US2477371A

US2477371A - Variable delivery, reversible flow vane pump for fluid transmissions

Info

Publication number: US2477371A
Application number: US619543A
Authority: US
Inventors: Hartzler Ralph Daniel
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-10-01
Filing date: 1945-10-01
Publication date: 1949-07-26
Anticipated expiration: 1966-07-26

Description

July 26, 1949. R. D. HARTZLER 2,477,371

VARIABLE DELIVERY, REVERSIBLE FLOW VANE PUMP FOR FLUID TRANSMISSIONS Filed Oct. 1, 1945 5 Sheets-Sheet 1 Rap/190M161 Harfifefi July 26, 1949. R. D. HARTZLER 2,477,371

VARIABLE DELIVERY, REVERSIBLE FLOW VANE PUMP FOR FLUID TRANSMISSIONS Filed Oct. 1, 1945 5 Sheets-Sheet 2 7 49 Inventor Attorneys July 26, 1949. HARTZLER 2,4 7 7,371

VARIABLE DELIVERY, REVERSIBLE FLOW VANE PUMP FOR FLUID TRANSMISSIONS I5 Sheets-Sheet 5 Filed Oct. 1, 194,5

. Inventor )/4 Ealph flanielfiarizier Patented July 26, 1949 PATIENT omen VARIABLE DELIVERY, REVERSIBLE FLOW VANE PUMP FLUID SMISSIONS Ral h Daniel Hart East tyin Mo. Appiication Qctobei' 1; 1945 Serial No. 619,543 1 Claim. (01. 103 -3) is practically frictionless to operate with re sultsnt mo ne s ir sue-. 1 erection- A r r bje t of he i vsnt en is th pre ision of a unit of this character, which is simple in c st uct sn oroughl s stlsaed sfiisis t in operation, tron du abl s 9 max mum power m s ipa pss sss s .Q a ts d void s ea transmiss on. and issrcsc irs t a actu e a d insta lith hes a d ot er chistt t let n o nsi s i the i a ure 9i on rl stiq st on and a ran emen vi a ts, a w ll be here na ter mor ful describ d in detail l sw trated in the accompanying drawings, which dis:

close the embodiment of the invention, and pointed out in the claim hereunto appended.

In the accompanying drawings:

Fi ur .1 .is a er ical lsneita -nal ssstisaa vi -W centrally through a transmission unit constructed in accordance with the invention.

Figure 2 is a view similar to Figure 1 taken substantiallyat right angles thereto.

Figure 3 is a vertical central sectionai view thr u h e r r i g mechanism the pit and inone adjusted position.

Fig r 1 a view mila t 3 ak n se tionally at right angles to the position of the mechanismsh wninrt eurefi.

Fi ure 5 is a viewsimi a is Fi ure 1 showing a slight modification.

Fig-prep is a view similar to Figure 2 showing the modification shown in Figure 5.

. Fi ure 7 is a plan view of .the mechanism shown in Figure 3 looking toward the same from the line 7-7 of Figure 3 as indicated by the arrows.

Figure 8 is a sectional view taken on the line 8-8 of Figure 4 looking in the direction of the arrows.

Figure 9 is a perspective view of the adjustable element of the reversing mechanism shown in Figures 3, 4, 7 and 8 of the drawings.

Figure 10 is a fragmentary vertical sectional view through the unit and the reversing mechanism showing in detail the latching of the lat: ter.

' Figure 11 is a view similar to Figure 10 showing the latch in a latching position.

Figure 12 is a fragmentary sectional View taken on the line I2--l2 of Figure 11 lookin in the (lip rection of the arrows.

Figure 13 is an enlarged transverse sectional view taken on the line |3--l3 of Figure 1.

Figure 14 is an enlarged sectional view taken on the line Ill-l4 of Figure 13.

Figure 15 is a sectional view through. the adjustable flow divider of the device.

Figure 16 is an exploded perspective view of the elements of the divider.

Similar reference characters indicate corresponding parts throughout the several views in the drawings. 7 i

Referring to the drawings in detail, particularly the views therein excepting Figures 5 and 6, the hydraulic power transmission unit constituting the present invention, comprises an upstanding circular shaped casing or housing l0 having opposed end plates I I and I2, respectively, to form interiorly of such casing or housing ID a rotor chamber. l3 for a power rotor M from which extends a power shaft, a portion thereof beingindi cated at l5 journaled in a bearing 16. Rotor I4-is formed with an annular rim 17 provided with uniformly spaced clearances for a plurality of impact blades or fins lfl having radial spokes 49 extending from a hub 2i journaled upon a stud axle 2! from an eccentric g2 with its turning arbor 23 fitted in a bearing 24 built'outwar'd- 1y from plate 1-2. Plate I2 is also provided with a recess or pocket 25 ior the eccentric 22, Eccentric 22 has fixed thereto a throw crank or arrn 26 shown in Fig. l whereby the eccentric 22 can he shiftedto change the axis f rotation cf the tor l4 within the housing The axisfof rota? tion of the blades is changed in this manner. The stub shaft 2' ts at b ssueed pr ss re .2? is moved when arm 25 is rotated thereioregsh aft 2i and the axis of rotation is accordingly changed.

