About 20 results
https://drivepatents.com/patents/1073939 · 21 Sep 2005
The vehicle air conditioner comprises an electric condenser (11) for air conditioning which is charged from an in-vehicle battery (2), and an inverter (16) for an electrically operated compressor (20) for air conditioning which is supplied with electric po...
https://drivepatents.com/patents/1076812 · 15 Jun 2005
The PTC heating elements (3) are supplied with electrical power through a control system (4) and relays (5) and the return circuit passes through a switch (6) which is interrupted by a mass (7) during an impact.
https://drivepatents.com/patents/1081978 · 1 Dec 2004
The system has an electronic control unit (66) detecting a collision of a vehicle and activating a safety device. A circulation passage (30) is extended from an engine room of the vehicle by an instrument space (13) between the room and a vehicle compartme...
https://drivepatents.com/patents/1085808 · 7 Jul 2004
A solenoid valve 5 and a check valve 7 are arranged at an inlet and an outlet of the evaporator 6. When system operation is to be stopped, the solenoid valve 5 is closed while the compressor 1 continues to operate for a predetermined time to suck out refri...
https://drivepatents.com/patents/1091598 · 26 Nov 2003
An outflow prevention device 5, 5a, 5b, 5c for preventing refrigerant from flowing out into a vehicle compartment when an evaporator 6 has ruptured comprises a shut valve 8 in a passage via which refrigerant introduced from an expansion device is allowed t...
https://drivepatents.com/patents/1092752 · 8 Oct 2003
A control unit (5) measures the power consumed by a PTC element (3), and compares the measured power to a specified power threshold value, Plim, which is smaller than a minimum heat output, Pmin. The control unit recognizes the interruption of air current ...
https://drivepatents.com/patents/1095701 · 28 May 2003
The device has a fuel dispensing pump (6) and a controller (2) (microcontroller) that outputs control signals for the pump. A re-triggerable mono-flop (3) that receives periodic signals from the controller at one input outputs a continuous signal at the ou...
https://drivepatents.com/patents/1099299 · 2 Jan 2003
The method involves measuring the coolant pressure (p) and temperature on the high pressure side and evaluating for possible coolant loss. The temperature and pressure are measured between the compressor and condenser. The measured coolant temperature is d...
A method and a system for monitoring the state of filling of a motor-vehicle air-conditioning system
https://drivepatents.com/patents/1106081 · 13 Mar 2002
The method is characterized in that: the compressor (1) is activated for a predetermined period of time (T) whilst the engine (E) of the motor vehicle is rotating at a predetermined, substantially constant, rate and whilst the fan (7) associated with the e...
https://drivepatents.com/patents/1112019 · 27 Jun 2001
The method of controlling the refrigerant fluid feed to a motor vehicle air conditioning circuit involves using a refrigerating power of the radiator from a temperature sensor placed in contact with the radiator or downstream of it in the cooled air flow. ...