Practical Valve Timing Diagram Hindi || Valve timing diagram for 4 stroke petrol Engine
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- Опубліковано 11 жов 2024
- #sscje #mechanical #gearinstitute
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In a piston engine, the valve timing is the precise timing of the opening and closing of the valves. In an internal combustion engine those are usually poppet valves and in a steam engine they are usually slide valves or piston valves.
Valve overlap
With traditional fixed valve timing, an engine will have a period of "valve overlap" at the end of the exhaust stroke, when both the intake and exhaust valves are open. The intake valve is opened before the exhaust gases have completely left the cylinder, and their considerable velocity assists in drawing in the fresh charge. Engine designers aim to close the exhaust valve just as the fresh charge from the intake valve reaches it, to prevent either loss of fresh charge or unscavenged exhaust gas. In the diagram, the valve overlap periods are indicated by the overlap of the red and blue arcs. Key:
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Inlet Valve is bigger because it helps in increasing Volumetric efficiency
Achha 👏👍
Nice comment.
Sir Intlet valve is bigger than exhaust valve,because to allow the sufficient amount of airfuel mixture to get in the cylinder.
google kiya :)
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300k + bro but i think the subscribers will be in millions..🤔
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Sir apaka gyan hme babhut kuch sikha gya
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jhakaasss padharela hai guru
aapun bhi padhega ab gear institute me bidu
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Inlet valve is bigger
Because whenever exhaust stoke during not exhaust comes to inlet valve
And inlet valve is more suck the air fule
So................
.
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Thank you sir for this knowladge
I regrated that why didn't see your channel
Sir aap mahaan ho sir ❤
Hello, I have a Tata Indigopetrol car. I could not adjust the cam sensor on the cam pulley because there is no mark. Please help.
You have not explained the reason for deviation of valve opening/closing time from theroetical
Go and read the book
sir two stroke engine valve timing daigram pe video banaiye
Sir outlet valve is also bigger than inlet valve
फोर स्ट्रोक डीजल इंजन पंपसेट के के बारे में भी विस्तृत जानकारी पर वीडियो बनाएं
Brother kn SA cycle kha uses hota ha in engine. jasay k jenbacher engine ma miller cycle uses hota ha or inlet value compression ma b open ho Jata ha(due to high performance) assay hi baqi cycle ma bi bata dana plz tell me
Awaiting your response
Sir 25 baar khulega valve kyuki 2 rotation mea ek baar khulta hai tho 50 rotation mea 25 baar khulega
Selection ho gaya aapka
tera enthusiasm bada sahi he bro
Sir engine ka body oil cylencer se bahar kyo jata hai plz tell me sir piston bhi naya dala hai or valve bhi dono naye hai
Yes sir, inlet valve बडा होता है exhaust valve से because jyada se jyada charge अंदर आये ओर exhaust मे से जाणे
वाली बर्न गॅसेस के साथ cylinder मे आया हुआ चार्ज निकल ना जाय |
Acha, valve timing overlap matlab dono valve ka ek he samay me open rehna. Aur aaj yeh v jana ki inlet valve zyada bara hota h qui ki zyada air suck kr ske
Sir Automatic gear ke bare me batao kaise kaam karta hai sahi se samajh me nhi aata hai usme 1 number kaunsa hai baaki number kaunsa paart kaam karta hai
Sir Actual or theoritical mai difference kyu hota h kya reason h??
Best video
Sir CI engine pe video kro koi
Bhai ak engine ki fireing order kasa sat karta ha uska upar video banawo
Inlet valve big compare to exhaust volumetric efficiency increase
Sir , How can we remove this actual valve timing diagram. Because , I think it is a one kind of disadvantage. Please reply me
Sir now a days in multi cylinder the valve timing diagram should changed as per the RPM what's the reason behind
Great explanation
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Super 👌
Sir iska gear ratio kesa hoga🤔
Please ek video banayeh🥰
Sir please make video on potential function and stream function in Fluid mechanics... Please please
Sir last question agar inlet valve 20 degree before tdc mai open ho raha hai or idar exhaust 10 degree after tdc ho raha hai to is hisab se exhaust 10 degree before tdc mai hona chahiye na qki suction toh 10 degree pehle ho raha hai lekin baad mai suction after 10 degree tdc ho raha hai???
??
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@@gear.instituteplz bata dijiye sir
An inlet valve is always bigger than an exhaust valve because air is sucked in unless turbo where it is blown in.
Exhaust pressure high hone SE or atmospheric pressure high hone SE exhaust air aaram se atmosphere me chali jati he to exhaust valve chhota Hota he, usme koe dikkat Nahi aayegi
And inlet valve bada because vacuum created during suction so easily air fuel run is it right both?
