US3184154A - Air compressor - Google Patents

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US3184154A
US3184154A US203884A US20388462A US3184154A US 3184154 A US3184154 A US 3184154A US 203884 A US203884 A US 203884A US 20388462 A US20388462 A US 20388462A US 3184154 A US3184154 A US 3184154A
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wedge
web
recess
housing
axis
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US203884A
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Claude H May
Keith H Rhodes
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Walker Manufacturing Co
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Walker Manufacturing Co
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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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/48—Rotary-piston pumps with non-parallel axes of movement of co-operating members
    • F04C18/54—Rotary-piston pumps with non-parallel axes of movement of co-operating members the axes being arranged otherwise than at an angle of 90 degrees

Definitions

  • This invention relates generally to air compressors and more Particularly to a relatively compact, valveless, positive displacement rotary air compressor.
  • one object of the instant invention is an improved air compressor.
  • Another object is an improved positive displacement air compressor.
  • Another object is an improved rotary air compressor.
  • Another object is an improved valveless air compressor.
  • Another object is an air compressor that reduces friction of the relatively moving components to a minimum.
  • FIGURE 1 is a cross sectional view taken through the air compressor of the instant invention shown in operative association with an electric motor;
  • FIG. 2 is a cross sectional view taken substantially along the line 2-2 of FIGURE 1;
  • FIG. 3 is a cross sectional view taken substantially along the line 3--3 of FIGURE 1;
  • FIG. 4 is an exploded perspective view of the rotatable wedge and web of the air compressor of FIGURE 1.
  • An air compressor 10 in accordance with an exemplary constructed embodiment of the instant invention, is shown in operative association with an electric motor 12.
  • the electric motor 12 is conventional in construction and has an output shaft 14 with a slot 16 therein to eifect drive of the rotatable components of the air compressor, as will be described.
  • the air compressor comprises a housing 20, for eX- ample, an aluminum die casting, having flanges 22 and 24 thereon to facilitate attachment to the motor 12 as by mounting on a pair of studs 25 and 28 on the motor 12.
  • the housing 20 has a hemispherical concave chamber 30 therein for the acceptance of a rotatable wedge 32 and web 34, both of which are preferably made from nylon.
  • the wedge 32 has a convex spherical outer peripheral surface 36 complementary to the concave spherical surface 39 of the housing 2i so as to be rotatable therein about the axis of the output shaft 14 of the motor 12.
  • the wedge 32 has a bore 49 therein for the acceptance of the output shaft 14, torque being transmitted from the shaft 14 to the wedge 32 by a drive pin 42 that is accepted in the slot 16 of the shaft 14 and in a pair of aligned apertures 44 and 4s extending radially of the bore in the wedge 32.
  • the wedge 32 has a pair of radially inwardly convergout side faces 56 and 52 that terminate in a diametrically extending circular wedge pin oil.
  • the wedge pin is secured to an inner edge portion 62 of the wedge 32 as by a pair of machine screws 64 and 66 (FIG. 2).
  • the central axis of the wedge pin 66 extends along a diameter of the concave spherical section 3% of the housing 20.
  • the wedge pin 64) forms a driving and pivotal connection between the wedge 32 and web 34.
  • the web 34 has a convex hemispherical outer surface 70 complementary to the concave spherical surface 35) of the housing 20 so as to be rotatable therein.
  • the web 34 has a diametrically extending circular bore 72 for the acceptance of the wedge pin 60 and a pair of planar faces 74 and 76 complementary to the faces 54) and 52 on the Wedge 32, respectively.
  • the web 34 has a pair of radially aligned bores 80 and 82 extending at right angles to and in the same plane as the bore 72 for the wedge pin 60, for the acceptance of a pair of web pins 84 and 86, respectively.
  • the web pins 84 and 86 extend through a pair of aligned bearings 88 and W in a spider 92.
  • the spider 92 supports the web 34 for rotati n about a spider pin 94.
  • the web pins 84 and 86 are secured in the bearings 88 and 90, respectively, by a pair of spring retainers 96 and 98.
