Seal retaining sleeve for gear pump

A shaft assembly includes a shaft with a first radial shoulder and a second radial shoulder along a shaft axis. A seal retaining sleeve is defined around the shaft axis to position a shaft seal. A retainer plate at least partially between the first radial shoulder and the second radial shoulder is adjacent to the seal retaining sleeve to position and provide access to the seal retaining sleeve and shaft seal.

Downhole Backspin Retarder for Progressive Cavity Pump

A backspin retarder for a progressive cavity pump deploys on the drive string uphole from a pump unit. The backspin retarder has a shaft that connects to portions of the drive string. An impeller disposes on the shaft and can move axially and radially. In an unengaged condition, the impeller and shaft can rotate relative to one another so the drive string can rotate in a drive direction without impediment from the impeller. In an engaged condition, the impeller rotates with the shaft in a backspin direction. In this way, vanes on the impeller can retard the backspin of the shaft and drive string by attempting to force the lifted fluid column flowing downhole past the impeller back uphole. The retarder can use a pin and slot arrangement or an arrangement of engageable teeth to engage the impeller to the rotation of the shaft.

Meat processing assembly

An improved processing assembly having a meat emulsion pump connected to a stuffing horn. The stuffing horn positioned to fill casings with meat emulsion which form a strand of processed meat that is received by a twister, then a linker, and subsequently deposited on a conveyor.

Vane pump apparatus and method

The invention relates to a vane pump, comprising an electric drive unit having an electric motor and a motor shaft, a pump chamber, attached on the electric drive unit, a rotor having a plurality of blades, said rotor being arranged concentrically to the motor shaft within the pump chamber, wherein the motor shaft is engaged with the rotor by way of a tappet which is connected torsionally rigid with the motor shaft and the tappet comprises at least one tappet peg, which is engaged in a rotor recess that corresponds to the tappet peg, wherein the at least one rotor recess has an oval shape and the tappet peg is contoured in such a way that two first slightly curved contoured sections each form one contact area with one oblong planar section each of the rotor recess.

TROCHOID PUMP FOR TRANSFERRING HIGH-VISCOSITY LIQUID UNDER HIGH PRESSURE

Disclosed is a trochoid pump for transferring high-viscosity liquids under high pressure. The trochoid pump includes an idler coupled to an inner through-hole inside a housing to be rotated, a rotor inserted into an inside of the idler, and a shaft configured to rotate the rotor, wherein the idler is provided with an inner toothed groove, into which the rotor is inserted and which has a plurality of projecting teeth, and recessed grooves, which are recessed with a predetermined depth along an outer circumferential surface thereof in a circumferential direction. Unlike an existing gear pump or trochoid pump, the trochoid pump for transferring high-viscosity liquids can reduce a viscous friction force, and can reduce the driving power. 1. A trochoid pump comprising:an idler rotatably coupled to an inner through-hole on an inside of a housing, a rotor inserted into an inside of the idler, and a shaft rotating the rotor,wherein the rotor is inserted into the idler and the idler has an inner toothed groove having a plurality of projecting gear teeth formed thereon, and a recessed groove formed on an outer circumference with a predetermined depth in a circumferential direction.2. The trochoid pump according to claim 1 , wherein the at least one recessed groove is formed on a center portion of the outer circumference of the idler claim 1 , and front and rear circular grooves are formed at front and rear ends that come in contact with an end portion of the rotor on an outer circumference of the idler.3. The trochoid pump according to claim 2 , wherein the front and rear circular grooves are formed to be deeper than the recessed groove.4. The trochoid pump according to claim 1 , wherein the outer circumference of the idler is spaced apart from an inner circumference of the inner through-hole of the housing to form a gap between them.5. The trochoid pump according to claim 1 , wherein the rotor is constructed so that a plurality of gears are formed on an outer circumference ...

Internal Gear Pump

The disclosure relates to an internal gear pump as a hydraulic pump for a slip-controlled vehicle brake system. The disclosure proposes to configure the internal gear pump as a pre-assembled module with a cartridge as housing, which can be pressed into a receptacle of a hydraulic block of the vehicle brake system. The cartridge has two steps which are parallel to one another for attaching a press-in ram and for orienting the cartridge in an angularly correct manner by means of the press-in ram, and a sealing surface, with which the cartridge bears in a sealed manner in the receptacle of the hydraulic block when the cartridge is pressed into the receptacle. 1. An internal gear pump for a hydraulic vehicle brake system , comprising:a preassembled module including a cartridge configured as a housing, the cartridge having a shoulder for angularly correct alignment by positive engagement.2. The internal gear pump as claimed in claim 1 , further comprising:a drive wheel positioned on one end of the cartridge, a diameter of the drive wheel being smaller than a diameter of the cartridge, wherein the drive wheel does not overlap the shoulder for angularly correct alignment of the cartridge, when viewed axially.3. The internal gear pump as claimed in claim 1 , the cartridge having two parallel surfaces extending in secant directions as a shoulder for angularly correct alignment by positive engagement.4. The internal gear pump as claimed in claim 3 , the cartridge having two mutually opposite parallel steps which are axially parallel with respect to the cartridge claim 3 , the two mutually opposite parallel steps being the two parallel surfaces of the shoulder for angularly correct alignment of the cartridge by positive engagement claim 3 , the two mutually opposite parallel steps further having radial surfaces situated in a radial plane of the cartridge and configured to press the cartridge into a socket.5. The internal gear pump as claimed in claim 1 , further comprising a ...

Rotary vane pump for generating a vacuum

A rotary vane pump for generating a vacuum, having an electric drive with a motor stator and a motor rotor, wherein the motor stator and the motor rotor radially encompass the pump housing. The motor stator is non-rotatably disposed around or on the pump housing. The motor rotor is disposed on the side of the motor stator facing away from the pump housing, such that an overall housing is provided that accommodates the electric drive and the pump housing, and the overall housing has a housing floor and a housing shell, wherein the housing floor, together with the pump housing delimits the pump chamber.

ROTARY COMBUSTION ENGINE ROTOR DEACTIVATION AND METHOD

A method and a Rotary Combustion Engine (RCE) suitable for deactivation of at least one rotor out of a plurality of rotors. The RCE includes at least a first shaft portion and a second shaft portion which are disposed in straight coextensive longitudinal axial alignment. Each shaft portion may support at least one rotor. The at least first shaft portion and second shaft portion are separated by a gap. A shaft coupling mechanism is operable to bridge the gap and couple the first shaft portion in engagement with the second shaft portion for rotation together. The shaft coupling mechanism is also operable to disengage the first shaft portion and the second shaft portion, and thereby deactivate the rotation of at least one rotor. 1. A Rotary Combustion Engine (RCE) suitable for deactivation of at least one rotor of a plurality of rotors , the RCE comprising:a shaft having at least a first shaft portion and a second shaft portion which are disposed in coextensive longitudinal coaxial alignment, and wherein each shaft portion supports at least one rotor;a gap which separates the first shaft portion and the second shaft portion; and engage the first shaft portion and the second shaft portion for rotation together, and', 'disengage one of the first shaft portion and the second shaft portion to deactivate rotation of the at least one rotor., 'a shaft coupling mechanism configured to2. The RCE of claim 1 , wherein engagement and disengagement of the shaft coupling mechanism is controlled by one of an engine control unit and a user.3. The RCE of claim 2 , wherein an actuator is configured to engage and to disengage the first shaft portion and the second shaft portion.4. The RCE of claim 3 , wherein:the first shaft portion and the second shaft portion have a hollow interior, andthe shaft coupling mechanism is configured for bidirectional longitudinal translation in the hollow interior.5. The RCE of claim 4 , wherein the shaft coupling mechanism is disposed for operation in one ...

DUAL-STAGE GEAR PUMP WITH REDUCED PRESSURE RIPPLE

A fuel system includes a fuel gathering system in fluid communication with a fuel storage container, and a fluid pump assembly in fluid communication with the fuel gathering system. The fluid pump assembly includes a main gear pump stage and a first flow attenuator. A main driven gear is meshed with a main drive gear in a main pump conduit, and a main pump bearing assembly rotatably supports the main drive gear and the main driven gear. The first flow attenuator is disposed around the main pump conduit, and includes a substantially polygonal fluid opening. Edges of the opening are substantially aligned with an undercut bearing portion on at least one of an inlet side and an outlet side of the main pump conduit to define a non-round fluid boundary. 1. A fuel system comprising:a fuel storage container;a fuel gathering system in fluid communication with the fuel storage container; and a main gear pump stage including a main driven gear meshed with a main drive gear in a main pump conduit, and a main pump bearing assembly rotatably supporting the main drive gear and the main driven gear; and', 'a first flow attenuator disposed around the main pump conduit, the first flow attenuator including a substantially polygonal fluid opening having edges substantially aligned with an undercut bearing portion on at least one of an inlet side and an outlet side of the main pump conduit to define a non-round fluid boundary., 'a fluid pump assembly in fluid communication with the fuel gathering system, the fluid pump assembly comprising2. The fuel system of claim 1 , wherein the fuel storage container comprises:a plurality of wing-mounted fuel tanks.3. The fuel system of claim 1 , further comprising:a heat exchanger disposed upstream of the dual-stage fuel pump assembly;wherein the heat exchanger is in selective thermal communication with engine oil flowing through an engine thermal management system.4. The fuel system of claim 1 , wherein the fluid pump assembly is a dual-stage fuel ...

IRRIGATION PUMPJACK

A pump comprises a frame and a docking platform connected to the frame. A motor is mounted to the docking platform and has a rotatable drive shaft extending therefrom. Roller bearings are mounted to cross beams attached to the frame. A vertically reciprocable slide bar driven is reciprocable through the at least one pair of roller bearings. A pump rod connector is attached to the slide bar and connectable to a pump rod extending into a well. 1. A pump comprising:a frame;a docking platform connected to the frame;a motor mounted to the docking platform, the motor having a rotatable drive shaft extending therefrom;a plurality of cross beams connected to the frame;at least one pair of roller bearings mounted to the cross beams;a vertically reciprocable slide bar driven by rotation of the rotatable shaft and reciprocable through the at least one pair of roller bearings; anda pump rod connector attached to the slide bar and connectable to a pump rod extending into a well.2. The pump of claim 1 , the frame comprising a mobile frame having wheels connected thereto.3. The pump of further comprising at least one pair of opposed brackets extending forward from the frame claim 1 , the brackets defining a generally V-shaped notch configured to engage a portion of a wellhead at a well at which the pump is located.4. The pump of further comprising:a speed reduction arrangement coupled to the drive shaft;an output shaft rotated by the drive shaft at a rotational speed less than the rotational speed of the drive shaft; anda disk coupled to the output shaft and rotatable therewith, the disk being connected to the sliding bar such that rotation of the disk vertically reciprocates the slide bar.5. The pump of claim 4 , the speed reduction arrangement comprising:a drive pulley fixed to the drive shaft;a gearbox containing a speed reducing gear arrangement;a gear shaft extending from the gearbox and connected to the gear arrangement;a driven pulley fixed to the gear shaft; anda drive ...

FLUID MACHINE AND RANKINE CYCLE

A fluid machine includes: a first shaft; a compressor/expander fluid machine; a planetary gear mechanism having a sun gear connected to a second shaft rotating in synchronization with the compressor/expander fluid machine, a ring gear connected to the first shaft, a planetary gear, and a planetary carrier; a first clutch that locks/releases the planetary carrier and one of the ring gear and the sun gear; a second clutch that locks/releases the planetary carrier and the housing; a clutch control unit that controls locking/releasing of the first and second clutches depending on whether the compressor/expander fluid machine operates as an expander or a compressor. 18.-. (canceled)9. A fluid machine comprising:a first shaft configured to rotate in synchronization with an engine crankshaft;a compressor/expander fluid machine configured to operate as an expander rotating by converting energy of a refrigerant into mechanical energy in rotation of one direction, and operate as a compressor by compressing and discharging the refrigerant in rotation of the other direction; a sun gear connected to the second shaft rotating in synchronization with the compressor/expander fluid machine,', 'a ring gear connected to the first shaft,', 'a plurality of planetary gears configured to mesh with the ring gear and the sun gear and rotate around the sun gear, and', 'a planetary carrier configured to support a rotation shaft of the planetary gear;, 'a planetary gear mechanism having'}a first clutch configured to lock or release the planetary carrier and one of the ring gear and the sun gear;a second clutch configured to lock or release the planetary carrier and a housing; anda clutch control unit configured to control locking/releasing of the first and second clutches depending on whether the compressor/expander fluid machine operates as an expander or a compressor.10. The fluid machine according to claim 9 , wherein the clutch control unit is configured to lock the first clutch and ...

PUMP

An oil pump includes: an annular stator () having coils (); a cylindrical outer rotor () having a plurality of permanent magnets (); an inner rotor () positioned eccentrically to an inner peripheral side of the outer rotor (); six linkage plates () which link between the outer rotor () and the inner rotor (); and a drive shaft () on which the inner rotor () is attached. A pump action is obtained by rotating the outer rotor () and the inner rotor (action is obtained by rotating the outer rotor () and the inner rotor (). Each of linkage plates () has a symmetrical cross sectional shape. A torque transmission is possible in the same way even if the outer rotor () is at a drive side and even if the inner rotor () is at the drive side. 1. A pump , comprising:a housing including a suction port, a discharge port, and an annular stator;a cylindrical outer rotor rotatably disposed at an inner peripheral side of the stator, including a plurality of permanent magnets arranged on an outer peripheral surface of the outer rotor to constitute a motor section in cooperation with the stator, and a plurality of plate holding grooves, each plate holding groove having a letter C shape in cross section, being extended in an axial direction of the outer rotor, and being formed on an inner peripheral surface of the outer rotor;an inner rotor disposed at a position eccentric with respect to the outer rotor, disposed at an inner peripheral side of the outer rotor, constituting a space communicated with the suction port and the discharge port against the outer rotor, and having an outer peripheral surface on which a plurality of slots are formed in a radial direction of the inner rotor;a drive shaft interlinked with the inner rotor and rotationally driven by means of a second drive source; anda plurality of linkage plates, each linkage plate having a head section of a circular cross section swingably fitted into a corresponding one of the plate holding grooves and a bulged section of a ...

