SIMPLIFIED ENGINE BLEED SUPPLY WITH LOW PRESSURE ENVIRONMENTAL CONTROL SYSTEM FOR AIRCRAFT

摘要

A gas turbine engine assembly for an aircraft includes a fan section delivering air into a main compressor section. The main compressor section includes a first compressor section and a second compressor section operating at a higher pressure than the first compressor section. The main compressor section compresses air and delivers air into a combustion section where the air is mixed with fuel and ignited to generate products of combustion that are passed over a turbine section to drive the fan section and main compressor sections. An environmental control system includes a low pressure tap at a location on the first compressor section of the main compressor section. The low pressure tap communicates airflow to a first passage leading to a downstream outlet. A compressor is driven by an electric motor. A combined outlet intermixes airflow from the first passage and from the compressor driven by the electric motor and passes the airflow downstream to be delivered to an aircraft use. An environmental control system is also disclosed.

主权项

1. A gas turbine engine assembly for an aircraft comprising:
a fan section delivering air into a main compressor section, said main compressor section including a first compressor section and a second compressor section operating at a higher pressure than the first compressor section, said main compressor section compressing air and delivering air into a combustion section where the air is mixed with fuel and ignited to generate products of combustion that are passed over a turbine section to drive said fan section and main compressor sections; an environmental control system including a low pressure tap at a location on the first compressor section of the main compressor section, wherein the low pressure tap communicates airflow to a first passage leading to a downstream outlet, and a compressor driven by an electric motor; and a combined outlet intermixing airflow from the first passage and from the compressor driven by the electric motor and passing the airflow downstream to be delivered to an aircraft use.