Digit
headset_mic account_circle
mail
Sign In
  • Products

    Motor

    • Car Insurance
    • Two Wheeler/Bike Insurance
    • Commercial Vehicle Insurance
    • Taxi/Cab Insurance
    • Auto Rickshaw Insurance
    • Truck Insurance

    Health

    • Health Insurance
    • Super Top-up Health Insurance
    • Arogya Sanjeevani Policy
    • Corporate Health Insurance
    • Health Insurance Portability

    Other

    • International Travel Insurance
    • Flight Delay
    • Shop Insurance
    • Home Insurance
  • Claims

    • File a Claim
    • File Health Claim
    • File Motor Claim for Garages
    • Claim Status
    • Digit Cashless Garages
    • Digit Cashless Hospitals
  • Renewals
  • Become an Agent
  • Digit Products

    Motor Insurance

    • Car Insurance 25% OFF
    • Two Wheeler/Bike Insurance
    • Commercial Vehicle Insurance
    • Taxi/Cab Insurance 15% OFF
    • Auto Rickshaw Insurance
    • Truck Insurance

    Health Insurance

    • Health Insurance
    • Super Top-Up Health Insurance
    • OPD Health Insurance
    • Arogya Sanjeevani Policy
    • Personal Accident Insurance
    • Corporate Health Insurance

    Other Insurance

    • International Travel Insurance
    • Flight Delay
    • Shop Insurance
    • Home Insurance
  • Claims

    File a Claim

    File Health Claim

    File Motor Claim for Garages

    COVID-19 Assistance

    Claim Status

  • Renewals

    Become an Agent

  • Support
    Sign In
    • edit Edit Policy
    • download Download Policy
    • person_pin My Service Requests
    • check Check Policy Status
    call 1800-258-5956 mail_outline hello@godigit.com whatsapp 70260 61234

    Our WhatsApp number cannot be used for calls. This is a chat only number.

  • My Account
    account_circle
    • autorenew Renew My Policy
    • download Download My Policy
    logout SIGN OUT
    call 1800-258-5956 mail_outline hello@godigit.com whatsapp 70260 61234

    Our WhatsApp number cannot be used for calls. This is a chat only number.

  • login
  • about
  • contact
  • careers
More Products

Motor

  • Car Insurance
  • Two Wheeler/Bike Insurance
  • Commercial Vehicle Insurance
  • Taxi/Cab Insurance
  • Auto Rickshaw Insurance
  • Truck Insurance

Health

  • Health Insurance
  • Super Top-up Health Insurance
  • Arogya Sanjeevani Policy
  • Corporate Health Insurance
  • Health Insurance Portability

Other

  • International Travel Insurance
  • Flight Delay
  • Shop Insurance
  • Home Insurance

Support

close
account_circle
  • edit Edit Policy
  • download Download Policy
  • person_pin My Service Requests
  • check Check Policy Status
  • autorenew Renew My Policy
  • download Download My Policy
logout SIGN OUT
call 1800-258-5956 mail_outline hello@godigit.com whatsapp 70260 61234

Our WhatsApp number cannot be used for calls. This is a chat only number.

Do the Digit Insurance

Trusted by 3 Crore+ Indians

  • Health
    Health
  • Pay as you Drive
    Car Side View
    Car
  • trending icon

    Third-party premium has changed from 1st June. Renew now

    Motorcycle Side View
    Bike
  • auto rikshaw
    Commercial
  • Covers COVID-19
    Travel Airplane
    Travel
  • More products
    More
false false
ENTER YOUR CAR NUMBER
keyboard_arrow_right
DON'T KNOW YOUR CAR NUMBER?
keyboard_arrow_right
renew digit policy keyboard_arrow_right

I agree to the  Terms & Conditions

{{(!carWheelerCtrl.registrationNumberCardShow || carWheelerCtrl.localStorageValues.vehicle.isVehicleNew) ? 'I know my Reg num' : 'Don’t have Reg num?'}}
keyboard_arrow_right
It’s a brand new Car
keyboard_arrow_right
renew digit policy keyboard_arrow_right

