Honeywell International Inc.

Peter Mark Anderson

Timothy J Lippold

Roger R Sanger

Karen Hosler

Wai Pak Wong

Greg Chapman

Paul J Cairns

Methods and apparatus are provided controlling aircraft cabin pressure, and more specifically engine bleed air manifold pressure, during aircraft descent. An aircraft engine bleed air manifold control pressure setpoint is to either a descent pressure setpoint or a cruise pressure setpoint by determining a rotational speed of an aircraft engine component, determining a component speed setpoint value, and determining aircraft vertical speed. The engine bleed air manifold control pressure setpoint is set to the descent pressure setpoint if either the determined rotational speed of the aircraft engine component is below the component speed setpoint value or the aircraft vertical speed is less than a predetermined vertical speed value.

Aircraft cabin pressure descent detection and control system and method

A temperature sensor arrangement () includes a sensor cavity (), a temperature sensing element () being positioned along a center line () of the sensor cavity () and generating a signal indicating temperature of air flowing thereto, and a generally cylindrical outer casing () surrounding the sensor cavity (). In one embodiment, the outer casing () includes a pattern of flow passages () for allowing air flow to the temperature sensing element () in the sensor cavity (), the flow passages () being angled such that there is no direct line of air flow from an exterior of the outer casing () to the sensing element (). In another embodiment, the flow passages () are arranged in an offset pattern relative to a center line () of the housing cavity (), such that there is no direct line of air flow from an exterior of the outer casing () to the sensing element ().

Sensor arrangement having an air inflow pattern for preventing direct debris impact

Growing community of inventors

Georgetown, Canada

Peter Mark Anderson