The housing It! is formed with a throat extension 28 having divided passages 29, respectively at opposite side of a stationary wall 36 including an interfitted slidable partition 3| which latter has hinged at 32 thereto a control gate or valve 33, opened and closed by a pitman 34 having swinging pivotal connection 35 therewith and a, bearing connection 36 with the stud axle 2i.

as best seen in Figures 13-16 of the drawings,

When the divider seen best in Figure 15 is raised, the crank shaped latch 31 which is pivoted to the divider 33, is also raised. Accordingly, the rollers 21 at the end of the latch 31 ride in the cam track (unnumbered) seen in Figure 14, thereby pivotally actuating the crank shaft latch 31.

A pair of converging tongues 10 and 12 are dis posed on the undersurface of the slidable plates Hand 16 on'the divider 33. Accordingly, when the divider 33 is lowered, the crank shaped latch 31 having

openings

18 and 80 at the top thereof with said tongues therein spreads the plates 14 and I6 apart due to the cam action associated therewith,'the spread position shown in'Flgure 1.3. However, when the divider is raised, the cam actuated latch 31 contracts the two plates for free flow of liquid through the throat.

In order to retain the

plates

14 and 16 in proper position on the divider 33, they are retained for sliding movement thereon by means of dovetailed tongues and grooves 8| and 82 respectively formed on the bottom surface of the plates and on the top of the divider.

A spring 84 is fixed at one end to said latch 31 and to said divider at the other end to press the rollers 27 firmly against the cam track.

Associated with the base portion 38 of the throat 28 is a fluid reversing mechanism, which includes a cylinder 39 having therein a reversing valve body 40. Cylinder 39 is provided with ports 4| and 42, at its opposite ends which are aligned diametrically opposite and-connect with straight and curvilinear

fluid flow passages

43 and 44, respectively, extending through the body 40 as best seen in Figures 3, 4, 7, 8 and 9 of the drawings for the proper directing of fluid under pressure to the throat 28 and thence to the chamber l3 within the casing or bushing [0. The body 40 is centrally pivoted at 45 for the turning thereof by a control lever 46. By operating the lever 46, the body 40 can be turned to regulate the flow of fluid under pressure to the rotor M to drive the same in either direction. The fluid under pressure is delivered to and from the casing or housing I through the end 41 of the cylinder 39, the supply and discharge leads of the fluid being not shown. The body 40 is locked in adjusted position by a spring-tensioned latch 48 which can be tripped from latching position to unlatching position or vice versa by rotation of control lever 46. Latch 48 engages in keeper notches 49 in the body 40 as is best shown in Figures 10, 11 and 12 of the drawings.

In Figures and 6 of the drawings there is shaft, universal joints and difierential when equipped in an automobile or other motor vehicle. The unit has only one control lever to be operated by the foot or hand and one reverse lever which may be operated manually, electrically or hydraulically. The unit has an unlimited variation of speed and power, thus providing smooth; and economical operation.

From the foregoing it will now be seen that there is' herein provided a device accomplishing all the objects of this invention, and others, including many advantages of great practical utility and commercial importance.

.As many embodiments may be made of this inventive concept, and as many modifications may be made in the embodiment herein shown and describedit is to be understood that all matter herein is to'be interpreted merely as illustrativeand not in a limiting sense.

What is claimed is: I

A unit of the kind described, comprising a housing having a fluid supply and dischargethroat, a rotor operating Within the housing, eccentrically adjusted impact blades associated with the rotor, a fluid divider within the throat for controlling the admission and discharge of fluid through said throat to and from the housing, an adjustable reversing mechanism associated with the threat for regulating the direction of flow of fluid to and from the said throat, means including an eccentric for adjustment of the said blades with relation to the rotor, means coacting with the blade adjusting means for adjusting the divider, means for latching the reversing means in adjusted position, and means for latching the divider in adjusted position through the action of the eccentric means.

RALPH DANIEL HARTZLER.

REFERENCES CITED The following referen ces are of record in "the file of this patent:

UNITED STATES PATENTS Great Britain Jan. 16, 1930