will only be able to rotate less than 180° before fuel leakages begins from minimum injection volime to maximum injection volume. We never see the back of the helix to confirm full construction. Splendid animation. You might include fuel color to indicate pump pressure changes from low at fill, high during injection volumes, then revert back to low when leakage begins.

@anhvungoc2834 Жыл бұрын

very useful and easy to understand for new engineer!thanks

@savree-3d Жыл бұрын

You are welcome!

@md.arifuzzamansourav5041 Жыл бұрын

very understandable video.... thank u. please lay out another for Fuel injection valve of marine 2-stroke MAN B&W MC engine.

@ciCCapROSTi Жыл бұрын

Fascinating stuff.

@jogyx0 Жыл бұрын

Clear presentation and explained ❤👍🏻

@savree-3d Жыл бұрын

Thank you 🙂

@chowdhuryziauddin9002 7 ай бұрын

Excellent explanation, thanks

@Dmitri-tv2hc Ай бұрын

Very good.

@SJ-zu2wq Жыл бұрын

Nice video animation and explanation,thanks for sharing,hope we see more marine videos..

@velociaIN4944 Жыл бұрын

very helpfull🤙👍❤

@godlove91200 Жыл бұрын

Very very good explanation

@neilAneerGAmAI 2 жыл бұрын

Super video. Thanks 👍

@savree-3d 2 жыл бұрын

Thank you

@tanalafauzan 7 ай бұрын

Clever design and excelent explanation 🫡

@bhajan2kaka Жыл бұрын

That was such a good explanation

@crystalmarine5011 11 ай бұрын

Excellent work

@savree-3d 11 ай бұрын

Thank you! Cheers!

@arnavsharma7865 Жыл бұрын

Amazing video. Can you explain the difference between fuel pump of main engine and auxillary engine. Thanks

@MrLitonsutradhar Жыл бұрын

An eye opener and Nicely explained, thank u.just wanted to know what controls the rack and teeth arrangement and which control of the engine regulates this movement

@iambeloved496 Жыл бұрын

Very good and descriptive. Thank you.

@endlasaisreenivasulureddy823 Жыл бұрын

I wish u could have been my lecturer 😕🥺.. Nicely explained 😘

@andrepowell8859 Жыл бұрын

Great explanation! However, could have included the shut-off position.

@omerfaruk7451 8 ай бұрын

Thank you so much 🙏🙏

@chinnisaiprashanth8994 Жыл бұрын

How does the timing of this pump is adjusted?

@jakub8173 6 ай бұрын

It's not. In that particular example only amonut of fuel being injected can be adjusted. There are other types of jerk piston with second helix on upper edge which allows for adjusting timing but in very restricted limits only.

@yosrihardb9424 Жыл бұрын

GOOD ANIMATION

@shivamrajgor5490 Жыл бұрын

Explanation is very nice 🎉🎉 Which software you use for creating beautiful and working models I request you please tell me 🙏

@jasonloquinerio4143 2 жыл бұрын

I loved your work, Thank you so much! Can you make one for the governor? TIA.

@tristanbayman5788 2 жыл бұрын

Best visualisation!! I have a question about slow speed two stroke starting air system: what controls the timing for when starting air stops being admitted and fuel starts being injected when starting main engine? Would be awesome if you could make a video on air compressors, reefer compressors, cascade tank and condenser, cylinder heads and sewage treatment plant. Thank you from an Engine Cadet!

@savree-3d 2 жыл бұрын

Will put it on the list! Thanks for the suggestion and for watching.

@kanishkaroy3478 2 жыл бұрын

I could not find the exact answer actually. But this is what i think is most probable. The order of entry of starting air via starting air valve is controlled by the air distributor, which in turn follows a dedicated camshaft ( or sometimes just driven) for controlling air distributor only. This dedicated camshaft is again connected to the main camshaft which in itself executes a firing order i.e. sequence of firing of the engine units. Now I am assuming when the crankshaft attains enough rpm the pneumatic signal (low pressure air starting signal) which allows the bottle air to pass onto pilot valve and main air starting valve ( via automatic valve)is blocked just before the air control valve, ceasing the whole system operation. Now how this air signal is stopped I am not sure of....maybe it is controlled by a master and slave electronic controller which takes feedback from the rpm meter.

@hanruobing6924 Жыл бұрын

We are manufacturer specialized in auto and marine diesel engine parts since 1952. Our main parts are EURO II system: plunger, nozzle , delivery valves, head rotors, repair kits, etc. Common rail system: Injector complete and injector spare parts for CATERPILLAR, DENSO, DELPHI , BOSCH, SIMENS, CUMMINS, etc. If you have any inquiries, pls do not hesitate to contact me.