I agree to the  Terms & Conditions

Terms and conditions

    false false
    Enter valid registration number
    DON'T KNOW REGISTRATION NUMBER?
    keyboard_arrow_right
    I KNOW MY REGISTRATION NUMBER
    keyboard_arrow_right
    IT'S A NEW BIKE
    keyboard_arrow_right
    RENEW DIGIT POLICY
    keyboard_arrow_right

    I agree to the  Terms & Conditions

    Continue with {{bikeCtrl.lastVisitedData.lastVisitedUrl.indexOf('DigitPaymentGateway/payments') !== -1 ? 'payment completion': 'previous choice'}}

    {{bikeCtrl.lastVisitedData.vehicle.makeModel | toTitleCase}} {{bikeCtrl.lastVisitedData.vehicle.variant? (bikeCtrl.lastVisitedData.vehicle.variant|toTitleCase): (bikeCtrl.lastVisitedData.vehicleCharacteristics.vehicleType | toTitleCase)}}

    {{bikeCtrl.lastVisitedData.vehicle.licensePlateNumber}}

    {{bikeCtrl.selectedPlanDisplay[bikeCtrl.lastVisitedData.dropOffSelectedPlan? bikeCtrl.lastVisitedData.dropOffSelectedPlan: bikeCtrl.lastVisitedData.selectedPlan]}}

    -

    ₹{{((bikeCtrl.lastVisitedData.dropOffSelectedPlan ? bikeCtrl.lastVisitedData.dropOffGrossPremium:bikeCtrl.lastVisitedData.chosePlan.grossPremium) .replace('INR ','')).split('.')[0] | rupeeFormatWithComma}} (Incl 18% GST)

    keyboard_arrow_right
    IT'S A NEW BIKE
    keyboard_arrow_right
    RENEW DIGIT POLICY
    keyboard_arrow_right

    I agree to the  Terms & Conditions

    Continue with {{twoWheelerCtrl.lastVisitedData.lastVisitedUrl.indexOf('DigitPaymentGateway/payments') !== -1 ? 'payment completion': 'previous choice'}}

    {{twoWheelerCtrl.lastVisitedData.vehicle.make |toTitleCase}} {{twoWheelerCtrl.lastVisitedData.vehicle.model | toTitleCase}} {{twoWheelerCtrl.lastVisitedData.vehicle.variant? (twoWheelerCtrl.lastVisitedData.vehicle.variant |toTitleCase):''}}

    {{twoWheelerCtrl.lastVisitedData.vehicle.licensePlateNumber}}

    {{twoWheelerCtrl.lastVisitedData.selectedPlan}}

    -

    ₹{{((twoWheelerCtrl.lastVisitedData.quickQuoteResponse.plans[twoWheelerCtrl.lastVisitedData.selectedPlan].resposeBody.grossPremium) .replace('INR ', '')).split('.')[0] | rupeeFormatWithComma}} (Incl 18% GST)

    • Geography
    • Country
    {{geography.name}}

    Popular Countries (You can select more thane one)

    • {{country}}

    DONE
    Please select geography

    I agree to the  Terms & Conditions

    As mandated by Spanish Authorities your travel insurance needs to extend 15 days after your trip ends.
    We will extend your coverage period accordingly.

    false false false false false false false false false false false false

    Port my existing Policy

    keyboard_arrow_right
    or renew digit policy keyboard_arrow_right
    Chat with an expert

    I agree to the  Terms & Conditions

    You can select more than one member

    • -+ Max kids
      (s)
    ENTER YOUR REGISTRATION NUMBER
    keyboard_arrow_right
    DON'T KNOW YOUR REGISTRATION NUMBER
    keyboard_arrow_right
    or renew digit policy keyboard_arrow_right

    I agree to the  Terms & Conditions

    Terms and conditions

    Terms and conditions

    Do the Digit Insurance
    • Health
    • Car
    • Bike
    • Commercial
    • Travel
    • More Products

    Fuel Supply System in Diesel Engines - Details of Nozzles and Injectors

    fuel supply system in diesel engines
    (source: shopify)

    A fuel supply system in a diesel engine aims to inject the right amount of pressurized and automated fuel into the engine at the right time. As a result, combustion in a diesel engine occurs when fuel mixes with hot compressed air.

    This process involves working with various components, including fuel injection systems, fuel injectors and others. The details are provided below!

    What Is a Fuel Supply System?

