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WO1997037087A1 - Dispositif de distribution d'eau de douche a pompe a air de jet de liquide - Google Patents

Dispositif de distribution d'eau de douche a pompe a air de jet de liquide Download PDF

Info

Publication number
WO1997037087A1
WO1997037087A1 PCT/US1997/005051 US9705051W WO9737087A1 WO 1997037087 A1 WO1997037087 A1 WO 1997037087A1 US 9705051 W US9705051 W US 9705051W WO 9737087 A1 WO9737087 A1 WO 9737087A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
throat
nozzle
shower
housing
Prior art date
Application number
PCT/US1997/005051
Other languages
English (en)
Inventor
Melvyn L. Henkin
Jordan M. Laby
Original Assignee
Henkin Melvyn Lane
Laby Jordan M
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 Henkin Melvyn Lane, Laby Jordan M filed Critical Henkin Melvyn Lane
Priority to AU25928/97A priority Critical patent/AU2592897A/en
Publication of WO1997037087A1 publication Critical patent/WO1997037087A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • E03C1/084—Jet regulators with aerating means
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/08—Jet regulators or jet guides, e.g. anti-splash devices
    • E03C2001/082—Outlets connected by an universal joint

Definitions

  • the present invention relates generally to low flow shower devices (e.g.,
  • shower heads and the like for delivering a high momentum shower water stream
  • Patent 5, 1 1 1 ,994 shows a mixing
  • an aspirating venturi is limited in its ability to introduce a large amount of air into the nozzle water flow when working
  • 1 54,355 shows a mixing chamber including a relatively short tube (i.e., having a length to diameter
  • Liquid jet gas (LJG) pumps have been used in various industrial applications such as for chlorinating water supplies, removing the gas phase from condensers,
  • the present invention is directed to a shower water delivery device configured for improved operation at a low water inflow rate (e.g., 2.5 g.p.m.) to
  • Apparatus in accordance with the invention is configured to create an
  • the invention is directed to a shower device utilizing a
  • liquid jet gas (LJG) pump operating at a low water inflow rate for pumping large
  • shower device embodiments in accordance with the invention include, inter
  • Such embodiments can variously include mechanisms for selectively discharging a pulsating shower
  • the massage outflow can be discharged from an orifice either fixedly mounted or mounted for movement along a travel path.
  • adjustment controls can be incorporated for adjusting characteristics of such shower, pulsating, and massage outflows to, for example, vary intensity.
  • Apparatus in accordance with the invention includes a (1 ) housing
  • g.p.m. is pumped by a water inflow to the LJG pump driving nozzle of 2.5 g.p.m. or less achievable against a cavity back pressure in excess of 10 p.s.i..
  • An LJG pump in accordance with a preferred embodiment of the invention is characterized by:
  • a driving nozzle (preferably a square edge or sharp edge nonconverging
  • nozzle formed by a thin plate orifice) for discharging a water jet of cross section
  • the driving nozzle and throat are oriented in axial alignment spaced by the suction chamber therebetween.
  • An air inlet communicates with the suction
  • a flow regulator either inline or bypass
  • Figures 1 a, 1 b, 1 c, 1 d, 1 e, 1 f, 1 g depict various views of a first
  • Figure 1 a is a vertical cross-section
  • Figure 1 b is a horizontal cross-section taken substantially
  • Figure 1 c is a horizontal cross-section taken substantially
  • Figure 1 d is a bottom plan view of the shower head of Figure
  • Figure 1 e is an exploded isometric view of the shower head of Figure 1 a;
  • Figure 1 f illustrates a square edge nozzle
  • Figure 1 g illustrates a sharp edge nozzle
  • Figures 2a, 2b, 2c, 2d depict various views of a second embodiment of the invention comprising a shower head incorporating a bypass flow regulator and wherein:
  • Figure 2a is a vertical cross-section
  • Figure 2b is a horizontal cross-section taken substantially along the plane 2b-2b of Figure 2a and showing four jet pump nozzles;
