US1871525A - Rotary pump - Google Patents

Rotary pump Download PDF

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US1871525A
US1871525A US470893A US47089330A US1871525A US 1871525 A US1871525 A US 1871525A US 470893 A US470893 A US 470893A US 47089330 A US47089330 A US 47089330A US 1871525 A US1871525 A US 1871525A
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abutment
cylinder
section
blades
rotor
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US470893A
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Hudson Arthur
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    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
    • F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C2/3441—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C2/3443—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation with a separation element located between the inlet and outlet opening

Definitions

  • This invention relates to rotary machines, Figs. 3 and spare; side as nt elevations as fluid pumps or engines, in which the rotor of the mentioned annul cture; has piston blades movable back and forth Fig. 5 shows two blades and certain pins through its periphery and extending lengthintervening between them;
  • Fig. 6 is a section on line 66, Fig. 7; 5
  • Fig. 7 is a vertical section of another form outlet from each other and means to cam the 0f the machine; blades inward in order to pass the abutment.
  • Figs. 8 and 9 are side and front elevations Following the usual custom I depend, acof its annular structure; and
  • Figs. 10 and 11 lo cording to the present invention, on some Figs. 10 and 11 are inside and edgewise 55 force to hold the blades against the abutviews of the cylinder heads for this form of ment and its camming-means especially to the mach ne. attain good sealing contact against leakage Figs. 1 to 5:
  • the cylmder or casing is from the inlet to the outlet direct, and instead rmed by the cylinderproper 1 and its two 15 of forming the structure including the abutend walls or heads 2, all bolted together as ment and cam means as usual with a pair (or shown-in Fig.
  • the cyhnder proper has the opposite pairs in case the machine is resu l openings a and 6, either of which may versible, as usual) of tapering cam horns, I be the inlet and the other the outlet. form it as an apertured annular structure 3is the substantially cylin ri l r r fixed against which the blades under the centrifuon shaft 4.
  • this structure and 5 its piston blades or members slidable being preferably split and lap-jointed in radially in slots 6 'in the rotor and, when some plane angularly related to the diameter the latter is rotated, held at their outward occupied by the abutment whereby the seclimit (as will appear) by centrifugal force.
  • the mentioned annular structure comprises justed toward the other section to take up he abutment 7,'t gS 8 nne her the wear produced by theblades and occurby, and prefer bly & rv w 9 connectms' ring, as it always does, principally at the the rings opposite the abutment; in'fact,with' Y abutment.
  • cam means having horns the web presentthe structure is in effect a 30 or i le t j ti th lik h t sleeve, with opposite apertures. 10 each acterized by terminals or ends are used there bounded by the abutment, web and two rings.
  • the outer and inner surfaces 86 of the structure are cylindrical, but the inner IQthQ fl j a surface is oifset eccentrically in a direction g- 1 swtlfm 011 111359 5-1; F 55 2 from the abutment or so'that at the abutment Fig. 2 1s a vertlcal SectlOlI 03550116 form 0 its thickness is greatest.
  • the annular struc- 45 the machine in the plane-ofits rotor axis; ture fits the cylinder and is kept from rotative displacement by a rib 13 on the abutment fitting a groove 14 in the cylmder, the cylinder having adjusting screws 15 to bear against this rib.