    A fuel supply system in a diesel engine provides measures, injects and atomises the fuel. Thus, it is also referred to as the "heart" of an engine. Apart from it, the types of injectors directly affect how well an engine performs.

    Additionally, fuel injection systems are more expensive since they are produced with remarkable accuracy.

    Fuel will flow either due to gravity or through a fuel feed pump, which is available to give energy to an injection pump through a filter. Then, it supplies the cylinder heads' built-in injectors with fuel.

    What Are the Types of Fuel Injection Systems?

    A fuel supply system is primarily of two types. Those primary types of fuel injectors are:

    1. Air Injection System

    In this system, the air is first compressed using a compressor to very high pressure. After that, fuel is metered and pumped to a nozzle, which is also connected to a source of high-pressure air.

    Next, when this nozzle is opened, the air blows the gasoline into the engine and delivers a well-atomised spray. However, since this system is expensive and complicated, this method is no longer used.

    2. Solid Injection System

    People mostly replace the injection method with this one. This is a direct injection of the atomised, under-pressure fuel into the combustion chamber.

    Above all, it requires a pump to supply the gasoline at high pressure (as high as 300 bar abs). Also, it can be further divided into the three following widely employed systems

    3. Common Rail System

    In this instance, filters allow fuel to pass from the storage tank to a low-pressure pump. The low-pressure pump moves fuel from the high-pressure pump to the common rail.

    As a result, high-pressure fuel is gathered in the common rail, and the necessary amount of fuel is then sent to the injectors and cylinders via metering devices. This method is typically used with multi-cylinder and Cummins engines.

    4. Individual Pump System

    In this case, fuel passes through filters, low-pressure pumps, and the storage tank. This low-pressure pump distributes the fuel to 4 different metering and pressure pumps.

    The fuel will be pumped to individual injectors that are available in the cylinder heads using these independent metering and pressure pumps. Also, these are employed in big, slow-moving engines.

    5. Distributor System

    In distributor systems, fuel will move from a storage tank through filters to the low-pressure pump, then to the metering and pressure pumps. This fuel distributor device distributes and sends the necessary amount of fuel to each injector and cylinder using the fuel metering and pressure pump. Later, it is made use of in small and medium-sized engines.

    6. Multipoint Fuel Injection System

    At all engine speeds and loads, a multipoint fuel injection system is utilised to provide an air-fuel mixture of the right strength. It helps in providing the necessary quantity to each cylinder of a multi-cylinder engine.

    What Are the Different Types of Nozzles?

    In diesel engines, there are 3 types of nozzles those are:

    • Single Hole: These are nozzles with 0.2 mm diameter and are primarily used in combustion chambers. Good mixing of air is challenging in this case. Also, it has the tendency to dribble.
    • Multiple Holes: The usual size of multiple hole-type nozzles is 0.35 to 1.5 mm and generally has 4 to 18 holes.
    • Pintle: In this case, the spindle is equipped with a projection called a pintle. It prevents weak injection and dribbling, which peeks out from the nozzle's mouth. Moreover, you can also find a conical or cylindrical form of the nozzle to avoid dribbling.

    What Are the Different Types of Injectors?

    Primarily, there are three types of injectors:

    • Air Blast Injectors: These are utilised in systems that inject air. However, methods for injecting air are no longer used since they call for multistage compressors. Therefore, these injectors are no longer in use.
    • Mechanically Operated Injectors: The same mechanism that was once used to run IC engine valves now operates them.
    • Automatic Fuel Injector: All automotive CI engines use these Automatic Fuel Injectors. They consist of a needle valve that raises the fuel pressure. Apart from it, the gasoline pump is what generates this fuel pressure.

    What Is an Electronic Fuel Injection System?

    Electronics were first introduced in 1965, and now electronic components account for about 30–40% of the cost of automobiles. In this regard, electronics and computers are used in cars to get maximum power and optimum economy.

    Electronic fuel injection systems use a variety of sensors to measure characteristics like temperature, gas pressure, throttle position, air flow rate, etc. Then the Electronic Control Unit (ECU), essentially a computer, receives this data via sensors. Later, this ECU processes the data and controls injectors or other devices to have optimum power, the best economy, and minimal emissions.