  • Figure 2c is a horizontal cross-section taken substantially
  • Figure 2d is a bottom plan view of the shower head of Figure
  • Figures 3a, 3b, 3c depict a third embodiment comprising a shower head
  • Figure 3a is a vertical cross-section
  • Figure 3b is a horizontal cross-section taken substantially
  • Figure 3c is a vertical cross-section identical to Figure 3a but
  • Figure 3d is an exploded isometric view of the shower head
  • Figure 4 comprises a sectional view depicting a hand held shower
  • Figure 5 depicts a fifth embodiment comprising a shower arm.
  • the shower head 10 of Figures 1 a-1 g is comprised of a housing 1 2 including
  • the member 14 includes a cylindrical wall 1 6
  • a cylindrical nipple 20 extends from the first end wall 1 8 in a direction opposite to the cylindrical wall 1 6. The nipple 20 is
  • the nipple 20 further defines a central bore 24 having an entrance portion 26, a shoulder 28, and a reduced bore portion therebelow 30.
  • Radially oriented air passages 32 extend through the nipple 20 and communicate with the bore portion 30.
  • nonconverging nozzle 45 The thin plate 40 is oriented to respectively align the nozzles 45 with tubular throat passages 46 formed in boss 48 extending axially
  • Each throat passage 46 extends between a slightly flared entrance 50 and an exit 52 which opens into a cavity 54 surrounded by the
  • cylindrical wall 1 6 The free end of cylindrical wall 1 6 is reduced to define a shoulder 56.
  • the cavity 54 is enclosed by a second end wall 58 comprised of a plate 60 having a reduced diameter portion 62 and enlarged diameter portion 64.
  • shower opening slits 66 extend radially inwardly from the circumferential
  • a compressible washer 68 is received between shoulder 56 of wall 1 6 and plate portion 64 when the plate 60 is mounted across
  • the housing 1 2 is intended for mounting on a rigid tubular conduit, e.g. , a conventional externally threaded shower arm 71 which supplies pressurized water,
  • 1 a and 1 e show a plurality of mounting components including a coupling ball 72
  • the collar 74 defines an internal central bore 76 communicating with a central passageway 78
  • a conventional pressure regulator 92 is mounted within bore 76 of ball collar 74.
  • the regulator 92 is comprised of an elastomeric regulator element 94 having
  • the regulator element 94 is
  • the of the regulator 92 is to limit water flow therethrough to a preferred flow rate, e.g.,
  • each of the nozzles 45 formed in the thin plate 41 together with the downstream throat 46 aligned therewith, and an air inlet defined by air passageway 32, forms a true liquid jet gas (LJG) pump. More particularly, water flow from the ball passageway 78 will
  • chamber 104 pulls in air through air passageway 32.
  • a properly designed and dimensioned LJG pump enables large amounts of air to be pumped through the tubular throat to increase the pressure in the discharge cavity 54 without back flooding via the air passageways 32.
  • long throats 46 are
  • the throat length L ⁇ plus suction chamber length L s is equal to at least 5 times the throat diameter, and is preferably greater than 10 times. Since the throat need not be circular in cross section, the throat length (L ⁇ ) plus suction chamber length (L s ) can be more appropriately expressed as being greater than
  • cavity 54 is attributable in part to the dimensions of shower openings 66; i.e. the smaller the shower openings, the greater the resulting pressure build up in the
  • showerhead 1 10 includes a ball 1 1 2 and coupling collar 1 14, analogous to the
  • Each aperture 1 22 is axially aligned with a different throat passage 1 26 having an entrance 1 28 and an exit 1 30.
  • a suction chamber 1 32 is formed between each nozzle 1 22 and its
  • An air inlet passageway 1 36 extends to the suction
  • the throat exit 1 30 opens into a discharge cavity 140 defined by housing portion 142 and removably mounted end wall 144. Small shower openings 1 46
  • the regulator 1 52 communicates with a downstream
