US1054573A - Hydraulic pump. - Google Patents

Description

L. A. LAURSEN.

HYDRAULIC PUMP. v APPLICATION FILED JULY'lO, 1912.

Patented Feb. 25, 1913.

3 SHEETS-SHEET 1.

J III Ill ,-----1 l l l III III lll II] V III In gum.

[1. 5 jaw/@610 w vwwoeo L. A. LAURSEN. HYDRAULIGI PUMP.

APPLICATION FILED JULY 10, 1912.

Patented Feb. 25, 1913.

3 SHEETS-SHEET 24 0' [lame/(12W luifaumem "I 1 v I Gflozuur on Iran STATES rA ENT OFFICE.

LAURITS A. LAURSEN OF EAU CLAIRE, WISCONSIN.

HYDRAULIC Polar.

To all-whom-jtmag, concern:

Be it known that I, LAURI'IS A. LAURSEN, a citizen of the United States, residing at "Eau Claire, in the county of Eau Claire and State .of Wisconsin, have invented certain new and useful Improvements 11]. Hydraulic Pumps, of which the following-is a speci} The present invention relates to a hydraulic pump wherein novel automatic means are employed to alternately conduct water under pressure from a race pipe to opposite sides of a piston, which piston op: erates a plunger, which in turn suitably acts'upon a portion of the water from the race pipe so that the same may be forced to an elevation above the source of water.-

An important object. of this invention is to provide means of the above mentioned character, which are automatic and con-v tinuous in'operation'and not liable to disarrangement'of the parts.

Other objects and advantages of this in vention will be apparent during the course of the following description.

For a full understanding of the presentinvention, reference isfto he had to the following description and. the accompanying drawings, in which, a

Figure 1 is a side view of. the waste side of the pump; Fig. 2 is a side view ofthe intake side of the same; Fig. 3 is a bottom plan view, looking fromthe line 3-3 of Fig. 1; Fig.4 is a central vertical longitudipal section through the hydraulic pump; Fig. 5 is a vertical sectional view, taken on the line 5'5 of Fig. 4; Fig. (l'i's a vertical sectional view, taken on the line 66 of Fig. 4; and F ig. 7 is a top plan view of thecasing containing the main valve structure.

Throughout the following detail descrip- .tion and on the several figures of the drawings, similar parts are referred to by like reference characters.

Referring particularly to the drai'vings, the numeral 1 designates a horizontal bo-dy portion orcasting, Which is divided into working and pumping chambers 2 and 3,

.respectively. Rigidly' mounted in the upper side of the Working chamber 2, is a main valve casing 4, upon which is rigidly Specification'of Letters Patent. v Patented Feb 25 191 Application file'd July 10, 1912. Serial No. 708.684.

mounted an auxiliary shown.

As shown in Fig, 2, nates an intake opening, discharging into the central portion of the main valve casing 4. i

A suitably inclined race pipe (not shown) discharges into the intake opening 6. An

11 disposed within the working chamber 2,

through the medium of openings 12 "and 13, respectively. The conduits 9 and 10 dis-. charge at their upper ends into end chambers H and 15 of the auxiliary valve casing 5, through openings 16 and 17, respectively.

Mounted to reciprocate within the cylinder 11 is a piston 18, which travels outwardly past both 'of the openings 12 and 13. Rigidly connected with piston 18 is a piston rodv 19, operating through an apertured boss formed upon a partition 20, in-

terposed between the chambers 2 and 3.-

Rigidly mounted in the pumping chamber 3 and ii -spaced relation thereto, is an internal pmnping cylinder 21, having both ends open, as shown. A plunger 22 operates within the cylinder. 21 and is connected with the piston rod 19. Surrounding the cylinder 21 is an intermediate cylindrical shell 23, forming an annular water space 24 in'freecommunication with the opcning8, before referred to. Uponits upper side the shell 23 is provided with dpenings24,adapted to be closedby upwardly openingcheck valves 25. The water -'discharging through the openings 24' passes into chamber 3 exteriorly ofshell 23,,and then passes through openings 26 which areadapt'edto be covered by upwardly'opening'check valves 27. The Water then passes into the pressure collecting tank 28 to bedischarged through pipe '29. It. is thus seen that when the plunger 22 is moved to the left a vacuum is created in the chamber 3 eXteriorly of shell 23,

valve casing 5, as

the numeral 6 desig- Exterior vertical whereby water will be drawn through penings 24 into chamber 3, which water is rying valve heads 41, 42, 43, and 44. The

valve heads 41 and 42 slide upon the seats 27 and 28, the valve head 43 alternately engagesseats 29 and 31, and valve head 44 ture is shifted to the right, so that valve head 43' engages seat 31. and valve head 44 alternately engages seats 30 and 32. It is thus seen that when the main valve strucengages seat 30, the water supplied through opening 6 will' pas's by way. of port- 37 to the right side of piston 18, to force the same to the left. When the main valve structure is shifted to the left so that valve head 43.

