PRESSURE GOVERNOR DEVICE

• Main Authors: NUMATA KAORI, WATABIKI DAISAKU, FUKUCHI FUMIHIKO
• Format: Patent
• Language: English
• Published: 20.03.2014
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; CONTROLLING; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PHYSICS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

PROBLEM TO BE SOLVED: To provide a pressure governor device for achieving stable behavior when starting the pressure governor device even though a start and an operation stop are easily performed.SOLUTION: A motor-operated valve 30 is provided in a pilot passage 5 such that the motor-operated valve 30 can be subjected to an opening/closing operation to vary communication opening between an auxiliary ball 14 and a downstream side pipe 2. When the motor-operated valve 30 is closed to block the pilot passage 5, a main governor 11 stops operation in a closed state, and when the motor-operated valve 30 is opened, the pilot passage 5 is made to communicate to operate the main governor 11. When a start operation signal for starting the main governor 11 is outputted by remote control, control means restricts the speed of the motor-operated valve 30 to cause low-speed operation, thereby gradually increasing the communication opening of the pilot passage 5 by taking predetermined time within the range of cushioning opening smaller than communication opening during operation. When the predetermined time passes, the motor-operated valve 30 is opened completely to make the communication opening of the pilot passage 5 the communication opening during operation.