US 1031143 A
Description (OCR text may contain errors)
o. H. MUELLER. HYDRAULIC AIR COMPRESSOR 0B PUMP.
IffLIOATION FILED AUG.`14, 1909.
Patented Ju1y2, 1912.
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OTTO H. MUELLER, OF CAMBERWELL, ENGLAND, ASSIGNOR TO HENRY R.
WORTHINGTONQ A CORPORATION OI NEW JERSEY.
HYDRAULIC AIR COMPRESSOR OR PUMP.
Specification of Letters Patent. l
Patented July 2, i912.
lApplication filed August 14, 1909. Serial No. 512,776.
To all whom it may concern:
Be it'known that I, O'r'ro ll. Mountain, a subject of 'the German lhnpcror, residing at Ca'mberwell, count-y oit Kent, Englaiuil, have invented certain new and useful Improvements in Hydraulic Air Compressors or Pumps, fully des'crilled and represented in the following specification and the accompanying drawings, forming a part of the same.
This invention relates to a compressor or pump of that type in which a liquid is used for entraining and compressing or condensing the gaseous fluid, the especial object of the invention being to provide an improved apparatus of this class adapted especially to be used as an air compressor or vacuum pump.
In accordance With the present invention, the liquid enters the apparatus in a water jet of annular section, which may be produced by any suitable pump or other liquid supply. This annular water jet is split up liquid jets from the wheel.
Iover Aand over again, frality ofthe compressors or by a Wheel into a plurality of rotating jets, the Wheel passages being arranged approxi mately parallel With the axis of the wheel, so that the liquid enters at one end ot the Wheel. or cylinder and is delivered at the opposite end. The rotating jets from the wheel are received in a cylindrical or annularnozzle and the air or other gaseous fluid to be compressed is admitted at the inlet end of the nozzle passage, so as to be carried through the nozzle and compressed by the The wheel is preferably driven by the pressure liquid, be ing provided with suitable vanos which secure this result and form the liquid passages.`
" =The ctnnpressing nozzle may deliver into the liquid is further decreased and the pres sure of the air increased, and which may deliver into a barometric stand pipe or other wise, or the compressing nozzle may be of such length and design as to complete the desired compression.
The Water may be cooled so as to be used pumps may be used 1n series, so that each does only part of the compressing.
it' desired,` and a plu,-v
'lhc invention may be applied, also, to condensing vapor.
ln the accompanying drawings forming a part ol this specification, there is shown tor the purpose otl illustration an apparatus embodying the invention in a simple and preferred form, especially adapted for use as an air compressor or vacuum pump, and this apparatus will now he described in detail and the invention then pointed out in the claims.
In the drawings :-Figure l is a vertical central section of the apparatus. Figs. 2, 3, 4 and 5 are cross sections on, respectively, the lines 2, 3, 4 and 5 of Fig. l. G is a diagram showing the 'wheel passages and nozzle developed into a plane.
Referring to the drawings, A is the inlet chamber connected with the pressure liquid `supply through inlet 10, and provided with a central circular core 11 forming with the shoulder l2 on the inlet chamber an annular jet opening a. Below the annular jet opening L and core 11' is mounted the wheel B having vanes or partitions 13, two being shown in the present case, between which are `lormed the water passages the upper ends ol which at or near the inlet end ot' the wheel B are in line with the 'jet hpening a. The passages Z are not open radially to the periphery of the wheel but are closed by plate or cover 1 outside .the passages.
'lhe vanos 13 preferably have one ot their sides inclined to the direcliim ot the jet, so as to rotate the wheel by the pressure liquid. The vanos 12S thus widen toward the outlet end oi the wheel and this construction is preferable as it permits the .vanos 13 and cover 1 to be cut away near the wheel outlet so as to form air openings 3 bv which thc'air is admitted in line with the outlet: end of the wheel and between the liquid passages b. With this construction, the passages l gradually contract in width toward the outletoi" the wheel, but they are pretorabl y increaseil correspolidingly in radial depth as shown. so that the'combinl-d .the Wheel is ihr; rune. 'n, Imaz-lr? miv l nu. .las for the wheel openiuf.r at llu inlet und ox. the l when Whil in la@ i. ol the wheel is i pfawieiablysecured oy the pressure liquid, as
area of thelpassag'ee-i 7iy at the mitici en d oi"` lchamber ot' nozzle l).
above described, the wheel may be rotatedl the in'flining of one side of the vanes i3 to.
the direction of the is not necessary, but the venes will nevertheless preferably bc formed as shown, the air openings 2l thus being provided for and the construction being simple, compact, and especially ellieient. y
IThe wheel B may be mounted in any suitable manner, but is shown as, carried by the shaft LL extending through the hub 11 and supported in collar bearing l5 at the top-ot' chamber A, being guided in bushes 2 at the top and bott-om of the core ll. The shatt 14e is shown as extending above rap 8 and provided with a belt pulley Sl driven by belt l() by which the wheel may be driven inde pendently of or aided by the pressureliquid.
