Posts

Engine Head Parts (Cylinder Head)

-
 y The engine head, also called the cylinder head, is the top part of an internal combustion engine. It closes the top of the cylinder and forms the combustion chamber where fuel burns to produce power. Main Parts of the Engine Head Cylinder Head Covers the top of the cylinder. Houses the valves, spark plug, and combustion chamber. Inlet Valve Allows the air-fuel mixture to enter the cylinder during the intake stroke. Exhaust Valve Releases burnt gases from the cylinder during the exhaust stroke. Spark Plug (Petrol Engine) Produces a spark to ignite the compressed air-fuel mixture. Valve Springs Return the valves to the closed position after opening. Rocker Arm Transfers motion from the camshaft to open and close the valves. Camshaft Controls the timing of opening and closing of the inlet and exhaust valves. Combustion Chamber Space where the air-fuel mixture burns to produce power. Head Gasket Seals the joint between the cylinder head and engine block. Prevents leakage of gases, c...
Post a Comment
Read more

Four Stroke Diesel Engine:

-
 Four Stroke Diesel Engine: Theory A four-stroke diesel engine is an internal combustion engine that converts the chemical energy of diesel fuel into mechanical energy. It completes one operating cycle in four piston strokes and two crankshaft revolutions (720°). Unlike a petrol engine, a diesel engine uses compression ignition, so it does not require a spark plug. Only air is drawn into the cylinder during the intake stroke, and diesel fuel is injected at high pressure near the end of the compression stroke. Working Principle 1. Suction Stroke During the suction stroke, the inlet valve opens while the exhaust valve remains closed. The piston moves from Top Dead Centre (TDC) to Bottom Dead Centre (BDC), creating a vacuum that draws fresh air into the cylinder. 2. Compression Stroke Both the inlet and exhaust valves remain closed. The piston moves from BDC to TDC, compressing the air to a very high pressure. This raises the air temperature to about 500°C to 700°C, making it hot enou...
Post a Comment
Read more

Motor driving school

-
Image
  How a simulator helps you before you start driving The need for simulators As per the Motor Vehicles Act and the CMVR, a trainee is supposed to master driving skills by spending 10 hours training on the road. It is not easy for a novice to acquire the necessary skill level within such a short span of time. Therefore, to save on the limited time available, Maruti Suzuki Driving School has developed and started using simulators. Challenge for the trainee.                                                             Driving on Indian roads can be a challenging experience for a trainee. One needs to deal with a variety of risks and significant pressure while driving on the road. Therefore, it is necessary that a novice learns to master different controls such as steering, pedals and gears, one at a time. Although this speeds up lear...
Post a Comment
Read more

Four Stroke Diesel Engine

-
Diesel Cycle – Diesel Engine In the 1890s, a German inventor,  Rudolf Diesel  has patented his invention of an efficient, slow burning, compression ignition, internal combustion engine. The original cycle proposed by Rudolf Diesel was a constant temperature cycle. In later years Diesel realized his original cycle would not work and he adopted the constant pressure cycle, which is known as the  Diesel cycle . Four Stroke Diesel Engine Diesel engines may be designed as either two stroke or four stroke cycles.The four stroke Diesel engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning a crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either direction. Therefore each stroke does not correspond to single thermodynamic process given in chapter Diesel Cycle – Processes. The four stroke engine comprises: the intake stroke – The piston moves from top dead center (TDC) to bottom dead center...
Post a Comment
Read more

Chapter - XII Miscellaneous

-
    477. Refund of Fees :-  Subject to the provisions of Rules 478 and 479 the Secretary, State Transport Authority or the Secretaries or Additional Secretaries of the Regional Transport Authorities as the case may be, may on application, sanction the refund of: (i) the full fee paid; where the conductor’s Licence, the driving Licence or badge applied for is refused or the application for the conductor’s Licence, the driving Licence or badge is cancelled or withdrawn by the applicant before the conductor’s Licence, the driving Licence or badge, as the case may be, is actually issued and the transaction completed:- (ii) the excess, where the amount paid is in excess, of the proper fee; (iii) the full fee paid, where the fee was paid by mistake; and (iv) the full fee paid, where the notification in respect of a route issued by a Transport Authority is subsequently withdrawn for technical reasons, or where the remittance of the fee is not followed by an application for the p...
Post a Comment
Read more

Chapter – XI CLAIMS TRIBUNALS

-
    455. Applications:-  Every application for payment of compensation made under Section 166 shall be made in Form C.I.D. and shall be accompanied by the fee prescribed three for in Rule 475. 456. Examination of the applicant :-  On receipt of an application under Rule 455 the Claims Tribunal may, examine the applicant on oath and the substance of such examination, if any, shall be reduced to writing. 457. Summary dismissal of application:-  The Claims Tribunal may after considering the application and the statement if any, of the applicant recorded under Rule 456 dismiss the application summarily. If for reasons to be recorded, it is of the opinion that there are no sufficient grounds for proceeding therewith. 458. Notice to parties involved :-  (1) If the application is not dismissed under Rule 457, the Claims Tribunal shall send to the owner of the motor vehicle involved in the accident and its insurer, a copy of the application, together with a notice ...
Post a Comment
Read more

Chapter IX Insurance of Motor Vehicles against third party risks

-
    451.Insurance Certificate – Requisite condition for issue of permit :-  No permit shall be issued in respect of any transport vehicle unless it is covered with a valid certificate of insurance and satisfied the requirements of Chapter XI of the Act. 452. Insurance certificate, pre-requisite condition for payment of motor vehicles tax :-  The owner of a motor vehicle applying to pay the tax on the vehicle shall forward with the application a certificate of insurance relating to the vehicle and complying with the requirements of Chapter XI of the Act and valid,-             (a)     if the application is made prior to the commencement of the period for which the tax is tendered, on the                      first day of that period; or         ...
Post a Comment
Read more