EP1272737B1 - Luftmotor - Google Patents
Luftmotor Download PDFInfo
- Publication number
- EP1272737B1 EP1272737B1 EP01931593A EP01931593A EP1272737B1 EP 1272737 B1 EP1272737 B1 EP 1272737B1 EP 01931593 A EP01931593 A EP 01931593A EP 01931593 A EP01931593 A EP 01931593A EP 1272737 B1 EP1272737 B1 EP 1272737B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- motor according
- rotor
- motor
- rotor cover
- 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
- 238000007789 sealing Methods 0.000 claims description 10
- 230000001133 acceleration Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000446313 Lamella Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
-
- 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
- F01C1/00—Rotary-piston machines or engines
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/34—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members
- F01C1/344—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F01C1/3446—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 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 group F01C1/08 or F01C1/22 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 more than one line or surface
-
- 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
- F01C13/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01C13/02—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby for driving hand-held tools or the like
Definitions
- the invention relates to an air motor, in particular for a screwdriver, with the features of the preamble of claim 1.
- an air motor which is installed in a screwdriver.
- the Screwdriver has a compressed air connection to the air inlet of the air motor To be able to supply compressed air.
- the compressed air passes through the air inlet in one of the Chambers between the engine cylinder and air rotor and acts on one of the fins. As a result, the air rotor is rotated.
- Another chamber gets in touch with the air inlet, while the already pressurized with compressed air chamber via a corresponding Air outlet releases the compressed air to the environment again.
- the known air motor has two mutually opposite to the air rotor chambers on.
- Such an air motor has a relatively high idle speed and overall performance on. Partly, the power or the speed of such an air motor through Exhaust air throttling measures are reduced.
- EP 052162 shows a rotary piston machine with sliding slides for operation with expanding Gases, this rotary engine being the features of the generic term of claim 1.
- This rotary engine is pressurized by gases converted directly into a rotating movement, the pressure always being exactly in tangential Direction to the rotary motion to act.
- a cover plate openings are arranged, via the gas enters or exits. The openings are arranged at the ends of a drum, to allow the tangential supply of the gas.
- FR 2762879 shows a compressor with a cylindrical rotating body as a rotor. By doing Rotor are inclined to the radial direction a number of fins in corresponding grooves adjustable. In corresponding chambers upon rotation of the rotor becomes a fluid compressed and discharged via outlets to the outside.
- the invention is in view of EP052162 the object of an air motor of to improve the above-mentioned type to the effect that at the same time good Efficiency of the engine a more uniform acceleration, a reduced Sound level and less wear while reducing the exhaust air throttle measures is possible.
- the three-chamber engine according to the invention results in a lower engine speed and at the same time a more uniform acceleration capacity due to the three chambers.
- a two-chamber engine results in an increase in torque and also due to reduced speed, a reduced sound level. Due to the lower engine speed when screwing are consuming Zu Kunststoff- and Abluftdrosselform especially with non-disconnecting screw no longer necessary.
- an oil-free running of the engine is rather possible due to the lower speed as in the known one-chamber and two-chamber engines.
- the construction will continue simplified on the outside of each triangle side at least one air inlet and an air outlet passage adjacent to each other in the longitudinal direction of the air motor run. As a result, it is not necessary, for example, corresponding channels in the housing form or provide air inlet or outlet only at the ends of the housing.
- a selection of the direction of rotation of the air rotor takes place in that the rear and / or Front rotor cover for alternative supply of air inlet and outlet channel with Air are rotatable relative to the engine cylinder.
- the corresponding holes in the rotor lid with the air inlet ducts for example, to clockwise rotation or communicating with the air outlet ducts, for example to turn the air rotor counterclockwise.
- the hole in the rotor lid is decided which of these channels to the air inlet or air outlet is used.
- the interior of the engine cylinder is a cross-section of an isosceles Triangle, wherein the axis of rotation of the air rotor, in particular at the intersection of the three Middle perpendicular of the corresponding triangle sides is arranged.
