CA2176889A1 - Aspirator Water Circulation Apparatus - Google Patents

Aspirator Water Circulation Apparatus

Info

Publication number
CA2176889A1
CA2176889A1 CA 2176889 CA2176889A CA2176889A1 CA 2176889 A1 CA2176889 A1 CA 2176889A1 CA 2176889 CA2176889 CA 2176889 CA 2176889 A CA2176889 A CA 2176889A CA 2176889 A1 CA2176889 A1 CA 2176889A1
Authority
CA
Canada
Prior art keywords
water
heater
unit
building
circulation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2176889
Other languages
French (fr)
Other versions
CA2176889C (en
Inventor
Raymond G. Ziehm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA 2176889 priority Critical patent/CA2176889C/en
Publication of CA2176889A1 publication Critical patent/CA2176889A1/en
Application granted granted Critical
Publication of CA2176889C publication Critical patent/CA2176889C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0078—Recirculation systems

Abstract

A water circulation apparatus to provide instant hot water to faucets remote from the heater in residential and small commercial buildings when water is periodically used in the building. The apparatus comprises a body containing an aspirator and a check valve, and provisions for installation in the water supply line to the heater and cold water faucets.
It uses a small water return line from a tee installed in the hot water pipe near the remote faucet, to a connector on the water circulation unit, thereby establishing a circulation loop from the water heater, through the hot water pipe, the tee and return line, and through the water circulation unit back to the heater. The aspirator is a tapered bore in the body with a concentric nozzle positioned in the large end, and a low pressure tap located in the vicinity of the nozzle outlet. The check valve uses a neutrally buoyant poppet to minimize friction.
The unit is responsive to the user and is self regulating in that it causes water to flow in the circulation loop only when water is being used in the building. Water is conserved since there is no need to run water to waste awaiting hot water from the heater to reach the remote faucet. When the building is unoccupied, the unit is dormant, thus conserving heat that would be lost if the pipes were kept hot at all times. The unit needs no gas or electrical power, and operates with only one moving part.
CA 2176889 1996-05-17 1996-05-17 Aspirator water circulation apparatus Expired - Fee Related CA2176889C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2176889 CA2176889C (en) 1996-05-17 1996-05-17 Aspirator water circulation apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2176889 CA2176889C (en) 1996-05-17 1996-05-17 Aspirator water circulation apparatus

Publications (2)

Publication Number Publication Date
CA2176889A1 true CA2176889A1 (en) 1997-11-18
CA2176889C CA2176889C (en) 2001-02-20

Family

ID=4158227

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2176889 Expired - Fee Related CA2176889C (en) 1996-05-17 1996-05-17 Aspirator water circulation apparatus

Country Status (1)

Country Link
CA (1) CA2176889C (en)

Also Published As

Publication number Publication date
CA2176889C (en) 2001-02-20

Similar Documents

Publication Publication Date Title
US5331996A (en) Dual mode hot water circulation apparatus
US5339859A (en) Water conservation system
US4936289A (en) Usage responsive hot water recirculation system
US5009572A (en) Water conservation device
US4606325A (en) Multi-controlled water conservation system for hot water lines with low pressure utilization disable
US5518022A (en) Aspirator water circulation apparatus
CA3030267C (en) Fluid distribution system
US4917142A (en) Secondary circulation unit
US20080265046A1 (en) Tankless water heater hot water return system
US4924536A (en) System of conserving water in a building
IL126642A0 (en) Apparatus for recovering and saving chilled water in hot water lines having adjustable thermostatic control
CA2252162A1 (en) Integral water circulation apparatus
US8505498B2 (en) Commercial hot water control system
US20050205680A1 (en) Water Saver
US7077155B2 (en) Hot water recirculating system
US6688855B2 (en) Apparatus for increasing water pressure
CA2176889A1 (en) Aspirator Water Circulation Apparatus
US6164307A (en) Non-circulating, rapid, hot tap water apparatus and method
US20130327410A1 (en) Commercial Hot Water Control Systems
JPH0230652Y2 (en)
CN111457150A (en) Pipeline energy-saving joint and energy-saving water supply system
RU2031316C1 (en) Automated thermal station
CN212178028U (en) Pipeline energy-saving joint and energy-saving water supply system
EP0809079A1 (en) Aspirator water circulation apparatus
GB2191245A (en) Water powered shower booster pump

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed