US3486460A - Gaging vane construction - Google Patents
Gaging vane construction Download PDFInfo
- Publication number
- US3486460A US3486460A US762488A US3486460DA US3486460A US 3486460 A US3486460 A US 3486460A US 762488 A US762488 A US 762488A US 3486460D A US3486460D A US 3486460DA US 3486460 A US3486460 A US 3486460A
- Authority
- US
- United States
- Prior art keywords
- vane
- vanes
- recess
- gaging
- edge
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/17—Tolerance; Play; Gap
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/305—Tolerances
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49764—Method of mechanical manufacture with testing or indicating
- Y10T29/49771—Quantitative measuring or gauging
Definitions
- the device disclosed herein is a pneumatic tool which includes a housing having a pneumatic motor disposed therein.
- An output spindle is coupled to the motor and the latter is powered by pressurized air admitted thereto through suitable conduit means and valving.
- the motor includes a rotor and stationary cylinder and the former has radially slidable vanes which engage the latter.
- the vanes are novelly constructed to provide a built-in gaging feature for each of the other vanes.
- the present invention is directed to a novel vane construction for use in rotary, fluid handling devices such as pumps, motors and the like.
- the vane has gage means integrated therewith for readily determining whether other, like vanes are worn sufiiciently to warrant replacement. This construction obviates the need for any special gages Or even any special skill on the part of the one examining the vanes to determine whether or not vane replacement is needed.
- Main objects of the present invention are to provide a novel vane construction for use in rotary, fluid handling pumps, motors and the like, which construction includes gaging means integrated therewith for determining whether other ones of the vanes have Worn sufliciently to warrant replacement, and which construction may readily be provided in a number of installations with no significant cost factor, and which has no significant effect on vane performance.
- FIG. 1 is a view, partly broken away and partly in section, illustrating a pneumatic tool embodying a preferred form of the present invention
- FIG. 2 is a sectional view of FIG. 1 taken along the line 2-2 thereof;
- FIG. 3 is an enlarged perspective view of the novel vane of FIG. 1;
- FIG. 4 is a view, similar to FIG. 3, illustrating the technique of vane gaging employed with this embodiment and showing a gaged vane which has not worn sufiiciently to warrant replacement;
- FIG. 5 is a view, similar to FIG. 4, but showing a gaged vane which needs replacement;
- FIG. 6 is a perspective view illustrating a modified vane construction and the technique of vane gaging employed therewith;
- FIG. 7 is a perspective view of another modified vane construction
- FIG. 8 is a perspective view illustrating the technique of vane gaging employed with the vane of FIG. 7;
- FIG. 9 is a perspective view illustrating another modified form of vane construction.
- FIG. 10 is a perspective view illustrating the technique of vane gaging employed with the vane of FIG. 9;
- FIG. 11 is a perspective view illustrating still another modified form of vane construction
- FIG. 12 is an elevational view illustrating the technique of vane gaging employed with the view of FIG. 11;
- FIG. 13 is a perspective view illustrating yet another modified form of vane embodying the present invention.
- FIG. 14 is a perspective view illustrating the technique of vane gaging employed with the vane of FIG. 13.
- the present invention relates to a rotor vane adapted for use in a fluid handling pump, mo-. tor and the like which includes a stationary cylinder having end plate means at opposite ends thereof and a rotor journaled for rotation between said end plate means and eccentrically within said cylinder, said vane being slidably disposed in a radial slot in said rotor and comprising an elongated, generally flat body having an outer longitudie nal edge adapted to slide around the inner surface of said cylinder during rotor rotation and held in engagement therewith by centrifugal force, a pair of generally parallel transverse edges one at either end of said outer longitudinal edge and disposed in face-to-face relation with said end plate means, and an inner edge, recess means in said vane having a longitudinal dimension substantially equal to the minimum acceptable dimension of said vane measured along a predetermined transverse portion thereof, whereby the transverse dimension of said vane may be gaged by placing said vane transversely in said rece
- FIG. 1 a portable, pneumatic tool embodying the present invention is illustrated generally at 11 in FIG. 1. It should be understood, however, that this installation is exemplary only and that the vane of the present invention finds use in the general class of rotary, fluid handling devices which includes pumps and motors both portable or stationary.
