VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota, similar in performance to the BMW's VANOS. The Toyota VVT-i system replaces the Toyota VVT offered starting in 1991 on the 5-valve per cylinder 4A-GE engine. The VVT system is a 2-stage hydraulically controlled cam phasing system.

VVT-i, introduced in 1996, varies the timing of the intake valves by adjusting the relationship between the camshaft drive (belt, scissor-gear or chain) and intake camshaft. Engine oil pressure ....etc

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Describe the thermal jet engine and the chemical rocket engine stating clearly the difference between them ....etc

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MPFI ( multi point fuel injection system ) Vs CRDI(Common rail direct injection system)

(Actually an open office format. Use open office to open it)
MPFI : mean multi point fuel injection system ie. in petrol engine for gaining more uniform Air Fuel blending fuel is injected at various point in the path of air. this tech is used in light weight car running on petrol. there is also milage improvement due to this.

but in case of DTSI(digital twin spark ignition) : the
engine cylinder consist of two no of spark plu ....etc

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Sir, describe the VVT WORKING IN VECHICLE, Explain in malayalam languages ....etc

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to get information about the topic combustion process in si engine full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-alternative-fuels-for-si-engine

http://seminarsprojects.net/Thread-design-and-analysis-of-connecting-rod-4s-s-i-engine?pid=19386&mode=threaded

http://seminarsprojects.net/Thread-dts-si-engine-full-report ....etc

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.doc IMPROVEMENT OF THERMAL EFFICIENCY BY RECOVERY OF HEAT FROM IC ENGINE EXHAUST (THERMAL SCIENCES).doc (Size: 1.3 MB / Downloads: 1071)

IMPROVEMENT OF THERMAL EFFICIENCY BY RECOVERY OF HEAT FROM IC ENGINE EXHAUST
(THERMAL SCIENCES)
CONTENTS:
1. ABSTRACT
2. INTRODUCTION
3. PRINCIPLE OF HEAT RECOVERY FROM IC ENGINE
4. NECESSITY OF THERMAL STORAGE SYSTEM
5. LATENT HEAT THERMAL STORAGE SYSTEM
6. EXPERIMENTAL SETUP
7. RESULTS AND DISSCUSSIONS
8. PERFORMANCE CHARACTERISTICS STUDY
9. CONCLUSION
IMPROVEMENT OF THERMAL EFFICIENCY BY RECOVERY OF HEA ....etc

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VVT-i, or Variable Valve Timing with intelligence, is an automobile variable valve timing technology developed by Toyota, similar to the i-VTEC technology by Honda. The Toyota VVT-i system replaces the Toyota VVT offered starting in 1991 on the 4A-GE 20-Valve engine. Perodua use this technology and convert the name to DVVT(Dual Variable Valve Timing). The VVT system is a 2-stage hydraulically controlled cam phasing system.

VVT-i, introduced in 1996, varies the timing of the intake valves by adjusting the relationship between the camshaft dri ....etc

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hi
you can refer these pages to get t he details on vvt

http://seminarsprojects.net/Thread-vvt-i--2151

http://seminarsprojects.net/Thread-vvt-i--6511

http://seminarsprojects.net/Thread-vvt-i-or-variable-valve-timing-with-intelligence

http://seminarsprojects.net/Thread-vvt-i-or-variable-valve-timing-with-intelligence?page=2 ....etc

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need detailes about upsetting process in engine valve manufacturing ....etc

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1. INTRODUCTION
Rocket engines that work much like an automobile engine are being developed at NASA s Marshall Space Flight Center in Huntsville, Ala. Pulse detonation rocket engines offer a lightweight, low-cost alternative for space transportation. Pulse detonation rocket engine technology is being developed for upper stages that boost satellites to higher orbits. The advanced propulsion technology could also be used for lunar and planetary Landers and excursion vehicles that require throttle contr ....etc

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