Dual pump system for automatic transmission augmentation, extended stop and start, and sailing

A dual pump system for a motor vehicle transmission includes a first pump connected to and co-rotated with a pump shaft rotated during operation of a motor vehicle engine. A second pump is connected to a motor shaft of an electric motor. A one-way roller clutch is connected to the second pump and to the pump shaft. The one-way roller clutch is configured to allow the faster rotated one of the pump shaft or the motor shaft to drive the second pump. The pump shaft and the motor shaft can be co-axially aligned or positioned off-axis with respect to each other.

PUMP COVER

A cover with a center axis for a pump assembly includes a plate. A center hole is formed in the plate and positioned on the center axis of the cover. A first edge of the plate extends between a first lobe and a second lobe, a second edge of the plate extends between the first lobe and a third lobe, and a third edge of the plate extends between the second lobe and the third lobe. The first, second, and third lobes each comprise a mounting boss with a thru-hole. 1. A cover with a center axis for a pump assembly comprising:a plate;a center hole formed in the plate and positioned on the center axis of the cover;a first edge of the plate extending between a first lobe and a second lobe;a second edge of the plate extending between the first lobe and a third lobe; anda third edge of the plate extending between the second lobe and the third lobe,wherein the first, second, and third lobes each comprise a mounting boss with a thru-hole.2. The cover of claim 1 , wherein the first edge and the second edge are straight.3. The cover of claim 2 , wherein the third edge is bent away from the center hole on a plane of the plate.4. The cover of claim 3 , wherein the third edge is longer in length than the first edge.5. The cover of claim 4 , wherein the second edge is longer in length than the first edge.6. The pump assembly of claim 5 , wherein the first edge and the second edge of the plate are positioned equidistant from the center axis.7. The cover of claim 1 , wherein the plate of the cover is generally triangular in shape.8. A pump assembly comprising:a tubular body extending from a first end to a second end along a center axis, wherein the first end is open;a plurality of pumps disposed within the tubular body; and a plate;', 'a center hole formed in the plate and positioned on the center axis of the tubular body;', 'a first edge of the plate extending between a first lobe and a second lobe;', 'a second edge of the plate extending between the first lobe and a third lobe; and', ...

PROGRESSING CAVITY DEVICES AND ASSEMBLIES FOR COUPLING MULTIPLE STAGES OF PROGRESSING CAVITY DEVICES

A progressing cavity device includes a stator including a first end, a second end, and an inner surface formed from a metallic material that extends between the first end and the second end, and a rotor rotatably disposed in the stator, the stator including a first end, a second end, and an outer surface formed from a metallic material that extends between the first end and the second end, wherein the outer surface of the rotor contacts the inner surface of the stator, wherein the inner surface of the stator includes a conical taper extending between the first end and the second end, wherein the outer surface of the rotor includes a conical taper extending between the first end and the second end. 1. A progressing cavity device , comprising:a stator comprising a first end, a second end, and an inner surface formed from a metallic material that extends between the first end and the second end; anda rotor rotatably disposed in the stator, the stator comprising a first end, a second end, and an outer surface formed from a metallic material that extends between the first end and the second end, wherein the outer surface of the rotor contacts the inner surface of the stator;wherein the inner surface of the stator comprises a conical taper extending between the first end and the second end;wherein the outer surface of the rotor comprises a conical taper extending between the first end and the second end.2. The progressing cavity device of claim 1 , wherein the taper of the inner surface of the stator and the taper of the outer surface of the rotor each comprise a fixed taper angle.3. The progressing cavity device of claim 1 , wherein the outer surface of the rotor is a helical surface comprising a plurality of rotor lobes and the inner surface of the stator is a helical surface comprising a plurality of stator lobes configured to intermesh with the rotor lobes.4. The progressing cavity device of claim 1 , wherein the first end of the stator comprises a fluid inlet end and ...

Pump and motor combination

A pump-motor combination features a motor ( 30 ) and a pump ( 20 ). The pump has a first rotor ( 21 ) and a first housing 300 ). The motor is an electric motor ( 30 ) having a second rotor ( 31 ), a stator ( 33 ) and a second housing ( 32 ). The first (pump) rotor ( 21 ) is at least partially coupled, and the second (motor) rotor ( 31 ) is completely coupled, to a common rotating shaft ( 40 ), in order to enable transmission of rotation of the second (motor) rotor ( 31 ) to the first (pump) rotor ( 21 ). The structure has significant advantages when installed with the gearbox (G) or transmission of a motor vehicle, to assure supply of lubricant ( 360 ) when a primary lubricant pump ( 350 ) has not been operating, for example, upon start-up. Use of the common shaft ( 40 ) minimizes frictional losses during operation and reduces the cost of manufacture, since fewer bearings are needed, compared to the prior art.

Transmission packaging for an epicyclic/planetary gearbox unit with integrated oil pump

Packaging for transmissions with an epicyclic gearbox speed reducer and oil pump is provided. Packaging comprises an epicyclic/planetary gearbox or single stage gear reducer with a sun gear, ring unit, and one or more planetary gears on the ring unit, and an oil pump located inside the packaging. The oil pump may be driven directly by a carrier, or driven by a carrier using a gear stage set. This configuration provides a tighter packaging of the full assembly of an epicyclic/planetary gearbox for transmissions with an internal oil pump, which reduces the weight of the unit, provides lubrication, and avoids splashing. The pump packaging may also be particularly valuable for electric vehicle (“EV”) independent motor applications.

VANE PUMP

A vane pump is provided with: a pump housing having an accommodating concave portion; and a pump cartridge accommodated in the accommodating concave portion, wherein the pump cartridge has: a rotor; a plurality of vanes received in a plurality of slits formed in the rotor; a cam ring formed with a cam face on an inner circumference of the cam ring; and a first side plate provided at the opposite side from a bottom surface of the accommodating concave portion such that the cam ring is located therebetween, the first side plate has a first projected portion projected radially outward, and the pump cartridge is anchored to the pump housing via the first projected portion. 1. A vane pump configured to discharge working fluid by being rotationally driven by a driving source , comprising:a pump housing having an accommodating concave portion; anda pump cartridge accommodated in the accommodating concave portion, wherein a rotor to which a rotational driving force from the driving source is transmitted;', 'a plurality of vanes freely slidably received in a plurality of slits, the slits being formed in the rotor in a radiating pattern;', 'a cam ring formed with a cam face on an inner circumference of the cam ring, the cam face being configured such that tip ends of the plurality of vanes slide on the cam face as the rotor is rotated; and', 'a first side plate provided on an opposite side from a bottom surface of the accommodating concave portion such that the cam ring is located therebetween,, 'the pump cartridge hasthe first side plate has a first projected portion projected radially outward, andthe pump cartridge is anchored to the pump housing via the first projected portion.2. The vane pump according to claim 1 , further comprisingan annular member fitted into an annular groove, the annular groove being formed in an inner circumferential surface of the accommodating concave portion, whereinthe annular member comes into contact with the first projected portion at an ...

VANE OIL PUMP

A vane oil pump includes a rotor including a plurality of slits, a housing having an inner circumferential cam surface such that a first pump unit and a second pump unit taking in and discharging oil in accordance with rotation of the rotor are separately disposed in a rotational direction of the rotor, a plurality of vanes respectively fitted in the slits of the rotor, and a pressure adjusting device configured to adjust a second discharge pressure of the second pump unit to a lower pressure than a first discharge pressure of the first pump unit. A back pressure groove is disposed on the housing and is provided to supply back pressure oil to a bottom portion of each slit. 1. A vane oil pump comprising:a rotor including a plurality of slits open on an outer circumferential surface of the rotor;a housing having an inner circumferential cam surface, the housing accommodating the rotor inside the housing such that the outer circumferential surface of the rotor faces the inner circumferential cam surface, the housing being configured to allow rotation of the rotor with respect to the housing, the inner circumferential cam surface of the housing being configured to have a diameter dimension from a rotational axis of the rotor, and the diameter dimension being configured to increase or decrease in a rotational direction of the rotor such that a first pump unit and a second pump unit taking in and discharging oil in accordance with rotation of the rotor are separately disposed in the rotational direction of the rotor;a plurality of vanes respectively fitted in the slits of the rotor, a tip end portion of each vane being radially disposed to protrude from the opening of each slit of the rotor, and the vanes being configured to advance or retract with respect to the slits in a radial direction of the rotor; anda pressure adjusting device configured to adjust a second discharge pressure of the second pump unit to a lower pressure than a first discharge pressure of the first ...

Flexible impeller pump

The present invention relates to improvements in the area of flexible impeller pumps. In particular, the present invention relates to flexible impellers with improved profiles(such as dual sealing lips), which are particularly well-suited to multiple cam pumps. A novel mounting hub configuration for mounting an impeller on a drive shaft is also provided. Pumps comprising such impellers and/or mounting hubs are provided, as are associated methods of installation and removal.

Fluid-pump inner rotor

Provided is a fluid-pump inner rotor that can be easily fitted to an outer rotor. This fluid-pump inner rotor includes a rotor member having a through hole along a rotational axis and a shaft member fitted in the through hole. Fitting strength between a first hole region provided in an inner face of the through hole of the rotor member which region extends along a rotational axis of the rotor member from one of end faces thereof perpendicular to this rotational axis and a first shaft region provided in an outer face of the shaft member is set greater than fitting strength between a second hole region provided in the inner face of the through hole of the rotor member and a second shaft region provided in the outer face of the shaft member.

UNIVERSAL JOINT WITH COOLING SYSTEM

A progressing cavity pump system including a rotor and a stator having an inner cavity. The rotor is rotationally disposed inside the inner cavity of the stator such that rotation of the rotor relative to the stator causes material in the inner cavity to be pumped therethrough. The pump system further includes a universal joint directly or indirectly rotationally coupled to the rotor, and a cooling system thermally coupled to the universal joint and configured to cool the universal joint by active heat exchange at a position remote from the universal joint. 1. A progressing cavity pump system comprising: a rotor;', 'a stator having an inner cavity, said rotor being rotationally disposed inside said inner cavity of said stator such that rotation of said rotor relative to said stator causes material in said inner cavity to be pumped therethrough; and', 'a universal joint directly or indirectly rotationally coupled to said rotor; and, 'a pump comprisinga cooling system thermally coupled to said universal joint and configured to cool said universal joint by active heat exchange at a position remote from said universal joint pass a fluid about said universal joint or about said pump at a position external of said inner cavity, wherein said position is axially aligned with at least part of said universal joint to provide cooling thereto.2. The system of wherein said universal joint is a gear joint including a ball gear and a ring gear receiving said ball gear therein and rotationally coupled thereto claim 1 , and wherein said remote position is remote from said ball gear and said ring gear.3. The system of wherein said universal joint is a gear joint including a ball gear and a ring gear receiving said ball gear therein and rotationally coupled thereto claim 1 , wherein said ball gear has a spherical surface claim 1 , and wherein the gear joint further includes a thrust plate positioned adjacent to said ball gear and having a spherical recess in contact with said ...

Pump assembly with charge pump rotor, inversion pump rotor and scavenge pump rotor

A pump assembly is provided and includes a housing having first, second and third pairs of fluid openings and first, second and third rotary pumps, which are co-rotatable about a common longitudinal axis defined through the housing to drive fluid flow relative to the first, second and third pairs of fluid openings, respectively. The first rotary pump includes an input member receptive of rotational drive energy for the first, second and third rotary pumps.

PUMP UNIT AND ACTUATOR

There is provided a pump unit capable of shortening the overall length thereof and maintaining mechanical efficiency even after long-term use and also to provide an actuator having such a pump unit, the pump unit (U) includes a hydraulic pump (P), a motor (M), a coupling () coupling a drive shaft () of the hydraulic pump (P) and a shaft () of the motor (M), a holder (H) having a housing portion (L) that is hollow and houses the coupling (), and an introduction passage (D) that guides the hydraulic oil to the housing part (L). 1. A pump unit comprising:a hydraulic pump;a motor;a coupling coupling a drive shaft of the hydraulic pump and a shaft of the motor; anda holder holding the hydraulic pump and the motor and having a housing portion that is hollow and houses the coupling,wherein the holder is provided with an introduction passage that guides hydraulic oil to the housing portion.2. The pump unit according to claim 1 ,wherein the introduction passage is connected to a suction port of the hydraulic pump.3. The pump unit according to claim 2 ,wherein the introduction passage connects a tank that stores the hydraulic oil to the suction port in order to supply the hydraulic oil to the hydraulic pump, andthe housing portion is provided between the suction port and the tank in the middle of the introduction passage.4. The pump unit according to claim 1 ,wherein the coupling is cylindrical and has either a plurality of spline grooves and a plurality of serration grooves provided in an inner periphery from one end to the other end along an axial direction in a seamless manner, andthe drive shaft and the shaft have either a plurality of spline teeth fitted to the spline grooves or a plurality of serrated teeth fitted to the serration grooves, and are fitted to the inner periphery of the coupling.5. The pump unit according to claim 1 ,wherein a protruding member protruding inwardly is provided in the middle of the inner periphery of the coupling.6. An actuator comprising:{' ...

UNIAXIAL ECCENTRIC SCREW PUMP

A uniaxial eccentric screw pump includes: a rotor including a shaft body of a male screw type; a stator having a through hole of a female screw type through which the rotor is inserted; a casing connected to one end side of the stator an end stud connected, to the other end side of the stator and a position adjusting member that adjusts a relative position of the stator with respect to the rotor in an axial direction. 1. A uniaxial eccentric screw pump comprising:a rotor including a male threaded shaft body;a stator having a female threaded through hole through which the rotor is inserted;a casing connected to one end side of the stator;an end stud connected to the other end side of the stator; anda position adjusting member that adjusts a relative position of the stator with respect to the rotor in an axial direction.2. The uniaxial eccentric screw pump according to claim 1 , further comprisinga joint part that transmits power from a drive source to the rotor,wherein the position adjusting member is detachably provided at an end part or in a middle of at least one of the rotor, the stator, the casing, and the joint part.3. The uniaxial eccentric screw pump according to claim 1 , wherein the position adjusting member is detachably attached to at least one of a part between the stator and the casing and a part between the stator and the end stud.4. The uniaxial eccentric screw pump according to claim 1 , wherein the position adjusting member is detachably attached to both the part between the stator and the casing and the part between the stator and the end stud.5. The uniaxial eccentric screw pump according to claim 1 , wherein the position adjusting member is detachably provided at a free end claim 1 , a middle claim 1 , or a base part of the rotor.6. The uniaxial eccentric screw pump according to claim 2 , wherein the position adjusting member is detachably provided at an end part or in a middle of the joint part.7. The uniaxial eccentric screw pump according to ...