- the Triangular sides of the engine cylinder at least in the region of the respective perpendicular bisector be convex curved.
- the curvature is essentially in agreement with the curvature of the Air rotor match.
- the slats in a simple manner along an inner surface can lead the engine cylinder with their free ends, such an inner surface of the motor cylinder preferably convexly curved at least in the region of the triangular points be. In this way, the free ends of the slats slide along without difficulty the inner surface in particular in the region of the triangle peaks.
- the inner surface of the engine cylinder in the area the triangular points have the same radii of curvature.
- a simple production for air inlet and air outlet channel results, if, for example both channels are formed in a channel body of the engine cylinder.
- the outside diameter should be of the engine cylinder lie on such a circle that the entire engine cylinder in a screwdriver with a receptacle with a correspondingly larger diameter can be used.
- Diameter of the circular line is substantially smaller than a diameter of a front and / or rear rotor lid.
- These rotor lids seal the chambers in Longitudinal direction of the air motor lying front and rear ends and serve simultaneously for supporting a shaft formed with the air rotor mostly in one piece.
- An advantageous production of the air motor can result from the fact that the channel body extending between the front and rear rotor lids over the entire length of the engine cylinder extend.
- An air supply to the air inlets for example, from the radial direction relative to Engine cylinder done.
- the rear rotor covers have at least air inlets for supplying air to the air inlet ducts.
- Air inlet be formed as the rotor cover passing through hole.
- the cross section of the bore and / or air inlet duct may have different shapes to have. In the simplest case, such a cross section may be circular.
- the outlet recess may be opened radially outward via an outlet gap.
- the outlet recess can when connected to an exhaust duct at one of its ends with its other end in it a region between triangular tip and channel body extends.
- outlet recess in conjunction with a corresponding assigned Outlet channel in the direction of rotation of the air rotor downstream chamber also to dissipate air into the environment.
- the outlet recess is sufficiently large in this context, if an inner radius the outlet recess is substantially equal to an outer radius of the air motor.
- air inlet and outlet air duct on the inside of the engine cylinder extending over part of their respective length have in the direction of air rotor open slots separated by a sealing ridge are, with the air rotor in sealing contact.
- the air rotor for example, four corresponding longitudinal slots and arranged therein Have lamellas. However, for a more even acceleration of the air motor more lamellae and corresponding longitudinal slots desirable, such as five, six, seven, eight or more longitudinal slots with corresponding slats. For one Even running of the air rotor without corresponding imbalance, it is still from Advantage, if the longitudinal slots with the corresponding blades in the circumferential direction equal are spaced.
- the chambers in one to be filled with air and one of air To be able to subdivide emptying sub-chamber safely, one of the length of the outlet recess circumferentially assigned center angle greater than an angle between be two adjacent lamellae.
- each one compression spring between two diametrically opposed slats can be arranged.
- the Longitudinal slits in the air rotor just in the areas through the Druck Kunststoffaus traditions traditions Compressed air is supplied, in which the corresponding fins in the area of the chambers off pushed out of the air rotor.
- the compressed air recesses can be equally spaced from each other in the circumferential direction of the Center hole arranged and / or laterally open to the central bore was. About the side Opening to the center hole can easily the compressed air supply through the center hole done to the compressed air recesses.
- an air distribution device for supplying compressed air to the air inlets of the rear rotor cover at the be arranged the air rotor opposite side.
- the air distribution device can be disc-shaped are formed and three of a central air supply bore radially outward have extending air distribution grooves on the side facing the rear rotor cover side.
- the Luftver discouragesnuten in the circumferential direction equally spaced from each other and depending on the relative position to the rear rotor cover be associated with a group of air inlets for Druck Kunststoffbeetzschlagung.
- the Air outlets pass through the rear rotor cover to the chambers in the axial direction Vent.
