(over run mode), the fuel is led direct ly to the circu-
lar port by th e zer o delivery rest rictor (10) (Fig. 6).
The fuel pressur e relief valve (9) limits th e fuel
pr essu re which exist s a t the fuel qua ntity control
valve (11) to approxima tely 5 ba r (72.5 psi). If the
pr essu re is exceeded, the pressu re relief valve opens
and passes t he fuel to the r etur n flow (6) (F ig. 6).
The fu el pr essu re relief valve (9) direct s a portion
of the fuel as a lubricant to the eccen tric shaft (8)
(Fig. 6).
14 - 14 FUEL DELIVERY VA
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