Theory of Machines

9

GOVERNORS

Chapter Outline

9.1 Introduction

9.2 Types of Governors

9.3 Terminology

9.4 Centrifugal Governors

9.4.1 Simple Watt Governor

9.4.2 Gravity-Loaded Type Governors

9.4.3 Spring-Loaded Governors

9.4.4 Inertia Governor

9.5 Performance of Governors

9.5.1 Definitions

9.5.2 Effort and Power of a Porter Governor

9.5.3 Quality of a Governor

9.5.4 Controlling Force

9.5.5 Coefficient of Insensitiveness

9.1 INTRODUCTION

A governor is a device to maintain, as closely as possible, a constant mean speed of rotation of the crankshaft over long periods during which the load on the engine may vary. The governor meets the varying demand for power by regulating the supply of working fluid.

9.2 TYPES OF GOVERNORS

There are basically two types of governors. ...