Energy-efficient heat pump water heater

Details Energy-efficient heat pump water heater Energy-efficient heat pump water heater

2007-06-05

2007-06-05

Jiang, Chen Wen (Department: 3744)

Refrigeration

Automatic control

Of external fluid or means

C062S183000, C062S238700

Reexamination Certificate

active

10760668

ABSTRACT:
An energy-efficient heat pump water heating system determines whether to energize a heat pump by interpreting readings from one or temperature sensors based on two thresholds. The heat pump is energized if the detected temperature falls below a first threshold and de-energized when the detected temperature rises above a second threshold. The thresholds may correspond to outputs of two or more sensors. Using multiple temperature thresholds improves the temperature sensing capabilities of the system, thereby improving energy efficiency by matching heat pump operation with hot water demand more closely than previously known systems.

REFERENCES:
patent: 4492091 (1985-01-01), Whitwell et al.
patent: 5367602 (1994-11-01), Stewart
patent: 6212894 (2001-04-01), Brown et al.
patent: 6370896 (2002-04-01), Sakakibara et al.
patent: 6494051 (2002-12-01), Sakakibara et al.
patent: 0092864 (1983-11-01), None
patent: 62010535 (1987-01-01), None
patent: 2004159 (1990-01-01), None
patent: 2001255005 (2001-09-01), None
patent: 2002147846 (2002-05-01), None
patent: 2002243276 (2002-08-01), None
patent: 2002295901 (2002-10-01), None
patent: 2003372326 (2002-12-01), None
patent: 2003050051 (2003-02-01), None
patent: 2003130459 (2003-05-01), None
patent: 2003148809 (2003-05-01), None
patent: WO03042606 (2003-05-01), None

Affiliated with

Also associated with

Rating

Energy-efficient heat pump water heater does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Energy-efficient heat pump water heater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy-efficient heat pump water heater will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3873192