Correct Answer - Option 4 : Scotch yoke mechanism
Explanation:
Mechanism and Inversion:
- When one of the links of a kinematic chain is fixed, the chain is known as a mechanism.
- A mechanism with four links is known as a simple mechanism, and the mechanism with more than four links is known as a compound mechanism.
- We can obtain as many mechanisms as the number of links in the kinematic chain by fixing, in turn, different links in a kinematic chain.
- This method of obtaining different mechanisms by fixing different links in a kinematic chain is known as the inversion of a mechanism.
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INVERSION
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Four Bar Chain Mechanism
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Beam Engine (crank and lever mechanism)
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Coupling rod of a locomotive (double crank mechanism)
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Watt’s Indicator (Double lever mechanism)
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Single Slider Crank Mechanism
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- First Inversion
- Reciprocating engine or compressor.
- Second Inversion
- Whitworth quick return mechanism, Rotary engine etc.
- Third Inversion
- Slotted crank mechanism, Oscillatory engine.
- Fourth Inversion
- Hand pump, Pendulum pump or Bull engine.
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Double Slider Crank Mechanism
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- Elliptical trammels
- Scotch yoke mechanism
- Oldham’s coupling
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Ackermann Steering is an inversion of class-II Four bar chain mechanisms.
