About 24 results
https://drivepatents.com/patents/1387558 · 3 Jun 2026
Compositions, systems and methods for introducing lubricants, and additives, that are designed to work with environmentally friendly refrigerants into vehicle heat management systems including passenger compartment air conditioning (A/C) systems are disclo...
https://drivepatents.com/patents/1378717 · 26 Feb 2026
A method for servicing a vehicle an air-conditioning system of a vehicle comprises initiating refrigerant filling into the vehicle air-conditioning system. The method also comprises, after initiating the refrigerant filling, tracking a variation in a rate-...
https://drivepatents.com/patents/1394041 · 2 Jul 2025
A vacuum pump servicing adapter 4 for servicing a vacuum pump 3 of a service unit 1 for a vehicle air conditioning system, the service unit 1 and a method for servicing the vacuum pump 3 are provided.The vacuum pump servicing adapter 4 comprises a connecti...
https://drivepatents.com/patents/1394642 · 26 Mar 2025
Compositions, systems and methods for introducing lubricants, and additives, that are designed to work with environmentally friendly refrigerants into vehicle heat management systems including passenger compartment air conditioning (A/C) systems are disclo...
https://drivepatents.com/patents/1372650 · 16 Jan 2025
A device protects a vehicle air conditioning system and includes a pressure estimator to estimate a compressor refrigerant discharge pressure based on predetermined vehicle and air conditioning system information. The device includes a pressure switch to s...
https://drivepatents.com/patents/1399430 · 22 May 2024
Compositions, systems and methods for introducing lubricants, and additives, that are designed to work with environmentally friendly refrigerants into vehicle heat management systems including passenger compartment air conditioning (A/C) systems are disclo...
https://drivepatents.com/patents/943389 · 11 May 2016
Device for servicing an air conditioning system (27), in particular for air conditioning systems that use CO2 or R744 as refrigerant. The device has at least a first coupling (10) for connecting the device to a service connection of the air conditioning sy...
https://drivepatents.com/patents/943388 · 11 May 2016
Device and method for servicing an air conditioning system, wherein the device comprises at least a first coupling (10) for connecting the device to a first service connection of the air conditioning system, a reservoir (3) for the refrigerant, a compresso...
https://drivepatents.com/patents/955548 · 18 Nov 2015
Device for servicing an air conditioning system, in particular for air conditioning systems that use CO2 or R744 as refrigerant. The device has a low-pressure-side region (A), which can be connected via a low-pressure-side coupling (1) to a service connect...
https://drivepatents.com/patents/949395 · 19 Aug 2015
The invention relates to a method for detecting leaks and refrigerant escapes in hydraulic circuits of refrigerant filling systems, in particular for filling air conditioning systems for vehicles. An operating behavior of a delivery pump that deviates from...