PUMP STRUCTURE

A pump apparatus may include an inner rotor, a driving shaft, a curved surface formed at an inner circumference portion of the inner rotor into which the driving shaft may be inserted, the curved surface being formed by a plurality of curves along a rotation direction of the driving shaft, and a pressing body slidably engaged in the driving shaft and elastically pressed in a radial direction of the driving shaft by the plurality of curves. 1. A pump apparatus , comprising:an inner rotor;a driving shaft;a curved surface formed at an inner circumference portion of the inner rotor into which the driving shaft is inserted, the curved surface being formed by a plurality of curves along a rotation direction of the driving shaft; anda pressing body slidably engaged in the driving shaft and elastically pressed in a radial direction of the driving shaft by the plurality of curves.2. The pump apparatus of claim 1 , wherein the curved surface of the inner rotor is formed by repeating bent straight lines and is formed at an entire portion of the inner circumference portion in the inner rotor.3. The pump apparatus of claim 2 , wherein the curved surface of the inner rotor includes upper and lower ridges alternatively repeated between the bent straight lines.4. The pump apparatus of claim 1 ,wherein the pressing body includes a spherical ball, andwherein at least a portion of the spherical ball is slidably positioned in the driving shaft in a state in which the spherical ball is selectively pressed toward the curved surface.5. The pump apparatus of claim 1 , further including:a guide groove that is formed in the driving shaft along the radial direction thereof so that the pressing body is movable along the radial direction according to a rotation of the inner rotor; andan elastic member positioned inside the guide groove and applying elastic force to the pressing body against the inner circumference portion of the inner rotor.6. The pump apparatus of claim 5 ,wherein the elastic ...

ECCENTRIC SCREW PUMP

An eccentric screw pump, comprising a rotor that extends along a longitudinal axis of the rotor from a drive end to a free end, a stator housing with an internal cavity that extends along the longitudinal axis from a stator inlet opening to a stator outlet opening and that is designed to accommodate the rotor, a drive motor with a drive shaft that is coupled with the rotor to transmit a torque, a first cardan joint which is placed within the transmission of the torque between the drive shaft and the rotor, and a stator outlet flange that is arranged in flow direction behind the rotor. The stator outlet flange comprises a flange connection plane that is oriented non-vertically to the longitudinal axis. 122-. (canceled)23. An eccentric screw pump , comprising:a rotor which extends along a longitudinal axis of the rotor from a drive end to a free end;a stator housing with an interior space which extends along the longitudinal axis from a stator inlet opening to a stator outlet opening and is designed to accommodate the rotor;a drive motor with a drive shaft which is coupled with the rotor to transmit a torque;a first cardan joint which is placed between the drive shaft and the rotor; anda stator outlet flange which is arranged in a direction of flow behind the rotor,wherein the longitudinal axis runs through the stator outlet flange and the stator outlet flange comprises a flange connection plane that is not oriented vertically to the longitudinal axis.24. The eccentric screw pump according to claim 23 , wherein the flange connection plane sits at an angle to the longitudinal axis which is smaller than 90°.25. The eccentric screw pump according to claim 23 , wherein the flange connection plane sits at an angle to the longitudinal axis which is smaller than (90° arctan(d/l)) claim 23 , and whereind equals an outer diameter of the end of the stator housing located opposite from the flange connection plane, andl equals a length of the stator housing.26. The eccentric ...

Internal gear pump

An internal gear pump for a hydraulic vehicle brake system includes a bearing formed for a pump shaft in a tubular form. The bearing is integrally formed with a housing of the internal gear pump. The bearing is configured to mount a pinion of the internal gear pump rotatably on the bearing. The internal gear pump also includes a catch configured to connect the pinion to the pump shaft for conjoint rotation.

ROTARY ACTUATOR

A rotary actuator includes an output shaft, a housing, a piston, and a friction reducer. The housing includes an arcuate bore that extends around the output shaft. The piston is coupled to the output shaft and moved in the arcuate bore. Pressure fluid acts to move the piston. The friction reducer is configured to reduce friction between a peripheral surface of the piston and an inner circumferential surface of the housing forming the arcuate bore. 1. A rotary actuator comprising:an output shaft;a housing including at least one arcuate bore that extends around the output shaft;at least one piston coupled to the output shaft and moved in the arcuate bore, wherein pressure fluid acts to move the piston; anda friction reducer configured to reduce friction between a peripheral surface of the piston and an inner circumferential surface of the housing forming the arcuate bore.2. The rotary actuator according to claim 1 , whereinthe friction reducer includes a roller that is in contact with the peripheral surface of the piston, andthe roller rolls when the piston moves.3. The rotary actuator according to claim 2 , wherein the roller is supported by a bearing.4. The rotary actuator according to claim 2 , whereinthe peripheral surface of the piston includes an arcuate outer surface, andthe roller is in linear contact with the arcuate outer surface.5. The rotary actuator according to claim 1 , wherein the friction reducer includes a stopper that reduces force pressing the piston against the inner circumferential surface of the housing.6. The rotary actuator according to claim 5 , whereinthe output shaft includes an arm coupled to the piston,the piston and the arm are coupled in an axial direction of the output shaft by a first coupling portion and a second coupling portion,the first coupling portion and the second coupling portion are separated from each other, andat least one of the first coupling portion and the second coupling portion configures the stopper.7. The rotary ...

Coupling Element for an Eccentric Screw Rotor

A coupling element for connecting a helix-shaped eccentric screw pump rotor to a drive shaft, with a drive shaft receiving portion and a rotor connecting portion arranged opposite, which is constituted as a hollow cylinder for receiving a rotor end, wherein the hollow cylinder has at least two inner circumferential surfaces which are complementary to the rotor and have a radius which is fixed with respect to the cross-sectional center of the hollow cylinder. 140a. A coupling element for connecting a helix-shaped eccentric screw pump rotor to a drive shaft , with a drive shaft receiving portion and a rotor connecting portion () arranged opposite , which is constituted as a hollow cylinder for receiving a rotor end , wherein the hollow cylinder has at least two inner circumferential surfaces which are complementary to the rotor and have a radius which is fixed with respect to the cross-sectional centre of the hollow cylinder.2. The coupling element according to claim 1 , wherein at least one surface section with a larger inner radius than the radius is present between the inner circumferential surfaces.3. The coupling element according to claim 1 , wherein the radius of the inner circumferential surfaces is the smallest radius of the inner surfaces of the hollow cylinder.5. The coupling element according to claim 1 , wherein the hollow cylinder is divided in the longitudinal direction.6. The coupling element according to claim 1 , wherein its drive shaft receiving portion is constituted as a cardan hinge receptacle.7. The coupling element according to claim 1 , wherein it is produced by a precision casting process without reworking.8. A rotor connecting device claim 1 , including an eccentric screw pump rotor and a coupling element for connecting a helix-shaped eccentric screw pump rotor to a drive shaft claim 1 , with a drive shaft receiving portion and a rotor connecting portion arranged opposite claim 1 , which is constituted as a hollow cylinder for receiving a ...

MELT PUMPS FOR PRODUCING SYNTHETIC GRANULES, EXTRUDED PROFILES OR MOLDED PARTS

Melt pumps for producing synthetic granules, extruded profiles or molded parts are disclosed. One disclosed example melt pump for building up pressure at a fluid medium is to be used for pressing the medium through a tool. The example melt pump includes a compressor that comprises an inlet and an outlet opening, and at least two worm conveyors disposed in a common housing, where worm flights provided on the worm conveyors are configured in such a manner that a force feed of the medium occurs and where the worm conveyors are drivable by their own drive. 1. A melt pump for building up pressure at a fluid medium , the melt pump for pressing the medium through a tool , comprising:a compressor that comprises an inlet and an outlet opening; andat least two worm conveyors disposed in a common housing, wherein worm flights provided on the worm conveyors are configured in such a manner that a force feed of the medium occurs and wherein the worm conveyors are drivable by their own drive.2. The melt pump as defined in claim 1 , wherein the worm conveyor is configured to have a ratio between the outward diameter (D) and the core diameter (D) is approximately between 1.6 and 2.4.3. The melt pump as defined in claim 1 , wherein the worm flight has a rectangular or trapeze-shaped thread profile.4. The melt pump as defined in claim 3 , wherein the worm flight has a profile angle approximately between 0° and 20°.5. The melt pump as defined in claim 1 , wherein the two worm conveyors are disposed vertically relative to one another.6. The melt pump as defined in claim 1 , further comprising a gear provided between the drive and the compressor claim 1 , wherein the worm conveyors are synchronously drivable.7. The melt pump as defined in claim 6 , wherein the drive and the gear have a rotation speed of the worm conveyors between approximately 30 rpm and 300 rpm.8. The melt pump as defined in claim 1 , wherein the worm flights and the worm conveyors are configured so that they correspond ...

Oil Pump Assembly Arrangement in Cooling Compressor

The present application relates to an oil pump assembly arrangement for cooling compressors. Such invention aims to provide said compressor with a better use of the inner space defined by the housing thereof, in order to allow its miniaturization. To this end, it is proposed that fastening rod, which is able to anchor pin of the oil pump in a fixed portion of electric engine, is supported, in the median portion thereof, in a hole provided next to pin and, in the ends thereof, in respective cribs defined in a fixed portion of electric engine, wherein the housing in these cribs takes place by inner sides thereof and, still, wherein fastening rod extends through free spaces defined between coils, guaranteeing the minimum electrical distances required by rules. 1. Oil pump assembly arrangement in cooling compressor , which comprises a housing within which it is arranged an electric engine which includes a stator carrying a plurality of coils circumferentially spaced apart from each other and a rotor associated to a driving shaft and a pin internally and concentrically arranged with respect to said driving shaft;driving shaft cooperating with pin, so as to define helical channels which delineate the lubricating oil path, when it is pumped due to the relative revolution between driving shaft and pin; anda fastening rod able to anchor said pin in a fixed portion of electric engine;wherein said assembly rod is supported, in the median portion thereof, to pin and, in the ends thereof, in respective cribs defined in fixed portion of electric engine;said assembly arrangement characterized by the fact that:fastening rod extends through free spaces longitudinally aligned with gaps defined between adjacent coils; andends of fastening rod are housed in cribs by the inner sides thereof.2. Oil pump assembly arrangement in cooling compressor according to claim 1 , characterized by the fact that cribs are defined by projections claim 1 , diametrically opposite to each other claim 1 , ...

Positive Displacement Pump

A rotating externally mounted positive displacement pump having at least two displacing bodies which are driven synchronously with respect to one another and are fastened on the end side on associated shafts, the shafts being mounted in each case by way of a first, radially acting bearing and a second, radially and axially acting bearing, and the shafts being coupled to one another by way of a synchronizing gear mechanism, is developed in that the bearings are fitted into seat bores of a housing which is manufactured in one piece, and in that the synchronizing gear mechanism is arranged between the respective bearings. 1. A rotating externally mounted positive displacement pump having at least two displacing bodies which are driven synchronously with respect to one another and are fastened on an end side on associated shafts , the shafts being mounted in each case by way of a first , radially acting bearing and a second , radially and axially acting bearing , and the shafts being coupled to one another by way of a synchronizing gear mechanism , wherein the bearings are fitted into seat bores of a housing which is manufactured in one piece , and in that the synchronizing gear mechanism is arranged between the respective bearings.2. The pump according to claim 1 , wherein the synchronizing gear mechanism has two pinions which mesh with one another and the diameter of which is greater than the axial spacing of the shafts.3. The pump according to claim 2 , wherein the pinions in each case have a toothed rim which is fastened on a supporting body.4. The pump according to claim 3 , wherein a greatest external diameter of the supporting bodies is smaller than the axial spacing of the shafts.5. The pump according to claim 3 , wherein the supporting bodies are fastened on the shafts in a non-positive and/or positively locking manner.6. The pump according to claim 4 , wherein the supporting bodies are fastened on the shafts in a non-positive and/or positively locking manner.7 ...

SCREW SPINDLE PUMP, FUEL PUMP ASSEMBLY, AND FUEL PUMP UNIT

A screw-spindle pump stage having a drive spindle and a running spindle which runs opposite the drive spindle and a pump housing for receiving the two screw spindles. The pump housing has an offset interface with centering action, for a statically determined coupling to an electric motor. The pump housing has an offset section functioning as an abutment, which is able to be abutted against the electric motor for the application of an axial preload. At least one pressure region of the abutment section, which is close to the interface and, during a rolling, is encapsulated, and at the same time sealingly enclosed, by a sheet-metal casing, forms a rolling region of the pump, the screw spindles, together with the associated pump housing section, at least partially project from the rolling region of the pump on the suction side. 119-. (canceled)20. A screw spindle pump comprising a drive spindle; and', 'a running spindle that runs oppositely with respect to the drive spindle;, 'at least two screw spindles, comprisinga pump housing configured to receive the at least two screw spindles;wherein the at least two screw spindles and at least the pump housing form delivery chambers, which move from a suction side of the pump to a pressure side of the pump due to a rotation of the screw spindles;an offset interface with centering action is provided on the pressure side of the pump housing for a statically determined coupling to an electric motor;an offset abutment section functioning as an abutment is formed on the pressure side of the pump housing, which is configured to abut against the electric motor for application of an axial preload;a sheet-metal casing, which forms a rolling region of the pump, encapsulates, and at the same time sealingly encloses, at least one pressure region of the abutment section, which is close to an interface during a rolling;wherein the at least two screw spindles, together with an associated pump housing section, at least partially project from ...

