Q40 The venturi of a simple carburettor has a throat diameter of 35 mm andaid the coefficient of air flow is 0.85. The fuel orifice has a diameter of 2.3 mmand the coefficient of fuel flow is 0.66. The petrol surface is 5mm below the throatFind The air Fuel ratio for a pressure drop of 0.07 bar when nozzle lip is neglected.⑥The air Fuel ratio when the nozzle lip is taken into account win wilt to toutThe minimum velocity of air (critical air velocity) required to start The fuelutsize flow when nozzle lip is provided. [used Approximate method JustTake density of air and fuel as 1.2 and 750 kg/m³ respectively)Enter APS Answers [a_11.93 b-11-96 c_7.83 m/sec ] 2-1 1920

Step 1: Step 2: Part (b): Air-Fuel Ratio with Nozzle Lip Considered Step 3: Step 4:…

Answered: Q40 The venturi of a simple carburettor…

Automotive Technology: A Systems Approach (MindTap Course List)

6th Edition

ISBN:9781133612315

Author:Jack Erjavec, Rob Thompson

Publisher:Jack Erjavec, Rob Thompson

Chapter33: Emission Control Systems

Section: Chapter Questions

Problem 1RQ: Explain why a small PCV valve opening is adequate at idle speed.

See similar textbooks

Similar questions

The venturi of a simple carburettor has a throat diameter of 20 mm and the coefficient of flow is 0.8. The fuel orifice has a diameter of 1.14 mm and the coefficient of fuel flow is 0.65. The density of air and fuel to be 1.20 kg/m and 750 kg/m. When the nozzle tip is neglected the air fuel ratio for a pressure drop of 0.8 bar is 1) 15.15 3 2) 13.1 3) 12.5 4) 16.0
An engine fitted with a single jet carburetor having a jet diameter of 1.25 mm has a fuel consumption of 6 kg/h. The specific gravity of fuel is 0.7. The level of fuel in the float chamber is 5 mm below the top of the jet when the engine is not running. Ambient conditions are 1 bar and 17ºC. The fuel jet diameter is 0.6 mm. The discharge coefficient of air is 0.85. Air-fuel ratio is 15. Determine the critical velocity of flow at throat and throat diameter. Express the pressure at throat in mm of water column. Neglect compressibility effects.
Question: Please compute the compression ratio of an engine that has a bore of 5 inches and a stroke of 5 inches when the volume at the combustion chamber is 16.36 cubic. in. with the piston at TDC. Please provide a complete solution. Thak you!
Q6. Answer following questions by True or False 1. Injector that sprays into the intake system operate at the same pressure of the carburetor. 2. Swirl in the cylinder enhances the mixing of air and fuel to give a homogeneous mixture in the very short time. 3. Flame development region is consumed 80% of the air-fuel mixture. 4. Maximum temperature and pressure of flame propagation occurs somewhere between 20" and 30° aTDC for a four-stroke cycle. 5. Knock caused by self-ignition could occur in S1 engines as well as in CI engines. 6. Detonation is the minimum combustion time possible without actually having an instantaneous constant-volume reaction. 7. Combustion in a CI engine is a flame front moving through a homogeneous mixture. 8. Fuel injection time in CI engine is usually starting at about 15° bTDC and ending about 5° aTDC. 9. Exhaust blowdown occurs when the exhaust valve starts to open somewhere around 60° to 40° bTDC. 10. The average temperature in the exhaust system of a…
please solve 8.8..
Hom Work عماد داود عبود (35) Q1: The Fiat car has a four strok engine of 1089 C.C capacity -It develops maximum power 32kw at 5000 r-p.m. The volumetric efficiency at this speed is 75% and the air-fuel ratio 13:1, At peak power the theoretical air speed at the choke is 120 m/sec. The coefficient of discharge for the venturi is 0.85 and that of the main petrol jet is 0.66. An allowance should be made for the emulsion tube, the diameter of which can be taken as (1/2.5) of the choke diameter. the Petrol surface is 6 mm blow the choke at this engine condition. Calculate the size of a suitable chake (D) and main jet (d).The specific gravity of petrol is 0.75 and the atmospheric pressure 1.03 bar and temperature 27°c. [D=23.2mm,d=1.296mm]
Hom work عماد داود عبود (35) Q1 The Fiat Car has a four strok engine of 1089 C.C capacity.It develops maximum power 32kw at 5000 r.p.m. The volumetric efficiency at this speed is 75% and the air-fuel ratio 13:1, At peak power the theoretical air speed at the choke is 120 m/sec. The coefficient of discharge for the venturi is 0.85 and that of the main petrol jet is 0.66. An allowance should be made for the emulsion tube, the diameter of which can be taken as (1/2.5) of the choke diameter, the Petrol surface is 6 mm blow the choke at this engine condition. Calculate the size of a suitable choke (D) and main jet (d). The specific gravity of Petrol is 0.75 and the atmospheric pressure 1.03 bar and temperature 27°c. [D=23.2mm,d=1.296mm]
Engine Type Four cylinder Four stroke Diesel engine, Bore: 0.073m, Stroke: 0.0889m Capacity : 1489cc, Power 36 H.P. at 4000 rpm, Torque: 8.5 kg.m at 2250 rpm and Compression Ratio :17.3:1 Explain how to measure the :- (i) Fuel consumption. Manometer readings for air flow. (iii) RPM, power output etc. (iv) Study of various components of diesel engine.
Thanks.
HomWork عماد داود عبود (35) Q1 The Fiat car has a four strok engine of 1089 c.c capacity.It develops maximum power 32kw at 5000 r.p.m. The volumetric efficiency at this speed is 75% and the air-fuel ratio 13:1, At peak power the theoretical air speed at the chake is 120 m/sec. The coefficient of discharge for the venturi is 0.85 and that of the main petrol jet is 0.66. An allowance should be made for the emulsion tube, the diameter of which can be taken as (1/2.5) of the choke diameter. the Petrol surface is 6 mm blow the choke at this engine condition. Calculate the size of a suitable chake (D) and main jet (d). The specific gravity of Petrol is 0.75 and the atmospheric pressure 1.03 bar and temperature 27°c. [D=23.2mm, d=1.296mm]
Please solve it
tech a says that the float type carburetor is the least efficient design used on Briggs engines. Tech b says that Briggs carburetors typically have their mixture screws adjusted to 4 turns out. Who is correct?

SEE MORE QUESTIONS

Recommended textbooks for you

Automotive Technology: A Systems Approach (MindTa…

Mechanical Engineering

ISBN:

9781133612315

Author:

Jack Erjavec, Rob Thompson

Publisher:

Cengage Learning