US624943A - Edgar d - Google Patents
Edgar d Download PDFInfo
- Publication number
- US624943A US624943A US624943DA US624943A US 624943 A US624943 A US 624943A US 624943D A US624943D A US 624943DA US 624943 A US624943 A US 624943A
- Authority
- US
- United States
- Prior art keywords
- fluid
- liquid
- impellers
- inlet
- casing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 description 28
- 239000007788 liquid Substances 0.000 description 26
- 239000000203 mixture Substances 0.000 description 4
- 210000001503 Joints Anatomy 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000001050 lubricating Effects 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
Definitions
- 1 indicates the case of a rotary blower of the well-known Roots type; 2, the fluid-inlet thereto, the same being disposed at the base of the casing and adapted to admit the fluid, be it air or gas, to the interior of the casing; 3, the fluid-outlet at the top of the casing; 4, the usual pair of intermembering impellers arranged on parallel axes between the fluid-inlet and the fluidoutlet of the casing, the interior walls of the casing being of a form to be swept by the ex tremities of the impellers; 5, a liquid-supply pipe leading to the casing from a source of supply of liquid, as water or oil, under pressure; 6, spray-heads arranged within the casing in connection with pipe 5, these sprayheads being located near the fluid-inlet 2 and between that' inlet and the impellers 4:, and being arranged to spray upwardly into the volume of fluid entering the fluid-inlet 2 and approaching the impellers, and 7 valves for controlling the flow of liquid to
- Valves 7 serve in regulating the amount of the liquid injected into the uncompressed fluid. Surplus liquid, not becoming fully entrained with the uncompressed fluid, may freely drain backward through fluid-inlet 2.
- the amount of liquid received by the im-- pellers is thus only so much as becomes diffused with the fluid, any excess of liquid returning by gravity without passing through the blower.
- the blower thus requires to deal with and deliver only the liquid entrainedwith the fluid, and the possibilities of liquid in mass in the blower or discharge are avoided.
- a fluid-compressor the combination substantially as set forth, of a case provided with a fluid-inlet and a fluid-outlet, rotary impellers above the level of said inlet, a liqaid-spraying device disposed below the impellers and above the level of the inlet said fluid-inlet being arranged to receive the surplus liquid as it gravitates to the bottom of the case.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Patehted May I6, I899.
E. n. JOHNSTON. ROTARY BLOWER. (Application filed Apr. 29, 1898.)
(No Model.) A
lllflllllfllllllllllll-l min Inventor W w Attorney Witnesses:
m. SBA:
m: Nonms FEYERS w v PHOTQLIYHLL. wAsmiusmm n c.
' Nrrnn STATES PATENT OFFICE.
EDGAR 1). JOHNSTON, OF CONNERSVILLE, INDIANA, ASSIGNOR o THE P. H. a F. M. ROOTS COMPANY, OF SAME PLACE.
ROTARY BLOWER.
SPECIFICATION forming partof Letters Patent No. 624,943, dated May 16, 1899. 4
Application filed April 29, 1898.
To all whom it may concern.-
'Be it known that I, EDGAR D. JOHNSTON, of Connersville, Fayette county, Indiana, have invented certain new and useful Improvements in Rotary Blowers, (Case (3,) of which the following is a specification.
This invention pertains to improvements in rotary blowers; and the improvements will be readily understood from the following description, taken in connection with the accom= panyingdrawings, in which Figure 1 is a vertical transverse section of a blower embodying my improvement, while Fig. 2 is a side elevation of the same, part appearing in vertical longitudinal section.
In the drawings, 1 indicates the case of a rotary blower of the well-known Roots type; 2, the fluid-inlet thereto, the same being disposed at the base of the casing and adapted to admit the fluid, be it air or gas, to the interior of the casing; 3, the fluid-outlet at the top of the casing; 4, the usual pair of intermembering impellers arranged on parallel axes between the fluid-inlet and the fluidoutlet of the casing, the interior walls of the casing being of a form to be swept by the ex tremities of the impellers; 5, a liquid-supply pipe leading to the casing from a source of supply of liquid, as water or oil, under pressure; 6, spray-heads arranged within the casing in connection with pipe 5, these sprayheads being located near the fluid-inlet 2 and between that' inlet and the impellers 4:, and being arranged to spray upwardly into the volume of fluid entering the fluid-inlet 2 and approaching the impellers, and 7 valves for controlling the flow of liquid to the sprayheads.
During the rotation of the impellers the' fluid being dealt with is drawn in at inlet 2 and gathered by the impellers and compressed and expelled at outlet 3. Spray-heads 6 inject finely-divided liquid upwardly into the fluid prior to its reaching the impellers, the liquid instantly becoming diffused with thefluid and going to the surfaces of the impellers and casing and being expelled from outlet 3 with the fluid, the entrained li quid passing onward with the compressed fluid or Serial Nb. 679,171. (No model.)
being trapped away therefrom by any usual or suitable trap, if desired. The liquid thus becoming entrained with the fluid before the fluid is attacked by the impellers bathes the contacting surfaces of the machine, lubricating those surfaces and packing the joints of contact and serving also in taking up some of the heat due to compression of the fluid. Valves 7 serve in regulating the amount of the liquid injected into the uncompressed fluid. Surplus liquid, not becoming fully entrained with the uncompressed fluid, may freely drain backward through fluid-inlet 2.
The amount of liquid received by the im-- pellers is thus only so much as becomes diffused with the fluid, any excess of liquid returning by gravity without passing through the blower. The blower thus requires to deal with and deliver only the liquid entrainedwith the fluid, and the possibilities of liquid in mass in the blower or discharge are avoided.
I claim as my invention- 1. In a rotary blower,the combination,sub-
.stantially as set forth, of a casing having a pressed fluid on its .way to the impellers,
wherebythe fluid-inlet serves also as the outlet for the rejected liquid.
2. In a fluid-compressor, the combination substantially as set forth, of a case provided with a fluid-inlet and a fluid-outlet, rotary impellers above the level of said inlet, a liqaid-spraying device disposed below the impellers and above the level of the inlet said fluid-inlet being arranged to receive the surplus liquid as it gravitates to the bottom of the case.
EDGAR D. JOHNSTON. Witnesses:
L. E. BLINN,
R. B. INsLEY.
Publications (1)
Publication Number | Publication Date |
---|---|
US624943A true US624943A (en) | 1899-05-16 |
Family
ID=2693546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US624943D Expired - Lifetime US624943A (en) | Edgar d |
Country Status (1)
Country | Link |
---|---|
US (1) | US624943A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3811660A (en) * | 1970-11-20 | 1974-05-21 | H Cole | Equipment for making foam for dust suppression and other purposes |
-
0
- US US624943D patent/US624943A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3811660A (en) * | 1970-11-20 | 1974-05-21 | H Cole | Equipment for making foam for dust suppression and other purposes |
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