ClassID:

136952

F01D21/20 - CPC Classification

Classification description:

Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for Checking operation of shut-down devices

Recent Application in this class:
#1
20220195886
2022-06-23

SYSTEM AND METHOD FOR MITIGATING BOWED ROTOR IN A GAS TURBINE ENGINE

#2
20220136405
2022-05-05

SYSTEMS AND METHODS OF SERVICING EQUIPMENT

#3
20210010393
2021-01-14

Single-shaft combined cycle plant, testing method for single-shaft combined cycle plant, and control device for single-shaft combined cycle plant

#4
20200271018
2020-08-27

SYSTEM AND METHOD FOR MANAGING POWER TO AN ENGINE CONTROLLER

#5
20180355764
2018-12-13

Low-power bowed rotor prevention system

#6
20180328222
2018-11-15

Turbine overspeed trip test system

#7
20180058250
2018-03-01

Spindle vibration evaluation module for a valve and actuator monitoring system

#8
20170268432
2017-09-21

Emergency shutoff device and emergency shutoff system provided with same

#9
20170218791
2017-08-03

Method for controlling a bistable shutoff valve for an aircraft engine

#10
20170159486
2017-06-08

Method for validation of an investigated sensor and corresponding machine

#11
20160123183
2016-05-05

Method for testing an overspeed protection mechanism of a single-shaft combined-cycle plant

#12
20140360255
2014-12-11

Monitoring the fuel supply cutoff valve for an engine

#13
20130218437
2013-08-22

Gas turbine sequencing method and system

#14
20120156004
2012-06-21

Method for shutting down a turbomachine

#15
20120109581
2012-05-03

DIAGNOSTIC SYSTEM AND METHOD FOR AN ESSENTIAL TURBINE VALVE

#16
20120091373
2012-04-19

Steam valve apparatus

#17
20120085101
2012-04-12

Method of testing a system for protecting a turbomachine against overspeed while starting

#18
20110232259
2011-09-29

Method and system for testing an overspeed protection system of a powerplant machine

#19
20110232258
2011-09-29

Method and system for testing an overspeed protection system of a powerplant

#20
20110041503
2011-02-24

Turbine Protection Device

#21
20090248363
2009-10-01

Method of multi-level fault isolation design

#22
20060230755
2006-10-19

Electronically controllable and testable turbine trip system

#23
20050204740
2005-09-22

System and method of cooling steam turbines

#24
20050114082
2005-05-26

Method and apparatus for detecting rub in a turbomachine

#25
20050016175
2005-01-27

System and method of cooling steam turbines