    Regardless of the type of fuel supply system in a diesel engine, the purpose of a diesel fuel system remains unchanged. It is to precisely and timely inject pressurised and atomised fuel into each engine cylinder. In a diesel engine, combustion happens when this fuel surge and hot compressed air combine.

    FAQs About Fuel Supply System in Diesel Engines

    What are the two basic arrangements of a multipoint fuel injection system?

    MPFI either uses Port injection or throttle body injection. In the first case, the injector is placed in the intake manifold, i.e., nearby the inlet valve. On the other hand, in a throttle body, you will find an injector at every point.

    MPFI either uses Port injection or throttle body injection. In the first case, the injector is placed in the intake manifold, i.e., nearby the inlet valve. On the other hand, in a throttle body, you will find an injector at every point.

    What are the benefits of electronic fuel injection?

    The main benefit of electronic fuel injection is that it increases an engine's reliability. Next, it reduces the time and expense of maintenance. Not to mention, EFI systems contain improved hot and cold starting performance.

    The main benefit of electronic fuel injection is that it increases an engine's reliability. Next, it reduces the time and expense of maintenance. Not to mention, EFI systems contain improved hot and cold starting performance.

    Can MPFI System increase fuel efficiency?

    Yes. MPRFI can improve the efficiency of your vehicle.

    Yes. MPRFI can improve the efficiency of your vehicle.

    Please try one more time!

    Request URL:
    Status Code:
    Request Payload:
    Response Data:
    1. Digit Insurance
    2. Motor Insurance
    3. Automobile
    4. Fuel Supply System In A Diesel Engine

    Last updated: 2023-05-30

    Digit
    • about
    • contact
    • career
    Products
    • Car Insurance
    • Bike Insurance
    • Travel Insurance
    • Health Insurance
    • Property Insurance
    • Shop Insurance
    • Group Health Insurance
    • Arogya Sanjeevani Policy
    • Commercial Vehicle Insurance
    • Super Top-up Health Insurance
    • Flight Delay
    • Health Insurance for Disabled & HIV/AIDS Patients
    Resources
    • Blog
    • Press
    • Download Policy
    • Grievance Redressal Procedure
    • Cancel e-Mandate
    • Check Digit Policy Status
    Agent & Partnerships
    • Become an Agent
    • Become Digit POSP
    • Garages claim intimation
    Services
    • Claims
    • Renewals
    • Digit Cashless Garages
    • Digit Cashless Hospitals
    Get our app
    Download man
    App Store Google Play

