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1. (WO2018025048) IMPROVEMENTS IN OR RELATING TO THROTTLE VALVES

Pub. No.:    WO/2018/025048    International Application No.:    PCT/GB2017/052298
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Sat Aug 05 01:59:59 CEST 2017
IPC: F02D 9/10
F02D 11/10
Applicants: NORGREN GT DEVELOPMENT CORPORATION
SCHOFIELD, Murray
Inventors: SCHOFIELD, Murray
SEALY, Mark
DENMARK, Martin
Title: IMPROVEMENTS IN OR RELATING TO THROTTLE VALVES
Abstract:
A combined torque motor and throttle valve assembly (10). The throttle valve (14) includes a housing (16) having a bore (22) extending therethrough and a flapper element (24) rotatably mounted within the bore (22). The torque motor (12) includes a stator (42) having a coil (46) and a core (44). The torque motor (12) and throttle valve (14) share a common shaft (76) which extends from the torque motor (12) and through the bore (22) of the housing (16) and to which shaft (76) the flapper element (24) is fixed for rotation. The shaft (76) is supported by a first bearing (84) located on a first side of the bore (22) within the torque motor (12), and a second bearing (86) located within the housing (16) of the throttle valve (14) on the opposing side of the bore (12) to the first bearing (84).