engages seat 29 and valve head engages seat 32, the water. willv pass by port 36 to the left side of piston 18 to shift the sameto the right. w

.. Formed wlt-hin the auxiliary valve casing 5 are end annular valveseats-45 and 46,1

formingthechambers- 14 and 15, previously referred to. Spaced annular valve seats 47 stem -58'. o f the auxiliary valve. structure' 48,. 49, and 50.-are.also formed within the.

casing 5 each being formed of-a web of material comprising the casing,,wliich valve seats-provide ports 51,- 52, 53,54, and 55,

as showneach port being enlarged laterally.- of the respective-seat to form an annular space aboutthe respective seat. .Theport; 55 is in free communication with the port 38. ,The ports 53 and 54 are infree. commu-.j nicati'on-with the ports33 and 32',Irespec-- The piston 18 operates the pump in the tively, by means-of the port 56-.

. Rigidly' mountedthrough which is mounted .a reciprocatory This stem carries spaced valve heads 59 60, 61,; and 62,. rig dly connected therewith.

:When-thevalve head 62 engages the valve.

seat 49, as shown in .Fig. 4,- it is obvious that-water will pass upwardly through port .38, into p0rt55, port 54,.port 56,"to-'port 32", to move the main valve structure to the right, as shown in Fig. 4. When .the auxil .iaryvalve structure is shifted to the right to. bring valve head. 62 in engagement with valve seat47, water will pass from port 55, .nto port 53, port 56, and to port 33 to. shift the main valve structure to the left.

' The annular valve seats 45 and 46are prothe'inne'r-ends of the" valve seat- s 45 and 46 are fixed heads. 57

vided with waste openings 63 and 64 at their inner ends, which discharge into waste conduits 65, leading into a shell 66, to be connected'with a waste pipe (not shown). It is tobe'noted that valve heads 59 and 60 only partially cover the waste openings. 63

and 64. -When the piston. 18 is moved to the right sufficiently to pass opening 12, some of the water passes through opening 12, conduit 9,; and into the end chamber 14, whereby the auxiliary -valve structure, in-- eluding valve-head 60, will'be shifted to the 'left'to occupy the. position shown in Fig. 4.- .When the piston 18 is moved to the left to occupy a position outwardly of theopening 13, water passes through opening 13, conduit 10, and into chamber 15. Water is also being fed throughconduit9 into cham- 4 her 16, but-since the waste opening is partly open, it is obvious that the pressure in chamber 15 will be the greater, whereby the I auxiliary valve-structure including the valve head 59 will be shifted to the right. 'Valve head 62 will then engage valve seat. 47

whereby the main valve structure will be shifted'to the left, as above'stated. Whenvthis takes place water passes through port.

36 to the left side of piston 18 to move the same to the right to occupy its position I shown in Fig. 4. The orts-32 and 33 have communicatlon wit-hex aust ports '67,'leading into the chambers 14 and 15, which ports" are entirely covered by the valve heads 59* and GO when they are, in-their outermost positions.

- In the operation offthe device, water is 1 supplied at suitable pressureto ,casing 4 through opening. 6. "The watercauses the pistontomove to the left. When the piston reaches-the end of this movement, the auxiliary valve structure will be shifted to the right, whereupon the main'valve structure will be shifted to the left, The'water will now. move the piston to the right: When the piston reaches the end of its travel to the right the operation is again repeated.

manner hereinbefore described.

As will be Se n'in Fig.3, the lower side of the casing which contains the auxiliary valve structure'is provided with port open-' chamber 72, which is disposed between the said casing and the casing which contains the main valve structure," the latter being particularly shownin Fig.7. The port 70,

communicates withrport 53, and the chamber 72. communicates with the port 73 formed in the upper portion of the casingjcontaining the main valve structure BI this 'm'ean's ings 70 and 71, the former opening into the last named port being formed in the upper water that is wasted from the central portherein adapted to travel substantially for 'the fail length of the cylinder, of a main leading laterally from each side of the hi the intake side of the main valve chamber.

