PROFESSIONAL SERVICE FOR SPECIFIC WORKS

MANEUVERING SYSTEM REVISION WITH KOBELT CONTROL

TAILOR MADE PRODUCTION FOR SPECIFIC WORKS

7/24  MARINE MECHANICAL SERVICE ON TIME

FUEL INJECTION SYSTEM REPAIR SERVICE

SYSTEM INSTALLATION AND FIRST START-UP TESTS

ABOUT US

We provide all kinds of machinery maintenance and repair services to Foreign and Turkish flagged ships in Turkish territorial waters, especially in Tuzla and Yalova harbour areas, as well as the repair of propulsion systems, hydraulic - pneumatic systems, fuel injection systems and the necessary manufacturing, spare parts supply and production.


EGEM MARINE was established in Tuzla at the end of 2011 with years of experience in the sector.  

Since its establishment, EGEM MARINE has been serving you with its expert and reliable staff on ship diesel engine and propulsion systems maintenance. 

Thanks to our motto of predicting the failure, not eliminating the failure, the main headings of the maintenance we do are as follows: 

  Ship Diesel Engines and Generators  

  Diesel Engine Power Units Maintenance 

  Ship Propulsion Systems 

  Marine Gearboxes 

  Diesel Engine Cooling and Fuel Systems 

  New and Maintained Spare Parts 

  Pneumatic Maneuvring Systems Design and Maintenance

OUR SERVICES

7/24 Service in Ship Machinery, Hydraulic & Pneumatic Systems Repair

PRODUCTS & BRANDS

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Kobelt Marine

Authorised Technical Service
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QSP Marine

Fuel Injection System Repair
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TDYS Istanbul

Ship Spare Parts Production
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Neta Sea

CNC Machine Distributor

OUR BENEFITS

REFERENCES

image description Güneş Shipping
Maintenance and Repair works of Main Engine, Auxiliary Engine, Pneumatic and Hydraulic Systems.
image description Botaş Petroleum Pipeline Corporation
Maneuvering control systems maintenance of M/TUG vessels, Generator engines maintenance, overhauling works.
image description ES Group Maritime
Hydraulic and Pneumatic repair, conversion and overhauling works for dregger vessels
image description Fatih Offshore
Mechanic, hydraulic and pneumatic repair and maintenance works at motor tugs and platform supply vessels.
image description Sabiha Gokcen Airport
Maintenance and repair works of electric generators of SAW Airport
image description Trakya Glass Industry
Repair, maintenance and conversion works of Generator Engines
image description DGN Maritime
Repair and conversion works of dreggers, barges, boat and floating crane
image description Doğruyol Shipyard
All kinds of Mechanic, Hydraulic and Pneumatic works.
image description MWM Engine
Spare part production, diesel engine repair works
image description V Group
Technical support, mechanical repair services for fleet vessels
image description Naturablue Commercial Boat
Mechanic and technical works of main engines, auxiliary engines, hydraulic and pneumatic systems.
image description İBB Şehir Hatları
Kobelt Maneuvering Control System Replacement Works

MEDIA

Modernization works at M/S Paşabahçe has been done with Kobelt Marine Control Systems from Pneumatic to Electronic
BOTAŞ M/Tug vessels maneuvering control systems has been renewed with Kobalt marine electronic control equipments.
Maintenance and Reconditioning of marine diesel engine fuel injector pumps such as RT Flex 60C
Fuel injector maintenance and repair service for every brand of electronic and old style injection systems
Professional and Mighty mariner control systems has been approved by the following clasification associations; ABS Class, BV Class, RINA Class, LR Class, DNV GL Class

LOCATIONS

Tuzla Marine Mechanical Workshop

Evliya Çelebi M. Fersah S. No 1/9 Tuzla, Istanbul

Tuzla Marine Spare Parts Production Workshop

Aydınlı M. Tuzla Deri OSB Tacir S. 23/16 Tuzla, Istanbul

Tuzla Fuel Injector Repair Workshop

Orhanlı M. Gülsüm S. No 6 Türker Sanayi Sitesi F Blok No 3 Tuzla, Istanbul

Kobelt Marine Control Systems Workshop

Evliya Çelebi M. Cömert S. F Blok No 9

CUSTOMER COMPANIES

BOTAŞ Adana District Directorate V Ships Group ES Group Maritime Güneş Shipping Fatih Offshore Beyaz Bayrak Shipping ISG Sabiha Gökçen Airport DGN Maritime Trakya Glass Industry Doğruyol Shipyard Meryem Ana Shipping Naturablue Diving Centre MWM Engine BOTAŞ Marmara Ereğlisi District Directorate İBB İstanbul City Ferry Lines

PUBLICATIONS

File Name Description Download
Egem Marine Info Sheet.pdf General Information about company and provided services
Kobelt Technic.pdf Info sheet about engineering works and provided services for Kobelt Control Systems
QSP Marine Fuel Injection Service.pdf Information sheet regarding marine fuel injection system repair

Product Information

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    Kobelt Electronic Helm 6301-0100

    The 6301-0100 electronic helm brings modern steer-by-wire technology to the helm station. Inherently reliable with a sealed housing and contactless sensor, this helm provides adjustable tactile feedback to the operator and a mid-ship detent.

