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Fuel nozzle that supplies fuel into combustion chamber of internal combustion engine in the shape of continuous circle c...
10/04/2017

Fuel nozzle that supplies fuel into combustion chamber of internal combustion engine in the shape of continuous circle cone

Summary:
To diminish the diameter of atomized fuel drops and disperse fuel drops as evenly as possible along a combustion chamber, we came up with the usage of a valve fuel injector, which supplies Diesel or gasoline into a combustion chamber in the shape of continuous circle cone with an exposure angle of 50o – 180o. The cone fuel nozzle capitalizes Homogenous Chamber Combustion Ignition (HCCI) process in internal combustion engine.

Full Description:
To diminish the diameter of atomized fuel drops and disperse fuel drops as evenly as possible along a combustion chamber, we came up with the usage of a valve fuel injector, which supplies Diesel or gasoline into a combustion chamber in the shape of continuous circle cone with an exposure angle of 50o – 180o. There is a gap between a valve and an injector housing; fuel enters a combustion chamber through this gap; its size is about 20 – 50 micron. During the process of fuel injection, an injector valve also vibrates and that leads to substantial fractioning of fuel. The cone fuel nozzle capitalizes Homogenous Chamber Combustion Ignition (HCCI) process in internal combustion engine (both engines – Diesel and Spark Ignition) by means of wide and equally dispersing the fuel throughout the entire combustion chamber.
n modern diesel engines the fuel supply into a combustion chamber is performed throughout multi-hole fuel injector. The shape of fuel stream, number of holes and their diameter impact the quality of combustion process as well as contents of harmful substances within exhaust gases. While developing cone fuel injector designs usually the following tasks are set to be resolved:
• diminish diameter of atomized fuel drops,
• disperse fuel drops as equally as possible along a combustion chamber,
• within one cycle fuel supply to break it down into many injections (sub-injections); usually up to 20 sub-injections for a cycle
Decreasing jet holes of a fuel injector and their quality production can resolve by diminish diameter of fuel holes. However, dramatic diminishing of their diameter is impossible due to technological obstacles related to the holes fabrication process.
Disperse fuel drops is resolved by selection of the most suitable combustion chamber and determination of the fuel stream direction in such a way that equal dispersion of fuel is provided among the entire combustion chamber. The number of holes can’t be increased indefinitely because of technological complexities.

The newly developed nozzle of valve type supplies engine (both Diesel and spark ignition) with fuel directly into a combustion chamber. Fuel takes the shape of continuous circle cone with an exposure angle of 50o – 180o. There is a gap between a valve and an injector housing. Fuel enters a combustion chamber through this gap; its size is about 20 – 50 micron. During the process of fuel injection, an injector valve also vibrates and that leads to the substantial fractioning of fuel.

Problem this idea/invention addresses:
Diesel engine industry
Spark ignition engine industry
Homogenous Chamber Combustion Ignition (HCCI) process of internal combustion engine
Fuel nozzle, fuel injector, DI diesel engine, DI gasoline (spark ignition) engine

Regenerative heat exchangerSummary:Several heat-exchanging chambers, each incorporating two rotary gas valves, are conne...
04/04/2017

Regenerative heat exchanger
Summary:
Several heat-exchanging chambers, each incorporating two rotary gas valves, are connected to the hot gas flow and the cold compressed flow. The valves sequence the flows around the chambers so that the regenerator materials, eg. ceramic honeycomb, are alternately heated and then cooled.

Full Description:
The materials that accomplish the heat exchange from one gas flow to another can be gravel, or ceramic balls (if the hot flow is at a high temperature) or honeycombs or wire bundles, e.g., are contained in insulated casings. There may be 2,3,6 12 or more chambers with these casings containing porous materials. The casings have two faces, one for inlet of hot gas and the outlet for heated gas, and the other for input of cooler gas and the outlet for cooled gas. One manifold is attached to each face. Each manifold incorporates a flow-switching valve. For a period from a few seconds to several minutes, depending on the design, the hot flow goes through the porous material, heating it up. Then that flow is stopped and the cooler flow is admitted to flow in the opposite direction (in general) becoming heated until most of the heat is extracted from the material. This sequence occurs in each chamber in turn.

