# US 2024/0200827 A1 · Heating system

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- Number: US 2024/0200827 A1
- Document ID: US20240200827A1
- Status: Published application
- Kind: A1
- Application number: 18/081,655
- Filed: 2022-12-14
- Published: 2024-06-20
- Earliest claimed: 2022-12-14
- Assignees: Intellihot, Inc.
- Applicants: Intellihot, Inc.
- Inventors: Sridhar Deivasigamani; Sivaprasad Akasam
- Web page: https://patentgrep.com/patent/US20240200827A1

## CPC

- F24H 4/02: Water heaters
- F24D 3/02: with forced circulation, e.g. by pumps
- F24D 3/18: using heat pumps
- F24D 13/04: using electric heating of heat-transfer fluid in separate units of the system
- F24D 17/02: using heat pumps
- F24D 19/083: {Venting arrangements}
- F24H 1/101: {using electric energy supply}
- F24H 9/2028: {Continuous-flow heaters}
- F24H 9/12: Arrangements for connecting heaters to circulation pipes
- F24H: FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL (steam generation F22)
- F24D: DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR (using steam or condensate extracted or exhausted from steam engine plants for heating purposes F01K17/02)

## Abstract

A heating system including a trunk line including a first half and a second half; an inlet fluid conductor and an outlet fluid conductor, wherein the inlet fluid conductor connected to an inlet end of the trunk line and the outlet fluid conductor connected to an outlet end of the trunk line; at least one heating subsystem, each of the at least one heating subsystem including a fluid path for heating a working fluid disposed therein, a first end of the fluid path connected to the first half and a second end of the fluid path connected to the second half; a primary pump interposed in the inlet fluid conductor, the pump configured to push the working fluid through the at least one heating subsystem and the trunk line; a bleed valve disposed at a downstream end of the first half.

## Claims

### Claim 1

A heating system comprising:
(a) a trunk line comprising a first half and a second half;
(b) an inlet fluid conductor and an outlet fluid conductor, wherein said inlet fluid conductor is configured to be connected to an inlet end of said trunk line and said outlet fluid conductor is configured to be connected to an outlet end of said trunk line;
(c) at least one heating subsystem, each said at least one heating subsystem comprising a fluid path for heating a working fluid disposed therein, a first end of said fluid path is configured to be connected to said first half and a second end of said fluid path is configured to be connected to said second half;
(d) a primary pump interposed in said inlet fluid conductor, said pump configured to push the working fluid through said at least one heating subsystem and said trunk line;
(e) a bleed valve disposed at a downstream end of said first half, wherein said bleed valve is disposed at a level higher than said at least one heating subsystem and said pump; and
(f) a secondary valve disposed downstream from said bleed valve on said trunk line,
wherein said secondary valve is configured to be closed, said pump is configured to draw the working fluid through said inlet fluid conductor to fill the fluid path and said first half and urge air through the bleed valve before said secondary valve is opened to allow the working fluid to fill said second half and exit through said outlet fluid conductor.

### Claim 2 (depends on 1)

The heating system of claim 1, further comprising a secondary pump disposed on said fluid path.

### Claim 3 (depends on 1)

The heating system of claim 1, wherein the working fluid is glycol.

### Claim 4 (depends on 1)

The heating system of claim 1, wherein said at least one heating subsystem is a heat pump.

### Claim 5 (depends on 1)

The heating system of claim 1, wherein said secondary valve is a motorized valve.