- the rear rotor cover in two positions relative to the engine cylinder for Leftward and clockwise rotation of the air motor to be stored latched. It should be noted at this point that, of course, instead of a rotation of the rear rotor cover relative to the engine cylinder It is also possible, front rotor cover and engine cylinder relative to a rotationally fixed to rotate arranged rear rotor lid and so between left and right turn to switch the air motor.
- the adjustment can take place in that radial outward from the rear rotor lid or from the front rotor lid or from Engine cylinder protrudes a shift button. It is also possible that the detent to Definition of the two positions for the left and right rotation of the air motor by means of Shift button is done.
- the air motor may have a motor housing, wherein the motor housing an air supply passage communicating with the air supply bore and a bearing the output shaft of the air rotor rotor bore can have.
- a pin between be arranged front rotor cover and engine cylinder To record the reaction force of the engine cylinder, a pin between be arranged front rotor cover and engine cylinder.
- the reaction moment of the front Rotor cover for example, by a Schersplint or the like to the Motor housing to be transferred.
- FIG. 1 shows a longitudinal section through an air motor 1 according to the invention.
- This has an output shaft 51 extending concentrically to a rotation axis 16, which is integrally formed with an air rotor 3, see Figure 5.
- the air motor 1 has in Area of the output shaft 51 a rear rotor cover 31 and in the direction of rotation axis sixteenth spaced from this one front rotor lid 32. Between the two rotor covers an engine cylinder 2 is arranged.
- a disc-shaped Air distribution 61 arranged at one end 9, opposite to the Beerverteil owned 61, the rear rotor lid 31 outlet column 37, which in radial Open to the outside. These are between the rear rotor lid 31 and arranged the engine cylinder 2.
- Rotor cylinder 2, rear and front rotor cover 31, 32 have a substantially circular cross section.
- the engine cylinder 2 has in its longitudinal direction 4 and in the longitudinal direction of the air motor first extending side edges 52, 53, see also Figure 5, which is inclined radially inward extend.
- the side flanks 52, 53 separate channel bodies 26 and triangular tips 13, 14, 15, see also Figure 6.
- the triangular tips 13, 14, 15 form the corresponding peaks a cross-sectionally substantially triangular interior of the engine cylinder. 2
- the substantially circular cross section of the motor cylinder 2 results from corresponding triangular sides 19, 20, 21, see Figures 5 and 6, on the outer sides thereof 23 projecting channel body 26, wherein both the triangular tips 13, 14, 15 and the Channel body 26 are rounded on their outer surfaces and along a circular line 28, see Figure 6, run.
- This circle 28 has a diameter slightly less than Diameter 29 of Figure 1 on.
- Air distribution device 61 Opposite to the engine cylinder 2 is laterally adjacent to the rear rotor cover 31 a Air distribution device 61 is arranged. This has approximately in the middle of an air supply hole 65 on. In this partially protrudes from the air rotor 3 protruding stub shaft.
- the air supply bore 65 is provided with an air supply passage 66 in the motor housing 64 connected.
- three air distribution grooves 62 from, see also Figure 3, with corresponding air inlets 10, 11 depending on relative rotational position of the rear rotor cover 31 to the air distribution device 61 in conjunction are.
- the rear rotor cover 31 has on its the Lucasverteiler issued 61 zu putden Side a concentric to the axis of rotation 16 arranged recess in which a ball bearing 56 is arranged for rotatably supporting the stub shaft of the air motor 3.
- a ball bearing 56 is arranged for rotatably supporting the stub shaft of the air motor 3.
- the front rotor cover 32 has analogous to the rear rotor cover 31 in its from the air rotor 3 side facing a concentric with the axis of rotation 16 arranged recess in which also a ball bearing 55 is arranged. Through this, the output shaft extends 51 of the air motor 3rd
- Rear and front rotor cover, engine cylinder with air rotor and air distribution device 61 are arranged in the motor housing 64, which in the illustrated embodiment is formed in two parts.
- a cup-shaped part 68 has in its bottom the air supply duct 66 on and on its free ends is a cover-like part 69 of the motor housing 64 screwed.