Problem this idea/invention addresses:
When used for gas-turbine engines it gives very high heat-transfer efficiency with low pressure drops and low leakage. Very easy to service.

A knuckle joint is a mechanical joint used to connect two rods which are under a tensile load, when there is a requireme...
14/02/2017

A knuckle joint is a mechanical joint used to connect two rods which are under a tensile load, when there is a requirement of small amount of flexibility, or angular moment is necessary. There is always axial or linear line of action of load.

* Parts of a Knuckle Joint :

A typical knuckle joint has the following parts -

1. Fork end
2. Eye end
3. Knuckle pin
4. Collar
5. Taper pin

* Advantages of Knuckle Joint :

1. Knuckle joint can withstand large tensile loads.
2. It has good mechanical rigidity.
3. It is easy to manufacture and set up.
4. It can be easily dismantled and assembled.
5. Design is simple and easy

* Disadvantages of Knuckle Joint :

1. The joint cannot withstand large compressive loads.
2. It permits angular movement in only one plane.
3. It is not as flexible as universal joint.

* Applications of Knuckle Joint :

Knuckle joints find a wide variety of applications. They are used in:

1. Bicycle chains
2. Tractors
3. Trusses
4. Automobile wipers
5. Cranes
6. Chain straps of watches
7. Earth movers
8. Robotic joints
9. Structural members

Read more: http://mechteacher.com/knuckle-joint/

A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. Coupling...
14/02/2017

A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. Couplings do not normally allow disconnection of shafts during operation, however there are torque limiting couplings which can slip or disconnect when some torque limit is exceeded.

The primary purpose of couplings is to join two pieces of rotating equipment while permitting some degree of misalignment or end movement or both. By careful selection, installation and maintenance of couplings, substantial savings can be made in reduced maintenance costs and downtime.

Differential Of Automobile ----- The automotive differential is designed to drive a pair of wheels while allowing...
19/12/2016

Differential Of Automobile -----

The automotive differential is designed to drive a pair of wheels while allowing them to rotate at different speeds. In vehicles without a differential, such as karts, both driving wheels are forced to rotate at the same speed, usually on a common axle driven by a simple chain-drive mechanism.

This is the era of non-conventional energy ...One of the most common non-conventional energy source is - HYDEL POWER PL...
19/12/2016

This is the era of non-conventional energy ...One of the most common non-conventional energy source is - HYDEL POWER PLANT ...

25/08/2016

In this Video you can see how an engine system works...With all the details of engines and also its assembling of engine..

22/08/2016

Portable engine

An Otto cycle is an idealized thermodynamic cycle that describes the functioning of a typical spark ignition piston engi...
21/08/2016

An Otto cycle is an idealized thermodynamic cycle that describes the functioning of a typical spark ignition piston engine.It is the thermodynamic cycle most commonly found in automobile engines.
The Otto cycle is a description of what happens to a mass of gas as it is subjected to changes of pressure, temperature, volume, addition of heat, and removal of heat. The mass of gas that is subjected to those changes is called the system. The system, in this case, is defined to be the fluid (gas) within the cylinder. By describing the changes that take place within the system, it will also describe in inverse, the system's effect on the environment. In the case of the Otto cycle, the effect will be to produce enough net work from the system so as to propel an automobile and its occupants in the environment.

The Otto cycle is constructed from:

1.Top and bottom of the loop: a pair of quasi-parallel and isentropic processes (frictionless, adiabatic reversible).
2.Left and right sides of the loop: a pair of parallel isochoric processes (constant volume).

Nomenclature Of a THREAD
02/06/2016

Nomenclature Of a THREAD

THREAD is one of the important terms of Mechanical Engineering..so here is little bit details on it... In s...
26/05/2016

THREAD is one of the important terms of Mechanical Engineering..so here is little bit details on it...
In short we can say that THREAD is a modified shape of inclined surface...

Working Principal Of a Four Stroke Engine
09/05/2016

Working Principal Of a Four Stroke Engine

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