To sir ek hi crankshaft nahi hote na 4-5 crankshaft move hote hai I think so 50 rps hota hoga
Inlet valve bada hota hai
Sir ap degree bata rahe ho lekin piston degree mai kaisa open close ho raha hai or piston toh linear motion mai hai up down idr degree kaisa??
Degree Crankshaft ki hoti hai
Vahi to piston ko uppar niche karta hai
@@gear.institute thank you Sir
sir this diagram for which type of engine petrol or diesel
For all 4 stroke engine petrol and diesel
Nice explanation sir👍👍👍
Super
Lovde🔥🔰
Nice vidio
Sir high rpm pe piston or valve k bich mai takkar ho sakta hai.
Kabhi nahi... Jis din takkar hogi us din engine fat jayega...
Inlet valve
Nice
Glad to help you
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Sir aapka aavaj saf nahi aa raha please khuch upay karo or sir exam me konsa likna he?
Ye purani video hai
Mic change kar diya tha
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Ohhh thanks sir
Thanks for your help
Sir outlet valve has bigger than inlet valve
This is amazing 😯😯😯
Port timing diagram explain pls
Sir inlet valve is bigger than outlet valve in four stroke engine
Exhaust valve is bigger than inlet valve because ..input power < output power
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Out let valve sir
Thank you Sir☺
Sir inlet valve is greater than outlet valve
Inlet valve big
Human heart 😇
Sir compression
I. V big
Inlet valve is a biggest valve
Inlet valve is bigger then outlet valve
What language is the presenter speaking? Would like to have this translated.
Main base is US Army old videos... That videos are in English language, for better understanding of sudents, this gentleman convert audio in Hindi (National language of India) and play the video....
This is gentle try to give a cristal clear knowledge for local students of India... You can find all oroginal videos with english sound track at US army websight.
Inlet valve is big because hamari body aur engine me jaha se fuel jata hai woh jagah badi hoti hai
Typically, the exhaust valves are larger than the intake valves. This is because the exhaust gases are much hotter and under higher pressure than the incoming air and fuel mixture.
Out let
outlet valve is big.
Inlet valve 😊
Thanks dada
Exhaust wall
Super bro ❤
Sir ager ivo ko thoda advance karde or evo ko thoda retire karde to kya hoga
Engine performance ki vat lag jayegi...
Intake valve Diameter is big than outlet valve.
Inlet Valve is bigger than outlet valve because metal is expand during it's heating.
Inlate valve bada hota haii 😊
big size exhaust valve
Inlet valve biggest than exhaust valve
Inlet valve > exhaust valve
Inletha valve
Sir wo 3000/60 minutes = 50 round of 1 minutes
Inlet valve is much bigger than exhaut valve
1 second ma crank 100 or valve shaft 50 bar srkl krti ha
इनलेट वाल्व बड़ा होता है सर जी....
Obviously inlet valve
inlet valve bada hota hai
Exhaust valve isliye chota kiuki jo air hai vo fast ja sake
जो नहीं होता है उसे कभी मत बताओ जो होता है उसी को बताओ दिमाग घूम जाता
Mere khyal se :- Outlet valve bada hota hai aur inlet valve chota hota hai before combustion fuel+air spray hokr andr ayengee aur after compution gases bahar ko escape hongi toh jyada better rehega ki gases easily bahar escape hojayee taaki piston prr load naa pade (efficiency acchi hongi issey ) . Aap log kya sochtee hai 👀🙂
Iv bada hota he bhau 🇮🇳
Bro yahan per petrol engine ki bat ho rahi hy air fuel spray diesel engine main hota hy
@@tahirtahirmahmood9161 bhai diesel engine me air alag se aati hai aur fuel injector se diesel spray Kiya jata hai
@@tahirtahirmahmood9161be tere chapet marunga petrol engine me hi air +fuel dono ek sath ate he deisle engine me only air ati he bete
Inlet valave bada hothe exhaust valve se compare karthe tho
Inlet valve ⚒️⚒️⚒️
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1500 rpm
Sir ye jo overlap hai wo BDC pe kyu nhi hota whan bhi dono valve ek sath open hai use kyu nhi khte overlap???
Kyunki wo dono alag alag stroke ke time hue hain for eg. Inlet valve late closed hota hain compression stroke ke time or exhaust valve jaldi open hota hain power stroke ke time
Exhaust valve bada hota he
Inlet valve bda hota h
Inlet valves big and exhaust valve small
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Outlet
But inlet 20 digree phle hi kyu opn ho jata h
Inlet bada hota hai
in let wall
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👍
Inlet valve more big size
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