US1604802A

US1604802A - Pump

Info

Publication number: US1604802A
Application number: US74684A
Authority: US
Inventors: Brenzinger Julius
Original assignee: MAX AMS CHEMICAL ENGINEERING C
Current assignee: MAX AMS CHEMICAL ENGINEERING C; MAX AMS CHEMICAL ENGINEERING Corp
Priority date: 1925-12-11
Filing date: 1925-12-11
Publication date: 1926-10-26
Anticipated expiration: 1943-10-26

Description

Oct. 26 1926.

- J. BRENZINGER PUMP Filed Dec. 11, 1925 www Patented ct.. 2b, 393@ aars cenni- CAL ENGXNEERNG CORPORATEON, F BRDGEPORT, CONNECTICUT, l GRPOBA:

TXON 0F CONNECTICUT.

PUMP.

Application 'tiled December 11, 1925. serial No. 'Mt

rlhis invention relates to pumps ol the type in which a rather exact quantity ot fluid, such as the viscous material used tor artificial silk, is delivered, and the main object and features of the invention is to provide means whereby the wear ot the parts can be compensated tor so as to retain the ability to deliver a measured quantity of lluid.

ln the accompanying drawings the invention is disclosed in a concrete and preferred form in which:

Fig. 1 is a general view in side elevation, showing a pump embodying the invention.

Fig. 2 is a vertical sectional view substantially on the plane of line 2-2 ot Fig. 1.

Fig. 3 is a vertical sectional view substantially on the plane of line 3--3 of Fig. 2.

Fig. 4 is a sectional view substantially on the plane ot line 4.1 of Fig. 3.

Fig. 5 is a perspective view of the ller members used in the device.

ln the art as heretofore practiced it has been customary to use two external spur gears or pinions meshing with each other teeth of the pinions produces a leakage be- I tween the teeth ot the gears at the point where they mesh thus affecting adversely the measuringr quality of the pump or lts capacity to deliver a given amount with each revolution.

using as the pump elements one internal and one external gear meshing with each other as l tind that by this construction means can be readily provided to press the gears into closer engagement to compensate 4for wear, and also it is more dilieult for the material to work back between the teeth ot the gears because more teeth are in mesh than in a construction involving the use ot two external gears.

1 indicates a ca-sing of any suitable construction but here conveniently composed ot two

members

2 and 3 bolted together as at lland having interposed between them a plate t. having a circular cut-away portion G that constitutes the pump chamber., l and indicate respectively an inlet and an outlet to and 'from said chamber. Seated within the cut-away n tion i annular. 9 having internal r rllhis defect l' overcome byl in the present instance, this annulus is simply a loose ring guided by the walls ct the pump chamber. 10 is an external gear or pinion also contained within the pum chamber and meshing with the interna gear. Gear l0 is mounted on a shaft 11, driven 'froman suitable source, in such a way that a slig it diametral motion is possible, this boing indicated by the double line at 12. 13 and 142 are segmental shaped and taper filler members secured to member 2 by means ot set screws 15 and occupy the space between the unmeshed parts of the gears.

It will now be understood that rotation imparted to shaft 11 Will cause gear 10 to imparta travelingl motion to the annulus and that material entering from inlet 7 will be carried around on both sides of the liller members or

guides

13 and 14 in the spaces of the unmeshed parts ofthe teeth of both gears and `will thence be delivered to outlet 8. ShouldY now the gear teeth become Worn it will be understood that the filler members or guides can be adjusted by reason ot slots 16 to bring the gears more closely together to thereby prevent flow of fluid between the meshed parts of the teeth of the gears.

I claim:

1. A pump including: a casing having an inlet and an outlet, and pumping elements embracing: an internal gear rotatable in said casing, and an external pinion, mounted to-have a slight diametral motion, also rotatable within said casing and meshing with the internal gear; and filler means to take up the wear 'ot the gears by pressing them vinto closer engagement with each other. 2. A pump including: a casing having an inlet and an outlet, and pumping elements embracing: an internalV gear. rotatable in said casing, and an external pinion, mounted to have a slight diametral motion, also rotatable Within said casing and meshing with the internal gear, and adjustable segmental shaped liller members within the casing and between the unmeshed arts ot the gears to take up the wear ot tne gears by pressing them. inte closer engagement with ether.

3. A pump including: a casing having a circularshaped pump chamber provided with l inlet, segmental guides chamber, annu- Il thin the lus having 'internal teeth loosely mounted Within the pump chamber and surrounding the guides, an external gear mounted to have a slight diametral play', Within the chamber between the guides and the annulus and in mesh with the internal teeth of the latter, and means for adjusting the guides to bring the gear into closer engageu ment with the annulus.

4. A pump including: a casing having a circular-shaped pump chamber provided with an outlet and an inlet, segmental taper guides within the pump chamber, an an- Lene-,eea

nulus having internal teeth loosely mounted Within the pump chamber and surrounding the guides, an external gear mounted to have a slight diametral play, Withinv the chamber between the guides and the annulus and in mesh with the internal teeth of the latter, and means for adjusting the guides to bring the gear into closer' engagement with the nnulus.

Signed at Bridgeport in the county of Fairfield and State of Connecticut this 9th day of December, 1925