- the rear rotor cover 31 is connected to a switch button 63, which is from the rear Rotor cover radially outwardly passed through the motor housing 64 and from the Outside is operable.
- the switch button 63 can be locked in two positions, wherein a position of the rear rotor cover 31 of a left turn, see Figure 5, and the another position of a clockwise rotation, see Figure 7, the air motor 3 corresponds.
- FIG. 2 shows a view of an inner side of the rear rotor cover 31 from the direction of the Motor cylinder 2 shown in Figure 1.
- various holes 34 are arranged as air inlets 33. All in all six holes 34 are provided, of which three in each case with a corresponding rotation of the front rotor cover 31 relative to the engine cylinder 2, an air rotor 3, see Figure 5, drive in clockwise or counterclockwise direction by compressed air supply. Between the holes 34 outlet recesses 36 are arranged as air outlets 35.
- the Outlet recesses 36 are formed part-circular ring and extend over a Length 47 in the circumferential direction 48, which corresponds to a center angle 49. Radially to Outside are outlet recesses 36 via outlet gap 37, see also Figure 1, with the environment of the air motor 1 in conjunction.
- An inner radius 41 of the outlet recess 36 corresponds essentially to an outer radius 42, see Figure 5, of the air motor 3.
- the diameter 30 of both the rear and front rotor lid 31, 32 is substantially equal to the diameter 29 of the engine cylinder Second
- FIG. 3 a front view of the air distribution device 61 is seen from the direction of the rear Rotor cover 31 shown in Figure 1. Concentric with the axis of rotation 16 respectively in the disk-shaped air distribution device 61, the air supply hole 65 is arranged. Of this extend in the circumferential direction 60 equally spaced three air distribution grooves 62 recessed in the visible surface of the air distribution device 61 of FIG 3 are arranged and laterally open in the direction of air supply bore 65, see also FIG. 1
- FIG. 4 shows an inside view of the engine cylinder 2 in the region of a channel body 26 partially shown.
- Air inlet channel 24 and an air outlet channel 25 are parallel and spaced from each other in the channel body, see also FIGS. 5 and 6.
- the two channels 24, 25 via slots 54, 55 in the direction of air rotor 3 open see also Figures 5 and 6.
- the slots 44, 45 extend approximately central to the channels 24, 25 over part of their length.
- FIG. 5 shows a section along the line V-V from FIG. Same parts are with the same reference numerals and are only partially mentioned.
- FIG. 5 shows the essentially triangular cross-section of the engine cylinder 2 recognizable, which is an isosceles triangle with triangle sides 19, 20, 21 and corresponding triangular tips 13, 14 and 15, see also Figure 6.
- Die The axis of rotation 16 extends through an intersection 17 of mid-perpendiculars 18 of the triangle sides 19, 20, 21.
- the channel body 26 In the region of the perpendicular bisector, see FIG. 6, are on outer sides 23 the triangular sides 19, 20, 21, the channel body 26, each with an air inlet channel 24 and an air outlet channel 25 is arranged. These are over their slots 44, 45 in the direction Air rotor 3 opened. Between the channels 24, 25 each have a sealing ridge 46 is arranged, with the air rotor 3 in sealing contact.
- an air inlet 10 see Figure 2
- the air outlet channels 25 are in communication with the outlet recesses 36 as a corresponding air outlet 12, see Figure 2.
- the outlet recesses 36 are included arranged with one end 38 in the region of the mouth of the air outlet channel 25 and extend to their other end 39 in the area of the corresponding chambers 7, 8, 9.
- the outer radius 42 of the air motor 3 is substantially the inner radius 41, see Figure 2, the outlet recesses 36 is.
- the air rotor 3 has eight longitudinal slots 5, in which a corresponding number of slats 6 are guided in the radial direction.
- Two adjacent lamellae 6 are each under an angle 50 to each other, which is smaller than the center angle 49, the length 47 of the outlet recess 36 is assigned, see Figure 2.
