Siemens-bendix Automotive Electronics Limited

Allan W DeJong

Paul Douglas Perry

Michael R Sewell

Various embodiments of sensors are disclosed which contain an inertial mass that is magnetically biased to an initial position. In response to a certain deceleration, the mass is caused to swing about an axis and operate a switch. In some embodiments, the switch is one that is held open by the inertial mass' presence in its initial position and closes when the inertial mass swings away from its initial position, while in other embodiments it is one whose contacts are bridged by a conductive portion of the inertial mass only after the inertial mass has been displaced from its initial position, while in still other embodiments it is a reed switch that is magnetically operated. Motion of the inertial mass can be undampened or dampened. If dampening is desired, it can be accomplished either pneumatically or electromagnetically.

Velocity change sensors

A heater control valve comprising: a valve body defining a chamber and a bypass passage extending therefrom. A first conduit in fluid communication with the bypass passage for defining a first inlet port and a first exit port adapted to communicate coolant to an external device. A flexible divertor mounted in the bypass passage and extending into the first conduit for diverting fluid into the bypass passage as a function of flow rate. A second conduit, in communication with the chamber defining a second inlet adapted to receive flow from the external device and a second outlet. The valve body further including a first seating surface disposed about an upstream end of the bypass passage and a second seating surface disposed about the second inlet, and a bypass valve, rotatable from a first position in sealing engagement with the first seating surface to a second position in sealing engagement with the second seating surface, and an actuator, for rotating the bypass valve from the first position to the second position in response to control signals.

Heater control valve with flexible deflector

A heater control valve comprising: a valve body defining a chamber and a bypass passage extending therefrom. A first conduit in fluid communication with the bypass passage for defining a first inlet port and a first exit port adapted to communicate coolant to an external device. A second conduit, in communication with the chamber defining a second inlet adapted to receive flow from the external device and a second outlet. The valve body further including a first seating surface disposed about an upstream end of the bypass passage and a second seating surface disposed about the second inlet, and a bypass valve, rotatable from a first position in sealing engagement with the first seating surface to a second position in sealing engagement with the second seating surface, and an actuator, for rotating the bypass valve from the first position to the second position in response to control signals.

Growing community of inventors

Chatham, Canada

Allan W DeJong