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.

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