About 24 results
https://drivepatents.com/patents/971661 · 6 Aug 2014
Disclosed is a method of updating a vehicle air-conditioning apparatus such that a first air-conditioning apparatus (100a) which is disposed in a frame (8) mounted on a vehicle (1) and in which an HCFC or CFC refrigerant is used is updated to a second air-...
https://drivepatents.com/patents/990737 · 15 May 2013
A refrigerant recovery unit 100 is provided and includes a safe purging mode. The safe purging mode allows non-condensable gases to be incrementally purged from a storage tank when the determined ideal vapor pressure is high, such as 40 p.s.i., in order to...
https://drivepatents.com/patents/991727 · 17 Apr 2013
In a vehicle air-conditioning device, refrigerant leakage is diagnosed precisely without any restrictions from an operating condition of the air-conditioning device. When the operating condition of the vehicle air-conditioning device is stable, a threshold...
https://drivepatents.com/patents/995399 · 5 Dec 2012
A gas analyzer system (1) to determine the concentration of gases in an automotive air conditioning system (2), the gas analyzer system (1) comprising: an infrared multi-detector device (5) equipped with a gas analysis chamber (6); an emitter source (7) to...
https://drivepatents.com/patents/995903 · 21 Nov 2012
Refrigerant recovery unit is provided that includes steps to test for refrigerant leaks. The steps include providing a close loop with the hoses that connect to a refrigerant system, measuring the ambient temperature, calculating the vapor pressure with th...
https://drivepatents.com/patents/1003508 · 11 Apr 2012
Refrigerant processing equipment is provided. The refrigerant processing equipment may include: a vacuum pump; an outlet for draining vacuum pump lubricating oil from the vacuum pump; a fluid container; and a conduit configured to provide a fluid connectio...
https://drivepatents.com/patents/1008762 · 12 Oct 2011
A station (1) for charging/recovering a refrigerant into/from the air-conditioning system (2) of a vehicle (3), comprising a refrigerant intake/injection unit (10) from/into said air-conditioning system (2); the station comprises a system (11) configured t...
https://drivepatents.com/patents/1009553 · 14 Sep 2011
A method for removing a residual fluid contained in an external service hose (13) (15) of a refrigerant recharging/recovering machine (1) which comprises: a main hydraulic circuit (10) provided with an external connector (12) (14), connected to which is a ...
https://drivepatents.com/patents/1009668 · 7 Sep 2011
A maintenance device (1) for conditioning systems comprises a recycling unit (2) connectable to a conditioning system to draw and purify a quantity of refrigerating fluid from said conditioning system, a depositing tank (3) located operationally downstream...
https://drivepatents.com/patents/1009874 · 24 Aug 2011
A control system (3) for controlling a machine for charging/recovering a refrigerant (1) in an vehicle air-conditioning system (2) structured to receive oil from a charging reservoir (8) so as to supply it in said system (2). The control system (3) compris...