  • the spider pin 94 is secured to the spider 92 as by brazing, so as to be rotatable therewith in a bearing tilt) that is supported in a bearing block 102.
  • the spider pin 94 is set at a predetermined angle relative to the axis of the motor shaft 14.
  • the bearing block 102 is supported by a cover plate 104 that is secured to the housing 26 as by a plurality of machine screws 106.
  • the housing 26 is provided With an inlet aperture 116) and an outlet aperture 112.
  • an inlet aperture 116) and an outlet aperture 112.
  • rotation of the wedge 32 and web 34 due to rotation of the motor shaft 14, effects opening and closing of What may be termed a compression chamber on opposite sides of the wedge 32, air being inducted through the inlet aperture 112, compressed, and then through the outlet aperture 110.
  • the air compressor of the instant invention is relatively simple in construction, having only three moving parts, namely, the wedge 32, web 34, and spider 92.
  • the wedge 32 and web 34 are designed so as to be easily molded from, for example, nylon, thereby simplifying manufacture and assembly of the air compressor 10. Further, the use of nylon for the wedge 32 and web 34 reduces noise and vibration of the air compressor 10 to a minimum. Also, elimination of conventional intake .and exhaust valves, which are inherently subject to failure, materially prolongs the life expectancy of the air compressor 10.
  • a rotary positive displacement air compressor comprising a housing having a concave hemispherical recess therein, a wedge-shaped member having a convex hemispherical surface complementary to the concave recess in said housing so as to be rotatable therein, said wedge having a pair of radially convergent opposite side faces,
  • a web having a convex hemispherical surface complementary to the recess in said housing and a diametrically extending circular recess for the acceptance of said wedge pin, said web having a pair of angularly related radially convergent inner faces complementary to the side faces of the wedge and of substantially greater included angle,
  • a spider pivotally secured to said web so as to be rotatable relative thereto about an axis extending normally to the axis of said cylindrical recess in the web and coplanar therewith, and
  • a rotary positive displacement air compressor comprising a housing having a concave hemispherical recess therein,
  • a Wedge-shaped member having t a convex hemispherical surface complementary to the concave recess in said housing so as to be rotatable therein, said wedge having a pair of angularly related radially convergent opposite side faces, 1
  • a web having a convex hemispherical surface complementary to the recess in said housing and a diametrically extending circular recess for the acceptance of said wedge pin in pivotal relationship, said web having a pair of angularly related radially convergent faces complementary to the side faces of the wedge and of relatively greater included angle,
  • a spider pivotally secured to said web so as to be rotatable relative thereto about an axis extending normally to the axis of the cylindrical recess in the web and coplanar therewith, and
  • said housing having a pair of apertures communicating with a compression chamber defined by the concave recess in said housing, said web and said wedge whereby rotation of said wedge, said web, and said spider effects a variation in the volume of said compression chamber to effect compression of the air therein.
  • a rotary positive displacement air compressor for 59 use with a prime mover having a drive shaft said air compressor comprising a housing having a' concave hemispherical recess and a bore extending radially of the recess for the acceptance of the prime mover drive shaft,
  • a wedge-shaped member having a convex hemispherical surface complementary to the concave recess in said'housing so as to be rotatable about the axis of the bore therein, said wedge having a pair of angularly related radially convergent opposite side faces with a bore therebetween for the acceptance of the prime a mover drive shaft,
  • a web having a convex; hemispherical surface complementary to the recess in said housing and a diametrically extending circular recess for the acceptance of said wedge pin in pivotal relationship, said web having a pair of angularly related radially convergent faces complementary to the side faces of the wedge and of relatively greater included angle,
  • a spider pivotally secured to said web so as to be rotatable relative thereto about an axis extending normally to the axis of the cylindrical recess in the web and coplanar therewith, and
  • said housing having a pair of apertures communicating with a com- I pression chamber defined by the concave recess in said housing, said web and said wedge whereby rotation of the prime mover drive shaft effects rotation of said wedge, said web, and said spider thereby to effect a variationtin the volume of said compression chamber and com pression of the air therein.

