Car Parts Hybrid Mechanical Technology and Simple Gasoline Engine

Parts Of the Hybrid and Normal Car


Hybrid Car:

Gasoline Engine:

 

Mechanical engineering

Drilling: Introduction

Drilling is easily the most common machining process. One estimate is that 75% of all metal-cutting material removed comes from drilling operations.

Drilling involves the creation of holes that are right circular cylinders. This is accomplished most typically by using a twist drill, something most readers will have seen before. The figure below illustrates a cross section of a hole being cut by a common twist drill:

The chips must exit through the flutes to the outside of the tool. As can be seen in the figure, the cutting front is embedded within the workpiece, making cooling difficult. The cutting area can be flooded, coolant spray mist can be applied, or coolant can be delivered through the drill bit shaft. For an overview of the chip-formation process, see the Chip Formation Section.



The characteristics of drilling that set it apart from other powered metal cutting operations are:

    * The chips must exit out of the hole created by the cutting.
    * Chip exit can cause problems when chips are large and/or continuous.
    * The drill can wander upon entrance and for deep holes.
    * For deep holes in large workpieces, coolant may need to be delivered through the drill shaft to the cutting front.
    * Of the powered metal cutting processes, drilling on a drill press is the most likely to be performed by someone who is not a machinist.



A view of the metal-cutting area of a drill press is shown below. The workpiece is held in place by a C-clamp since cutting forces can be quite large. It is dangerous to hold a workpiece by hand during drilling since cutting forces can unpredictably get quite large and wrench the part away. Wood is often used underneath the part so that the drill bit can overshoot without damaging the table. The table also has holes for drill overshoot as well as weight reduction. A three-jaw chuck is used since three points determine a circle in two dimensions. Four-jaw chucks are rarely seen since offset of the bit is not necessary. The next section contains illustrations of drill bit chucks. To get an idea of the differing configurations of three and four-jaw chucks, please see the equivalent lathe chucks.

NEW 4 STROKE IN MECHANICAL ENGINEERING

New 4 Strole Engine

It is bascially related to the change in the air-fuel mixture in a 4 stroke engine.

The first prototype, based on a 1 cylinder engine, had 2 of them, connected with a chain. I had many doubts about resonance problems before I made it. Surprisingly it worked very smoothly, without any flirt or vibrate. Match worked stably exclusively and quietly. I have observed it only that change of part of tension of indirect chain one part of chain was tense  before firing of  engine - pulling  opposite side when started This chain have been transmitted  after firing  in active time on other part tense , showing  that rotary moment proceeds from timing crankshaft  FOR main crankshaft. I have concluded from observation of work of engine, that match quietly CAN have two "crankshaft timing" There can be either one or two crankshafts ,but as I had been building the second prototype, I decided that one crankshaft would be a more elegant solution. Here comes also a very fundamental issue - to choose an angle between arm-cranks. It's a timing crankshaft, and must have not necessarily that 90......

HORIZONTAL STIRLING ENGINE IN MECHANICAL ENGINEERING

AIM:
The project i want to make in the final year of Mechanical Engineering....

NAME:
It is basically the horizontal stirling engine.
It is excellent engine.

WORKING:
It works on the compression and  expansion of the gas in the cylinder.

HOW WE WILL WORK:
First of all we will make a CAD program. And make sure that the size and location suits my mill and material.
Now we will make the different parts of he engine. And in the last we will assembled them.


THIS IS NOT SO SIMPLE AS I AM TALKING ABOUT IT!!!!!!