Sensor impulse unit

摘要: An impulse tool (20) having a housing (22), motor (26), drive mechanism (30), (28), trigger (67), and sensor (32) for automatic shut-off is disclosed. The uses spring-biased ball (144) that sits on seat (149) adjacent an entry orifice (108) piston (112) such when predetermined non-transient torque reached, the strength, duration frequency of pulses working fluid entering will lift sufficiently to impose progressively allow triggering height which starts (20). A delay also disclosed may include regulator (172), dashpot (170), spring latch (204), bar (56) or latch. method cooling with cold, dense air throughout