    Specifications
    Tactile feedback: 14.8 ft-lbs [20Nm] (max)
    Operating speed: 120 rpm (max)
    Output: 14 bit
    Connection: CANbus
    Termination: two 5 pin – M12 connectors
    Supply voltage: 9-36 VDC
    Power requirement: 17 W (max)
    EMC emissions: per IEC 60945
    EMC immunity: per IEC 60945
    Compass safe distance: 0.59 in [1.5 cm]
    Environmental category: ENV5 / Class C / exposed
    Ingress protection: IP67
    Ambient temperature: 5°F…+131°F [-15 °C… +85 °C]
    Finish: anodized aluminum - black
    Weight: 10 lbs [4.5 kg]

    Key Features
    • Realistic tactile feedback
    • Sealed housing
    • Reliable, contactless sensors
    • Optional tilting bracket

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    Kobelt Compact Electronic Helm Mdl 7166

    This unit is basically designed for electronic steering gear applications. It could, however, be used for many other purposes.
    It provides 2 2/3 turns from hardover to hardover and is equipped with a single potentiometer (standard is 1K pot). The shaft is machined with a standard ¾” taper. The unit is manufactured in bronze and stainless steel which will provide years of trouble-free service.
    It can easily be integrated with other Kobelt’s electronic and hydraulic steering components to complete the steering system.
    The wheel to be used with this helm should be limited to a maximum of 18 inches (450 mm) for optimum performance.
    Note: an oversized steering wheel can damage this unit which is an electronic helm.
    Approx. Weight:: 5.5 lb. (2.5 kg)

Useful Informations

Marine Engines
Engine is a device which transforms the chemical energy of a fuel into thermal energy and uses this energy to produce mechanical work.
Heat engines are divided into two broad classes.
 External Combustion Engine
 Internal Combustion Engine

a) External Combustion Engine:

In an external combustion engine the product of combustion of air and fuel transfer heat to a second fluid which is the working fluid of the cycle as in case of steam engine or a steam turbine.
Plant where the heat of combustion is employed to generate steam which is used in a piston engine or turbine. In all steam engine, the steam is used as the working substance. (Steam is a vapour of water e.g. it is invisible when pure and dry when dry vapour is further heated in superheated or so it will become superheated vapour which behaves more or less like a perfect gas.) These steam engines operated on the principle of first law of thermodynamics. i.e., heat and work are mutually convertible. In a reciprocating steam engine, as the heat energy in the steam in converted into mechanical work by the reciprocating (to and fro) motion of the piston it is called reciprocating steam engine. turbine moreover as the combustion of fuel taken place outside. The engine cylinder, it is so called as external combustion engines.
External combustion engines “advantages or external combustion plants advantages are – use of cheaper fuels including solid fuels, and high starting torque (Internal combustion are not self-starting). The steam turbine plant which is the most important external combustion engine is
mainly used for large electric power generation.

b) Internal Combustion Engine:

In an Internal combustion engine, the products of combustion are directly the motive fluid, petrol, gas and diesel engines, wankel engine and open cycle gas turbines are examples of internal combustion engines. Jet engines and rockets are also internal combustion engines.
Historical Development: Hygiene Gunpowder Engine (1680) It consists of a vertical cylinder having a sliding fit type of piston. Explosion of a charge of
gunpowder in the cylinder drawn the piston on its upward stroke and the returns stroke was censed by atmospheric pressure acting as the piston and arising from the drys in pressure in the cylinder as the gas products of the explosion began to cool. The useful pone products on the downward stroke and by an arrangement g-ropes and pullys applied to arise loaded platform. He finds difficult to produce means for delivering the sequences of charges necessary for continuous operation and controlling the rate of explosion.

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Components of Engines

Cylinder: It is the heart of engine. Here only fuel is burnt and power is developed. The inner side of cylinder is formed by liner or sleeve, made of nickel  chromium alloy steel. The inner diameter of cylinder is called bore of cylinder.

Cylinder head: It is usually a single piece of casting made of alloy iron, bolted to the top of the engine. It covers the top end of cylinder and has provision for fitting inlet and exhaust value arrangement.