GEAR PUMP AND GEAR ASSEMBLY

A gear pump that is used to pump fluid, such as oil, in a vehicle. The gear pump comprises a gear assembly having a drive shaft including a drive shaft key; a set of drive gears mounted on the drive shaft, with a drive gear of the set of drive gears being keyed with the drive shaft key; a driven shaft including a driven shaft key; a set of driven gears mounted on the driven shaft, with a driven gear of the driven gear set being keyed with the driven shaft key; and a torque drive feature associated with the drive shaft or the driven shaft, wherein the torque drive feature is configured to check keying with the driven shaft key. 1. A gear pump , comprising: a drive shaft including a drive shaft key;', 'a set of drive gears mounted on the drive shaft, wherein a drive gear of the set of drive gears is keyed with the drive shaft key;', 'a driven shaft including a driven shaft key;', 'a set of driven gears mounted on the driven shaft, wherein the set of drive gears is configured to mesh with the set of driven gears to facilitate fluid flow between the set of drive gears and the set of driven gears, wherein a driven gear of the driven gear set is keyed with the driven shaft key; and', 'a torque drive feature associated with the drive shaft or the driven shaft, wherein the torque drive feature is configured to check keying with the driven shaft key., 'a gear assembly having a terminal end and a drive input end, the gear assembly comprising2. The gear pump of claim 1 , wherein the driven shaft key is a single driven shaft key claim 1 , and wherein the driven gear of the driven gear set that is keyed with the driven shaft key is located closer to the drive input end than any other driven gears of the set of driven gears.3. The gear pump of claim 2 , wherein the other driven gears of the set of driven gears are configured to rotate freely with respect to the driven shaft.4. The gear pump of claim 2 , wherein each drive gear of the set of drive gears are keyed to the drive ...

Positive displacement pump with pressure relief

A rotary, self-priming, positive displacement pump is described. The pump may include a pump housing including an inlet and an outlet, a pump chamber including an upper wall, a lateral wall, and a floor, first and second rotary impellers in the pump chamber, and a pair of gears each secured to the first and second rotary impellers, and a pressure relief feature operable to relieve pressure developing in a relatively high pressure zone of the pump chamber. The gears mesh with each other to ensure that the vanes do not contact one another during rotation. The pressure relief feature may comprise one or more channels formed in the pump housing and/or the first and second rotary impellers. The channels connect the high pressure zone with another zone to redistribute pressure. The channels may include one continuous channel or alternatively, a plurality of unconnected channels. 1. A rotary positive displacement pump for pumping fluids , comprising:a pump housing including a pump chamber therein, the pump housing including a fluid inlet and a fluid outlet communicating with the pump housing, and the pump chamber has an upper wall, a lateral wall, and a floor;a first rotary impeller in the pump housing, the first rotary impeller comprising a first shaft including first shaft ends rotatably mounted in the pump housing, the first shaft including a plurality of vanes having contoured faces extending outwardly therefrom;a second rotary impeller in the pump housing, the second rotary impeller comprising a second shaft including second shaft ends rotatably mounted in the pump housing, the second shaft including a plurality of vanes having contoured faces extending outwardly therefrom;a pair of gears each secured to one of the first shaft and the second shaft of the first and second rotary impellers, wherein the gears mesh with each other and synchronize rotation of the first rotary impeller and second rotary impeller to ensure that the vanes do not contact one another during ...

Self-priming positive displacement pump with sectioned dividing wall

A rotary, self-priming, positive displacement pump is described. The pump may include a pump housing having a fluid inlet and outlet, first and second rotary impellers having vanes, an input shaft and drive gears synchronizing the impellers to avoid clash, and a dividing wall separating a pumping chamber from a chamber containing the drive gears. The dividing wall separates the pumping chamber from the gear chamber, partially supports impeller shafts, and is formed in a plurality of abutting manually separable sections. When manually pulled apart, the separable sections free the impeller shafts for manual removal, to facilitate manual service to the pump. 1. A rotary , self-priming , positive displacement pump for pumping fluids , comprising:a pump housing having a fluid inlet and a fluid outlet;a first rotary impeller in the pump housing, the first rotary impeller comprising a first shaft including first shaft ends rotatably mounted in the pump housing, the first shaft including a plurality of vanes extending outwardly therefrom;a second rotary impeller in the pump housing, the second rotary impeller comprising a second shaft including second shaft ends rotatably mounted in the pump housing, the second shaft including a plurality of vanes extending outwardly therefrom;a first gear secured to the first shaft and a second gear secured to the second shaft, wherein the first gear meshes with the second gear and synchronizes rotation of the first rotary impeller and the second rotary impeller to ensure that the vanes of the first shaft do not contact the vales of the second shaft during rotation;a pumping chamber defined within the pump housing and a gear chamber defined within the pump housing; anda dividing wall within the pump housing, wherein the dividing wall separates the pumping chamber from the gear chamber, and is formed in a plurality of abutting manually separable sections.2. The rotary claim 1 , self-priming claim 1 , positive displacement pump of claim 1 , ...

Segmented Positive Displacement Rotor Housing

This disclosure concerns an advanced nutating positive displacement device having a high power to mass ratio and low production cost. This device in one example forms an exemplary pump as will be discussed in detail. The examples disclosed herein are of the rotary positive displacement type, but in a class by themselves. The devices are formed by a nutating rotor having a face comprising lobes and valleys, and a fixed stator also having a face with lobes and valleys. The face of the rotor opposes and cooperates with the face of the stator. The opposing faces define chambers that change volume with rotation of the rotor. 1. A fluid flow apparatus comprising:a. a housing;b. the housing comprised of a first housing portion having a first inner surface and a second housing portion adjacent the first housing portion having a second inner surface defining a rotor cavity;c. a first rotor within the rotor cavity having a first axis aligned with a first shaft having an axis of rotation, a front face comprising lobes and valleys, and a frusta-spherical radially outward surface;d. a second rotor within the rotor cavity having a second axis offset from co-linear to the first axis, a front face comprising lobes and valleys which intermesh with the lobes and valleys of the first rotor;e. an off-axis shaft aligned with the second rotor, fixed to rotate with the first shaft, and having an axis which is offset from the axis of the first rotor;f. wherein the lobes and valleys of the first rotor are substantially in fluid tight seal to the lobes and valleys of the second rotor at least at two points during operation of the fluid flow apparatus; andg. at least one shim positioned adjacent the off-axis shaft so as to re-position the first shaft relative to the second rotor non-collinear with the axis of the first shaft.2. The fluid flow apparatus as recited in further comprising:a. a first surface defining a reference void in the first housing portion in a surface adjacent the second ...

VARIABLE DISPLACEMENT VANE PUMP

A variable displacement vane pump includes first and second sealing grooves formed on an intake port side and separated away from each other in a circumferential direction; first and second sealing members provided in the first and second sealing grooves; a first fluid-pressure chamber formed on a side on which a volume thereof decreases when the cam ring moves to a side on which an eccentricity of the cam ring increases; and a second fluid-pressure chamber formed on a side on which a volume thereof increases when the cam ring moves to a side on which the eccentricity of the cam ring increases; and a control valve configured to control the pressure in the first or second fluid-pressure chamber. 1. A variable displacement vane pump , comprising:a pump housing including a pump-element housing portion;a driving shaft rotatably supported by the pump housing;a rotor provided inside the pump housing so as to be rotationally driven by the driving shaft, the rotor including a plurality of slots arranged in a circumferential direction, which is a direction about a rotation axis of the driving shaft;a plurality of vanes provided in the plurality of slots so as to be projectable therefrom and retractable therein;a cam ring formed so as to have an annular shape, the cam ring being provided so as to be movable inside the pump-element housing portion, the cam ring forming a plurality of pump chambers on an inner circumferential side in cooperation with the rotor and the plurality of vanes;an intake port formed in the pump housing, the intake port having an opening in an intake region, in which volumes of the plurality of pump chambers increase along with the rotation of the rotor;a delivery port formed in the pump housing, the delivery port having an opening in a delivery region, in which the volumes of the plurality of pump chambers decrease along with the rotation of the rotor;a pair of sealing grooves formed on the pump-element housing portion so as to have openings oriented ...

LUBRICATION STRATEGY FOR DRY RUN PUMP SYSTEM

A gerotor pump assembly, and a system and method for operating a gerotor pump assembly, result in a lubrication strategy for operating in a loss-of-prime mode. An inner drive gear may be rotated in a first direction and in a second opposite direction about an axis of rotation. The inner drive gear has a number of projections extending outwardly therefrom. An outer driven gear surrounds the inner drive gear and defines a number of recessions along an inner surface configured to engage with the projections of the inner drive gear. The outer driven gear and the inner drive gear further define at least one dynamically-changing fluid cavity therebetween. The inner drive gear and the outer driven gear define an oil transfer volume clearance between a projection and a recession in a fully engaged position. Oil is maintained within the oil transfer volume clearance as the inner drive gear is rotated. 1. A gerotor pump assembly comprising:a shaft;an inner drive gear coupled to the shaft, the shaft and the inner drive gear being rotatable about an axis of rotation defined along a length of the shaft, the inner drive gear having a plurality of projections extending outwardly along an outer periphery thereof, the inner drive gear defining a pump running face along a side of the inner drive gear, the pump running face defining a lubrication cavity therein;an outer driven gear surrounding the inner drive gear and defining a plurality of recessions along an inner surface configured to engage with the plurality of projections of the inner drive gear, the outer driven gear and the inner drive gear further defining at least one dynamically-changing fluid cavity therebetween, each projection being configured to engage with a recession of the plurality of recessions in a fully engaged position, the inner drive gear and the outer driven gear defining an oil transfer volume clearance between a projection and a recession in the fully engaged position, the outer driven gear having a ...

Multiple Segment Lobe Pump

Designs for multiple segment lobe pumps are shown. The designs include pumps using rotors having two lobes to a plurality of lobes and segments that include two segments to a plurality of segments. Designs for both vertical, or straight walled conventional lobed rotors, as well as helical lobe rotors are shown. The designs are applicable to a variety of rotors and number of segments. In one particular case the designs enable a three lobe helical pump. Designs are also shown for separator plates used between the multiple segments. The separator float between the pairs of lobes in a segment and can also have a fixed position between the lobes by inclusion of end pieces that enable clamping of the separator plates in position. 1. A lobe pump comprising:a) a housing forming a pump chamber, said housing having ends, an inlet and an outlet and walls, the walls having a height, an inner surface and an outer surface, and,b) end covers that removable attach to each end of the housing and thereby seal the pump chamber,c) a first shaft and a second shaft, the shafts being elongated cylinders, the first shaft extending beyond a wall of the housing such that it is rotated by a motor, the shafts fixed within the housing such that their long axes are parallel, the shafts coupled through use of timing gears affixed to a first end of each shaft such that rotation of the first shaft by the motor causes the second shaft to rotate, i) a first lobe rotor having a center, a top surface, a bottom surface, sidewalls and a plurality of lobes symmetrically extending from the center, the lobes extended at a lobe separation angle from one another, the first lobe rotor fixedly attached to the first shaft through the center of the rotor such that rotation of the first shaft causes the first lobe rotor to rotate,', 'ii) a second lobe rotor having a center, a top surface, a bottom surface, sidewalls and a plurality of lobes symmetrically extending from the center, the lobes extended at a lobe ...

Water Pump For Marine Engine Having Tool For Replacing Impeller

A water pump for a marine engine includes a cap covering an internal cavity of the pump's housing when the pump is operating. The cap functions as a tool to remove a damaged or worn impeller from inside the internal cavity. A threaded hub of the cap engages internal threads of the impeller to assist a user in removing the impeller for replacement. A cap lock ring threaded onto the pump housing retains the cap over the internal cavity. A rotatable drive shaft has splines which mate with a splined portion of the impeller to rotate the impeller. The cap lock ring is disengaged from the housing and the cap removed to enable a person to use the threaded hub of the cap to remove the impeller.

Pump

A pump including a rotor; a first housing part and a second housing part, between which the rotor is arranged such that it can be rotated about a rotational axis relative to the first and second housing part; at least one positioning element which positions the second housing part with respect to its angular position about the rotational axis relative to the first housing part; and a spring, wherein the second housing part is arranged between the spring and the rotor, wherein the spring is fastened to the at least one positioning element or the second housing part.

COMPRESSOR

Disclosed is a scroll type compressor having an Oldham's ring having an asymmetrical structure with respect to a long or minor axis thereof.

Rotary Piston Pump, Method For Fixing Rotary Pistons Of A Rotary Piston Pump And Method For Dismantling Rotary Pistons Of A Rotary Piston Pump

A method for fixing rotary pistons in a rotary piston pump and a method for dismantling rotary pistons of a rotary piston pump, where the rotary piston pump has two counter-rotating rotary arranged in a pump space on drive shafts. The rotary pistons each include a seating for the drive shafts. The respective drive shaft is arranged and fixed with an end region in the seating of the respective rotary piston. A diameter of the drive shafts in the end region can be widened elastically. In an operational state, in which the rotary pistons are arranged on the respective drive shafts, a frictional connection is formed between the respective seating of the rotary piston and the end region of the respective drive shaft.

ECCENTRIC SCREW PUMP

An eccentric screw pump, comprising a rotor that extends along a longitudinal axis of the rotor from a drive end to a free end, a stator housing with an internal cavity that extends along the longitudinal axis from a stator inlet opening to a stator outlet opening and that is designed to accommodate the rotor, a drive motor with a drive shaft that is coupled with the rotor to transmit a torque, a first cardan joint which is placed within the transmission of the torque between the drive shaft and the rotor, and a stator outlet flange that is arranged in flow direction behind the rotor. The stator outlet flange comprises a flange connection plane that is oriented non-vertically to the longitudinal axis. 1. Eccentric screw pump , comprising:A rotor which extends along a longitudinal axis of the rotor from a drive end to a free endA stator housing with an interior space which extends along the longitudinal axis from a stator inlet opening to a stator outlet opening and is designed to accommodate the rotor,A drive motor with a drive shaft which is coupled with the rotor to transmit a torque,A first cardan joint which is placed in the transmission of the torque between the drive shaft and the rotor,A stator outlet flange which is arranged in the direction of flow behind the rotor,wherein the stator outlet flange comprises a flange connection plane that is not oriented vertically to the longitudinal axis.2. Eccentric screw pump , comprising:A rotor which extends along a longitudinal axis of the rotor from a drive end to a free endA stator housing with an interior space which extends along the longitudinal axis from a stator inlet opening to a stator outlet opening and is designed to accommodate the rotor,A drive motor with a drive shaft which is coupled with the rotor to transmit a torque,A first cardan joint which is placed in the transmission of the torque between the drive shaft and the rotor,A stator inlet flange which is arranged in the direction of flow in the area ...