Description

2 Sheets-Sheet 1 May 18, 1965 c. H. MAY ETAL AIR COMPRESSOR Filed June 20, 1962 MW X 1 Way 7 M M w? u 1 f 03 a /a5 e r J) J is d C A 4 0 B y y l M 4/ M 1 A M y 4 a fi/ fi W4 Mud/7 0/ 7 [J m Z MWWSk m m, f 1 :Z My i. x .1? v j Filed June 20, 1962 C. H. MAY ETAL AIR COMPRESSOR 2 Sheets-Sheet 2 INVENTORS. 6/42/19 M Ma 1212 M 27/?0 661 United States Patent 3,184,154 AIR CUMPRESSOR Claude H. May and Keith H. Rhodes, Racine, Wis, assigns-rs to Walker Manufacturing Qompany, Racine, Win, a corporation of Delaware Filed June 20, 1952, Ser. No. 203,384 3 Claims. (Cl. 230-137) This invention relates generally to air compressors and more Particularly to a relatively compact, valveless, positive displacement rotary air compressor.
Accordingly, one object of the instant invention is an improved air compressor.
Another object is an improved positive displacement air compressor.
Another object is an improved rotary air compressor.
Another object is an improved valveless air compressor.
Another object is an air compressor that reduces friction of the relatively moving components to a minimum.
Other objects and advantages of the instant invention will be apparent in the following specification, claims and drawings, wherein:
FIGURE 1 is a cross sectional view taken through the air compressor of the instant invention shown in operative association with an electric motor;
FIG. 2 is a cross sectional view taken substantially along the line 2-2 of FIGURE 1;
FIG. 3 is a cross sectional view taken substantially along the line 3--3 of FIGURE 1; and
FIG. 4 is an exploded perspective view of the rotatable wedge and web of the air compressor of FIGURE 1.
An air compressor 10, in accordance with an exemplary constructed embodiment of the instant invention, is shown in operative association with an electric motor 12. The electric motor 12 is conventional in construction and has an output shaft 14 with a slot 16 therein to eifect drive of the rotatable components of the air compressor, as will be described.
The air compressor comprises a housing 20, for eX- ample, an aluminum die casting, having flanges 22 and 24 thereon to facilitate attachment to the motor 12 as by mounting on a pair of studs 25 and 28 on the motor 12. The housing 20 has a hemispherical concave chamber 30 therein for the acceptance of a rotatable wedge 32 and web 34, both of which are preferably made from nylon.
The wedge 32 has a convex spherical outer peripheral surface 36 complementary to the concave spherical surface 39 of the housing 2i so as to be rotatable therein about the axis of the output shaft 14 of the motor 12. The wedge 32 has a bore 49 therein for the acceptance of the output shaft 14, torque being transmitted from the shaft 14 to the wedge 32 by a drive pin 42 that is accepted in the slot 16 of the shaft 14 and in a pair of aligned apertures 44 and 4s extending radially of the bore in the wedge 32.
The wedge 32 has a pair of radially inwardly convergout side faces 56 and 52 that terminate in a diametrically extending circular wedge pin oil. The wedge pin is secured to an inner edge portion 62 of the wedge 32 as by a pair of machine screws 64 and 66 (FIG. 2). The central axis of the wedge pin 66 extends along a diameter of the concave spherical section 3% of the housing 20. The wedge pin 64) forms a driving and pivotal connection between the wedge 32 and web 34.
The web 34 has a convex hemispherical outer surface 70 complementary to the concave spherical surface 35) of the housing 20 so as to be rotatable therein. The web 34 has a diametrically extending circular bore 72 for the acceptance of the wedge pin 60 and a pair of planar faces 74 and 76 complementary to the faces 54) and 52 on the Wedge 32, respectively.