  • the annular structure not only avoids the mentioned interference between its cams and the blades which characterizes the usual construction but it includes as a part thereof that surface (to wit, of web 9) which in a portion of the revolution of a blade coacts with the latter to seal off from each other the fluid bodies relatively ahead of and behind the blade; usually a. lining is resorted to to aflord such surface, but my construction eliminates the lining as an element distinct from the abutment and cam device. If wear occurs which would allow leakage between the blades and the abutment this may be taken up by adjustment of the screws 15, which sets the section of the annular structure having the abutment toward the other section.
  • Figs. 6 to 11 In this form the parts 1a to 154: are all substantially the same as the cor-- respondin parts 1 to 15 in Figs 1 to 5 excepting as f0 ows: These views show that the inner surface of the annular structure need not necessarily be truly circular, as in Figs. 1 to 5. They also show the means for positively moving the blades outwardly as comprising cam surfaces 18w which may be formed in endless grooves 18 in the inner faces of the heads 2a and studs 19 on the ends of the blades arranged to wipe against said surfaces. It will be understood that the outer sides of the grooves do not oppose centrifugal force acting on the blades to hold them in sealing contact with the web 9a.
  • a rotary machine of the class described comprising a cylinder having in its cylindrical wall a fluid intake and outlet a rotor revoluble in the cylinder and havlng a piston movable toward and from and normally urged toward said wall of the cylinder, an annular structure extending around the rotor within the cylinder and outwardly abutted by the piston and apertured for passa e of fluid from the intake to the outlet aroun the rotor and having an abutment opposing direct fluid flow from the inlet to the outlet and having its inner surface formed to cam the piston past the abutment, said structure being split in two sections in a plane angularly related to the diametric plane occupied by the abutment and said sections having their ends lapping and flush with each other at the inner periphery of said structure, and means to adjust the section having the abut- 1 ment bodily toward the other section.
  • a rotary machine of the class described comprising a cylinder having in its cylindrical wall a fluid intake and outlet, a rotor revolublein the cylinder and having a piston movable toward and from and normally urged toward said wall of the cylinder, an,
  • annular structure extending around the rotor within the cylinder and outwardly abutted by the piston and apertured for passage of fluid from the intake to the outlet around the rotor and having an abutment opposing direct fluid flow from the inlet to the outlet and having its inner surface formed to cam the piston past the abutment, said structure being split. in two sections in a plane angularly, related to the diametric plane occupied by the abutment and the section having the abutment having' its ends spaced from the ends of the other section, and means to adjust the section having the abutment bodily toward the other section.
  • a rotary machine of the class described comprising a cylinder having in its cylindri-' cal wall a fluid intake and outlet, a rotor revoluble in the cylinder and having a piston movable toward and from and normally urged toward said wall of the cylinder, 'an
  • annular structure extending around the rotor within the cylinder and outwardly abutted by the piston. and apertured for passage of fluid from the intake to the outlet around the rotor and having an abutment opposing direct fluid flow from the inlet to the outlet and having its inner surface formed to cam the piston past the abutment, said structure being split in two sections in a plane angularly related to the diametric plane occu led by the abutment and having the ends the section having the abutment beyond the axis of the cylinder relatively to the abutment and bearing against said wall, and means to adjust the section having the abutment bodily toward the other section.

