Tilt monitor and stress controller for absorption type refrigerator

Patent metadata

Field	Value
Publication number	US-9228773-B2
Application number	US-201213415380-A
Country	US
Kind code	B2
Filing date	Mar 8, 2012
Priority date	Mar 8, 2011
Publication date	Jan 5, 2016
Grant date	Jan 5, 2016

Abstract

An automated control device for monitoring the position angle of an absorption type cooling system or refrigerator that circulates a refrigerant, an absorbent, and a diffusion agent within a conduit system includes a housing, a controller with a processor within the housing, a sensor in communication with the controller for measuring the angle of inclination of the refrigerator, and a stress counter connected to the controller for counting increments of stress induced into the cooling system. The tilt monitoring control method prevents system stress, which in turn prevents personal and property damage due to hydrogen gas leaks, fires and explosions.

First claim

What is claimed is:

1. An automated control device for a refrigerator that has a closed fluid absorption type cooling system with a heat source for heating a mixture of flowable refrigerant and absorbent, said system includes a diffusion agent, the device comprising:
a sensor for measuring the angle of inclination of the refrigerator;
a stress counter/recorder which counts and records a cumulative value representing stress induced into the cooling system;
a controller for receiving signals from the sensor, said controller in communication with a processor executing instructions for:
(i) analyzing the cumulative value representing stress from the stress recorder to identify a condition;
(ii) comparing said condition with a set of condition classifications; and,
(iii) limiting the time of operation of the refrigerator according to a time specified by at least one of said classifications.

2. The device according to claim 1 , wherein the refrigerant is ammonia, the absorbent is water, and the diffusion agent is hydrogen or helium.

3. The device according to claim 1 , wherein said heat source is a gas burner.

4. An automated control device for monitoring an angle of inclination of an absorption type cooling system or refrigerator that circulates a refrigerant, an absorbent, and a diffusion agent within a conduit system, the device comprising:
a housing;
a controller with a processor within the housing;
a sensor in communication with the controller for measuring the angle of inclination of the refrigerator;
a stress counter/recorder connected to the controller for counting and for recording cumulative values representing increments of stress induced into the cooling system; and
wherein the controller receives signals and data from the sensor representing information about the angle of inclination of the cooling system or refrigerator, said processor analyzes said signals and instructs the stress counter to increment said cumulative values in proportion to which the cooling system or refrigerator is off level.

5. The device according to claim 4 , wherein the refrigerant is ammonia, the absorbent is water, and the diffusion agent is hydrogen or helium.

6. The device according to claim 4 , wherein said heat source is a gas burner.

7. The device according to claim 4 , wherein the controller comprises a user interface for accessing information about the sensor and the stress counter.

8. The device according to claim 4 , wherein the stress counter is assessed using zones, each of said zones comprising increments of five degrees off level.

9. A method for controlling operation of an absorption type cooling system or refrigerator comprising the steps:
providing a sensor in communication with a controller for measuring the angle of inclination of the cooling system or refrigerator, the controller comprising a processor;
providing a stress counter connected to the controller; and
by way of the processor, receiving a signal from the sensor when the cooling system or refrigerator is off level and instructing that the stress counter be incremented in a cumulative value in proportion to which the cooling system or refrigerator is off level.

10. The method according to claim 9 , wherein said cooling system or refrigerator comprising a conduit system, a refrigerant, an absorbent, and a diffusion agent are contained within said conduit system, and the diffusion agent is hydrogen or helium.

Assignees

• Leistner David William
• Heagey Robert C
• Dometic Sweden Ab

Inventors

• Leistner David William
• Heagey Robert C

Classifications

• F25D23/00 Primary

  General constructional features (F25D21/00 takes precedence) · CPC title

• F25B15/10

  with inert gas ({F25B15/004, F25B15/006, F25B15/008}, F25B15/12, F25B15/14, F25B15/16 take precedence) · CPC title