The web 34 has a pair of radially aligned bores 80 and 82 extending at right angles to and in the same plane as the bore 72 for the wedge pin 60, for the acceptance of a pair of web pins 84 and 86, respectively. The web pins 84 and 86 extend through a pair of aligned bearings 88 and W in a spider 92. The spider 92 supports the web 34 for rotati n about a spider pin 94. The web pins 84 and 86 are secured in the bearings 88 and 90, respectively, by a pair of spring retainers 96 and 98. The spider pin 94 is secured to the spider 92 as by brazing, so as to be rotatable therewith in a bearing tilt) that is supported in a bearing block 102.
The spider pin 94 is set at a predetermined angle relative to the axis of the motor shaft 14. The bearing block 102 is supported by a cover plate 104 that is secured to the housing 26 as by a plurality of machine screws 106.
As best seen in FIG. 2 of the drawings, the housing 26 is provided With an inlet aperture 116) and an outlet aperture 112. Thus, rotation of the wedge 32 and web 34, due to rotation of the motor shaft 14, effects opening and closing of What may be termed a compression chamber on opposite sides of the wedge 32, air being inducted through the inlet aperture 112, compressed, and then through the outlet aperture 110.
From the foregoing description, it should be apparent that the air compressor of the instant invention is relatively simple in construction, having only three moving parts, namely, the wedge 32, web 34, and spider 92. The wedge 32 and web 34 are designed so as to be easily molded from, for example, nylon, thereby simplifying manufacture and assembly of the air compressor 10. Further, the use of nylon for the wedge 32 and web 34 reduces noise and vibration of the air compressor 10 to a minimum. Also, elimination of conventional intake .and exhaust valves, which are inherently subject to failure, materially prolongs the life expectancy of the air compressor 10.
It is to be understood that the specific construction of the improved air compressor herein disclosed and described is presented for the purpose of explanation and illustration and is not intended to indicate limits of the invention, the scope of which is defined by the following claims.
What is claimed is:
1. A rotary positive displacement air compressor comprising a housing having a concave hemispherical recess therein, a wedge-shaped member having a convex hemispherical surface complementary to the concave recess in said housing so as to be rotatable therein, said wedge having a pair of radially convergent opposite side faces,
a wedge pin secured to said wedge extending diametrically of the recess in said housing,
a web having a convex hemispherical surface complementary to the recess in said housing and a diametrically extending circular recess for the acceptance of said wedge pin, said web having a pair of angularly related radially convergent inner faces complementary to the side faces of the wedge and of substantially greater included angle,
a spider pivotally secured to said web so as to be rotatable relative thereto about an axis extending normally to the axis of said cylindrical recess in the web and coplanar therewith, and
means supporting said spider for rotation about an axis said wedge, said housing having a pair of apertures therein, communicating with a compression chamber defined by the concave recess in said housing, said web and said wedge whereby rotation of said wedge, said web, and said spider effects a variation in the volume of said compression chamber to effect compression of the air therein. V V
2. A rotary positive displacement air compressor comprising a housing having a concave hemispherical recess therein,
a Wedge-shaped member having t a convex hemispherical surface complementary to the concave recess in said housing so as to be rotatable therein, said wedge having a pair of angularly related radially convergent opposite side faces, 1
a generally cylindrical wedge pin secured to said Wedge extending diametrically thereof and of the recess in said housing,
a web having a convex hemispherical surface complementary to the recess in said housing and a diametrically extending circular recess for the acceptance of said wedge pin in pivotal relationship, said web having a pair of angularly related radially convergent faces complementary to the side faces of the wedge and of relatively greater included angle,
a spider pivotally secured to said web so as to be rotatable relative thereto about an axis extending normally to the axis of the cylindrical recess in the web and coplanar therewith, and
means for supporting said spider for rotation about an axis angularly related to the axis of rotation of said wedge and coplanar therewith, said housing having a pair of apertures communicating with a compression chamber defined by the concave recess in said housing, said web and said wedge whereby rotation of said wedge, said web, and said spider effects a variation in the volume of said compression chamber to effect compression of the air therein.