Description

Aug. 16, 1932- A. HUDSON ROTARY PUMP Filed July 26. 1930 2 Sheets-Sheet 1 INVENTO'R, Iii bu. rl/adsan,
ATTOfiNEY Aug. 16, 1932.
A. HUDSON ROTARY PUMP Filed July 25, 1930 2 Sheets-Sheet 2 r'-- "I- "'r" INVENTOR, lqriliu r/fi i- ATTORNEY UNITED STATES PATENT OFFICE nnrnun nunsou, or cmr'rou, NEW man! noun? rum Application filed July as, 1930. Serial no. 470,898. I
This invention relates to rotary machines, Figs. 3 and spare; side as nt elevations as fluid pumps or engines, in which the rotor of the mentioned annul cture; has piston blades movable back and forth Fig. 5 shows two blades and certain pins through its periphery and extending lengthintervening between them;
5 wise of its axis and the cylinder has an abut- Fig. 6 is a section on line 66, Fig. 7; 5
ment or partition to separate its inlet and Fig. 7 is a vertical section of another form outlet from each other and means to cam the 0f the machine; blades inward in order to pass the abutment. Figs. 8 and 9 are side and front elevations Following the usual custom I depend, acof its annular structure; and
lo cording to the present invention, on some Figs. 10 and 11 are inside and edgewise 55 force to hold the blades against the abutviews of the cylinder heads for this form of ment and its camming-means especially to the mach ne. attain good sealing contact against leakage Figs. 1 to 5: The cylmder or casing is from the inlet to the outlet direct, and instead rmed by the cylinderproper 1 and its two 15 of forming the structure including the abutend walls or heads 2, all bolted together as ment and cam means as usual with a pair (or shown-in Fig. 2; the cyhnder proper has the opposite pairs in case the machine is resu l openings a and 6, either of which may versible, as usual) of tapering cam horns, I be the inlet and the other the outlet. form it as an apertured annular structure 3is the substantially cylin ri l r r fixed against which the blades under the centrifuon shaft 4. journaled in the casing heads 2 gal action bear continuously, this structure and 5 its piston blades or members slidable being preferably split and lap-jointed in radially in slots 6 'in the rotor and, when some plane angularly related to the diameter the latter is rotated, held at their outward occupied by the abutment whereby the seclimit (as will appear) by centrifugal force.
2 tion thereof having the abutment may be ad- The mentioned annular structure comprises justed toward the other section to take up he abutment 7,'t gS 8 nne her the wear produced by theblades and occurby, and prefer bly & rv w 9 connectms' ring, as it always does, principally at the the rings opposite the abutment; in'fact,with' Y abutment. Where cam means having horns the web presentthe structure is in effect a 30 or i le t j ti th lik h t sleeve, with opposite apertures. 10, each acterized by terminals or ends are used there bounded by the abutment, web and two rings. is always an attendant interference of the vThe g 3111s 6"?) are spllt at 11 Into d ith th bl d hi h di t b th l t. two sections one including-the abutment and ters action and also produces a hammering. the other the web, when P 'F Q and Pr f Besides, my construction permits a lining as ably m a sm Plane whlch 1S perpendlpu an element distinct from the abutment and ii: g fififi ii ggg ifi fiz ggfiz i f gig 32 3 3;: Egg 5% i s igfi gzfiz g z actually lapo1nts whose lapplng surfaces 12 are in planes 'an ularly related to the axis of 40 g zfigga y fthe mah 1ne1sgreat the structure. The outer and inner surfaces 86 of the structure are cylindrical, but the inner IQthQ fl j a surface is oifset eccentrically in a direction g- 1 swtlfm 011 111359 5-1; F 55 2 from the abutment or so'that at the abutment Fig. 2 1s a vertlcal SectlOlI 03550116 form 0 its thickness is greatest. The annular struc- 45 the machine in the plane-ofits rotor axis; ture fits the cylinder and is kept from rotative displacement by a rib 13 on the abutment fitting a groove 14 in the cylmder, the cylinder having adjusting screws 15 to bear against this rib. The ends of the section having the abutment are beyond the axis of the cylinder relatively to the abutment, wherefore, since the ends of sa1d sectlon bear against the cylinder, and if, of course, the 1nner surfaces of the two sections are initially flush, when adjustment of the sectlon having the abutment toward the other section occurs this flush relation will be preserved as an incident of the ends of the former section being pressed together by the cylinder, as of course would not result if the plane of division were between the abutment and said axis.
It will be understood that when the machine is operating the fluid moves from the inlet through one aperture 10, around the rotor (and between it and web 9, if present) and then through the other aperture 10 to the outlet, direct communication from the inlet to the outlet being cut off by the abutment 7. The rings of course, due to the eccentricity of their inner surfaces, which brings them flush with that of the abutment, cam the blades inward so as to pass the abutment, they thereupon returning (in short, always remaining in contact with the rings) as an incident of centrifugal force. The web 9 affords a surface against which in the working portion of the revolution of each blade the blade wipes in sealing contact, so that in that region there can be no escape of fluid past the blades. In short the annular structure not only avoids the mentioned interference between its cams and the blades which characterizes the usual construction but it includes as a part thereof that surface (to wit, of web 9) which in a portion of the revolution of a blade coacts with the latter to seal off from each other the fluid bodies relatively ahead of and behind the blade; usually a. lining is resorted to to aflord such surface, but my construction eliminates the lining as an element distinct from the abutment and cam device. If wear occurs which would allow leakage between the blades and the abutment this may be taken up by adjustment of the screws 15, which sets the section of the annular structure having the abutment toward the other section.