  • regulator 1 52 is to assure a substantially constant water flow rate, i.e. , 2.5 g.p.m. into the cavity 140 over a range of supply pressure Thus, at the low end of the
  • the flow regulator 1 52 will open to supply water into the cavity 140 in parallel with the water flow through the pump throats 1 26 At the high end of the pressure range, e.g. 80 p.s.i., the regulator 1 52 will close, thus
  • bypass flow regulator 1 52 can be configured in various manners. As depicted, it includes a spring 1 60 which urges a valve element 1 62 to its uppermost fully open position ( Figure 2a) in the absence of applied pressure. As the water supply
  • full sealing is set to occur at about 80 p.s.i. so that at this pressure
  • the supply water inflow passes exclusively through the throats 1 26.
  • the inline regulator 92 keeps the dimensions of the nozzle apertures 41 and the water supply pressure; i.e., flow rate increases as a function of supply pressure.
  • the inline regulator 92 keeps the
  • bypass regulator 92 to maintain the total flow into the discharge cavity
  • third embodiment 300 of the invention comprising a shower head capable of
  • the embodiment 300 is
  • the mounting subassembly 304 is intended for mounting on a conventional
  • the subassembly 304 includes a coupling ball 306 having an internally threaded collar
  • the collar 308 formed integral therewith.
  • the collar 308 defines an internal central bore 310
  • the ball 306 extends through an opening 31 4 formed in a swivel member 31 6 mounted to swivel on the surface of ball 306.
  • An annular flange 31 8 is formed integral with
  • An air inlet aperture 323 is formed in flange
  • a retainer 326 having an externally threaded nipple 328 is threaded into the
  • the retainer 326 defines a central bore receiving an elastomeric washer
  • the retainer 326 also seals against the outer surface of ball 306.
  • the retainer 326 also seals against the outer surface of ball 306.
  • annular radially extending flange 340 having an axial skirt 342
  • the mounting subassembly 304 is primarily comprised of the elements
  • mounting assembly 304 includes a selector valve element
  • the circular disk 352 includes an aperture 360 extending therethrough. Additionally, note that open annular areas 362A, 362B, 362C, and
  • 362D are respectively formed between the radially extending tabs 354.
  • the housing 302 is comprised of an assembly of parts supported on the mounting subassembly 304. More particularly, the housing 302 is comprised of
  • An O ring 402 is supported between the surfaces of the retainer
  • the mounting ring 400 is externally threaded at 406
  • the housing body 410 defines an internal upper recess which accommodates the
  • the floor of the recess is defined by an annular upper surface 41 2 which supports a thin nozzle plate 414 beneath an 0
  • the thin plate 414 is keyed to the inner housing body 410 and rotates
  • selector valve aperture 360 is aligned with orifice 41 8 in thin plate 414.
  • the chamber 420 has an exit orifice 422 through which the water can exit in a direction having a tangential component for rotating a pulsator
  • the pulsator wheel 424 intermittently interrupts the flow path from
  • the embodiment 300 is also operable in a continuous mode to discharge a shower stream similar to that
  • the ball central bore 31 2 is discharged through radially oriented shower opening slits 440. More particularly, in addition to the entrance 41 8, the thin plate 414 defines four nozzle orifices 444A, 444B, 444C, 444D.
  • the nozzle orifices 444 are
  • the housing body 410 is rotated to move the thin plate 414 relative to the selector
  • valve element 350, nozzle orifices 444 will align with open annular areas 362
  • outer housing shell 446 which is keyed to body 41 0 at
  • Each nozzle orifice 444 is aligned with an elongate throat 450 extending
  • a suction chamber 452 is formed between each
  • the elongate throats 450 exit at 459 into a discharge cavity 460 which
  • the dimensions of the shower opening slits 440 are determined in part by the axial position of an annular ring seal 464 carried by the housing outer shell 446.
  • shower opening slits 440 are defined by an oblique wall 470 such that the clearance between the wall 470 and the ring seal 464 varies as the ring