Vane pump

A vane pump includes a pump rotor having a through hole to which a driving shaft is coupled, a pump housing configured to accommodate the pump rotor and the cam ring, and a first side plate provided between the pump rotor and a bottom surface of the pump housing. The first side plate or the pump housing is formed with a projection, the projection is inserted into the through hole of the pump rotor.

WATER PUMP ASSEMBLY

A water pump assembly includes a lower housing configured for being positioned within a well. The lower housing includes a bladder therein. The bladder expands to force water within the housing into an outlet of a valve apparatus and the bladder contracts to draw water into the housing. A cylinder and piston fluidly coupled to an inlet of the valve apparatus and the inlet is fluidly coupled to the bladder. A one way valve is positioned within the valve apparatus and fluidly connects an inlet chamber including the inlet to an outlet chamber including the outlet. The one way valve allows water to flow from the outlet chamber into the inlet chamber and restricts water from flowing from the inlet chamber into the outlet chamber. An outlet conduit is fluidly coupled to the outlet of the valve apparatus to carry the water where desired. 1. A pump assembly comprising:a lower housing configured for being positioned within a well, said lower housing including a bladder therein, said bladder expanding to force water within said housing into an outlet of a valve apparatus, said bladder contracting to draw water into said housing;a cylinder and piston being fluidly coupled to an inlet of said valve apparatus, said inlet being fluidly coupled to said bladder;a one way valve being positioned within said valve apparatus and fluidly connecting an inlet chamber including said inlet and an outlet chamber including said outlet, said one way valve allowing water to flow from said outlet chamber into said inlet chamber and restricting water from flowing from said inlet chamber into said outlet chamber; andan outlet conduit being fluidly coupled to said outlet of said valve apparatus.2. A pump assembly comprising:a lower housing configured to be positioned into a well, said lower housing having an upper end, a lower end and a perimeter wall extending between said upper and lower ends;a one way valve being positioned in said lower housing adjacent to said lower end and being configured ...

Pump for Torque Transfer Device

A torque transfer device for a powertrain of a vehicle includes a shaft, a pump, and an actuator. The shaft transfers torque from a drive source to a wheel of the vehicle. The pump includes a rotary component and a housing that surround the shaft. The rotary component is selectively coupleable to the shaft to be rotated thereby to operate the pump. The actuator includes a cam mechanism that selectively couples the rotary component to the shaft. 1. A torque transfer device for a powertrain of a vehicle comprising:a shaft for transferring torque from a drive source to a wheel of the vehicle;a pump comprising a rotary component and a housing that surrounds the shaft, wherein the rotary component is selectively rotatably coupleable to the shaft to be rotated thereby to operate the pump; andan actuator comprising a cam mechanism that selectively moves the annular member to rotatably couple the rotary component to the shaft.2. The torque transfer device according to claim 1 , wherein the pump is selectively coupleable to the shaft with at least one of a friction coupling or a mechanical coupling.3. The torque transfer device according to claim 2 , wherein the pump is selectively coupleable to the shaft with a friction coupling.4. The torque transfer device according to claim 3 , wherein the pump is selectively coupleable to the shaft with a mechanical coupling.5. The torque transfer device according to claim 1 , wherein the cam mechanism includes a motor and a cam member that is rotated by the motor for coupling the rotary component to the shaft.6. The torque transfer device according to claim 5 , further comprising at least one of a gear reduction mechanism or a secondary torque transfer mechanism claim 5 , wherein the cam mechanism includes another cam member that is rotated by the motor for operating the gear reduction mechanism or the secondary torque transfer mechanism.7. The torque transfer device according to claim 6 , further comprising the gear reduction ...

CAMSHAFT PHASE REGULATOR

The present disclosure provides a camshaft phase adjuster, including: a stator provided with a plurality of hydraulic chambers; a rotor rotatably disposed in the stator and provided with a basic body and a plurality of blades fixed to the basic body, the basic body has a first end surface and the second end surface which face opposite directions along an axial direction, the plurality of blades are arranged in intervals along the circumferential direction and divide the hydraulic chambers into first pressure chambers and second pressure chambers, respectively; wherein the basic body is provided with a plurality of first oil holes and a plurality of second oil holes which are communicated with the first pressure chambers and the second pressure chambers, respectively, the second oil hole is provided with at least two oil sub-holes, a first oil sub-hole extends along a radial direction of the basic body and is located on a same plane, with the first oil hole, perpendicular to a central axis of the rotor, the first oil sub-hole communicates with the second pressure chamber, and the second oil sub-hole penetrates through the first end surface along an axial direction of the basic body. Accordingly, technical solution of the present disclosure solves the problems of large in axial dimension and great in mass of existing camshaft phase adjusters. 1. A camshaft phase adjuster , comprising:a stator provided with a plurality of protrusions, wherein the plurality of protrusions are arranged in intervals along a circumferential direction and extend inwardly along a radial direction, and hydraulic chambers are defined between neighboring ones of the plurality of protrusions;a rotor rotatably disposed in the stator, the rotor comprises a basic body and a plurality of blades fixed to the basic body, the basic body has a first end surface and a second end surface which face opposite directions along an axial direction, the plurality of blades are arranged in intervals along the ...

ANTI-DECOMPRESSION GEAR FUEL PUMP FOR BROKEN BUBBLES

The present invention discloses an anti-decompression gear fuel pump for broken bubbles, characterized by comprising: a drive motor; and a pump body and a pump cover successively installed on the top end of the drive motor, wherein the pump body is provided with a groove, and a driving gear, a left driven gear and a right driven gear which are installed in the groove and are linked through a motor shaft of the drive motor; meanwhile, the driving gear is respectively internally engaged with the left driven gear and the right driven gear; the pump cover is provided with an A end of a fuel outlet, a D end of a circulating fuel outlet, a B end of a circulating fuel inlet, and a C end of a fuel inlet; and the A end of the fuel outlet, the D end of the circulating fuel outlet, the B end of the circulating fuel inlet, and the C end of the fuel inlet are penetrated into the groove of the pump body. The anti-decompression gear fuel pump for broken bubbles, designed in the present invention, not only solves a decompression problem generated because bubbles appear in a fuel pipeline, but also has scientific and reasonable structure. 1123124561456378910789102. An anti-decompression gear fuel pump for broken bubbles , characterized by comprising: a drive motor (); and a pump body () and a pump cover () successively installed on the top end of the drive motor () , wherein the pump body () is provided with a groove , and a driving gear () , a left driven gear () and a right driven gear () which are installed in the groove and are linked through a motor shaft of the drive motor (); meanwhile , the driving gear () is respectively internally engaged with the left driven gear () and the right driven gear (); the pump cover () is provided with an A end () of a fuel outlet , a D end () of a circulating fuel outlet , a B end () of a circulating fuel inlet , and a C end () of a fuel inlet; and the A end () of the fuel outlet , the D end () of the circulating fuel outlet , the B end () of ...

Rotary fluid pressure device with drive-in-drive valve arrangement

A rotary fluid pressure device, such as a low-speed, high-torque gerotor motor, is provided with a valve drive shaft that is partially inserted into and engaged with a main drive shaft as the main drive shaft engages a rotating output shaft and engages a rotating and orbiting star member of a positive displacement device. The device is also provided with a drive retainer configured to retain the engagement of the main drive shaft and the valve drive shaft.

TWO ROTOR VANE PUMP

A vane pump includes a first cam ring and a second cam ring, a first rotor positioned in the first cam ring and a second rotor positioned in the second cam ring, and a shaft. The first rotor is engaged with the shaft so that the first rotor rotates relative to the first cam ring about an axis extending through the shaft, and the second rotor selectively engages with the shaft so that the second rotor selectively rotates relative to the second cam ring about the axis. A piston positioned in the shaft translates within the shaft between a first positon and a second position. When in the first position, the shaft engages with the second rotor so that the second rotor rotates relative to the second cam ring about the axis, and when in the second position, the shaft disengages with the second rotor so that the second rotor does not rotate relative to the second cam ring. 1. A vane pump comprising:a first cam ring and a second cam ring;a first rotor positioned in the first cam ring and a second rotor positioned in the second cam ring;a shaft, the first rotor being engaged with the shaft so that the first rotor rotates relative to the first cam ring about an axis extending through the shaft, and the second rotor being selectively engaged with the shaft so that the second rotor selectively rotates relative to the second cam ring about the axis;a piston positioned in the shaft, the piston configured to translate within the shaft between a first positon and a second position,wherein in the first position, the shaft engages with the second rotor so that the second rotor rotates relative to the second cam ring about the axis, and in the second position, the shaft disengages with the second rotor so that the second rotor does not rotate relative to the second cam ring.2. The vane pump of further comprising a dog clutch positioned about the shaft claim 1 , the shaft engaging and disengaging with the second rotor with the dog clutch.3. The vane pump of wherein the shaft includes a ...

Rotary lobe pump

Elastic shaft coupling

Trochoidal-pressure pump for feeding the high-viscosity liquid

Disclosed is a trochoid pump for transporting a high-pressure high-viscosity liquid. The trochoid pump according to the present invention includes a rotating idler that is coupled with an inner through-hole inside housing; a rotor that is inserted into the idler; and a shaft that rotates the rotor. The idler is configured with an internal gear groove into which the rotor is inserted and multiple protruding teeth are provided being formed and a concave groove having a predetermined depth being formed in a circumferential direction on an outer circumferential surface. According to the present invention, the trochoid pump for transporting a high-viscosity liquid is structured to have an inner rotating body groove unlike gear pumps or trochoid pumps of the related art. Accordingly, a viscous friction force of the high-viscosity liquid can be reduced. Also, a spline is processed before shaft coupling so as to ensure strength of a shaft corresponding to a high torque and a roller bearing is applied so as to support high pressure-based shaft bending, thus pump driving power can be reduced, size and weight reduction are allowed, and mounting on various industrial robot arms is allowed. In addition, various applications are available with a high output variable range.

Device for application of coating

FIELD: machine building. SUBSTANCE: external row of valves of paint changing device (14) contains at least two separate output of colour and sprayer (1). In addition to inputs of paint of internal row of valves of the paint changing device (3) sprayer (1) contains at least two other inputs of paint (20, 21). The external row of valves of the paint changing device (14) is connected to them. There are two back valves (RA, RB). They facilitate return of coating material at each output of paint of the external row of the valves of the paint changing device. EFFECT: reduced losses of paint during changing colours and time at change of paint. 13 cl, 12 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 429 919 (13) C2 (51) МПК B05B 12/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2008149126/05, 02.05.2007 (24) Дата начала отсчета срока действия патента: 02.05.2007 (73) Патентообладатель(и): ДЮРР СИСТЕМЗ ГМБХ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 15.05.2006 DE 102006022570.8 (72) Автор(ы): ХЕРРЕ Франк (DE) (43) Дата публикации заявки: 20.06.2010 Бюл. № 17 2 4 2 9 9 1 9 (45) Опубликовано: 27.09.2011 Бюл. № 27 2 4 2 9 9 1 9 R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 15.12.2008 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: ЕР 1502657 А2, 02.02.2005. ЕР 0184933 А2, 18.06.1986. WO 8401312 A1, 12.04.1984. ЕР 0373749 A1, 20.06.1990. SU 1430113 A1, 15.10.1988. SU 1479128 A1, 15.05.1989. SU 1659116 A1, 30.06.1991. (86) Заявка PCT: EP 2007/003874 (02.05.2007) (87) Публикация заявки РСТ: WO 2007/131636 (22.11.2007) Адрес для переписки: 129090, Москва, ул.Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат. пов. А.В.Мицу, рег.№ 364 (54) УСТРОЙСТВО ДЛЯ НАНЕСЕНИЯ ПОКРЫТИЯ (57) Реферат: Изобретение касается устройства для нанесения покрытия, в частности для покрытия лаком кузовов автомобилей. Внешний ряд клапанов ...

Single-shaft eccentric screw pump

본 발명의 과제는 플렉시블 로드와 로터를 덜걱거림이 발생하지 않도록 용이하게 연결 가능한 동시에, 프레팅 마모, 응력 집중에 수반하는 축의 파손 및 유동물의 침입에 의한 부식 등의 문제를 방지 가능한 1축 편심 나사 펌프의 제공을 목적으로 하였다. 1축 편심 나사 펌프에 있어서는, 플렉시블 로드(62)와 로터(30)가 연결 구조부(100)를 통해 접속되어 있다. 연결 구조부(100)는 로터(30)의 단부면(112)에 형성된 축 삽입 구멍(110)에 대해, 플렉시블 로드(62)의 선단에 설치된 나사 축부(104)를 삽입하여 나사 결합시킨 것이다. 연결 구조부(100)에 있어서 플렉시블 로드(62)측의 플랜지부(102)와, 로터(30)측의 단부면이 면 접촉하고 있다.

Device for producing polymer pellets, extruded profiles or mouldings and melt pump therefor

The invention concerns a device for producing polymer pellets, extruded profiles or mouldings, comprising an extruder for producing a polymer melt, comprising a melt pump (2) for building up pressure for the purpose of forcing the polymer melt through a die and comprising the die for creating the pellet, the extruded profile or the moulding, wherein the melt pump (2) is formed separately from the extruder and has a drive (5) of its own. Providing such a device for producing polymer pellets, extruded profiles or mouldings in which the extruder does not need a pressure increasing unit is achieved by the transfer of the polymer melt from the extruder to the melt pump (2) taking place in a pressureless or almost pressureless manner.