Piston: It is fast moving part inside the cylinder which converts thermal energy into useful mechanical energy.
 
Piston ring: These are rings fitted to the body of the piston. Piston rings are classified into compression ring and oil ring according to their purpose. Compression rings are fitted to the top of the body provides a seal to maintain power developed. Oil rings are used for circulating lubrication oil over the entire body of the piston and cylinder to reduce wear and tear.

Connecting rod: This is tapering rod with small end connected to the piston and big end connected to the crankshaft. The small end is connected to the piston by means of piston pin. The big end is split in two halves to facilitate fixing with the crankshaft. This connecting rod converts reciprocating
motion of piston into rotary motion of crankshaft.

Cam shaft: It consists of cams arranged on it with suitable phase difference in order to control the opening of the valves at different times as and when required. It gets its drive from the crankshaft by suitable gear and chain mechanism.

Cam: These are the parabolic projections machined on a cam shaft or ellipsoidal metal pieces attached to the cylindrical shaft in such way that there is parabolic projection. This projection lifts the cam follower thereby opening the corresponding valve.

Cam follower: This is flat piece attached to end of push rod which transmits the motion from cam to push rod.

Push rod: This is rod which transmits motion to the rocker arm assembly by a suitable ball and socket arrangement.

Rocker arm: This is actuated by the suitable lifting of push rod which in turn opens the valve.

Valve spring: When the cam is released, the opened valve is closed back into position by the tension in the spring.

Crank shaft: This is output shaft, which delivers the useful work to the driven shaft. It is supported by two bearings fixed in the crank case. To one end of the shaft a fly wheel is attached.

Fly wheel: It takes care of fluctuation of the cyclonic vibration in speed. It stores energy during power stroke and release during other stroke, thus giving fairly constant output torque.

Cooling water jackets: To cool the cylinders head and wall a jacket is provided to circulate the cooling water.

Fuel nozzle: Fuel is delivered by this nozzle in a fine spray under pressure in diesel engine. This is an optional part of diesel engine.

Spark plug: At the end of the compression stroke, the air fuel-mixture supplied to the engine cylinder is ignited by an electric spark, produced by spark plug. This is an optional part in petrol engine.

Inlet Valve: To supply air at the suction stroke.

Exhaust Valve: To remove the exhaust gas at the exhaust stroke.

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Systems of diesel Engines
The desired result, i.e., the development of useful power by the engine is achieved only when these parts function as a group only. Some parts have similar functions to perform or some parts assist other parts in carrying out their respective functions. In other words a diesel engine’s performance or operation can be easily understood if the different functions are grouped together into “Systems of operation”. These operating systems of a diesel engine can be broadly classified as:

- Frame System
- Energy Generating System
- Power Transmission System
- Intake Exhaust System
- Valve Mechanism System
- Fuel System
- Lubrication System
- Cooling System
- Starting System

Frame System: The heaviest system of the diesel engine which supports all the vulnerable part is the frame system. Cylinder, crankcase, bed plate, main bearing etc., are some fo the important parts of this system. One of the main function of the frame system is to hold the dead load of all the
components, the inertia load of the moving parts, the forces arising due to the combustion pressure etc., So utmost care has to be taken not only in designing but also in the material used for manufacturing these components which should have sufficient strength and stiffness to bear all the above said loads.

Energy generating system: This system develops the energy. In a diesel energy is developed by the burning of fuel inside the combustion chamber. The lower part of the cylinder head, top part of the piston and the cylinder liner form parts of this system.

Power Transmission System: The generated energy has to be transmitted outside the engine where it can be utilized. The power transmission system consists of piston pin, connecting rod, crankshaft, flywheel which performs this task. The parts of this system are all movable and also subjected to torsional and transverse forces. Hence they have to be abrasive resistant and able to withstand high torsional forces.

Intake and Exhaust System: Suction and exhaust ports, manifolds, silencers etc., form the main parts of this system which is responsible for giving oxygen for combustion inside the cylinder as well as scavenge the unwanted gases outside the cylinder.

Valve Mechanism System: Valve mechanism system works in conjunction with the intake and exhaust system. Controlling the timing, quantity of air admitted and expelling burnt gases out are performed by the intel and exhaust valves, cam, push rod, rocker arms and these parts constitutes this system.

Fuel system: Like the heart of a human being fuel system can be termed as the heart of S for combustion. It has various parts which are explained in the detailed study. 

Lubricating and Cooling and Starting System: These are auxiliary systems but for which the smooth starting and operation of the engine cannot be affected. Like the fuel system all these systems have a series of accessories as well as various methods of operation which are elaborately explained in the specific chapters.

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