Short Description about Engine Valve


Short Description about Engine Valve

Welcome to carpricebd.com. Today we want to discuss Short Description about Engine Valve. We all know that the Engine Valve is very much important components of a motor car. So we (carpricebd.com) try to share some information for our readers.

Engine Valve:

 

A valve is a device that regulates, directs or controls the flow of a fluid (or gas) by opening, closing, or partially obstructing various passageways. Valves form an integral component of an internal combustion engine and every cylinder in an engine atleast has two of them, i.e. an intake (intake of fuel-air mixture) and an exhaust valve (exhaust gases). A multi-valve engine can have three, four and sometimes five valves. Multi-valve engines generally promise increased efficiencies for fuel combustion. These days with BSIV emission norms in place most engine designs have a four valve system in place, two for intake of fuel and air and two for exhaust gases.

The opening and closing of valves is precisely timed to allow the engine to run efficiently in all conditions. In a four stroke engine, the intake valve(s) open up at the start of the suction stroke and the exhaust valves open up during the exhaust stroke when the piston returns from BDC to TDC.

The valves remain shut during compression and power strokes. The opening and closing of the valves are cam operated and various engines are further differentiated by positioning of the valve camshaft (OHV/OHC).

OHV(Overhead Valve) is an engine design where the camshaft is installed inside the engine block and valves are operated through lifters, pushrods and rocker arms, whereas OHC is a design where the camshaft is installed in the cylinder head and valves are operated by rocker arms/lifters. In case of a 4 valve engine, a DOHC design is used, where two parallel camshafts operate the intake and exhaust valves respectively.

As stated earlier, the function of the valve is to control the pressure of the gas on one side. The engine valve must be tight enough at all times. This valve cannot withstand stress if not rigid. The valves have to withstand a lot of pressure and heat, it is easy to guess. Inlet valves are always made with nickel-chrome steel. These valves are also made with chromium steel or stainless steel today. Along with it carbon carbon and manganese are also used. The Eggsot valve is made by Nicket Steel.

 

Valve Seating:

 

The valve seat in an internal combustion gasoline or diesel engine is the surface against which an intake or an exhaust valve rests during the portion of the engine operating cycle when that valve is closed. There are several ways in which a valve seat may be improperly positioned or machined. The normal cast iron cylinder valve valve does not work. But special alloy steel seating is no longer viable. They are mounted with screws or pressed together with cinder. Many engine valves are made of a richer material called seating. Those seats are quite stiff - a special cutter is used to cut them.

 

The sum of the valves:

 

A method of operating the valves of an internal combustion engine having a plurality of cylinders and a plurality of intake valves and a plurality of exhaust valves for each cylinder of said engine comprising the steps of for a low speed rotation of said engine placing a part of each of said intake valves and said exhaust valves in a first mode of operation and another part of each of said intake valves and said exhaust valves in a second mode of operation different from the first mode of operation the first mode of operation allowing both the intake and exhaust of more gases through the intake valves and exhaust valves respectively than the second mode of operation for medium speed rotation. Normally, the valve seat is formed by placing the angle seat at an angle of 3 degrees. These valves have multiple, one to many times. If the valve is multiple, its angle is correct and its function is better. In most cases engine valves are made by stopping valve seats or multiple seats with special screws.

 

Overhead Valve:


An overhead valve (OHV) engine, sometimes called a pushrod engine, is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located below the combustion chamber in the engine block. The camshaft in an OHV engine is located in the engine block. The motion of the camshaft is transferred using pushrods, and rocker arms to operate the valves at the top of the engine.

Technically, an overhead camshaft (OHC) engine also has overhead valves, however to avoid confusion, OHC engines are not usually described as overhead valve engines. Some early "intake over exhaust" engines used a hybrid design combining elements of both side-valves and overhead valves. While describing the cylinder before, it has been said that many times, multiple wells of different cylinders are connected by a tube and an overhead valve is placed on it. So the pressure falls on the overhead valve. It needs to be made of special hard metal to keep the pressure high. The higher the number of cylinders on the block, the higher its value. As a result, the overhead valve needs to be strengthened.

The size of the overhead valve is larger than that of the normal valve. His seat is larger - his strength also needs to be increased. Over-head valves are usually made of special kind of steel mixed with nickel chromium. It is angled at the mouth of the pavement and is formed by attachment to the nut and screw These valves are more commonly used in Ford engines. The overhead valve is usually angled. Different types of engines have different types. Here is a picture of the overhead valve.



