#CMT# # / CMT# The appliance has a lid fixed on a vessel to define a sealed
enclosure to contain food. A purging unit (4) has an escape opening (5) connected to an interior of the
enclosure to an exterior of the appliance. A
control unit (10) passes the purging unit from an opening configuration to a closing configuration when a temperature or pressure in the
enclosure rises beyond predetermined triggering thresholds. The
control unit has a secure activation unit (11) placed in a sealed confinement zone (12) to isolate the activation unit from a gas flow (F) coming from the enclosure. #CMT# : # / CMT# The activation unit is formed by a
bimetal element. #CMT#USE : # / CMT# Pressurized food cooking appliance i.e. domestic pressure-
cooker. #CMT#
ADVANTAGE : # / CMT# The appliance is simple and compact in structure so as to limit the manufacturing cost of the appliance and to improve the aesthetic appearance of the appliance, so that the appliance is easy to maintain. The activation unit is encapsulated in the confinement zone which is sufficiently sealed to separate the activation unit from the gas flow contained in the enclosure and permits the activation unit to escape from the gas flow primarily containing air or
water vapor, so that the activation unit is protected from the physicochemical aggressions of the gas flow. The design of the appliance protects the
control unit from
corrosion, clogging or scaling, thus limiting the risks of mechanical default of the control unit such as triggering threshold or course of
moving parts. The purging unit purges the air effectively and accelerates the supply of the air at
operating temperature and operating pressure and the integrity and the operation of the purging unit and the control unit to each other is durably preserved, so that robustness of the purging unit and the control unit is improved, thus guaranteeing performance reliability, robustness and
longevity of the appliance. The separation of the activation unit and the gas flow allows avoiding any
pollution of the cooking
atmosphere and food by the units constitutive of the control unit, thus durably guaranteeing the
food quality of the appliance. The design of the appliance avoids complexity of manufacture and implementation of the storage and transport units of the fluid such that risk of escape or
bursting and failure of the control units related to the fluid
exposure at high temperatures and pressures is avoided. #CMT#DESCRIPTION OF DRAWINGS : # / CMT# The drawing shows a longitudinal sectional view of a purging module including a purging unit and a control unit, with the purging unit in an opening configuration. F : Gas flow 4 : Purging unit 5 : Escape opening 10 :
Control unit 11 : Secure activation unit 12 : Sealed confinement zone.