The wheel l5 is inrlosed within-san air chamber C to which air is admitted so as to surround the outlet end ot' the wheel through inlet 1G, which is connected with the con denser or other chamber to be evacuated or vith the supply of air t'or compressing.
Below the air; chamber and `wheel il is a nozzle D in which the air is carried lorward and compressed by the water jets from the wheel B. This nozzle is shown as having a flange mounted on the bottom of the air ohanlberC. v The nozzle D is shown as delivering into an expanding single chamber nozzle ll, in which the velocity of the liquid is decreased and the pressure ot' t'he nir increased, butl it will be understood that the nozzle l) may be of such length and t'orm as to deliver without the divcrging nozzle, or may deliver to a barometrie stand pipe, or otherwise, as desired.
The operation ol the apparatus will be understood from the above and briel' description.
The water entering the wheel Vil from the annular jet opening a passes through the wheel at a high velocity and axially-ot' the wheel. ll`l|e vanos lil being set at an angle to the jet, the wheel is rotated by the water, but as the wheel otlcl's practically no resistance to the water, thev direetion ol' the water is not ehanged substantially, butI the water is split up into a plurality oll rotating jets, two jets in the present case. 'l`l1e liquid jets from the wheel l pass into the nozzle D past` whieh they rotate, andthe wheel jets are thus combined in the single The air admitted through inlet it? to chamber (l and surrounding the discharge end ot' the wheel li above the nozzle D is carried into the upper end of the nozzle D by the water, so that the water and air cuter alternately, the air beingl thus entrained' by the water and pushed downward, so as to be compressed meines 'forming an annular passage. The oontinuons cylindrical or annular passage in which the wheel jets are combined into a single bodyl Secures an increased eliieieney compared with nozzles divided into a series ot passages. Y l
"Yhile the apiniratus is preferably' arranged vertically. and the rotation ot' the .wheel is preferably secured` by the pressure liquid, it will be understood that the broader features of the invention are not thusI lunited, but that the apparatus may be arranged :l'or the liow ot' liquid otherwise than vertically, and that other modifications may be made in the apparatus shown within the invention delincd by the claims.
rlhe terni air herein is intended to'inelude gaseous or aeril'orm fluids generally.
l. The combination with a` liquid supply and an annular jet inlet, of a wheel provided with a plurality ol passages rotating in line with the jet inlet and extending through the wheel longitudinally of the wheel axis whereby tl `annular jet is divided into a plurality ot rotating jets, a nozzle in line with the wheel passages in which the wheel jets are combined, and an air inlett'or admitting air to the inlety end of the nozzle, A
2. The combination with a, liquid supply and a verl ical annular jety inlet, ot a wheel rotating on a vertical axis and provided with a plurality ot' vertical passages rotating in line with the Iiet opening by which the annular jety is divided into a plurality olY rotating jets, a verticalv stationary nozzle in line with the wheel passages in which the wheel jets are eombined.l and an air inlet for admitting air to the inlety end olf the nozzle.
Il. lhe combination with a liquid supply and an annular jet inlet, ot' a wheel having its axis within and eoneentrie with thel jet' and provided with a series ot' vanes inclined tosecurethe rotation ol the wheel by the water and lorming passages by which the jet is divided into a plurality of rotating jets, a stationary nozzle in line with the wheel passagcsin which the wheel jets are coinbined, and an air inlet for admitting air to the inletI end ot' the nozzle.
-l. ln an apparatus of the class described, a wheel provided with a plurality of liquid passages extending tl'n'ough the wheel longitudinally of the wheel axis, in combination'with asin 1e compressing (passage in linewith the w eel passages an air inlets for yadmitting air 'to the compressing pas sage. for compression by the liquid from the )wheel passages.
5. In an ap aratus of the classdescribed aI wheel provi ed with a plurality of li ui 'passagesA extending' through the wheel onthe wheel ,axis in combinal1Qation'withjasingle cylindrical compressin passa e iiii line with the wheel assages an 'air' in ets for-admitting air toft e com ressfor compresslon by the iquidl ing Passage from the wheel passages. y
6. vThe combination with annular liquid inlet ajof wheel B havin vanes 13 extending longitudinally of the w eel axis and forming liquid passages b, said` vanes increasing 1n Q I7. The combinatmnwith annular liuid .inlet a, longitudinally of the wheel axls and form- 25 width `toward the outlet end of the wheel, of
a compressing'nozzle in line with the liquid 20 passages b, vand an air inlet for admitting air to the inlet end of the nozzle.
of wheel B having vanos exten ing witnesses,
OTTO H. MUELLER. Witnesses:
F. L. RAND,
G. P. PHILLIPPs.