Latest Articles List

Operation Cycles of the Internal Combustion Engine

Operation Cycles of the Internal Combustion Engine Welcome to carpricebd.com. Today we want to discuss Short Description about Short Description about Operation Cycles of the Internal Combustion Engine. We all know that the the main components of the internal combustion engine have been described. Now that explains how they work. The complete cycle of this type of engine is divided into four bugs.1. Suction stroke.2. Compression Stroke3. Expansion stroke.4. Exhaust stroke or gas exhaust stroke.Suction strokes are only air purified, compressing stroke by heating the air to 450/550 pounds per square inch when it heats

Short Description about Gas Inlet, Exhaust Pipes and the Mechanism of Action of the Engine

Short Description about Gas Inlet, Exhaust Pipes and the Mechanism of Action of the Engine Welcome to carpricebd.com. Today we want to discuss Short Description about Short Description about Gas Inlet, Exhaust Pipes and the Mechanism of Action of the Engine . We all know that the Short Description about Gas Inlet, Exhaust Pipes and the Mechanism of Action of the Engine is very much important components of a motor car. So we (carpricebd.com) try to share some information for our readers.Gas Inlet :The invention relates to a gas inlet or gas outlet device for an internal combustion

Short Description about Cam shaft

Short Description about Cam shaft Welcome to carpricebd.com. Today we want to discuss Short Description about Cam shaft . We all know that the Cam shaft is very much important components of a motor car. So we (carpricebd.com) try to share some information for our readers.A camshaft is a shaft to which a cam is fastened or of which a cam forms an integral part. Depending on the location of the camshaft, the cam operates the valves either directly or through a linkage of pushrods and rockers. Direct operation involves a simpler mechanism and leads to fewer failures

Short Description about Fly Wheel and Bearing

Short Description about Fly Wheel and Bearing Welcome to carpricebd.com. Today we want to discuss about the motor car Fly Wheel and Bearing. We all know that the Fly Wheel and Bearing is very much important components of a motor car. So we (carpricebd.com) try to share little bit information for our readers.  Fly Wheel: We all know that a flywheel is a mechanical device specifically designed to efficiently store rotational energy (kinetic energy). Flywheels resist changes in rotational speed by their moment of inertia. The amount of energy stored in a flywheel is proportional to the

Short Description About Crankcase, Connecting Rod and Crank shaft

Short Description About Crankcase, Crank shaft and Connecting Rod Welcome to carpricebd.com. Today we want to discuss about the motor car piston. We all know that the Crankcase, Crank shaft and Connecting Rod is very much important components of a motor car engine. So we (carpricebd.com) try to share little bit information for our readers. Crankcase:First of all we all know that a crankcase is the housing for the crankshaft in a reciprocating internal combustion engine. In most modern engines, the crankcase is integrated into the engine block. The crank case is the opposite of the cylinder on



Car Tips and Tricks List

Driving Tips for Overtaking and operating on the lane

Driving Tips for Overtaking and operating on the lane   Welcome carpricebd.com. Today we want to discuss with you about Motor car turn around of a road for Overtaking and operating on the lane.We all konw that Overtaking other vehicles can be dangerous. The difficulty with overtaking is judging the space required to complete the action safely. Overtaking on the lane is dangerous - unless the lane is one way. There are certain rules that must be followed when driving on a lane. The rule of the road is 1 These rules should be followed everywhere in the

Tips for Crossing the blind lane

Tips for Crossing the Blind Lane Welcome carpricebd.com. Today we want to discuss with you about Motor car turn around of a road for Blind Man. We all know that every road has many type of turning point like 2 ways, 3 ways, 4 ways, 5 ways, Hill road, broken road etc. most of the time we need to turn around left and right. So the driver should always keep in mind that even if the car rotates regularly, the cars coming from the opposite side can cause accidents. If any driver fail to turn his properly then accident

Knowledge of routes and traffic

Knowledge of routes and traffic Welcome carpricebd.com. Today we want to discuss with you about Motor car turn around of a road. We all know that every road has many type of turning point like 2 ways, 3 ways, 4 ways, 5 ways, Hill road, broken road etc. most of the time we need to turn around left and right. So the driver should always keep in mind that even if the car rotates regularly, the cars coming from the opposite side can cause accidents. If any driver fail to turn his properly then accident happen. Most of the

Necessary Tips for Turn Around Your Motor Car

Necessary Tips for Turn Around Your Motor Car Welcome carpricebd.com. Today we want to discuss with you about Motor car turn around of a road. We all know that every road has many type of turning point like 2 ways, 3 ways, 4 ways, 5 ways, Hill road, broken road etc. most of the time we need to turn around left and right. So the driver should always keep in mind that even if the car rotates regularly, the cars coming from the opposite side can cause accidents. If any driver fail to turn his properly then accident happen

Accident for not moving the car properly

Accident for not moving the car properly Welcome carpricebd.com. Today we want to discuss with you about Motor car Accident of a road. We all know that every road has many type of turning point like 2 ways, 3 ways, 4 ways, 5 ways, Hill road, broken road etc. most of the time accident happen for this type of reason. So the driver should always keep in mind that even if the car rotates regularly, the cars coming from the opposite side can cause accidents. Many drivers think the accident at two junctions (at the junction of two roads)