Patent ID: 7827781

Claim:
An integral propulsion assembly comprising: a chamber; an injection plate having a top portion and a base portion connected by a series of rib elements forming a series of cavities between the rib elements in communication with the chamber; an injection element extending from the top portion of the injection plate and in communication with the chamber; a first array of injectors located along the series of rib elements for injecting liquid propellant into the chamber to achieve at least one first intersection point; a second array of injectors located circumferentially on the injection element for injecting liquid oxidizer into the chamber to achieve at least one second intersection point; at least one pressure transducer for measuring pressure located in at least one of the series of cavities; at least one injector for injecting gaseous oxidizer into the at least one of the series of cavities; wherein the at least one injector injects gaseous oxidizer into the at least one cavity and thereby dampen the lateral variable pressure within the at least one cavity; wherein the injection element extending from the injection plate dampens the radial variable pressure inside the chamber; and wherein the injection element and the injection plate dampen the longitudinal variable pressure inside the chamber.