THROTTLE VALVE FOR ADJUSTING THE FEEDING OF A GAS TO A FUEL CELL AND ELECTRIC DRIVE VEHICLE INCLUDING THE THROTTLE VALVE

摘要

A throttle valve (10) for adjusting the feeding of a gas to a fuel cell (3), which includes: a valve body (12), divided into a first (12A) and a second portion (12B); a gas feeding duct (14) obtained in the first portion (12A); a throttle plate (15) arranged in the feeding duct (14); a shaft (16) which is rotatably mounted in the first portion (12A) and supports the throttle plate (15); and an actuator (8) which is mounted in the second portion (12B) and is configured to rotate the shaft (16). The throttle valve (10) further comprises a magnetic joint (20), which transmits the motion from the actuator (8) to the shaft (16) and is divided into a first half (25) coupled to the shaft (16), and a second half (26) facing the first half (25) and coupled to the actuator (8). The throttle valve (10) also includes an insulating wall (27) which insulates the first partition (12A), in a pneumatically sealed manner, from the second portion (12B) of the valve body (12) and is arranged between the two halves (25, 26) of the magnetic joint (20).