angularly related to the axis 'of rotation of 7 3. A rotary positive displacement air compressor for 59 use with a prime mover having a drive shaft, said air compressor comprising a housing having a' concave hemispherical recess and a bore extending radially of the recess for the acceptance of the prime mover drive shaft,
a wedge-shaped member having a convex hemispherical surface complementary to the concave recess in said'housing so as to be rotatable about the axis of the bore therein, said wedge having a pair of angularly related radially convergent opposite side faces with a bore therebetween for the acceptance of the prime a mover drive shaft,
a generally cylindrical wedge pin secured to said wedge along a diameter normal to the bore therein,
a web having a convex; hemispherical surface complementary to the recess in said housing and a diametrically extending circular recess for the acceptance of said wedge pin in pivotal relationship, said web having a pair of angularly related radially convergent faces complementary to the side faces of the wedge and of relatively greater included angle,
a spider pivotally secured to said web so as to be rotatable relative thereto about an axis extending normally to the axis of the cylindrical recess in the web and coplanar therewith, and
means for supporting said spider for rotation about an axis angularly related to the axis of rotation of said wedge and coplanar therewith, said housing having a pair of apertures communicating with a com- I pression chamber defined by the concave recess in said housing, said web and said wedge whereby rotation of the prime mover drive shaft effects rotation of said wedge, said web, and said spider thereby to effect a variationtin the volume of said compression chamber and com pression of the air therein.
References Cited by the Examiner 972,337 10/50 France.
487,248 12/29 Germany.
JOSEPH H; BRANSON, 1a., Primary Examiner,
LAURENCE V. EFNER, Examiner,

Claims (1)

1. A ROTARY POSITIVE DISPLACEMENT AIR COMPRESSOR COMPRISING A HOUSING HAVING A CONCAVE HEMISPHERICAL RECESS THEREIN, A WEDGE-SHAPED MEMBER HAVING A CONVEX HEMISPHERICAL RECESS THEREIN, THE CONCAVE RECESS IN SAID HOUSING SO AS TO BE ROTATABLE THEREIN, SAID WEDGE HAVING A PAIR OF RADIALLY CONVERGENT OPPOSITE SIDE FACES, A WEDGE PIN SECURED TO SAID WEDGE EXTENDING DIAMETRICCALLY OF THE RECESS IN SAID HOUSING, A WEB HAVING A CONVEX HEMISPHERICAL SURFACE COMPLEMENTARY TO THE RECESS IN SAID HOUSING AND A DIAMETRICALLY EXTENDING CIRCULAR RECESS FOR THE ACCEPTANCE OF SAID WEDGE PIN, SAID WEB HAVING A PAIR OF ANGULARLY RELATED RADIALLY CONVERGENT INNER FACES COMPLEMENTARY TO THE SIDE FACES OF THE WEDGE AND OF SUBSTANTIALLY GREATER INCLUDED ANGLE A SPIDER PIVOTALLY SECURED TO SAID WEB SO AS TO BE ROTATABLE RELATIVE THERETO ABOUT AN AXIS EXTENDING NORMALLY TO THE AXIS OF SAID CYLINDRICAL RECESS IN THE WEB AND COPLANAR THEREWITH, AND MEANS SUPPORTING SAID SPIDER FOR ROTATION ABOUT AN AXIS ANGULARLY RELATED TO THE AXIS OF ROTATION ABOUT AN WEDGE, SAID HOUSING HAVING A PAIR OF APERTURES THEREIN COMMUNICATING WITH A COMPRESSION CHAMBER DEFINED BY THE CONCAVE RECESS IN SAID HOUSING, SAID WEB AND SAID WEDGE WHEREBY ROTATION OF SAID WEDGE, SAID WEB, AND SAID SPIDER EFFECTS A VARIATION IN THE SAME VOLUME OF SAID COMPRESSION CHAMBER TO EFFECT COMPRESSION OF THE AIR THEREIN.