@byzantios76 Жыл бұрын

Very understandable video thanx a lot.i have a question.where does the fuel go from the split outlet?

@dattatraysutar2885 Ай бұрын

What is the shut position , ideal position and full load position

@suchcone 2 жыл бұрын

Amazing visualisation! What I'm missing is understanding where the lifting force comes from, where the movement of the rack is controlled (does the engine adjust the rack depending on how much fuel it needs?), And what happens to the fuel that spills out - does it drain away or is there a tank? Presumably it doesn't go to waste :)

@kanishkaroy3478 2 жыл бұрын

Allow me to answer. The lifting force comes from a cam and follower arrangement. The follower pushes the plunger up and down as it is controlled by the cam on the camshaft, the camshaft in turn is controlled by the engine crankshaft. The camshaft thus controls the firing order i.e the timing of the fuel injection. Now the rack movement (which controls the quantity of fuel to be delivered ) is connected to the governor which as we know works as per the load on the engine. As per the fuel that spills out I am assuming it meets the end of the re-circulation line and goes back into the buffer tank( not sure though)

@AvinashYadav-sg8cs Жыл бұрын

@@kanishkaroy3478 hey thanks explanation regarding the rack movement was excellent and simple.

@hanruobing6924 Жыл бұрын

@tylerdominelli3736 Жыл бұрын

The answer to your question is the governor. A system of weights incorporated into the pump body, driven by the pump-cam act on the governor arm, which in turn alters the position of the rack depending on operator demand. Check out the Cummins p7100, it’s a super simple system but very clear.

@tylerdominelli3736 Жыл бұрын

Furthermore, the excess fuel is referred to as “return”. The post injection event which essentially is the fuel driven through the spill port by way of the pump spring is recycled to the reservoir. If properly filtered and separated from any moisture before hand, the excess fuel should be safe to head straight to the tank, in a well serviced fuel system, of course.

@shubhamsinha5389 Жыл бұрын

thankyou

@user-wk3rw2ep9f Жыл бұрын

도움이 많이 되네요~

@syedisam2603 Жыл бұрын

Please make videos on types of fuel injection system

@user-cg7bd2wr6x 9 ай бұрын

I have read somewhere that the Vertical groove needs to have more length than the piston stroke. Why this happen?

@anandashok4444 Жыл бұрын

This was really very hard to understand. Thanks for helping

@howardlang7636 5 ай бұрын

What happens if the orientation of the the plunger is 180 deg out in relation to the sleeve?

@nihaldsouza8215 Жыл бұрын

What causes the plunger to move up and increase the pressure of fuel?

@priyanshu3899 Жыл бұрын

The Cam is provided below the plunger.when the cam in profile the plunger pushes up..

@Harindu101 Жыл бұрын

thank you sooo much

@fmcookandtasteshow5176 Жыл бұрын

Good day sir..if the injection pump..perform low pressure..is it possible that the plunger is the problem sir?..

@yuvaraj1386 Жыл бұрын

When the plunger is down both inlet and outlet port is uncovered and why there is no injection when the plunger is down and both ports are uncovered

@jidendrap3745 Жыл бұрын

Thankyou somuch ❤️❤️❤️❤️❤️❤️❤️

@savree-3d Жыл бұрын

Most welcome 😊

@JohnDobak 2 жыл бұрын

What gave rise to this style of pump? Why is it used over more conventional fuel pump designs? How does it rank on efficiency?

@savree-3d 2 жыл бұрын

It's basically a piston pump with the main difference being the helix. I would need to check concerning efficiency. Its a genius design, that much I know! 😀

@hanruobing6924 Жыл бұрын

@christiane.fortaliza4635 Жыл бұрын

Does the governor controls the rack? Anyway, superb video. Subscribed.

@hanruobing6924 Жыл бұрын

@priyanshu3899 Жыл бұрын

Yes

@GrahamGalloway Жыл бұрын

Hi Savree. Very well explained and easy to follow, great video. Just one question on this type of pump, what would cause the engine to maintain full revvs when the accelerator has returned to the idle position? Can you advise what components I could check? Seems like a component is sticking in the open position? Thanks in advance.

@noeramos6157 Жыл бұрын

Did you ever get an answer for that issue because I’m having the same problem with my tractor stuck at full throttle?

@moonanpom 10 ай бұрын

stuck rack and or p/b @@noeramos6157

@lph9164 Жыл бұрын

If we adjust vertical groove of the plunger just infront of the spill port.The fuel injection will totally stop

@alexkayidri7411 Жыл бұрын

Very fascinating. Clearly understood. Can that be set to specific position? I have two piston engine generator that uses two of this pumps is currently troubling me with fuel economy and low power. There appears to be incomplete combustion. Could that be problem with fuel pump? Kindly assist with advise.