- the illustrated tool 11 is seen to include a mot-or housing 13 having a pendent-type handle 15 integral therewith.
- a pneumatic motor 17 is disposed within the motor housing 13 and powers an output spindle 19 through an impact mechanism (not shown) disposed within an impact housing 21.
- the motor 17 is accessible by means of a cover plate 23 secured to the motor housing 13 by bolts 25 which also hold the impact housing 21 to the motor housing 13. Pressurized air is supplied to the motor 17 through a conduit 27 connected to the handle 15 and is controlled by suitable valving (not shown) in response to pivotal movement of a trigger 29 mounted on the handle 15.
- the motor 17 is seen to include a cylinder 31 fixed within the motor housing 13 and having a pair of end plates 33, 35, one at either end thereof.
- a rotor 37 i journaled for rotation between the end plates 33, 35 and eccentrically within the cylinder 31.
- the rotor 37 has one or more radial slots 39 which extend the final axial length thereof and in each of which is disposed a rotor vane 41.
- pressurized air is admitted to the cylinder 31 preferably through inlet openings (not shown) therein and bears against one side of the vanes 41 causing the rotor 37 to turn. Air is exhausted from the cylinder 31 through discharge openings (not shown) in the usual manner.
- vanes 41 wear, they are able to move further out of the slots 39 until eventually they lose enough stability and the flexing action causes them to break along their length. Thereafter, the broken vane parts can wedge between the rotor 37 and the cylinder 31 causing the motor to jam.
- each of the vanes 41 of the present invention is constructed so that it may be used to gage the transverse dimension of other like vanes and quickly indicates whether the other vanes need be replaced
- each of the vanes 41 comprises an elongated, flat body having an outer longitudinal edge 43, a pair of transverse edges 45, 47 and an inner longitudinal edge 49.
- the outer longitudinal edge 43 engages the inner wall of the cylinder 31 and is the edge which wears with use while the transverse edges 45, 47 confront the end plates 33, in face-to-face relation as shown in FIG. 1.
- the longitudinal dimension of each vane 41, or the distance from edge 45 to edge 47 is slightly less than the distance between end plates 33, 35 to provide a small amount of clearance and prevent excessive frictional forces during rotor rotation.
- transverse dimension of the vane 41 is reduced.
- the inner longitudinal edge 49 of each vane 41 has a re cess 51 formed therein intermediate the edges 45, 47 and having a dimension corresponding to the minimum acceptable transverse dimension for the vanes 41 measured at a predetermined point.
- each vane 41 is placed transverse in the recess 51 of another vane 41. As shown in FIG. 4, a vane 41 which has not worn sufficient to warrant replacement will not fit in the recess 51 while one which has so worn will fit as seen in FIG. 5. For most accurate results, each vane 41 is gaged at each end thereof, i.e., adjacent each transverse edge 45, 47, since if uneven wear has occurred, maximum Wear (and the minimum transverse vane dimension) will occur at one of these edges.
- each of the vanes 41 may quickly and easily be gaged either by other ones of the vanes 41 in the particular installation such as the other vanes 41 in the motor 17, or by like replacement vanes 41. No special or separate gage is necessary and no special skill is required of the person performing the gaging.
- FIG. 6 A modified form of the invention is illustrated in FIG. 6.
- the vanes 41A are provided with a recess 51A along the inner longitudinal edge adjacent each of the transverse edges 45A, 47A. Two such recesses 51A are provided so that the vane 41A is balanced.
- Each of the recesses 51A is dimensioned equal to the minimum acceptable transverse dimension of a smilarly shaped vane 41A measured long the edges 45A, 47A from edge 43A to the adjacent recess 51A.
- these vanes 41A are easily gaged, as shown in FIG. 6, by placing them in one of the recesses 51A. If the gaged vane 41A overhangs the edge 47A, it need not be replaced. If no overhang exists, then the gaged vane should be replaced.
- FIG. 7 and 8 Another modified form of the invention is seen in FIG. 7 and 8.
