(under subclass 6) Apparatus wherein the motor is provided with at least two expansible working chambers, a prior one of the chambers receiving expansible motive fluid and having a passage for exhausting the fluid into a subsequent chamber for expansion therein; and wherein a further fluid passage is provided which may be used to additionally supply motive fluid to the subsequent chamber simultaneously with the exhaust fluid from the prior chamber.
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11, for expansible chamber motors which operate by multiple expansion, i.e., the motive fluid is supplied to a first working chamber and then discharged to a second working chamber for expansion therein and which may be modified so that inlet motive fluid is supplied directly to the second chamber and the first chamber is exhausted to some place other than the second chamber.
