Hamilton Sundstrand Corporation

United Technologies Corporation

Michael F Cass

Keith E Short

Gabriel L Suciu

Brian D Merry

Christopher Marc Dye

James S Elder

Craig R LeGros

Adrian L Stoicescu

Joshua Adams

Jeffrey M Makulec

Brandon T Kovach

Joseph Wetch

Brian Kent Rockwell

Gregory W Vermillion

An impeller spinner for a fuel pump can include a head and a shank. The head can have a base at one end and a tip at an opposite end. The shank can have a body portion nearest the head with a first diameter and a fastener portion adjacent to the body portion at an end opposite the head with a second diameter.

Anti-icing impeller spinner

An engine accessory system for a gas turbine engine includes a first accessory component defined along an accessory axis and a second accessory component mounted to the first accessory component along the accessory axis.

Gas turbine engine with stacked accessory components

An apparatus is provided and includes a rotatable shaft on which a first bevel gearbox is disposed, a layshaft on which a second bevel gearbox is disposed, the first and second bevel gearboxes being coupled to transmit shaft rotation to the layshaft, an accessory gearbox to which the layshaft and one or more accessories are coupled and a generator operably disposed on the layshaft between the second bevel gearbox and the accessory gearbox.

Layshaft generator

A stability valve assembly includes a centrifugal pump and a valve downstream of the centrifugal pump. The valve includes a valve member that is movable along a valve axis within a valve body to control a fluid flow from the centrifugal pump. The valve member has a first orifice connecting a valve input to a valve chamber, and has at least one second orifice connecting a valve outlet to the valve chamber. A reference pressure upstream of the centrifugal pump applies pressure to a stepped portion of the valve member such that an amount of negative feedback provided by the valve assembly is proportional to a rotational speed of the centrifugal pump.

Speed-dependent stability valve

An accessory gearbox system for a gas turbine engine includes an accessory compressor mounted to a gearbox housing. The gearbox housing defines a seal air core, and the gearbox housing communicates a seal airflow through the seal air core.

Accessory gearbox system with compressor driven seal air supply

Growing community of inventors

Rockford, IL, United States of America

Michael F Cass