- FIG. 5 as an alternative to the compression springs 57 according to FIG. 7, the rear rotor cover 31 formed with the compressed air recesses 59, the partially offset radially inwards to the extended slats 6 in the longitudinal slots 5 are visible. These serve for Compressed air feed into the slots and thus to extend the slats.
- a radial clearance between air rotor and engine cylinder is as small as possible.
- An orientation of the engine cylinder is taken over by the air rotor itself and an external center, z, B. in a housing, due to dimensional tolerances leads to overdetermination of the engine cylinder installation position.
- FIG. 6 a section analogous to FIG. 5 is shown only by the engine cylinder 2. On the Description in connection with the preceding figures is made.
- FIG. 6 shows, in particular, how mid-perpendiculars 18 of the triangle sides 19, 20, 21 intersect at a point 17 which corresponds to the axis of rotation 16.
- the area of the corresponding bases of the mid-perpendiculars 18 are the triangle sides on the inside 22 of the engine cylinder 2 convexly curved, this curvature in particular in the region of the corresponding sealing webs 46 of the outer curvature of the air rotor 3 corresponds.
- the outer contour or outer surface 27 of the motor cylinder 2 extends in the region of the triangle tips 13, 14, 15 and the corresponding channel body 26 curved along a Circle line 28 with diameter 29, see Figure 1.
- FIG. 7 shows a section analogous to FIG. 5 for a clockwise rotation of the air motor 3.
- the same parts are provided with the same reference numerals and it is on the description refer to Figure 5.
- FIG. 7 differs from FIG. 5 essentially only in that in the longitudinal slots 5 springs 57 arranged to pressurize the slats radially outward are and that the rear rotor cover 31 at about 90 ° relative to the position of FIG 5 is rotated in the counterclockwise direction.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Motor Or Generator Frames (AREA)
- Exhaust Gas After Treatment (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Description
- Fig. 1
- einen Längsschnitt durch einen erfindungsgemäßen Luftmotor;
- Fig. 2
- eine Draufsicht auf einen hinteren Rotordeckel aus Richtung eines Motorzylinders;
- Fig. 3
- eine Ansicht einer Luftverteilereinrichtung aus Richtung hinterer Rotordeckel;
- Fig. 4
- eine Ansicht von innen auf eine teilweise dargestellte Dreiecksseite eines Luftrotors im Bereich von Lufteinlass- und Luftauslasskanal;
- Fig. 5
- einen Schnitt durch Figur 1 entlang der Linie V-V für Linksdrehung;
- Fig. 6
- einen Schnitt entsprechend zu Figur 5 durch einen Motorzylinder, und
- Fig. 7
- einen Schnitt durch Figur 1 entsprechend zu Figur 5 für Rechtsdrehung.
Claims (34)
- Luftmotor (1), insbesondere für einen Schrauber, mit einem in einem Motorzylinder (2) drehbar gelagerten Luftrotor, welcher eine Anzahl von in seiner Längsrichtung (4) verlaufende Längsschlitze zur radialen Führung von Lamellen (6) aufweist, wobei zwischen Rotor (3) und Motorzylinder (2) Kammern (7, 8, 9) gebildet sind, die mit einem Lufteinlass (10, 11) und/oder einem Luftauslaß (12) in Verbindung bringbar sind, wobei der Motorzylinder (2) einen Innenraum mit im Wesentlichen dreieckförmigen Querschnitt aufweist und jeweils eine Kammer (7, 8, 9) zwischen Luftrotor (3) und einer Dreiecksspitze (13, 14, 15) gebildet ist,