- the vanes 41B are substantially the same as the embodiment of FIG. 6 except that the inner edge 49B of the vanes 41B is arcuate instead of straight.
- the vanes 41B are provided with recesses 51B, one adjacent each side edge 45B, 473, respectively, and each of the recesses 51B have a longitudinal dimension substantially equal to the minimum acceptable transverse dimension of each of the vanes 41B measured along the edges 45B, 47B from edge 43B to the adjacent recess 51B.
- gaging sequence for this embodiment is shown in FIG. 8 and if, as shown, the gaged vane 41B overhangs the edge 47B, it need not be replaced. If, on the other hand, there is no overhang, the vane 41B should be replaced.
- FIGS. 9 and 10 Still another modified form of the invention is shown in FIGS. 9 and 10.
- the vane 41C has a gaging recess 510 formed in one transverse face thereof from the edge 43C to the edge 49C. Since the edge 49C is arcuate in configuration, the recess 51C is dimensioned substantially equal to the minimum acceptable transverse dimension of the vane 41C measured substantially across the midpoint thereof.
- the vanes 41C are gaged by placing them in one of the recesses 51C as shown in FIG. 10. If, as shown there, the gaged vane 41C does not fit in the recess 51C, it need not be replaced. If the gaged vane 410 does fit in the recess 51C, replacement is warranted. Were the edge 49C straight, the recess 51C preferably would be dimensioned to gage the vane 41C adjacent each transverse edge 45C, 47C.
- FIGS. 11 and 12 Yet another modified form of the invention is illus trated in FIGS. 11 and 12.
- the vanes 41D have a tapered gaging recess 51D formed in one transverse face thereof.
- the recess 51D does not extend to the outer vane edge 43D which rides around the inner edge of the cylinder 43.
- the gaging recess 51D is dimensioned to receive other ones of the vanes 41D when the transverse dimension of the latter is reduced to a level which warrants vane replacement.
- the vanes 41D are generally rectangular in configuration which facilitates gaging adjacent the transverse edges 45D, 47D.
- the gaged vane 41D is so gaged, as was done in the embodiment of FIGS. 1-5, and is replaced when its transverse dimension, adjacent either edge 45D, 47D, is such that it fits wholly in the recess 51D.
- FIGS. 13 and 14 Still another modified form of the invention is shown in FIGS. 13 and 14.
- the vane gaging recess comprises an aperture 51E which is dimensioned to allow free passage of the vane 41E therethrough when the transverse dimension thereof has fallen below the minimum acceptable level.
- a rotor vane adapted for use in a fluid handling pump, motor and the like which includes a stationary cylinder having end plate means at opposite ends there of and a rotor journaled for rotation between said end plate means and eccentrically within said cylinder, said vane being slidably disposed in a radial slot in said rotor and comprising an elongated, generally fiat body having an outer longitudinal edge adapted to slide around the inner surface of said cylinder during rotor rotation and held in engagement therewith by centrifugal force, a pair of generally parallel transverse edges one at either end of said outer longitudinal edge and disposed in faceto-face relation with said end plate means, and an inner edge, recess means in said vane having a longitudinal dimension substantially equal to the minimum acceptable dimension of said vane measured along a predetermined transverse portion thereof, whereby the transverse dimension of said vane may be gaged by placing said vane transversely in said recess means of another, like vane.
- a vane as defined in claim 1 wherein said recess means comprises a recess formed in said inner edge intermediate said transverse edges and adapted to gage the transverse dimension of said vane adjacent each of its transverse edges.
- a vane as defined in claim 1 wherein said recess means comprises a recess formed in said inner edge adjacent each of said transverse edges and adapted to gage the transverse dimension of said vane adjacent each of said transverse edges.
