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Proposed modifications to the Peregrine engine mounting to improve clutch operation.


Identifier  ExFiles\Box 2\10\  10-page04
Date  3rd September 1932
  
X122

To BY. {R.W. Bailey - Chief Engineer} from E. {Mr Elliott - Chief Engineer}

c. Hs. {Lord Ernest Hives - Chair}

re Peregrine(Experimental Bentley car never produced / Aero Engine) Engine Mounting.

With reference to the end flexibility of the Peregrine(Experimental Bentley car never produced / Aero Engine) engine mounting affecting the clutch operation, R. {Sir Henry Royce} is proposing to overcome this trouble by anchoring the inner end of the clutch pedal shaft to the crankchamber with a horizontal link so that the clutch shaft is located thereby in a horizontal plane on the inner end only, and the force of disengaging the clutch will then become self-contained.

The clutch pedal shaft will still be maintained as regards its vertical position by its present mounting but must be provided with a horizontally slotted hole in the supporting member to allow it to follow the movement of the crankchamber due to temperature expansion and other causes.

In the case of the Bensport(Codename for 3 1/2-litre Bentley) we understand that the clutch pedal shaft is being supported vertically by a link from the crossmember carrying the rear end of the engine but is located fore and aft by a horizontal link anchored to the crankcase.

E. {Mr Elliott - Chief Engineer}
  
  
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).


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