Device for producing polymer pellets, extruded profiles or mouldings and melt pump therefor

本发明涉及一种用于制造塑料颗粒、挤出型材或成型件的设备，所述设备包括：用于产生塑料熔体的螺旋式机器、为将塑料熔体挤压通过模具而建立压力的熔体泵(2)、以及用于形成颗粒、挤出型材或成型件的模具，其中熔体泵(2)构造成与螺旋式机器分离且具有自己的驱动装置(5)。用于制造塑料颗粒、挤出型材或成型件的这种设备中，螺旋式机器在没有增压单元的情况下也够用，且这种设备由此实现了，塑料熔体被以无压或近似无压的方式从螺旋式机器传递至熔体泵(2)。

Device for producing polymer pellets, extruded profiles or mouldings and melt pump therefor

본 발명은 폴리머 펠릿, 압출재 또는 몰딩 제품을 제조하기 위한 장치에 관한 것으로서, 이 장치는 폴리머 용융물을 발생시키기 위한 압출기, 폴리머 용융물을 다이(die)를 통해서 밀어주기 위한 압력을 구성하기 위한 용융물 펌프(2) 그리고 펠릿, 압출재 또는 몰딩 제품을 제작하기 위한 다이를 구비하며, 이 경우 상기 용융물 펌프(2)는 압출기로부터 분리된 상태로 형성되었고, 자체 구동 장치(5)를 구비한다. 압출기가 압력 증가 유닛 없이도 충분히 기능을 할 수 있는 상기와 같은 폴리머 펠릿, 압출재 또는 몰딩 제품을 제조하기 위한 장치의 제공은 폴리머 용융물을 압출기로부터 용융물 펌프(2)로 전달하는 과정이 무압력 상태에서 또는 거의 무압력 상태에서 이루어짐으로써 성취된다. The present invention relates to an apparatus for producing polymer pellets, extruded materials or molded articles, comprising an extruder for generating a polymer melt, a melt pump for constituting a pressure for pushing the polymer melt through a die 2) and a die for producing pellets, extrudates or molding products, in which case the melt pump 2 is formed separate from the extruder and has its own drive device 5. The provision of such an apparatus for producing polymer pellets, extruded materials or molded products, in which the extruder can function well without a pressure increasing unit, is advantageous in that the process of transferring the polymer melt from the extruder to the melt pump 2 is carried out under pressure And is accomplished in a substantially zero pressure state.

A device for manufacturing synthetic granules, extruded profiles or molded parts and melt pump therefor

本發明之目標係用於製造合成顆粒、擠塑型材或模製部件之裝置，其具有用於產生塑膠熔融液之螺桿機，具有用於積聚壓力以壓迫該塑膠熔融液穿過工具之熔融液泵(2)，且具有用於產生該等顆粒、該擠塑型材或該模製部件之該工具，其中該熔融液泵(2)經設計以自該螺桿機脫離且具有其自身驅動器(5)。產生此一裝置用於製造合成顆粒、擠塑型材或模製部件，其中該螺桿機不具有增壓單元，此係藉由在正常壓力或接近正常壓力下將該塑膠熔融液自該螺桿機轉移至該熔融液泵(2)來達成。

Device for producing polymer pellets, extruded profiles or mouldings and melt pump therefor.

La presente invención se relaciona con un dispositivo para la producción de granulado de plástico, de perfiles extrudidos o de partes moldeadas, teniendo un engranaje sinfín para la generación de un plástico fundido, teniendo una bomba de masa fundida (2) para la generación de presión con el fin de forzar la masa fundida de plástico a través de una herramienta, y teniendo la herramienta para la producción del granulado, del perfil extrudido o de la parte moldeada, la bomba de masa fundida (2) siendo formada por separado del engranaje sinfín y teniendo su propio accionamiento (5). Se logra la creación de semejante dispositivo para la producción de granulado de plástico, de perfiles extrudidos o de partes moldeadas, en el cual el engranaje sinfín puede prescindir de una unidad de incremento de presión, porque la entrega del plástico fundido del engranaje sinfín a la bomba de masa fundida (2) se realiza sin presión o casi sin presión.

Metering pump

The present invention relates to a thermosetting metering pump for transferring a resin, reducing a contact area between a driving shaft and a driving gear or a driven shaft and a driven gear to restrain generation of excessive friction heat in a contact portion. According to the present invention, the thermosetting metering pump for transferring a resin comprises: front side and rear side bodies (10, 20); a casing disposed between the front side body and the rear side body (10, 20) and having a space unit (105) where the driving gear (310) and the driven gear (320) are mounted; the driving shaft (200) supporting the driving gear (310) to be rotated; and the driven shaft (250) supporting the driven gear (320) to be rotated.

Vane type lubricating oil pump

本发明提供一种叶片式机油泵，包括：转子，其包括多个狭缝；壳体，其具有内周凸轮面，并在所述转子的旋转方向上区分设置随着所述转子的旋转而将机油吸入排出的第一泵部以及第二泵部；多个叶片，其分别被嵌入配置在所述转子的所述多个狭缝内；调压装置，其被构成为，与所述第一泵部的第一喷出压力相比而将所述第二泵部的第二喷出压力调压为低压。在所述壳体中设置有背压槽，所述背压槽被构成为，向所述狭缝的底部供给背压机油。

A rotary displacement pump with space-saver radial and a heart prosthesis including the same

본 발명에 따르면, 회전 펌프는 다람쥐장의 형태로 형성되고 내부 치(16)를 갖는 외부 기어(13) 및 상기 외부 기어(13)의 내부에서 중심을 벗어난 방식으로 수용되는 내부 기어(9)로 구성된다. 상기 내부 기어(9)는 상기 내부 치(16)와 서로 맞물리는 외부 치(9D)에 의해 끼워 맞춰지고, 상기 외부 치는 상기 내부 치의 치 개수에 대하여 한 자리수 아래의 치 개수로 구성된다. 상기 외부 기어(13)의 회전 수단은 상기한 외부 기어(13)의 플랜지 단부(14, 15)의 중심에 설계되는 적어도 하나의 베어링(11, 12)을 포함하며, 상기한 외부 기어(13)는 내부 기어(9)를 도입시키기 위하여 적어도 부분적으로 해체된다. 회전변위펌프, 외부기어, 내부기어, 치, 회전수단, 심장보철물, 엑추에이터 According to the invention, the rotary pump consists of an outer gear 13 formed in the form of a squirrel field and having an inner tooth 16 and an inner gear 9 accommodated in an off-centered manner inside the outer gear 13. do. The inner gear 9 is fitted by an outer tooth 9D which meshes with the inner tooth 16, and the outer tooth consists of a number of teeth one digit below the number of teeth of the inner tooth. The rotating means of the outer gear 13 comprises at least one bearing 11, 12 designed in the center of the flange ends 14, 15 of the outer gear 13, the outer gear 13 being described above. Is at least partly dismantled to introduce the internal gear 9. Rotary displacement pump, external gear, internal gear, tooth, rotation means, heart prosthesis, actuator

Positive-displacement rotary pump of small radial sizes

FIELD: engines and pumps. SUBSTANCE: proposed pump consists of squirrel-cage outer gear wheel 13 with multiple inner gears 16 and inner gear wheel 9 fitted shifted relative to the center of and inside said outer gear wheel 13 and furnished with multiple outer teeth in mesh with inner teeth 16. Said gear wheel 9 has the number of teeth smaller by one than that of gear wheel 13. Drive rotating multiple outer teeth 13 comprises bearings 11 fitted at the center of flanges of faces 14, 15 of outer gear wheel 13. The latter can be partially knocked down for inner gear wheel 9 to be fitted therein. EFFECT: reduced radial sizes, possibility to fit inner gear wheel into remove from outer gear wheel. 9 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 396 461 (13) C2 (51) МПК F04C 2/10 (2006.01) A61M 1/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2008144573/06, 07.05.2007 (24) Дата начала отсчета срока действия патента: 07.05.2007 (73) Патентообладатель(и): КАРМА (FR) (45) Опубликовано: 10.08.2010 Бюл. № 22 2 3 9 6 4 6 1 (56) Список документов, цитированных в отчете о поиске: FR 2760973 A1, 25.09.1998. RU 53372 U1, 10.05.2006. EP 0560709 A2, 15.09.1993. DE 3709901 A1, 06.10.1988. DE 8121531 U1, 10.10.1985. EP 0324669 A1, 19.07.1989. (85) Дата перевода заявки PCT на национальную фазу: 11.11.2008 2 3 9 6 4 6 1 R U (87) Публикация PCT: WO 2007/135261 (29.11.2007) C 2 C 2 (86) Заявка PCT: FR 2007/000778 (07.05.2007) Адрес для переписки: 129090, Москва, ул.Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. А.В.Мицу, рег.№ 364 (54) РОТОРНЫЙ ОБЪЕМНЫЙ НАСОС С МАЛЫМИ РАДИАЛЬНЫМИ РАЗМЕРАМИ (57) Реферат: Изобретение относится к роторному объемному насосу с малыми радиальными размерами. Роторный насос состоит из внешнего зубчатого колеса 13 с множеством внутренних зубьев 16 в виде беличьей клетки и внутреннего зубчатого колеса 9, размещенного со смещением ...

SUBMERSIBLE PUMP FOR DRILLING WELL

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2003 135 866 (13) A F 04 B 1/00 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2003135866/06, 11.12.2003 (71) Çà âèòåëü(è): ÍÅÖØ ÎÉËÔÈËÄ ÏÐÎÄÀÊÒÑ ÃÌÁÕ (DE) (30) Ïðèîðèòåò: 13.12.2002 DE 10258666.7 (43) Äàòà ïóáëèêàöèè çà âêè: 20.05.2005 Áþë. ¹ 14 (74) Ïàòåíòíûé ïîâåðåííûé: Âåñåëèöêà Èðèíà Àëåêñàíäðîâíà A 2 0 0 3 1 3 5 8 6 6 R U Ñòðàíèöà: 1 RU A Ôîðìóëà èçîáðåòåíè 1. Ïîãðóæíîé íàñîñ äë èñïîëüçîâàíè â áóðîâîé ñêâàæèíå, âûïîëíåííûé â âèäå ÷åðâ ÷íîãî èëè îäíîâèíòîâîãî íàñîñà, ñîåäèíåííîãî ñ ïðèâîäîì, îòëè÷àþùèéñ òåì, ÷òî ìåæäó íèçêîîáîðîòíûì ïðèâîäîì è íàñîñîì óñòàíîâëåíî âîñïðèíèìàþùåå îñåâûå è ðàäèàëüíûå óñèëè ñîåäèíèòåëüíîå çâåíî, à äèàìåòð ýòîãî ñîåäèíèòåëüíîãî çâåíà è íàñîñà íå ïðåâûøàåò 100 ìì. 2. Ïîãðóæíîé íàñîñ ïî ï.1, îòëè÷àþùèéñ òåì, ÷òî ñîåäèíèòåëüíîå çâåíî ñîñòîèò èç ïîäøèïíèêîâîãî óçëà (8) ñ ðàäèàëüíûì ïîäøèïíèêîì (14) è óïîðíûìè ïîäøèïíèêàìè (12). 3. Ïîãðóæíîé íàñîñ ïî ï.2, îòëè÷àþùèéñ òåì, ÷òî ïîäøèïíèêîâûé óçåë (8) îñíàùåí êîìïåíñàòîðîì (16). 4. Ïîãðóæíîé íàñîñ ïî ï.3, îòëè÷àþùèéñ òåì, ÷òî íà îáîèõ êîíöàõ ïîäøèïíèêîâîãî óçëà (8) ïðåäóñìîòðåíû óïëîòíåíè (22, 24). 5. Ïîãðóæíîé íàñîñ ïî ï.1, îòëè÷àþùèéñ òåì, ÷òî ìîùíîñòü ïðèâîäà íå ïðåâûøàåò 25 êÂò. 2 0 0 3 1 3 5 8 6 6 (54) ÏÎÃÐÓÆÍÎÉ ÍÀÑÎÑ ÄËß ÏÐÈÌÅÍÅÍÈß Â ÁÓÐÎÂÎÉ ÑÊÂÀÆÈÍÅ R U Àäðåñ äë ïåðåïèñêè: 101000, Ìîñêâà, Ì.Çëàòîóñòèíñêèé ïåð., ä.10, êâ.15, "ÅÂÐÎÌÀÐÊÏÀÒ", È.À.Âåñåëèöêîé (72) Àâòîð(û): ÀÉÒËÅРɸðã (DE), ÄÈÒÒÐÈÕ Éîõåí (DE)

ROTARY VOLUMETRIC PUMP WITH REDUCED RADIAL SIZE

- Pompe volumétrique rotative à encombrement radial réduit.- Selon l'invention, la pompe volumétrique rotative comporte un engrenage extérieur (13) à denture interne (16), en forme de cage d'écureuil ; et un engrenage intérieur (9), logé de façon excentrée à l'intérieur dudit engrenage extérieur (13) et pourvu d'une denture externe (9D) engrenant avec ladite denture interne (16) et comportant un nombre de dents inférieur d'une unité au nombre de dents de cette dernière. Les moyens de rotation dudit engrenage extérieur (13) comportent au moins un palier (11, 12) agencé centralement dans un flasque d'extrémité (14, 15) dudit engrenage extérieur (13) ; et ledit engrenage extérieur (13) est au moins en partie démontable pour pouvoir y introduire ledit engrenage intérieur (9). - Rotating volumetric pump reduced radial size.- According to the invention, the rotary positive displacement pump comprises an outer gear (13) with internal teeth (16) in the form of a squirrel cage; and an inner gear (9), eccentrically housed within said outer gear (13) and provided with an external toothing (9D) meshing with said internal toothing (16) and having a lower number of teeth of a unit to the number of teeth of the latter. The rotation means of said external gear (13) comprise at least one bearing (11, 12) arranged centrally in an end flange (14, 15) of said external gear (13); and said outer gear (13) is at least partly removable for insertion of said inner gear (9).

Single-shaft eccentric screw pump

본 발명의 과제는 플렉시블 로드와 로터를 덜걱거림이 발생하지 않도록 용이하게 연결 가능한 동시에, 프레팅 마모, 응력 집중에 수반하는 축의 파손 및 유동물의 침입에 의한 부식 등의 문제를 방지 가능한 1축 편심 나사 펌프의 제공을 목적으로 하였다. 1축 편심 나사 펌프에 있어서는, 플렉시블 로드(62)와 로터(30)가 연결 구조부(100)를 통해 접속되어 있다. 연결 구조부(100)는 로터(30)의 단부면(112)에 형성된 축 삽입 구멍(110)에 대해, 플렉시블 로드(62)의 선단에 설치된 나사 축부(104)를 삽입하여 나사 결합시킨 것이다. 연결 구조부(100)에 있어서 플렉시블 로드(62)측의 플랜지부(102)와, 로터(30)측의 단부면이 면 접촉하고 있다. Disclosure of Invention An object of the present invention is to provide a flexible shaft and a rotor which can be easily connected so as not to cause rattling and can prevent problems such as fretting wear and damage to the shaft due to stress concentration, And a screw pump. In the uniaxial eccentric screw pump, the flexible rod 62 and the rotor 30 are connected to each other through the connection structure 100. The connection structure 100 is formed by screwing a screw shaft portion 104 provided at the tip of the flexible rod 62 into the shaft insertion hole 110 formed in the end surface 112 of the rotor 30. The flange portion 102 on the side of the flexible rod 62 in the connection structure portion 100 is in surface contact with the end surface on the rotor 30 side.