dadurch gekennzeichnet, dass auf einer Außenseite (23) jeder Dreiecksseite (19, 20, 21) wenigstens ein Lufteinlass- und Luftauslasskanal (24, 25) benachbart zueinander in Längsrichtung (4) des Motorzylinders (2) verlaufen und der hintere und/oder vordere Rotordeckel (31) zur alternativen Versorgung mit Luft von Lufteinlass und Luftauslasskanal (24, 25) relativ zum Motorzylinder (2) verdrehbar ist, wobei im vorderen und/oder hinteren Rotordeckel (31, 32) Luftauslässe (35) als im Rotordeckel (31, 32) ausgebildete, teilkreisringförmige, zumindest zum Motorzylinder (2) offene Auslassvertiefungen (12, 36) ausgebildet sind, die mit Lufteinlass- oder mit Luftauslasskanal (24, 25) verbindbar sind. - Luftmotor nach Anspruch 1,
dadurch gekennzeichnet, dass der Innenraum des Motorzylinders (2) einen Querschnitt eines gleichschenkligen Dreiecks hat, wobei eine Drehachse (16) des Luftrotors (3) insbesondere im Schnittpunkt der drei Mittelsenkrechten (18) der Dreiecksseiten (19, 20, 21) angeordnet ist. - Luftmotor nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass die Dreiecksseiten (19, 20, 21) des Motorzylinders (2) zumindest im Bereich der jeweiligen Mittelsenkrechten (18) konvex gekrümmt sind. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Innenflächen (22) des Motorzylinders (2) zumindest im Bereich der Dreiecksspitzen (13, 14, 15) konvex gekrümmt ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass Innenflächen (22) des Motorzylinders (2) im Bereich der Dreiecksspitzen (13, 14, 15) gleiche Krümmungsradien aufweisen. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass Lufteinlass- und Luftauslasskanal (24, 25) in einem Kanalkörper (26) des Motorzylinders (2) ausgebildet sind. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Außenfläche (27) des Motorzylinders (2) im Bereich von Dreiecksspitzen (13, 14, 15) und Kanalkörper (26) auf einer Kreislinie (28) liegen. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass der Durchmesser (29) der Kreislinie (28) kleiner als ein Durchmesser (30) eines vorderen und/oder hinteren Rotordeckels (31, 32) ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass der Kanalkörper (26) sich zwischen vorderem und hinterem Rotordeckel (31, 32) erstreckt. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass im hinteren Rotordeckel (31) wenigstens Lufteinlässe (10, 11; 33) zur Luftzufuhr zu den Lufteinlasskanälen (24) ausgebildet sind. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass der Lufteinlass (33) als den hinteren Rotordeckel (31) durchsetzende Bohrung (34) ausgebildet ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass ein Querschnitt der Bohrung (34) eine geringere Größe als ein Querschnitt des Lufteinlasskanals (24) aufweist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass Bohrung (34) und/oder Lufteinlasskanal (24) einen kreisförmigen Querschnitt aufweisen. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass der hintere Rotordeckel (31) zur alternativen Versorgung mit Luft von Lufteinlassund Luftauslasskanal (24, 25) relativ zum Motorzylinder (2) verdrehbar ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass im vorderen und/oder hinteren Rotordeckel (31, 32) Luftauslässe (35) ausgebildet sind, die mit Lufteinlass- oder Luftauslasskanal (24, 25) verbindbar sind. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass der Luftauslass (35) als im Rotordeckel (31, 32) ausgebildete, teilkreisringförmige, zumindest zum Motorzylinder (2) offene Auslassvertiefung (12, 36) ausgebildet ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Auslassvertiefung (36) radial nach außen über einen Auslassspalt (37) geöffnet ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Auslassvertiefung (36) sich bei Verbindung mit einem Luftauslasskanal (25) an einem ihrer Enden (38) mit ihrem anderen Ende (39) bis in einen Bereich zwischen einer Dreiecksspitze (13, 14, 15) und einem Kanalkörper (26) erstreckt. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Auslassvertiefung (36) in Verbindung mit einer dem zugeordneten Luftauslasskanal (25) in Drehrichtung (40) des Luftrotors (3) nachgeordneten Kammer (7, 8, 9) ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass ein Innenradius (41) der Auslassvertiefung (36) im wesentlichen gleich einem Außenradius (42) des Luftrotors (3) ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass Lufteinlass- und Luftauslasskanal (24, 25) auf der Innenseite (43) des Motorzylinders (2) sich über einen Teil ihrer jeweiligen Länge erstreckende, in Richtung Luftrotor (3) offene Schlitze (44, 45) aufweisen, die durch einen Dichtsteg (46) getrennt sind, mit dem der Luftrotor (3) in dichtender Anlage ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass der Luftrotor (3) mindestens sieben Längsschlitze (5) mit entsprechend gleicher Anzahl Lamellen (6) aufweist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass ein der Länge (47) der Auslassvertiefung (36) in Umfangsrichtung (48) zugeordneter Mittelpunktswinkel (49) größer als der Winkel (50) zwischen zwei benachbarten Lamellen (6) ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass eine Druckfeder (57) zwischen zwei jeweils diametral gegenüberliegenden Lamellen (6) angeordnet ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass der hintere Rotordeckel (31) um eine Mittelbohrung (58) angeordnete Druckluftausnehmungen (59) aufweist, die sich konzentrisch zur Mittelbohrung erstrecken. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Druckluftausnehmungen (59) gleich beabstandet zueinander in Umfangsrichtung (60) der Mittelbohrung (58) angeordnet und/oder seitlich zur Mittelbohrung geöffnet sind. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass eine Luftverteilereinrichtung (61) zur Zufuhr von Druckluft zu den Lufteinlässen (10, 11) des hinteren Rotordeckels (31) an dessen dem Luftrotor (3) gegenüberliegenden Seite angeordnet ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Luftverteileinrichtung (61) scheibenförmig ausgebildet ist und drei von einer mittleren Luftversorgungsbohrung radial nach außen verlaufende Luftverteilungsnuten (62) auf der dem hinteren Rotordeckel zuweisenden Seite aufweist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Luftverteilungsnuten (62) in Umfangsrichtung gleichbeabstandet zueinander angeordnet und je nach Relativposition zum hinteren Rotordeckel (31) einer Gruppe von Lufteinlässen (10, 11) zur Druckluftbeaufschlagung zugeordnet sind. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass die Luftauslässe (12) den hinteren Rotordeckel (31) durchsetzen. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass der hintere Rotordeckel (31) in zwei Stellungen relativ zum Motorzylinder (2) zur Links- und Rechtsdrehung des Luftrotors (3) rastbar gelagert ist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass radial auswärts vom hinteren Rotordeckel (31) ein Umschaltknopf (63) absteht. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass der Luftmotor ein Motorgehäuse (64) aufweist, in dem die Rotordeckel (31, 32) und Motorzylinder (2) mit Luftrotor (3) angeordnet sind, wobei das Motorgehäuse einen mit der Luftversorgungsbohrung (65) in Verbindung stehenden Luftversorgungskanal (66) und eine die Abtriebswelle des Luftrotors lagernde Rotorbohrung (67) aufweist. - Luftmotor nach wenigstens einem der vorangehenden Ansprüche,
dadurch gekennzeichnet, dass zur Übertragung eines Reaktionselements ein Stift (67) zwischen vorderem Rotordeckel (32) und Motorzylinder (2) angeordnet ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20006683U DE20006683U1 (de) | 2000-04-11 | 2000-04-11 | Luftmotor |
