IP Library › Granted Patent US 8,839,761
Granted Patent B2
US 8,839,761 · App. 12/830,604 · Granted Sep 23, 2014

Augmenter for compound compression engine

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Quick Facts
Patent No.
US 8,839,761
App. No.
12/830,604
Granted
Sep 23, 2014
Kind
B2
Abstract

A rotary engine includes a first rotary unit operable to provides a first phase of compression to a fresh air charge drawn in through an inlet port to the first rotary unit. A second rotary unit in communication with the first rotary unit through a first passage, the second rotary unit operable to provide a second phase of compression to the first phase of compression, a combustion phase and a first phase of expansion, the second rotary unit in communication with the first rotary unit through a second passage such that the first rotary unit provides a second phase of expansion to the first phase of expansion and an exhaust phase that exhausts the first rotary unit via an exhaust port. A first fuel injector is in communication with the second rotary unit operable to initiate the combustion phase and a second fuel injector is in communication with the first rotary unit operable to selectively initiate augmented operation.

Claims (11)

1. A process of extracting work out of a rotary engine comprising:

drawing a fresh air charge into a first rotary unit;

compressing the fresh air charge into a compressed air charge and a remaining compressed air charge in the first rotary unit;

transmitting the compressed air charge from the first rotary unit to a second rotary unit;

compressing the compressed air charge into a compound compressed air charge in the second rotary unit;

injecting a first fuel into the compound compressed air charge in the second rotary unit;

combusting the first fuel with the compound compressed air charge into an exhaust in the second rotary unit;

expanding the exhaust in the second rotary unit;

transmitting the exhaust from the second rotary unit into the remaining compressed air charge in the first rotary unit;

injecting a second fuel into the exhaust and the remaining compressed air charge in the first rotary unit; and

combusting the second fuel with the remaining compressed air charge and the exhaust within the first rotary unit to initiate an afterburning mode.

Assignments (3)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jul 28, 2023
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: AEROJET ROCKETDYNE OF DE, INC.
Reel/Frame 064424/0064 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Jun 17, 2016
From: AEROJET ROCKETDYNE OF DE, INC.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 039070/0109 →
CHANGE OF NAME Recorded May 7, 2014
From: PRATT & WHITNEY ROCKETDYNE, INC.
To: AEROJET ROCKETDYNE OF DE, INC.
Reel/Frame 032845/0167 →