Oil pump for automatic transmission

자동변속기용 오일펌프가 개시된다. 본 발명의 일 실시 예에 따른 자동변속기용 오일펌프는 내부에 다수의 오일유로를 형성하는 하우징; 상기 하우징의 일측에 조립되어 구동축을 통하여 회전동력을 제공하는 구동원; 및 상기 구동축과 동축 선상의 상기 하우징의 양측에 각각 구성되어 상기 동축 선상에 구성되는 동력 연결축을 통하여 상호 동력 연결되어 상기 구동축의 동력을 전달받아 오일을 펌핑하는 2개의 펌프;를 포함하며, 상기 구동축은 상기 2개의 펌프 중, 하나의 펌프 상의 인너로터의 중심에 삽입되어 동력 연결됨과 동시에, 다른 하나의 펌프의 인너로터와 연결된 상기 동력 연결축의 일단부와 선단 사이에 삽입 체결부를 형성하여 동력 연결된다. An oil pump for an automatic transmission is disclosed. An oil pump for an automatic transmission according to an embodiment of the present invention includes: a housing defining a plurality of oil passages therein; A driving source which is assembled to one side of the housing and provides rotational power through a driving shaft; And two pumps which are respectively disposed on both sides of the housing coaxial with the drive shaft and are connected to each other via a power connection shaft formed on the coaxial line to pump the oil by receiving the power of the drive shaft, Is inserted in the center of the inner rotor on one of the two pumps and is power-connected, and an insertion fastening portion is formed between one end and the tip of the power coupling shaft connected to the inner rotor of the other pump to be power-connected .

Vane pump

叶片泵(100)包括：泵转子(31)，其具有与驱动轴(4)连结的贯通孔(31a)；泵壳(40)，其用于收纳泵转子(31)和定子(33)；以及第1侧板(36)，其配置在泵转子(31)和泵壳(40)的底面(40b)之间，在第1侧板(36)或泵壳(40)形成有突起(50、60)，该突起(50、60)插入到泵转子(31)的贯通孔(31a)。

Fuel injection pump for internal combustion engines

提出了一种用于内燃机的喷油泵，它具有一个集成的输送泵，该泵带有一个外环(5)以及一个内环(10)，该内环经一个齿轮(12)与喷油泵的一个驱动轴(15)相联接。该齿轮的单个齿以其顶面(27)以及其齿根(28)各沿一个绕一个中心点的圆弧分布，该中心点位于通过该齿沿着驱动轴的轴线分布的驱动轴的径向平面内。这样使驱动轴与内环(10)的平面间更大的角度偏差出现时无磨损危害成为可能。

Device for producing polymer pellets, extruded profiles or mouldings and melt pump therefor

본 발명은 폴리머 펠릿, 압출재 또는 몰딩 제품을 제조하기 위한 장치에 관한 것으로서, 이 장치는 폴리머 용융물을 발생시키기 위한 압출기, 폴리머 용융물을 다이(die)를 통해서 밀어주기 위한 압력을 구성하기 위한 용융물 펌프(2) 그리고 펠릿, 압출재 또는 몰딩 제품을 제작하기 위한 다이를 구비하며, 이 경우 상기 용융물 펌프(2)는 압출기로부터 분리된 상태로 형성되었고, 자체 구동 장치(5)를 구비한다. 압출기가 압력 증가 유닛 없이도 충분히 기능을 할 수 있는 상기와 같은 폴리머 펠릿, 압출재 또는 몰딩 제품을 제조하기 위한 장치의 제공은 폴리머 용융물을 압출기로부터 용융물 펌프(2)로 전달하는 과정이 무압력 상태에서 또는 거의 무압력 상태에서 이루어짐으로써 성취된다.

Low noise easy to maintain mixes defeated booster pump

本发明提供一种易维护低噪音混输增压泵，包括泵体和齿轮箱，泵体内部设置有主动轴和从动轴，主动轴和从动轴的驱动端伸出所述泵体端部，从动轴驱动端设置有同步齿轮，主动轴驱动端设置有主动齿轮，主动轴和从动轴通过主动齿轮带动同步齿轮啮合传动；泵体驱动侧端部设置有用于容纳主动齿轮和同步齿轮的齿轮箱；主动轴上设置有主动轴转子，从动轴上设置有从动轴转子，主动轴转子和从动轴转子外齿啮合形成一对转子；泵体内壁设置有耐磨钢套，使主动轴转子和从动轴转子同泵体之间通过耐磨钢套间隔。本发明所述的易维护低噪音混输增压泵，解决了现有混输泵不宜拆卸、更换维护困难、困液量大、效率低的问题。

Pin joint for an eccentric screw pump

본 발명은 편심 스크류 펌프용 핀 조인트에 관한 것이다. 세정액용 보어들을 구비한 핀 조인트의 내부 조인트 헤드의 특수한 구조와 상기 조인트 핀의 길이에 의해 CIP 공법에서도 세정은 가능하다. The present invention relates to a pin joint for an eccentric screw pump. The special structure of the inner joint head of the pin joint having the cleaning liquid bores and the length of the joint pin allow cleaning in the CIP process.

Drum-shaped tooth coupling of dual-drive melt gear pump and phase adjustment method thereof

本申请涉及一种双驱动熔体齿轮泵鼓形齿联轴器及其相位调整方法，其涉及双驱动熔体齿轮泵驱动机械领域，双驱动熔体齿轮泵鼓形齿联轴器包括泵端外齿套、泵端内齿套、联轴节、减速器端内齿套、减速器端外齿套，泵端外齿套能够与齿轮泵的转子轴相连接，且通过设置在外壁的泵端鼓形齿与泵端内齿套传动连接，联轴节的两端设置有多个用于与泵端内齿套和减速器端内齿套相连接的联轴节铰制孔，减速器端外齿套能够与减速器输出轴相连接，且通过设置在外壁的减速器端鼓形齿与减速器端内齿套传动连接，泵端鼓形齿的齿数比减速器端鼓形齿的齿数多1，具有相位调整简单方便的优点。本申请还涉及本申请的双驱动熔体齿轮泵鼓形齿联轴器的相位调整方法。

TROCHOIDAL ROTARY DEVICE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2015 117 593 A (51) МПК F01C 19/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015117593, 21.10.2013 (71) Заявитель(и): ДжиИ ОЙЛ ЭНД ГЭС КОМПРЭШН СИСТЕМС, ЭлЭлСи (US) Приоритет(ы): (30) Конвенционный приоритет: 12.11.2012 US 13/674,922 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 15.06.2015 R U (43) Дата публикации заявки: 10.01.2017 Бюл. № 01 (72) Автор(ы): КАБИР Омар М. (US), ПАТТЕРСОН Марк Эндрю (US), УЭББ Рональд Уэйн (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2014/074294 (15.05.2014) R U (54) ТРОХОИДАЛЬНОЕ РОТОРНОЕ УСТРОЙСТВО (57) Формула изобретения 1. Установка, содержащая трохоидальное роторное устройство, которое содержит корпус, ротор, расположенный внутри указанного корпуса, и вал, присоединенный к ротору, причем вал эксцентрично прикреплен к ротору, и вал и ротор выполнены как единое целое. 2. Установка по п. 1, содержащая по меньшей мере один подшипник, расположенный между углублением под подшипник, выполненным в роторе, и внутренней поверхностью, причем указанный по меньшей мере один подшипник выполнен с обеспечением возможности вращения ротора внутри корпуса. 3. Установка по п. 2, в которой указанный по меньшей мере один подшипник имеет зубцы, расположенные на его наружной поверхности. 4. Установка по п. 2, в которой указанный по меньшей мере один подшипник имеет щетинки, расположенные на его наружной поверхности. 5. Установка по п. 2, в которой указанное углубление ротора под подшипник, или внутренняя поверхность корпуса, или и то, и другое имеет антифрикционную поверхность. 6. Установка по п. 2, в которой по меньшей мере одно из перечисленного: указанный по меньшей мере один подшипник, углубление ротора под подшипник и внутренняя поверхность корпуса, имеет поверхностное покрытие. 7. Установка по п. 2, в которой на наружной поверхности указанного по меньшей мере одного подшипника имеется покрытие, которое является ...

Vane pump

Oil pump of an automated motor vehicle transmission

Die Erfindung betrifft eine Ölpumpe eines automatisierten Kraftfahrzeug-Getriebes, die in einer Off-Axis-Ausführung achsparallel zu einer zentralen Eingangswelle des Getriebes angeordnet ist und deren Primärrotor über eine Pumpenantriebsstufe mit einem Pumpenantriebsrad (1) und einem Pumpenabtriebsrad mit der Triebwelle eines Antriebsmotors in Triebverbindung steht, wobei das Pumpenantriebsrad (1) koaxial zu der Eingangswelle des Getriebes angeordnet, formschlüssig mit der Triebwelle des Antriebsmotors verbunden und über eine Gleitlager (3) auf einem Lagerbund (4) eines gehäusefesten Lagerschildes (5) drehbar gelagert ist. Zur Erhöhung der Betriebssicherheit der Ölpumpe ist das Gleitlager (3) des Pumpenantriebsrades (1) mit einer Druckölversorgung (9) versehen, die eine an eine Druckleitung angeschlossene, zwischen einem Anfahrelement und dem Lagerschild (5) angeordnete Verbindungsleitung (10) sowie eine mit dieser verbundene, innerhalb des Lagerbundes (4) verlaufende und bis in den Lagerspalt (12) des Gleitlagers (3) führende Anschlussleitung (11) aufweist. The invention relates to an oil pump of an automated motor vehicle transmission which is arranged in an off-axis design axially parallel to a central input shaft of the transmission and the primary rotor via a pump drive stage with a pump drive wheel (1) and a Pumpenabtriebsrad with the drive shaft of a drive motor in drive connection stands, wherein the Pumpenantriebsrad (1) arranged coaxially with the input shaft of the transmission, positively connected to the drive shaft of the drive motor and via a plain bearing (3) on a bearing collar (4) of a housing-fixed end plate (5) is rotatably mounted. To increase the reliability of the oil pump, the sliding bearing (3) of the pump drive wheel (1) with a pressure oil supply (9) is provided, which is connected to a pressure line, between a starting element and the bearing plate (5) arranged connecting line (10) and one with this connected within the bearing collar (4 ...

Electric lubricant pump with switchable mechanical drive

Die Erfindung betrifft eine Vorrichtung zur Schmierstoffversorgung, mit einer Schmierstoffpumpe (101), die eine Antriebswelle (103) aufweist, und mit einem Motor (107). Der Motor (107) ist ausgebildet ist, die Antriebswelle (103) anzutreiben. Mindestens eine Kupplung (109, 111, 113) dient dazu, einen Kraftfluss zwischen einer im Kraftfluss eines Getriebes befindlichen Welle und der Antriebswelle (103) herzustellen und/oder zu unterbrechen. The invention relates to a device for supplying lubricant, comprising a lubricant pump (101) having a drive shaft (103) and a motor (107). The motor (107) is configured to drive the drive shaft (103). At least one clutch (109, 111, 113) serves to establish and / or interrupt a power flow between a shaft located in the power flow of a transmission and the drive shaft (103).

Oil pump of an automated motor vehicle transmission

Ölpumpe eines automatisierten Kraftfahrzeug-Getriebes, die in einer Off-Axis-Ausführung achsparallel zu einer zentralen Eingangswelle des Getriebes angeordnet ist, und deren Primärrotor über eine Pumpenantriebsstufe mit einem Pumpenantriebsrad (1) und einem Pumpenabtriebsrad mit der Triebwelle eines Antriebsmotors in Triebverbindung steht, wobei das Pumpenantriebsrad (1) koaxial zu der Eingangswelle des Getriebes angeordnet, formschlüssig mit der Triebwelle des Antriebsmotors verbunden, und über ein Gleitlager (3) auf einem Lagerbund (4) eines gehäusefesten Lagerschildes (5) drehbar gelagert ist, wobei das Gleitlager (3) des Pumpenantriebsrades (1) mit einer Druckölversorgung (9) versehen ist, die eine an eine Druckleitung angeschlossene, zwischen einem Anfahrelement und dem Lagerschild (5) angeordnete Verbindungsleitung (10) sowie eine mit dieser verbundene, innerhalb des Lagerbundes (4) verlaufende und bis in den Lagerspalt (12) des Gleitlagers (3) führende Anschlussleitung (11) aufweist, wobei die Verbindung der Verbindungsleitung (10) mit der Anschlussleitung (11) durch eine Druckverschraubung (20) gebildet ist, die aus einem druckdicht mit dem freien Ende (21) der Verbindungsleitung (10) verbundenen Ringstutzen (22) und einer durch die Öffnung des Ringstutzens (22) in die erste Radialbohrung (14) der Anschlussleitung (11) eingeschraubte Hohlschraube (23) besteht. An oil pump of an automated motor vehicle transmission, which is arranged in an off-axis design axially parallel to a central input shaft of the transmission, and the primary rotor via a pump drive stage with a pump drive gear (1) and a Pumpenabtriebsrad with the drive shaft of a drive motor in drive connection, wherein the pump drive wheel (1) arranged coaxially with the input shaft of the transmission, positively connected to the drive shaft of the drive motor, and via a plain bearing (3) on a bearing collar (4) of a housing-fixed bearing plate (5) is rotatably mounted, wherein the sliding bearing (3 ...