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2519911A1 (en) * 1974-07-11 1976-02-05 Willimczik Wolfhart Two stroke swash plate rotating piston engine - has spherical rotor in hollow spherical external housing
DE3339062A1 (en) * 1983-10-28 1985-05-23 Rolf 2121 Brietlingen Sydow Machine or engine with a stationary spherical casing
US4519756A (en) * 1983-09-30 1985-05-28 Fenton John W Constant displacement turbine with vane which pivots and rotates
EP0381639A2 (en) * 1989-01-09 1990-08-08 3D International A/S Power conversion machine provided with pistons rotating in a spherical housing
US5404849A (en) * 1991-12-11 1995-04-11 Fenton; John W. Spherical engine
WO1998016723A1 (en) * 1996-10-16 1998-04-23 Vladeta Filipovic Hemispherical engine
US20090185937A1 (en) * 2006-06-06 2009-07-23 Alexandr Vladimirovich Didin Positive-displacement rotary machine
US20090185925A1 (en) * 2006-07-10 2009-07-23 Alexandr Vladimirovich Didin Method of operation of a spherical positive displacement rotary machine and devices for carrying out said method
JP2013538312A (en) * 2010-08-26 2013-10-10 シーアン ジェンガン エンバイロンメンタル テクノロジー シーオー．， エルティーディー Automatic hinge seal gap correction mechanism for spherical compressors.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1150430A (en) * 1914-07-28 1915-08-17 Carl Heinrich Otto Hamann Machine with rotatory and oscillating pistons.
DE487248C (en) * 1926-12-14 1929-12-06 Neufeldt & Kuhnke G M B H Ball force machine or machine with rotating and oscillating piston and two axes of rotation that are inclined in the housing
FR972337A (en) * 1941-02-04 1951-01-29 Pump - compressor - fluid distributor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1150430A (en) * 1914-07-28 1915-08-17 Carl Heinrich Otto Hamann Machine with rotatory and oscillating pistons.
DE487248C (en) * 1926-12-14 1929-12-06 Neufeldt & Kuhnke G M B H Ball force machine or machine with rotating and oscillating piston and two axes of rotation that are inclined in the housing
FR972337A (en) * 1941-02-04 1951-01-29 Pump - compressor - fluid distributor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2519911A1 (en) * 1974-07-11 1976-02-05 Willimczik Wolfhart Two stroke swash plate rotating piston engine - has spherical rotor in hollow spherical external housing
US4519756A (en) * 1983-09-30 1985-05-28 Fenton John W Constant displacement turbine with vane which pivots and rotates
DE3339062A1 (en) * 1983-10-28 1985-05-23 Rolf 2121 Brietlingen Sydow Machine or engine with a stationary spherical casing
EP0381639A2 (en) * 1989-01-09 1990-08-08 3D International A/S Power conversion machine provided with pistons rotating in a spherical housing
EP0381639A3 (en) * 1989-01-09 1991-01-09 3D International A/S Power conversion machine provided with pistons rotating in a spherical housing
US5404849A (en) * 1991-12-11 1995-04-11 Fenton; John W. Spherical engine
WO1998016723A1 (en) * 1996-10-16 1998-04-23 Vladeta Filipovic Hemispherical engine
US20090185937A1 (en) * 2006-06-06 2009-07-23 Alexandr Vladimirovich Didin Positive-displacement rotary machine
US8202070B2 (en) 2006-06-06 2012-06-19 Alexandr Vladimirovich Didin Spherical positive displacement rotary machine
US20090185925A1 (en) * 2006-07-10 2009-07-23 Alexandr Vladimirovich Didin Method of operation of a spherical positive displacement rotary machine and devices for carrying out said method
US8152504B2 (en) * 2006-07-10 2012-04-10 Alexandr Vladimirovich Didin Method of operation of a spherical positive displacement rotary machine and devices for carrying out said method
JP2013538312A (en) * 2010-08-26 2013-10-10 シーアン ジェンガン エンバイロンメンタル テクノロジー シーオー．， エルティーディー Automatic hinge seal gap correction mechanism for spherical compressors.

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