means when the upper valve structure is chamber communicates by meansof a port pressure vehicle to and mm the cylinder, an

which is disposed between the said two casings. The chamber 75 communicateswith by which means the water exhausts through port 63, after said water has acted upon the piston (30, may pass through the ports 71 and 76 so as tojoin the intake water, said portion of the casing which contains the main valvestructure. In like manner the port 77 formed in the lower side of the casing which contains the auxiliary valve structure, communicates with port 54, and with the chamber 78, the latter being connected with port 32 by means of a port 79,- the latter being shown in Fig.7, by this forced to the right, water in port 54 will be forced through the ports just described and said water will act upon the left-hand end of the main valve structure to move it toward the right. -The water which has passed into'chamber 15 will, after acting on the piston in said chamber, leave the said chalnberby means of port 80, passing into. chamber 81, whence it passes through port 82 (Fig. into chamber 83. The latter 84 with the intake side of the main valve structure so.that the water which was in chamber 15' may j om the intake water. The

tions' of the auxiliary valve chamber passes down through the pipes 65, shown in Fig.- 1, into the waste water chamber 66. V I In someinstances, it is found desirable operate the pump by one source of water and to take from a separate source the water to be pumped, In order to accommodate these conditions, I have provided an opening 8, shown in Fig. 4. which-when a single source of water is used, is who plugged by a member 8. and when a separate source of water is used, connection from the pumping chamber 3 to said source is obtained by connecting the inflow pipe in the opening 8"" and closing the opening 8; by means of a metal seat 'orotherwise. Having thus described-the invention, is claimed as new is: i r .1. In an engine of the class described, the combination with acylinder and a ,piston valve for controlling su ply and exhaust of,

auxiliary valve for. controlling movements of the main valve, and a housing for said: valves, said housing having an intake port communicating with-both valves substan tially midway of their length, cylinder ports take port at the main valve and communi what ally with I'LSl'n'tt to each of said cylinder ports, a mam valve chamber zit-each end of the main valve, aux1li'ar valve ports disposed laterally of the intake iit the auxiliary valve and leading therefrom tothe respective main valve chambers, an auxiliary valve exhaust port disposed laterally of each auxiliary valve port adapted to communicate therewith alternately, a chamber at each end of the auxiliary valye, a port leading from each end portion of the cylinder adjacent the respective end to the respective auxiliary valve chamber, and an exhaust port for. each of said auxiliary valve chambers disposed to drain pressure vehicle therefrom relative to the positions of the auxiliary valve, said main valve being formed with valve heads adapted to alternately close the cylinder exhaustports and positioned on the valve for closing one cylinder exhaust port and at the same time affording communication between the intake and the adjacent cylinder port,

and at the same time establishing communication between "the other cylinder exhaust port and the other cylinder port, said main valve being also formed with heads disposed-to be influenced by pressure vehicle in said main valve chambers, the auxiliary valve being formed with heads adapted to alternately close communication between each auxiliary valve port and the respective adjacent auxiliary valve exhaust port and at the same time to alternately} establish com 'munication between the intake and the other auxiliary valve port, and a head ateach end of the auxiliary valve disposed in the respective auxiliaryvalve chamber and adapted to be influenced by the pressurevehicle therein. 2. In an engine ofthe class described, the combination, with a cylinder and a reciprocating piston-therein adapted-to travel substantially throughout the length of the cylinder, of a main valve for controlling supply and exhaust of pressure vehicle to and from the cylinder, an auxiliary valve for controb ling movements of the ma n valve, and a housing for said valves, saidhousing having an intake port communicating with both valves substantially midwayof their length,

cylinder ports leading from the intake at the main valve and communicating with the respective ends of the cylinder, communication between the intake port and the cylinder lished ,and cut off by said main valve, a cylports being adapted to be alternately estab-- inder exhaust port for each of said cylinder ports disposed to be alternately opened and closed, with respect to the cylinder ports,

', main valve chambers for the end portions of themainvalve adapted to receive pressure vehicle'for actuating the main valve, intake and' exhaust ports for said main valve cham- ,bers,'disposed to be alternately opened and eating with the respective ends of the cylin (1813A?! cylinder exhaust port disposed-laten plosedubythe auxiliary valve, auxiliary valve gliambers adapted to receive. pressure vehicle ports for -'sai the auxiliary valve, exhaust auxiliary valve' chambers, and

ports leading-directly from the cylinder adjacent the ends thereof to the auxiliary valve chambers independently of the main valve, the last mentioned ports communicating with the cylinder at points adjacent the ends of the cylinder but spaced therefrom a dist'or actuatin tanoe sufficient for accommodating the piston between the terminal of the respective port and the adjacent end of the cylinder.