  • the ring seal 464 is moved axially.
  • the ring seal 464 can be moved axially by rotating the
  • selector valve element 352 relative to selector valve element 352 to enable a user to select the
  • the shower discharge stream can vary between a larger drop size of slower velocity and a smaller drop size of higher velocity.
  • throats 450 are selected to form a liquid jet gas pump, as has been described in
  • the nozzle orifices 444 are formed to define square edge or sharp edge nonconverging nozzles, as has been
  • throats are selected such that the throat length (L ⁇ ) plus the suction chamber length
  • shower heads structurally configured for mounting on a conventional, substantially
  • a flexible water supply hose for use as a hand held shower device.
  • the invention configured as a simplified hand held shower device 500. As shown,
  • the device 500 comprises an elongate housing 502 comprised of a forward section
  • An O ring 51 2 is preferably included at the interface 51 3 between the sections 506 and 508 to prevent leakage.
  • Forward section 506 defines an interior passage 51 6 leading to a reduced
  • Section 506 further includes an internally threaded
  • discharge head 524 includes a front face 526
  • head nipple 522 defines an internal cavity 530 just upstream from the shower
  • the elongate rear section 508 includes an end wall 540 remote from the
  • the rear wall 540 defines an
  • tubular member 544 defines a central passage 547 including a slightly flared
  • the embodiment 500 further includes a mounting nipple 560 extending
  • the nipple 560 defines a central bore 564 which
  • a thin nozzle plate 570 is mounted downstream of the flow regulator 568
  • the thin plate 570 includes a square edge or sharp edge nonconverging nozzle orifice 574 aligned
  • a sealing O-ring 576 is preferably mounted between
  • a suction chamber 580 is formed
  • At least one radially extending air inlet passage 582 communicates with the suction chamber 580.
  • the nozzle orifice 574, the suction chamber 580, and the throat 550 are dimensioned such that (L ⁇ + L s ) is greater than V32(A T ) where L ⁇ is the axial length of the constant cross section
  • L s is the axial length of the suction chamber 580
  • a ⁇ is the cross
  • throat 550 is chosen to be smaller than that of the throat 550 so that the area (A j ) of the water jet discharged from the nozzle 574 is smaller than the cross section area A ⁇ of throat 550.
  • the high pressure created in cavity 51 6 functions to propel water droplets out through shower openings 528 as the compressed air within the air/water mixture escapes.
  • the large amount of highly compressed air produces
  • Figure 5 shows an elongate housing 600
  • the housing 600 is comprised of a rigid
  • cylindrical member 602 having a supply end 604 and a discharge end 606.
  • supply end 604 is externally threaded at 608 for coupling to a conventional
  • the discharge end 606 is provided with external threads 61 2 (either integral with member 602 or on a fitting 614 secured to
  • a chamber 61 6 opens into the member 602 from the supply end 604.
  • filter screen 61 8 and a nozzle 620 are accommodated in the chamber 61 6.
  • the elongation of housing 600 enables it to accommodate a nozzle 620 having a
  • a downstream nozzle exit orifice 626 as depicted in Figure 5.
  • the exit orifice 626 opens into the chamber 61 6 just upstream from the entrance 628 to a throat section 630 depicted as including a constant cross section bore 631 .
  • the throat depicted as including a constant cross section bore 631 .
  • section 630 defines a downstream outlet 632 which discharges into passageway
  • section entrance 628 produces a suction which, as aforedescribed, functions to
  • suction chamber axial length L s as previously described.
  • the axial distance of the throat between the entrance 628 and the outlet 632 defines the throat length L ⁇ .
  • the cross section area of throat 630 is defined by A ⁇ and the cross section area
  • FIG. 5 is dimensioned such that (L ⁇ + L s ) is greater thanV32(A T ) .

