SINGLE STAGE ENGINE BLEED

摘要

An environmental control system is provided. The environmental control system may receive pressurized air from a single supply line. A pressure regulating turbomachine may be located within the supply line. A motor-generator may be coupled to the pressure regulating turbomachine. In response to a pressure in the supply line being less than a desired pressure in the environmental control system, the motor-generator may supply energy to the pressure regulating turbomachine, causing the pressure regulating turbomachine to function as a compressor. In response to a pressure in the supply line being greater than a desired pressure in the environmental control system, the pressure regulating turbomachine may function as a turbine and supply energy to the motor-generator.

主权项

1. An environmental control system comprising:
a pressure regulating turbomachine located within a supply line, wherein a location of the supply line is selected such that a minimum pressure in the supply line is less than a desired pressure in the environmental control system, and wherein a maximum pressure in the supply line is greater than the desired pressure in the environmental control system; and a motor-generator coupled to the pressure regulating turbomachine, wherein the pressure regulating turbomachine is configured to supply energy to the motor-generator, and wherein the motor-generator is configured to supply energy to the pressure regulating turbomachine.