' therein adapted to reciprocatesubstantially- 3. In an engine of the class described, the combination with a cylinder and a piston throughout the length of the cylinder, of a main valve controlling supply and exhaust of pressure vehicle to and from the cylinder, an auxiliary valve for controlling move ments of the main valve, and a housing for said valves, said housing having an intake port communicating with both valves, cylinder ports'leading laterally from e'achside of the intake port at the main valve and communicating with the respective ends of the cylinder, a cylinder exhaust port dis-- posed laterally with respect to'each cylinder port, valve seats between the cylinder ex- 'haust ports and the respectivecylinder ports and between the intake and therespective cylinder ports, formed of a Web of the material of the housing and each cylinder port and cylinder exhaust port being enlarged to form an annular space; about and extending laterally chamber at'each'end of the/main va'lve,-auxternately, valve of a web iliary valve exhaust port being enlarged toform an annular space about and extending laterally of its respective valve'seat, a chamber. at each end of the auxiliary valve, a port leading. from each end portion of the cylin der to therespective auxiliary valve chamber, and'an exhaust portfor each of said auxiliary valve chambers disposed to drain pressure vehicle therefrom relative to the positions of the auxiliary valve, said main valve being formed with valve heads adapt ed to alternately close the, cylinder: exhaust orts and posit1oned' on thevalve for closing onecylinder exhaust "port and at the same time afiording communication between the intake and the adjacent cylinder port,

of the intake. each of said seats beingof itsjr'espective valve 'seat, a main valve and at the" same time to establish communication between the other cylinder exhaust port and-the other cylinder port,'said main valve being also formed with heads disposed to be influenced by pressure vehicle in said main valve chambers, the auxiliary valve being formed'with heads adapted to alternately close communicati'on between each auxiliary valve port and the respective adjacent auxiliary valve exhaust port and at the same time to alternately establish communication between the intake and the other auxiliary valve port, and a head at each end of the auxiliary valve disposed in the respective auxiliary valve chamber and adapted to be influenced by the pressure vehicle therein.

4; In-anengine of the class described, the combination,with a cylinder and a piston therein adapted to travel" substantially throughout the length of the cylinder, of a main valve for controlling supply and exhaust of pressure vehicle to-andfrom thecylinder,-an auxiliary valve for controlling -movements of the main valve, and a housing for said valves, said housing-having an intake port communicating with both valves substantially midway of their length, cylinder ports-leading laterally from each side port at the main valve and communicating with the respective ends of the cylinder, a cylinder exhaust port disposed laterally with respect \to each of said cylinder ports, a-main valve chamber at each end of the main valve, auxiliary valve ports disposed laterall of the intake at the auxiliary valve and 'eading therefrom to the respective main valve chamber, an au'xiliary valve exhaust 'portdispo'sed laterally of each auxiliary valve port adapted to communicate therewith alternately, a chamber at each end of the auxiliaryvalve, a port leadin from each end portion of the cyllnder, a jacent the respective end, to the respective auxiliary valve chamber independently of the main valve, and an exhaust port for each of said auxiliary valve chambers disposed to drain pressure vehicle therefrom relative to the positions of' the auxiliary valve, each of said auxiliary valve chamber exhaust ports being located relative to the respective end'of the auxiliary valve for bleeding presslire vehicle1from within the auxiliary valve chamber f or efiecting starting of the return valve, said main valve being formed wit valve' heads adapted to alternately close the cylinder exhaustportand at theisa'me time affording communication between the intake'and the ad'acent'cylinder port, and at the same. time establishing communication ,betweenthe other cylinder exhaust-port and the other cylinder l i v ing-also formed ,w1th1heads disp'osedto be 1 port, said mam valve beu'enced' by pressure which infsaid main thrustfof the auxiliai valvechambers, .the. auxiliary; valve "being formed with heads adapted to alternately iary' valvechamber and adapted to be inclose communication between each auxlliary fluenced by the pressure vehicle therein. 10

valve port and the respective adjacent auxil- In testimony whereof I affix mysignature iary valve exhaust port and at the same time in presence of two witnesses. x to alternately establish communication be- LAURITS A. LAURSEN. tween the intake and the other auxiliary Witnesses: valve port, and a head at each end of the aux- ANNA E. SINDELL, iliary valve disposed in the respective auxil WV. J. EBERIVEIN.

copies of this P t may be obtained iorfive cents each, by addressing the' Commissioner of Patents,-

' Washingtoml). G."

Images