Compressor diagnostic method

• US 20060016200A1
• Filed: 08/11/2005
• Published: 01/26/2006
• Est. Priority Date: 03/27/2001
• Status: Active Grant

• Current Assignee: Hung Pham, Nagaraj Jayanth
• Original Assignee: Hung Pham, Nagaraj Jayanth
• Inventors: Jayanth, Nagaraj, Pham, Hung
• Granted Patent: US 7,162,883 B2
• Time in Patent Office: Days
• US Class Current: 62/126
• CPC Class Codes: B25J 9/1687 Assembly, peg and hole, palletising, straight line, weaving pattern movement
• CPC Class Codes: F04B 51/00 Testing machines, pumps, or pumping installations
• CPC Class Codes: F04C 18/0215 where only one member is moving
• CPC Class Codes: F04C 2270/07 Electric current
• CPC Class Codes: F04C 2270/784 Light
• CPC Class Codes: F04C 2270/80 Diagnostics
• CPC Class Codes: F04C 2270/86 Detection
• CPC Class Codes: F04C 2270/90 Remote control, e.g. wireless, via LAN, by radio, or by a wired connection from a central computer
• CPC Class Codes: F04C 23/008 Hermetic pumps
• CPC Class Codes: F04C 28/28 Safety arrangements; Monitoring
• CPC Class Codes: F04C 29/0085 Prime movers
• CPC Class Codes: F25B 2700/151 of the compressor motor
• CPC Class Codes: F25B 2700/1931 Discharge pressures
• CPC Class Codes: F25B 2700/2106 of fresh outdoor air
• CPC Class Codes: F25B 2700/2116 of a condenser
• CPC Class Codes: F25B 49/005 of safety devices F25B49/02 and F25B49/04 take precedence
• CPC Class Codes: F25B 49/025 Motor control arrangements
• CPC Class Codes: H02H 7/08 for dynamo-electric motors

Abstract

A method includes determining base-line operating parameters for a compressor, generating a high-side signal indicative of high-side compressor operating conditions, generating a low-side signal indicative of low-side compressor operating conditions, and comparing the high-side and low-side signals to the base-line operating parameters to determine a system operating condition.

Claims

1. A method comprising:

determining base-line operating parameters for a compressor;

generating a high-side signal indicative of high-side compressor operating conditions;

generating a low-side signal indicative of low-side compressor operating conditions; and

comparing said high-side and low-side signals to said base-line operating parameters to determine a system operating condition.

2. The method of claim 1, further comprising recording and storing said high-side signals and said low-side signals.

3. The method of claim 1, further comprising sending said low-side signal and said high-side signal to a diagnostic tool.

4. The method of claim 1, further comprising illuminating a light-emitting device indicative of said system operating condition.

5. The method of claim 1, further comprising illuminating a light-emitting device when said processing circuitry determines said high-side or low-side signal sufficiently varies from said base-line operating parameters.

6. The method of claim 1, further comprising illuminating a light-emitting device when said processing circuitry determines said high-side or low-side signal does not sufficiently vary from said base-line operating parameters.

7. The method of claim 1, wherein said determining base-line operating parameters include measuring said base-line operating parameters during installation of said compressor.