- a vane as defined in claim 1 wherein said recess means comprises an aperture formed therethrough.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76248868A | 1968-09-25 | 1968-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3486460A true US3486460A (en) | 1969-12-30 |
Family
ID=25065205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US762488A Expired - Lifetime US3486460A (en) | 1968-09-25 | 1968-09-25 | Gaging vane construction |
Country Status (1)
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US (1) | US3486460A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080199316A1 (en) * | 2007-02-19 | 2008-08-21 | Tse-Hua Chang | Rotor blade structure for a pneumatic device |
DE102016113392A1 (en) * | 2016-07-20 | 2018-01-25 | Airboss Air Tool Co., Ltd. | AIR MOTOR FOR A COMPRESSED AIR TOOL |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1692473A (en) * | 1928-01-04 | 1928-11-20 | Vincent S Clymer | Air compressor |
US1833026A (en) * | 1929-03-28 | 1931-11-24 | Mckenna Process Company | Method of reforming bars for rail joints |
FR729901A (en) * | 1932-01-18 | 1932-08-03 | Bourdier Freres | Device for measuring internal or external radii or diameters |
US3252212A (en) * | 1963-07-25 | 1966-05-24 | Chrysler Corp | Method of selectively matching a turbine wheel and turbine nozzle assembly |
US3354537A (en) * | 1965-12-01 | 1967-11-28 | Walter J O'connor | Renewable moineau-type pumping mechanism |
US3417664A (en) * | 1966-08-29 | 1968-12-24 | Black & Decker Mfg Co | Vane construction for pneumatic motor |
-
1968
- 1968-09-25 US US762488A patent/US3486460A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1692473A (en) * | 1928-01-04 | 1928-11-20 | Vincent S Clymer | Air compressor |
US1833026A (en) * | 1929-03-28 | 1931-11-24 | Mckenna Process Company | Method of reforming bars for rail joints |
FR729901A (en) * | 1932-01-18 | 1932-08-03 | Bourdier Freres | Device for measuring internal or external radii or diameters |
US3252212A (en) * | 1963-07-25 | 1966-05-24 | Chrysler Corp | Method of selectively matching a turbine wheel and turbine nozzle assembly |
US3354537A (en) * | 1965-12-01 | 1967-11-28 | Walter J O'connor | Renewable moineau-type pumping mechanism |
US3417664A (en) * | 1966-08-29 | 1968-12-24 | Black & Decker Mfg Co | Vane construction for pneumatic motor |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080199316A1 (en) * | 2007-02-19 | 2008-08-21 | Tse-Hua Chang | Rotor blade structure for a pneumatic device |
DE102016113392A1 (en) * | 2016-07-20 | 2018-01-25 | Airboss Air Tool Co., Ltd. | AIR MOTOR FOR A COMPRESSED AIR TOOL |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ALLIED FINANCIAL CORPORATION, 1625 EYE STREET, N.W Free format text: SECURITY INTEREST;ASSIGNOR:MASTER POWER, INC. A CORP. OF MD.;REEL/FRAME:004610/0123 Effective date: 19860513 Owner name: ALLIED VENTURE PARTNERSHIP, 1625 EYE STREET, N.W., Free format text: SECURITY INTEREST;ASSIGNOR:MASTER POWER, INC. A CORP. OF MD.;REEL/FRAME:004610/0123 Effective date: 19860513 Owner name: GROTECH PARTNERS, L.P., C/O GROTECH PARTNERS, L.P. Free format text: SECURITY INTEREST;ASSIGNOR:MASTER POWER, INC. A CORP. OF MD.;REEL/FRAME:004610/0123 Effective date: 19860513 Owner name: EQUITABLE BANK, N.A., 100 SOUTH CHARLES STREET, BA Free format text: SECURITY INTEREST;ASSIGNOR:MASTER POWER, INC. A CORP. OF MD.;REEL/FRAME:004610/0123 Effective date: 19860513 |
|
AS | Assignment |
Owner name: MASTER POWER, INC., A MD CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BLACK & DECKER INC.;REEL/FRAME:004977/0267 Effective date: 19860630 |
|
AS | Assignment |
Owner name: MASTER POWER, INC., MARYLAND Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:EQUITABLE BANK, N.A., GROTECH PARTNERS L.P., ALLIEF FINANCIAL CORPORATION, ALLIED VENTURE PARTNERSHIP;REEL/FRAME:005122/0859 Effective date: 19881108 |