    Other Products
    • Fire Insurance
    • Burglary Insurance
    • Building Insurance
    • Bus Insurance
    • Tractor Insurance
    • Commercial Van Insurance
    • Passenger Carrying Vehicle Insurance
    • Heavy Vehicle Insurance
    • Goods Carrying Vehicle Insurance
    • Activa Insurance
    • Jupiter Insurance
    • Bullet Insurance
    • Student Travel Insurance
    • Schengen Visa Travel Insurance
    Health Insurance Guides
    • Individual Health Insurance
    • Family Health Insurance
    • Health Insurance for Parents
    • Health Insurance Premium Calculator
    • Compare Health Insurance
    • Health Insurance for Senior Citizens
    • Health Insurance with Maternity Cover
    • Corona Kavach Policy
    • Corona Rakshak Policy
    • हेल्थ इन्शुरन्स
    • फैमिली हेल्थ इन्शुरन्स
    Car Insurance Guides
    • Third Party Car Insurance
    • Comprehensive Car Insurance
    • Zero Depreciation Car Insurance
    • NCB in Car Insurance
    • IDV Calculator for Car
    • Bumper to Bumper Car Insurance
    • Car Insurance Calculator
    • Own Damage Car Insurance
    • Comprehensive vs Third Party Insurance
    • Compare Car Insurance
    • Find Vehicle Registration Details Online
    Bike Insurance Guides
    • Third Party Bike Insurance
    • Comprehensive Bike Insurance
    • Zero Depreciation Bike Insurance
    • NCB in Two Wheeler Insurance
    • IDV Value Calculator for Bike
    • Add-on Cover in Bike Insurance
    • Bike Insurance Calculator
    • Own Damage Bike Insurance
    • Comprehensive vs Third Party Bike Insurance
    • Compare Bike Insurance
    • Royal Enfield Insurance
    • TVS Insurance
    • Hero Bike Insurance
    Other Guides
    • Types of Insurance
    • Types of General Insurance
    • Types of Motor Insurance
    • International Driving License
    • Visa on Arrival for Indians
    • Visa Free Countries for Indians
    • Comprehensive vs Zero Depreciation
    • Coronavirus Health Insurance
    • Coronavirus Symptoms Checker
    • Indian Passport Rank
    • Digit Illness Group Insurance
    • Hero Splendor Insurance
    • Access Insurance
    • Scooty Insurance
    Calculators
    • SME Buddy Calculator
    • Home Loan EMI Calculator
    • Bike Loan EMI Calculator
    • Car Loan EMI Calculator
    • HRA Exemption Calculator
    • Sukanya Samriddhi Yojana Calculator
    • SIP Calculator
    • RD Calculator
    • SWP Calculator
    • GST Calculator
    • PPF Calculator
    • Personal Loan EMI Calculator
    • EMI Calculator
    • Individual Income Tax Slab
    • Tax Saving Options other than 80C
    Finance Guides
    • What is Credit Score
    • Public Provident Fund
    • How to Open PPF Account?
    • How to open Sukanya Samriddhi Account
    • What is GST?
    • GST Registration in India
    • PAN Card
    • Aadhaar Card
    • Property Tax
    • Road Tax
    • Passport Process
    • Income Tax Slabs
    • How to Save Income Tax in India
    • Tax Deductions under Section 80C
    Traffic Rules
    • PUC Certificate
    • Vehicle Registration Certificate
    • New Traffic Fines
    • Fine for Driving without Helmet
    • Types of Driving Licence in India
    • Driving Licence in Delhi
    • Driving Licence in Bangalore
    • Driving Licence in Jaipur
    • Bangalore Traffic Fines
    • Pune RTO Fine
    • Own Damage Insurance
    Business Products
    • Business Insurance
    • Management Liability Insurance
    • General Liability Insurance
    • Workmen Compensation Insurance
    • Fidelity Insurance
    • Professional Liability Insurance
    • Money Insurance Policy
    • Sign Board Insurance
    • Plate Glass Insurance
    • Erection All Risk Insurance
    • Contractors' All Risks Insurance
    • Directors and Officers Liability Insurance
    • Marine Cargo Insurance
    • Contractors Plant and Machinery Insurance
    RTO Offices in India
    • RTO Office
    • RTO Pune
    • RTO Ahmedabad
    • RTO Bangalore
    • RTO Mumbai
    • RTO Delhi
    • RTO Lucknow
    • RTO Thane
    • RTO Chennai
    Important Links
    • Digit Insurance Reviews
    • Car Insurance Reviews
    • Bike Insurance Reviews
    • Commercial Vehicle Insurance Reviews
    • Travel Insurance Reviews
    • Health Insurance Reviews
    • Mobile Insurance Reviews
    • Become a Digit Partner
    • General Insurance Agent
    • Health Insurance Agent
    • Motor Insurance Agent
    Car Brands & Models
    • Maruti Insurance
    • Toyota Car Insurance
    • Tata Car Insurance
    • Hyundai Car Insurance
    • Kia Car Insurance
    • Mahindra Car Insurance
    • Tata Tiago Insurance
    • Tata Nexon Insurance
    • Hyundai i20 Insurance
    • Creta Insurance
    • Baleno Insurance
    Downloads Do Not Disturb (DND) Public Disclosures Investor Relations Stewardship Policy IRDAI Privacy Policy

    CIN: U66010PN2016PLC167410, IRDAI Reg. No. 158.

    Go Digit General Insurance Limited (formerly known as Oben General Insurance Ltd.) - Registered Office Address - 1 to 6 floors, Ananta One (AR One), Pride Hotel Lane, Narveer Tanaji Wadi, City Survey No.1579, Shivaji Nagar, Pune-411005, Maharashtra | Corporate Office Address - Atlantis, 95, 4th B Cross Road, Koramangala Industrial Layout, 5th Block, Bengaluru-560095, Karnataka | Trade logo of Go Digit General Insurance Ltd. displayed above belongs to Go Digit lnfoworks Services Private Limited and is provided and used by Go Digit General Insurance Ltd. under license.