@alexbowie6316 7 ай бұрын

So this is the basic pump invented by Bosch for diesel fuel injection? Licensed to other companies like Zexel, Diesel Kiki and Yanmar?

@alexkayidri7411 Жыл бұрын

Hi. Is the plunger intial position set manually or it is done by the governor?

@foodtravelbydevacaterseven4219 2 ай бұрын

Sir please explain me overhaul time position control rak and rotate gear

@Robert-ev5hp Жыл бұрын

How do you set the marks between the rack and the plungers

@jackryan6617 3 ай бұрын

good

@user-nd2ql1nq5p Жыл бұрын

After i change all helix fuel pump. Engine not stop until i close fuel line.. how i can fixed

@franciscoaguero9028 Жыл бұрын

Where does fuel from spill port goes?

@Rahul-tg4uu Жыл бұрын

Please explain function of deflector on fuel pump

@sherazkhan-rk1be 11 ай бұрын

How suction valve works?? Why there is suction valve and not in the generator fuel pump

@sumanmondal8261 Жыл бұрын

Please create a VE Rotary fuel pump animation

@user-te7fq5ng8o Жыл бұрын

This is good but explain the operation of the All parts please

@mliittsc63 2 жыл бұрын

So...am I correct in thinking that the reciprocation of the plunger is caused by something not shown? Is the thing causing the reciprocation also controlling the timing? Since the amount of fuel pumped per cycle is controlled by the position of the quadrant and rack (and hence the helix), am I also correct in thinking that the length of stroke of the piston is constant?

@savree-3d Жыл бұрын

Stroke is constant. The pump is operated by the camshaft.

@hanruobing6924 Жыл бұрын

@gertkristensen6451 10 ай бұрын

what about the vacuum that occurs. it will lock piston

@hamengkubumi Жыл бұрын

Is the tilt degree of plunger affects the oil distribution?

@hamengkubumi Жыл бұрын

May i have your email? For consultation purpose 🙏

@prakashk9162 Жыл бұрын

SIR RETURN FUEL WILL GO BACK TO WHERE ,AFTER SPILL PORT THAT EXCESE FUEL WHERE ITS GOING?

@hellkell8693 7 ай бұрын

Probably back to the fuel tank. The excess fuel will cool the pump n

@youngsinatra69 Жыл бұрын

Sir, the fuel quantity is changing or not? Because we vary the timing so that our efficiency increase in low load conditions and more power is generated. But if we send more fuel than there this objective is not achieved. Please clear my doubt.

@priyanshu3899 Жыл бұрын

Bro..i didn't get ur question.. Fuel quantity is controlled by governor by means of rack and pinion mechanism.. Govrrner moves the rack and plunger will rotates.. This rotation of plunger contols and amount of fuel going to injector

@naveenharish7151 2 жыл бұрын

Hi sir

@savree-3d 2 жыл бұрын

Hi Naveen

@Danielagostinho21 2 жыл бұрын

9:03 Isn't it more convenient to have them together since it's easier to have only one rack commading all pumps?

@hanruobing6924 Жыл бұрын

@mec6953 2 жыл бұрын

marine engineering 😍😍😍😍😍

@ChiefEngr-GabsonAcademy Жыл бұрын

I need to support your efforts: how do I donate?

@savree-3d Жыл бұрын

Visit courses.savree.com and buy a course! 😀

@siggyincr7447 Жыл бұрын

Some tractors work with this sort of pump as well.

@reuben.holmes.9690 6 ай бұрын

Unloader valve,?

@Nancy28368 2 жыл бұрын

Make a video on working of Tower bridge Steam engine and Bascule drive engine

@savree-3d 2 жыл бұрын

Steam engine is planned. Will note the others.

@bsrt_agustinmarkanthony2208 Жыл бұрын

do some video about injector

@savree-3d Жыл бұрын

It is planned. 3D model being made now.

@khaingo1502 Жыл бұрын

4:52

@adminadmin8992 2 жыл бұрын

Why this have so little views?

@savree-3d 2 жыл бұрын

Niche market. Happy with what we get. Don't want to be greedy 😂

@adminadmin8992 2 жыл бұрын

@@savree-3d You are similar to Lesics on KZfaq.

@imwhatim7259 28 күн бұрын

I think I can make a spray paint gun using this pump

@hellkell8693 7 ай бұрын

He says to comment and if there are questions he will try to answer. No answers though.

@vijaymaghade_Official. Жыл бұрын

Chhan

@hainguyenofficial2743 4 ай бұрын

❤

@aromalaromal212 Жыл бұрын

💞

@terrirasmussen2442 2 жыл бұрын

Ｐ𝐫Ｏ𝕞Ｏ𝓢ｍ 😥