To insure positive outward displacement of the blades I provide diametric holes 16 in the rotor and in these place pins 17 which reach from each blade to the diametrically opposite blade; these abut the blades, leaving each free of the other to move outwardly under centrifugal force. If any blade tends. to stick in its slot the inward camming action on the other insures its outward movement.
Figs. 6 to 11: In this form the parts 1a to 154: are all substantially the same as the cor-- respondin parts 1 to 15 in Figs 1 to 5 excepting as f0 ows: These views show that the inner surface of the annular structure need not necessarily be truly circular, as in Figs. 1 to 5. They also show the means for positively moving the blades outwardly as comprising cam surfaces 18w which may be formed in endless grooves 18 in the inner faces of the heads 2a and studs 19 on the ends of the blades arranged to wipe against said surfaces. It will be understood that the outer sides of the grooves do not oppose centrifugal force acting on the blades to hold them in sealing contact with the web 9a.
Havin thus fully described my invention what I c aim is:
1. A rotary machine of the class described comprising a cylinder having in its cylindrical wall a fluid intake and outlet a rotor revoluble in the cylinder and havlng a piston movable toward and from and normally urged toward said wall of the cylinder, an annular structure extending around the rotor within the cylinder and outwardly abutted by the piston and apertured for passa e of fluid from the intake to the outlet aroun the rotor and having an abutment opposing direct fluid flow from the inlet to the outlet and having its inner surface formed to cam the piston past the abutment, said structure being split in two sections in a plane angularly related to the diametric plane occupied by the abutment and said sections having their ends lapping and flush with each other at the inner periphery of said structure, and means to adjust the section having the abut- 1 ment bodily toward the other section.
, 2. A rotary machine of the class described comprising a cylinder having in its cylindrical wall a fluid intake and outlet, a rotor revolublein the cylinder and having a piston movable toward and from and normally urged toward said wall of the cylinder, an,
annular structure extending around the rotor within the cylinder and outwardly abutted by the piston and apertured for passage of fluid from the intake to the outlet around the rotor and having an abutment opposing direct fluid flow from the inlet to the outlet and having its inner surface formed to cam the piston past the abutment, said structure being split. in two sections in a plane angularly, related to the diametric plane occupied by the abutment and the section having the abutment having' its ends spaced from the ends of the other section, and means to adjust the section having the abutment bodily toward the other section.
3. A rotary machine of the class described comprising a cylinder having in its cylindri-' cal wall a fluid intake and outlet, a rotor revoluble in the cylinder and having a piston movable toward and from and normally urged toward said wall of the cylinder, 'an
annular structure extending around the rotor within the cylinder and outwardly abutted by the piston. and apertured for passage of fluid from the intake to the outlet around the rotor and having an abutment opposing direct fluid flow from the inlet to the outlet and having its inner surface formed to cam the piston past the abutment, said structure being split in two sections in a plane angularly related to the diametric plane occu led by the abutment and having the ends the section having the abutment beyond the axis of the cylinder relatively to the abutment and bearing against said wall, and means to adjust the section having the abutment bodily toward the other section. I
In testimony whereof I afiix my signature. ARTHUR HUDSON.
US470893A 1930-07-26 1930-07-26 Rotary pump Expired - Lifetime US1871525A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255705A (en) * 1962-10-01 1966-06-14 Eickmann Karl Rotary machine having vanes
US3307454A (en) * 1964-06-19 1967-03-07 Atlas Copco Ab Rotary piston machines and cylinder housings
US3995977A (en) * 1972-09-28 1976-12-07 Nissan Motor Co., Ltd. Vane pump housing
US4025246A (en) * 1974-08-12 1977-05-24 Michel Normandin Rotary machine with counterweights for interfitted vanes
US5102314A (en) * 1989-12-14 1992-04-07 Albert Handtmann Maschinenfabrik Gmbh & Co., Kg Vane pump for conveying pasty masses, in particular sausage meat

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255705A (en) * 1962-10-01 1966-06-14 Eickmann Karl Rotary machine having vanes
US3307454A (en) * 1964-06-19 1967-03-07 Atlas Copco Ab Rotary piston machines and cylinder housings
US3995977A (en) * 1972-09-28 1976-12-07 Nissan Motor Co., Ltd. Vane pump housing
US4025246A (en) * 1974-08-12 1977-05-24 Michel Normandin Rotary machine with counterweights for interfitted vanes
US5102314A (en) * 1989-12-14 1992-04-07 Albert Handtmann Maschinenfabrik Gmbh & Co., Kg Vane pump for conveying pasty masses, in particular sausage meat

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