For the pin universal joint of eccentrie helical totorpump

本发明涉及一种用于偏心螺杆泵的销式万向节。由于销式万向节的内部的万向接头具有用于清洗液以及万向节销钉长度的钻孔的这种特殊结构使得也能够采用CIP方法进行清洁。

Oil pump and oil pump integral type balancer device

本发明提供一种油泵以及油泵一体式平衡器装置。该油泵具有：泵壳体，其由壳体主体(31)与盖部件(32)构成；泵轴(33)，其具有传递旋转力时产生推力的从动侧斜齿轮(43)，并利用从与从动侧斜齿轮啮合的驱动侧斜齿轮(13)施加的旋转力，使转子旋转；第一、第二推力接受部(46、47)，其形成于壳体主体与盖部件的各轴承孔(31a、32a)的孔缘附近；第一、第二推力限制部(48、49)，其设置在从动侧斜齿轮和泵轴的另一端部，从轴向与各推力接受部抵接，来限制泵轴的推力移动。由此，能够确保泵轴的稳定的支承。

Pump

一种液压泵，包括具有驱动轴(16)的泵机构(12)。驱动轴(16)通过诸如一种花键方式连接的挠性联结与输入轴(50)相接。壳体(30)绕驱动轴(16)完全延伸，而高压密封(74)设置在壳体(30)与输入轴(50)之间。推力轴承(72)将输入轴50上的轴向流体压力传给壳体(30)。该装置使该驱动轴(16)两端上承受平衡的流体压力，从而减小了摩擦和损耗。

Flow control system with gas interference prevention isolation device in downhole fluid drainage operation

一种流动控制系统包括泵，其安置在井孔中用以从井孔排出液体。隔离装置安置成与井孔相通以在排出液体的过程中基本上防止在泵处出现气流。

Pendulum pump

An inner rotor (a drive side) includes a plurality of slots. An outer rotor (a driven side) includes a plurality of pendulum retaining grooves. Each of pendulums includes a head section swingably fitted into a corresponding one of the pendulum retaining grooves and a body section slidably fitted into the corresponding one of the slots. A torque transmission surface of the body section includes a straight line section and a curved section. At a reference angle position at which a perpendicular line orthogonal to an eccentric direction becomes parallel to the corresponding one of the slots, the straight line section makes a surface contact on a torque-transmission-side side surface to start a torque transmission. Until a torque transmission end point, the curved section contacts on opening edge of the corresponding one of the slots. A curved section profile is set to make mutually equal angular velocities between the two rotors.

Borehole submerged pump

FIELD: engines and pumps. SUBSTANCE: submerged pump represents a screw or one-impeller pump coupled with the 250 to 300 rpm motor. For the aforesaid motor drive to be coupled with the pump, a bearing assembly is used to sustain radial and axial loads, arranged so that the pump and motor drive abuts on the said bearing assembly on opposite sides. The bearing assembly and pump diameters diameter do not exceed 100 mm. EFFECT: pump operation in minor-diameter holes. 5 cl, 1 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 338 928 (13) C2 (51) ÌÏÊ F04C 2/107 (2006.01) F04B 47/00 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2003135866/06, 11.12.2003 (72) Àâòîð(û): ÀÉÒËÅРɸðã (DE), ÄÈÒÒÐÈÕ Éîõåí (DE) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 11.12.2003 (73) Ïàòåíòîîáëàäàòåëü(è): ÍÅÖØ ÎÉËÔÈËÄ ÏÐÎÄÀÊÒÑ ÃÌÁÕ (DE) R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 13.12.2002 DE 10258666.7 (43) Äàòà ïóáëèêàöèè çà âêè: 20.05.2005 (45) Îïóáëèêîâàíî: 20.11.2008 Áþë. ¹ 32 2 3 3 8 9 2 8 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: DE 19848792 C1, 04.05.2000. RU 2103557 C1, 27.01.1998. RU 2217579 C1, 27.11.2003. GB 2187310 A, 03.09.1987. US 6547514 B2, 15.04.2003. (57) Ðåôåðàò: Èçîáðåòåíèå îòíîñèòñ ê ïîãðóæíûì íàñîñàì äë èñïîëüçîâàíè â áóðîâîé ñêâàæèíå. Ïîãðóæíîé íàñîñ âûïîëíåí â âèäå ÷åðâ ÷íîãî èëè îäíîâèíòîâîãî íàñîñà, ñîåäèíåííîãî ñ ïðèâîäîì.  êà÷åñòâå ïðèâîäà ïðèìåíåí ýëåêòðîäâèãàòåëü ñ ÷àñòîòîé âðàùåíè îò 250 äî 300 îá/ìèí. Äë ñîåäèíåíè ýëåêòðîäâèãàòåë ñ íàñîñîì ïðèìåíåí ïîäøèïíèêîâûé óçåë, âîñïðèíèìàþùèé îñåâûå è ðàäèàëüíûå óñèëè è óñòàíîâëåííûé òàêèì îáðàçîì, ÷òî ñ îäíîé ñòîðîíû ê íåìó ïðèìûêàåò íàñîñ, à ñ äðóãîé ñòîðîíû - ýëåêòðîäâèãàòåëü. Äèàìåòð ïîäøèïíèêîâîãî óçëà è íàñîñà íå ïðåâûøàåò 100 ìì. Îáåñïå÷èâàåòñ âîçìîæíîñòü ýêñïëóàòàöèè íàñîñà â áóðîâûõ ñêâàæèíàõ, äèàìåòð êîòîðûõ ñîñòàâë åò 115 ìì è ìåíåå. 4 ç.ï. ô-ëû, 1 èë. R U 2 3 3 8 9 2 8 (54) ÏÎÃÐÓÆÍÎÉ ÍÀÑÎÑ ÄËß ÈÑÏÎËÜÇÎÂÀÍÈß Â ...

Fluid transfer machine with drive shaft lubrication and cooling

VANE PUMP

Gear pump

IMPROVEMENTS ON GEAR PUMPS

L'INVENTION CONCERNE DES PERFECTIONNEMENTS APPORTES AUX POMPES MOINEAU COMPRENANT UN STATOR 2 PRESENTANT UNE CAVITE AXIALE 3, UN ROTOR HELICOIDAL 4 APTE A TOURNER DANS LADITE CAVITE DU STATOR EN COOPERANT AVEC ELLE ET DES MOYENS D'ACCOUPLEMENT POUR ACCOUPLER LE ROTOR A UN AUTRE ORGANE TOURNANT, MOTEUR OU ENTRAINE. LE ROTOR HELICOIDAL FAIT SAILLIE AXIALEMENT HORS DU STATOR ET LES MOYENS D'ACCOUPLEMENT COMPRENNENT UN MANCHON D'ACCOUPLEMENT 6 RIGIDE ET ALLONGE, EVIDE D'UN LOGEMENT AXIAL 7 DONT LA FORME EST COMPLEMENTAIRE DE CELLE DE L'HELICE DU ROTOR, LEDIT MANCHON ETANT ENGAGE SUR ET ENSERRANT L'EXTREMITE 5 DU ROTOR SAILLANT HORS DU STATOR. THE INVENTION CONCERNS IMPROVEMENTS MADE TO SPARROW PUMPS INCLUDING A STATOR 2 PRESENTING AN AXIAL CAVITY 3, A HELICOIDAL ROTOR 4 CAPABLE OF ROTATING IN THE SAID CAVITY OF THE STATOR COOPERATING WITH IT AND COUPLING MEANS TO COUPLE THE ORGANE TO THE ORGANE TURNING, MOTOR OR DRIVEN. THE HELICOIDAL ROTOR PROJECTS AXIALLY OUT OF THE STATOR AND THE COUPLING MEANS INCLUDE A RIGID AND EXTENDED COUPLING SLEEVE 6, HOLLOW FROM AN AXIAL HOUSING 7 THE SHAPE OF WHICH IS COMPLEMENTARY TO THAT OF THE ROTOR PROPELLER, HIS SLEEVE BEING ENGAGED ON AND ENCLOSING END 5 OF THE PROJECTING ROTOR OUTSIDE THE STATOR.

GEAR PUMP

Pompe à engrenage dans laquelle une roue dentée est montée sur un arbre de commande. L'extrémité de l'arbre de commande pénétrant dans la roue dentée présente une fente axiale dont un tronçon extrême élargi loge un axe transversal. Les extrémités de cet axe dépassant diamétralement de l'arbre sont destinées à se loger dans des rainures réalisées à l'intérieur de la roue dentée montée sur l'arbre. Domaine d'application pompes à engrenage d'alimentation en combustible.

ROTARY VOLUMETRIC PUMP WITH REDUCED RADIAL SIZE

- Pompe volumétrique rotative à encombrement radial réduit.- Selon l'invention, la pompe volumétrique rotative comporte un engrenage extérieur (13) à denture interne (16), en forme de cage d'écureuil ; et un engrenage intérieur (9), logé de façon excentrée à l'intérieur dudit engrenage extérieur (13) et pourvu d'une denture externe (9D) engrenant avec ladite denture interne (16) et comportant un nombre de dents inférieur d'une unité au nombre de dents de cette dernière. Les moyens de rotation dudit engrenage extérieur (13) comportent au moins un palier (11, 12) agencé centralement dans un flasque d'extrémité (14, 15) dudit engrenage extérieur (13) ; et ledit engrenage extérieur (13) est au moins en partie démontable pour pouvoir y introduire ledit engrenage intérieur (9). - Rotating volumetric pump reduced radial size.- According to the invention, the rotary positive displacement pump comprises an outer gear (13) with internal teeth (16) in the form of a squirrel cage; and an inner gear (9), eccentrically housed within said outer gear (13) and provided with an external toothing (9D) meshing with said internal toothing (16) and having a lower number of teeth than a unit to the number of teeth of the latter. The rotation means of said external gear (13) comprise at least one bearing (11, 12) arranged centrally in an end flange (14, 15) of said external gear (13); and said outer gear (13) is at least partly removable for insertion of said inner gear (9).

GEAR PUMP

Une pompe à engrenages (1), pour utilisation avec un outil à main(200) à arbre rotatif (201),comprenant un boîtier (5) muni d'une chambre (6)avec une entrée (65) et une sortie (66) pour le fluide; au moins une roue dentée (21), montée à rotation dans la chambre (6) et un arbre d'entraînement (24, 25) dont une extrémité est susceptible d'être mise en prise avec l'arbre rotatif (201) de l'outil à main (200), de manière que la rotation de l'arbre d'entraînement (24, 25) par l'outil à main (200) provoque le déplacement du fluide entre lesdites entrée (65) et sortie (66). A gear pump (1), for use with a hand tool (200) having a rotating shaft (201), comprising a housing (5) provided with a chamber (6) with an inlet (65) and an outlet (66 ) for the fluid; at least one toothed wheel (21), rotatably mounted in the chamber (6) and a drive shaft (24, 25) one end of which is capable of being brought into engagement with the rotary shaft (201) of the hand tool (200), whereby rotation of the drive shaft (24, 25) by the hand tool (200) causes fluid to move between said inlet (65) and outlet (66) .

ELASTIC COUPLINGS IMPROVEMENTS

PUMPING DEVICE

L'invention concerne un dispositif de pompage comportant : - une pompe à cavités progressives comprenant un rotor hélicoïdal (10) ; - un mécanisme de transmission fixé au rotor hélicoïdal, le mécanisme de transmission et le rotor comprenant un organe de fixation parmi un organe mâle (32) et un organe femelle (34). L'organe mâle comportant une saillie axiale ayant une paroi extérieure de verrouillage (62) inclinée d'un angle de verrouillage (θ ) compris entre 5° et 60°par rapport à un plan horizontal (x,y) ; et l'organe femelle comportant un carter (74) pourvu d'un évidement axial (80) ayant une paroi intérieure de verrouillage (90) inclinée dudit angle de verrouillage (0) par rapport au plan horizontal (x,y), la paroi extérieure de verrouillage (62) étant en butée contre la paroi intérieure de verrouillage (90), lorsque l'organe mâle (32) est accouplé à l'organe femelle (34).

ROTARY VOLUME PUMP WITH SMALL RADIAL DIMENSIONS

1. Роторный объемный насос, содержащий ! кожух (2), в котором есть насосная камера (4) и радиальный впуск (20) для текучей среды и выпуск (21) для указанной насосной камеры (4); ! внешнее зубчатое колесо (13) с множеством (16) внутренних зубьев, расположенным в указанной насосной камере (4) и образующим форму беличьей клетки с двумя торцевыми пластинами (14, 15), которые соединены продольными стержнями, которые образуют указанное множество внутренних зубьев, указанное внешнее зубчатое колесо (13) является, по меньшей мере, частично разбираемым; ! средство вращения (11, 12), позволяющее указанному внешнему зубчатому колесу (13) вращаться внутри указанной насосной камеры (4) вокруг первой оси (А13), и содержащее, по меньшей мере, один подшипник (11, 12), расположенный центрально в торцевой пластине (14, 15) указанного внешнего зубчатого колеса (13); ! внутреннее зубчатое колесо (9), размещенное внутри указанного внешнего зубчатого колеса (13) и выполненное с множеством (9D) внешних зубьев, входящим в зацепление с указанным множеством (16) внутренних зубьев внешнего зубчатого колеса (13); причем указанное внутреннее зубчатое колесо (9), вращающееся вокруг второй оси (А8), параллельно и на расстоянии от указанной первой оси (А13), и указанное множество (9D) внешних зубьев содержит число зубьев меньше на один, чем число зубьев множества внутренних зубьев указанного внешнего зубчатого колеса (13); и ! двигатель (3) для приведения во вращение указанного внутреннего зубчатого колеса (9) вокруг указанной второй оси (А8), ! при этом указанная насосная камера (4) содержит удаляемую стенку (10), которая выполнена с возможностью прикрепления к указанному кожуху (2), чтобы закрыть � РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2008 144 573 (13) A (51) МПК F04C 2/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2008144573/06, 07.05.2007 (71) Заявитель(и): КАРМА (FR) (30) Конвенционный приоритет: 12.05. ...

Patent FR2422839B1

Fuel injector feed pump for motor vehicle internal combustion engine

A radiological and ultrasonic film esp. clinical images are transported and stored in an envelope bearing a legend e.g. patient details and diagnosis. Part of the front envelope face bears pre-printed fields in which such data is entered.The envelope also bears a flap (50) which when folded down retains the envelope inner contents, and covers the rear part of the envelope extending behind the pre-printed fields (52)