DE20006683U | 2000-04-11 | ||
PCT/EP2001/004205 WO2001077497A1 (de) | 2000-04-11 | 2001-04-11 | Luftmotor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1272737A1 EP1272737A1 (de) | 2003-01-08 |
EP1272737B1 true EP1272737B1 (de) | 2004-01-28 |
Family
ID=7940123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01931593A Expired - Lifetime EP1272737B1 (de) | 2000-04-11 | 2001-04-11 | Luftmotor |
Country Status (6)
Country | Link |
---|---|
US (1) | US6857864B2 (de) |
EP (1) | EP1272737B1 (de) |
JP (1) | JP3730571B2 (de) |
AT (1) | ATE258646T1 (de) |
DE (2) | DE20006683U1 (de) |
WO (1) | WO2001077497A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7939982B2 (en) | 2008-10-02 | 2011-05-10 | Nidec Motor Corporation | Motor with lobed rotor having uniform and non-uniform air gaps |
US9206688B2 (en) * | 2013-07-10 | 2015-12-08 | Spx Flow, Inc. | High torque rotary motor with multi-lobed ring with inlet and outlet |
CN110259518B (zh) * | 2019-07-17 | 2024-03-22 | 顾新钿 | 一种气动马达 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2452471A (en) * | 1945-05-19 | 1948-10-26 | Eaton Pump Mfg Company Inc | Rotary vane pump |
US2575524A (en) * | 1946-10-10 | 1951-11-20 | Independent Pneumatic Tool Co | Rotary tool |
GB732394A (en) * | 1953-01-19 | 1955-06-22 | Karsten Alfred Ovretveit | Improvements in or relating to rotary hydraulic and pneumatic motors and pumps |
US3230840A (en) * | 1963-05-22 | 1966-01-25 | Elliott F Hanson | Fluid operated device |
US3381891A (en) * | 1966-03-02 | 1968-05-07 | Worthington Corp | Multi-chamber rotary vane compressor |
US3498186A (en) * | 1967-05-19 | 1970-03-03 | Oren Van Northcutt | Multiple lobed chamber air motor |
DE1902187C3 (de) * | 1969-01-17 | 1978-10-12 | Alfred Teves Gmbh, 6000 Frankfurt | Drehkolbenmaschine |
US3858559A (en) * | 1970-12-04 | 1975-01-07 | Jr Albert Raymond Thomas | Coupled vane rotary fluid device |
DE2125516A1 (de) * | 1971-05-22 | 1972-12-07 | Steiner, Eduard; Schmidt, Otto; 2000 Hamburg | Kreiskolbenmotor - pumpe |
SU632830A1 (ru) * | 1975-04-28 | 1978-11-15 | Украинский Заочный Политехнический Институт | Пластинчата машина многократного действи |
EP0052162A1 (de) * | 1980-11-19 | 1982-05-26 | Erich Charwat | Drehkolbenmaschine mit gleitenden Schiebern zum Betrieb mit expandierenden Gasen |
DE3503032C2 (de) * | 1985-01-30 | 1994-04-07 | Gardner Denver Gmbh | Druckluftmotor für Druckluftschrauber |
FR2762879A1 (fr) * | 1997-04-30 | 1998-11-06 | Valeo Seiko Compressors Sa | Compresseur de gaz, en particulier pour appareil de climatisation de vehicule automobile |
-
2000
- 2000-04-11 DE DE20006683U patent/DE20006683U1/de not_active Expired - Lifetime
-
2001
- 2001-04-11 DE DE50101404T patent/DE50101404D1/de not_active Expired - Lifetime
- 2001-04-11 EP EP01931593A patent/EP1272737B1/de not_active Expired - Lifetime
- 2001-04-11 AT AT01931593T patent/ATE258646T1/de not_active IP Right Cessation
- 2001-04-11 WO PCT/EP2001/004205 patent/WO2001077497A1/de active IP Right Grant
- 2001-04-11 JP JP2001574732A patent/JP3730571B2/ja not_active Expired - Fee Related
-
2002
- 2002-10-10 US US10/268,589 patent/US6857864B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE20006683U1 (de) | 2001-08-16 |
JP3730571B2 (ja) | 2006-01-05 |
EP1272737A1 (de) | 2003-01-08 |
WO2001077497A1 (de) | 2001-10-18 |
US20040071579A1 (en) | 2004-04-15 |
DE50101404D1 (de) | 2004-03-04 |
JP2003530509A (ja) | 2003-10-14 |
WO2001077497B1 (de) | 2002-02-21 |
ATE258646T1 (de) | 2004-02-15 |
US6857864B2 (en) | 2005-02-22 |
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