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Nozzles (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)

Abstract

ispositif (10, 110, 300, 500, 600) de distribution d'eau de douche configuré pour permettre un meilleur fonctionnement à un faible débit d'entrée d'eau pour produire un écoulement d'air/eau à moment élevé, destiné à produire un effet de douche amélioré. Le dispositif est configuré pour créer une pression accrue dans une cavité de décharge (54, 140, 460, 530) afin de propulser un flux de douche d'air/eau vers l'extérieur, à une vitesse élevée à travers des petits orifices de douche (66, 146, 440, 528) dans la cavité. Le dispositif utilise une pompe à air à jet de liquide destinée à pomper des grandes quantités d'air aspiré par une ou plusieurs adminissions d'air (32, 136, 323, 582, 640), jusqu'au dans la cavité de décharge (54, 140, 460, 530).
PCT/US1997/005051 1996-03-29 1997-03-27 Dispositif de distribution d'eau de douche a pompe a air de jet de liquide WO1997037087A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25928/97A AU2592897A (en) 1996-03-29 1997-03-27 Liquid jet gas pump shower water delivery device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1711896P 1996-03-29 1996-03-29
US60/017,118 1996-03-29

Publications (1)

Publication Number Publication Date
WO1997037087A1 true WO1997037087A1 (fr) 1997-10-09

Family

ID=21780829

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/005051 WO1997037087A1 (fr) 1996-03-29 1997-03-27 Dispositif de distribution d'eau de douche a pompe a air de jet de liquide

Country Status (2)

Country Link
AU (1) AU2592897A (fr)
WO (1) WO1997037087A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1091052A1 (fr) * 1999-10-07 2001-04-11 LUNDBERG & SON VVS-PRODUKTER AB Dispositif articulé pour alimentation d'air
CN102206946A (zh) * 2010-03-31 2011-10-05 Toto株式会社 吐水装置
CN112362557A (zh) * 2020-11-24 2021-02-12 孙淑华 一种工程监理用建筑外墙和窗边渗水测试装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346844A (en) * 1980-01-28 1982-08-31 Conservation Associates Incorporated Aerated pulsating shower head
US4573639A (en) * 1982-05-24 1986-03-04 Logue Murl F Shower head
US5111994A (en) * 1987-07-30 1992-05-12 Emhart Inc. Flow booster apparatus
WO1992011948A1 (fr) * 1991-01-08 1992-07-23 Lundberg & Son Vvs-Produkter Ab Dispositif pour pommes de douche
US5615836A (en) * 1993-11-11 1997-04-01 Graef; Jordt-Steffen Injector nozzle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346844A (en) * 1980-01-28 1982-08-31 Conservation Associates Incorporated Aerated pulsating shower head
US4573639A (en) * 1982-05-24 1986-03-04 Logue Murl F Shower head
US5111994A (en) * 1987-07-30 1992-05-12 Emhart Inc. Flow booster apparatus
WO1992011948A1 (fr) * 1991-01-08 1992-07-23 Lundberg & Son Vvs-Produkter Ab Dispositif pour pommes de douche
US5615836A (en) * 1993-11-11 1997-04-01 Graef; Jordt-Steffen Injector nozzle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1091052A1 (fr) * 1999-10-07 2001-04-11 LUNDBERG & SON VVS-PRODUKTER AB Dispositif articulé pour alimentation d'air
CN102206946A (zh) * 2010-03-31 2011-10-05 Toto株式会社 吐水装置
CN102206946B (zh) * 2010-03-31 2014-09-17 Toto株式会社 吐水装置
CN112362557A (zh) * 2020-11-24 2021-02-12 孙淑华 一种工程监理用建筑外墙和窗边渗水测试装置
CN112362557B (zh) * 2020-11-24 2023-10-03 东营市全过程工程咨询有限公司 一种工程监理用建筑外墙和窗边渗水测试装置

Also Published As

Publication number Publication date
AU2592897A (en) 1997-10-22

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