IP Library Granted Patent US 9,618,248
Granted Patent B2
US 9,618,248 · App. 14/131,322 · Granted Apr 11, 2017

Refrigerant recovery and recharge device

Inventor: Venkatesh Gorur Krishna Iyengar (Banagalore, IN)
Assignee: Mahle International GmbH
F25B45/00B60H1/00585F25B43/02F25B2345/004
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 9,618,248
App. No.
14/131,322
Granted
Apr 11, 2017
Kind
B2
Abstract

A refrigerant recovery and recharge device and a method to recharge oil to refrigeration equipment is disclosed. The refrigerant recovery and recharge device comprises a valve block which is adapted to establish fluid communication between the device and refrigeration equipment and a recharge path adapted to recharge oil to the refrigeration equipment through an outlet in the valve block. The device further comprises at least a first oil container and a second oil container and the valve block comprises a valve with a first inlet and a second inlet. The first oil container is in fluid communication with the first inlet and the second oil container is in fluid communication with the second inlet to recharge oil to the refrigeration equipment. The method for recharging oil recharges oil either from the first oil container or the second oil container in dependence of the type of fuel used in the vehicle.

Claims (29)

1. A refrigerant recovery and recharge device comprising:

a valve block configured to establish fluid communication between said refrigerant and recovery device and refrigeration equipment;

a recharge path configured to recharge oil to said refrigeration equipment through an outlet in said valve block;

a first oil container configured to recharge oil to said refrigeration equipment through said recharge path; and

a second oil container configured to recharge oil to said refrigeration equipment through said recharge path;

wherein the valve block includes a valve with a first inlet and a second inlet, said first oil container being in fluid communication with said first inlet and said second oil container being in fluid communication with said second inlet to recharge oil to said refrigeration equipment; and

wherein said first oil container and said second oil container contain different oils.

2. The device as claimed in claim 1 , wherein said refrigeration equipment is vehicle refrigeration equipment.

3. The device as claimed in claim 1 , wherein said first oil container contains oil used in the refrigeration equipment of a fossil fuel vehicle.

4. The device as claimed in claim 1 , wherein said second oil container contains oil used in the refrigeration equipment of a hybrid vehicle.

5. The device as claimed in claim 1 , wherein said valve in said valve block is used to selectively recharge oil from one of said first oil container and said second oil container to said refrigeration equipment.

6. The device as claimed in claim 1 , wherein one of said first oil container and said second oil container has a male connector and the other has a female connector to connect said first oil container and said second oil container to said valve.

7. A method to recharge oil in vehicle refrigeration equipment using a refrigerant recovery and recharge device, said method comprising:

establishing a fluid communication between the vehicle refrigeration equipment and a refrigerant recovery and recharge device through a valve in a valve block; and

recharging oil to said refrigeration equipment from one of a first oil container, which contains a first oil, and a second oil container, which contains a second oil that is different from the first oil, depending on a type of oil used by said vehicle refrigeration equipment.

8. The method as claimed in claim 7 , wherein the recharging of the oil to said refrigeration equipment includes charging said first oil to the refrigeration equipment of a fossil fuel vehicle.

9. The method as claimed in claim 7 , wherein the recharging of the oil to said refrigeration equipment includes charging said second oil to the refrigeration equipment of a hybrid vehicle.

10. The method as claimed in claim 7 , wherein the recharging of the oil to said refrigeration equipment includes operating said valve in said valve block to selectively recharge oil from one of said first oil container and said second oil container to said refrigeration equipment.

11. The method as claimed in claim 7 , wherein one of said first oil container and said second oil container has a male connector and the other has a female connector to connect said first oil container and said second oil container to said valve.

12. A refrigerant recovery and recharge device comprising:

a valve block configured to establish fluid communication between said refrigerant and recovery device and refrigeration equipment;

a recharge path configured to recharge oil to said refrigeration equipment through an outlet in said valve block;

a first oil container configured to recharge oil to said refrigeration equipment through said recharge path; and

a second oil container configured to recharge oil to said refrigeration equipment through said recharge path;

wherein the valve block includes a valve with a first inlet and a second inlet, said first oil container being in fluid communication with said first inlet and said second oil container being in fluid communication with said second inlet, to selectively recharge oil from one of said first oil container and said second oil container to said refrigeration equipment.

13. The device as claimed in claim 12 , wherein said refrigeration equipment is vehicle refrigeration equipment.

14. The device as claimed in claim 12 , wherein said first oil container contains oil used in the refrigeration equipment of a fossil fuel vehicle.

15. The device as claimed in claim 12 , wherein said second oil container contains oil used in the refrigeration equipment of a hybrid vehicle.

16. The device as claimed in claim 12 , wherein one of said first oil container and said second oil container has a male connector and the other has a female connector to connect said first oil container and said second oil container to said valve.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 19, 2016
From: ROBERT BOSCH GMBH; BOSCH LIMITED
To: MAHLE CLEVITE INC.
Reel/Frame 040670/0069 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 16, 2016
From: MAHLE CLEVITE INC.
To: MAHLE INTERNATIONAL GMBH
Reel/Frame 040062/0891 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2014
From: VENKATESH, G K
To: ROBERT BOSCH GMBH; BOSCH LIMITED
Reel/Frame 031906/0688 →
Priority Claims (1)
IN 2335/CHE/2011 · Jul 8, 2011 · national
Continuity (1)
Related Publication 20140137579A1 · May 22, 2014