Hermetic compressor and manufacturing method thereof

A hermetic compressor is provided, comprising: a cylindrical shell; a stator fixed to inner surface of the shell; a rotor rotatably installed with respect to the stator; a compression unit combined with the rotor to be rotated together with the rotor; a stationary shaft including an eccentric portion around which the compression unit is supported stationary with respect to a longitudinal direction thereof; an accumulator fixed to inside of the shell in such a manner sealing the upper end of the shell and fixedly supporting one end of the stationary shaft above the stator; a lower frame fixed to inside of the shell and fixedly supporting the other end of the stationary shaft; an upper cap to seal the upper end of the accumulator; and a lower cap to seal the lower end of the shell.

Vane pump

A back pressure groove which is formed in a plate coming into contact with a side surface of a rotor and is communicated with a high pressure chamber is formed in such a manner as to copy an annular locus drawn by a base end of a vane which slides within a vane groove while coming into slidable contact with a cam surface of a cam ring, at a time when the rotor rotates one time.

Urea solution pump structure

A urea solution pump structure may include a housing portion connected to an external connector and covering an upper portion of the pump structure, a motor portion disposed at a lower portion of the housing portion and including a rotor and a stator, a case portion receiving the motor portion therein, and a pump portion disposed at a lower portion of the case portion and fluid-isolated from the motor portion, wherein the pump portion may be formed with an inlet and an outlet for a fluid, wherein a hollow cover may be provided at a lower portion of the case portion for separating the pump portion and the motor portion, and an oil seal unit may be mounted at a lower portion of the hollow cover for sealing a rotating shaft of the rotor which penetrates through the hollow cover.

ROTARY ENGINE EXHAUST APPARATUS AND METHOD OF OPERATION THEREFOR

The invention comprises a rotary engine method and apparatus configured with an exhaust system. The exhaust system includes an exhaust cut or exhaust channel into one or more of a housing or an endplate of the rotary engine, which interrupts the seal surface of the expansion chamber housing. The exhaust cut directs spent fuel from the rotary engine fuel expansion/compression chamber out of the rotary engine either directly or via an optional exhaust port and/or exhaust booster. The exhaust system vents fuel to atmosphere or into a condenser for recirculating of fuel in a closed-loop circulating rotary engine system. Exhausting the engine reduces back pressure on the rotary engine thereby enhancing rotary engine efficiency. 1. An apparatus , comprising:a rotor configured to rotate in a stator, said stator comprising a first substantially elliptical inner wall, said rotor offset along both an x-axis and a y-axis relative to a center of said inner wall of said stator, wherein said x-axis and said y-axis form an x/y plane perpendicular to a rotatable shaft extending through said rotor;a first endplate sealing a first end of said stator;a second endplate sealing a second end of said stator;a set of spaced vanes configured to span a distance between said rotor and said stator, at least one of said vanes comprising a vane tip proximate said stator, wherein a twelve o'clock position of a rotation of said rotor within said stator comprises a point of rotation of said rotor at first extension of said vanes; andan exhaust aperture configured to vent an expansion chamber of said apparatus during an exhaust phase of a cycle of said rotor.2. The apparatus of claim 1 , said exhaust aperture configured to vent fuel from the expansion chamber through at least one of:said first endplate; andsaid second endplate.3. The apparatus of claim 1 , said exhaust aperture configured to vent fuel from the expansion chamber through at least two of:said stator;said first endplate; andsaid second ...

STATOR OF A GEROTOR DEVICE AND A METHOD FOR MANUFACTURING ROLLER POCKETS IN A STATOR OF A GEROTOR DEVICE

A method for manufacturing roller pockets in a stator of a gerotor device generally includes providing a stator having a cavity including a generally cylindrical section defining a central axis and a plurality of roller pockets angularly spaced around a periphery of the cylindrical section. Each roller pocket is configured to receive a respective roller, which acts as an internal tooth of the gerotor device. Each roller pocket defines a generally cylindrical roller pocket bearing surface. The method further includes grinding each roller pocket bearing surface of each roller pocket with a grinding wheel rotating about a rotational axis perpendicular to the central axis. A stator for a gerotor device is also described. 1. A stator for gerotor device comprising:a plurality of rollers;a stator body having a forward face, a rear face, a cavity including a generally cylindrical section defining a central axis and a plurality of roller pockets angularly spaced around a periphery of the cylindrical section,wherein each roller pocket receives a respective roller, which acts as an internal tooth of the stator,wherein each roller pocket includes a generally cylindrical roller pocket bearing surface, against which the respective roller received in the roller pocket bears,wherein each bearing surface extends along an arc that partially surrounds the respective roller received in the roller pocket,wherein the arc is greater than 185 degrees,wherein each bearing surface includes a first section following a first curve and a second section following a second curve, wherein each curve is substantially circular, wherein the first curve is a substantial mirror image of the second curve with respect to a center line through the respective roller pocket and the respective bearing surface deviates from each curve at or adjacent an area of the respective bearing surface intersected by the center line,wherein the first curve follows a first radius and the second curve follows a second ...

Scroll expander

In a double rotation type scroll expander having double expansion chambers, a single integrated drive shaft is disposed to penetrate the interior of a housing, the double expansion chambers are formed by a drive scroll body and a driven scroll body, and a working medium introduction hole is provided in an axial direction of the drive shaft such that the working medium is supplied evenly to the double expansion chambers through the working medium introduction hole via a radial direction hole. The drive shaft and the drive scroll body formed integrally with the drive shaft rotate while the driven scroll body rotates synchronously with the drive scroll shaft via an interlocking mechanism.

Double internal gear wheel pump

A double internal gear wheel pump includes two internal gear wheel pumps configured as hydraulic pumps of a hydraulic, slip-controlled vehicle braking system. The double internal gear wheel pump further includes a partition wall that is arranged between both internal gear wheel pumps. The partition wall is configured as a single-piece component of a pump housing, preferably formed by a hydraulic block of the vehicle braking system.

ROTARY COMPRESSOR

A rotary compressor () includes a compression mechanism (), a motor (), a suction path (), a back-pressure chamber (), a return path (), an inverter (), and a controller (). A check valve () of a reed valve type for opening and closing a return port () of the compression mechanism () is disposed in the back-pressure chamber (). The return path () functions to return a working fluid to the suction path () from the back-pressure chamber (). A volume-varying valve () is provided in the return path (). The volume-varying valve () allows the working fluid to flow through the return path () when the suction volume of the compression mechanism () should be set relatively small, and precludes the working fluid from flowing through the return path () to increase the pressure in the back-pressure chamber () when the suction volume of the compression mechanism () should be set relatively large. 1. A rotary compressor comprising: a cylinder,', 'a piston disposed inside the cylinder so as to form a working chamber between an outer circumferential surface of the piston and an inner circumferential surface of the cylinder,', 'a vane that divides the working chamber into a suction chamber and a compression-discharge chamber,', 'a suction port through which a working fluid to be compressed flows into the suction chamber,', 'a discharge port through which the working fluid having been compressed flows out of the compression-discharge chamber, and', 'a return port through which the working fluid is allowed to escape from the compression-discharge chamber;, 'a compression mechanism comprising'}a shaft having an eccentric portion fitted to the piston;a motor that rotates the shaft;a suction path through which the working fluid is directed to the suction port;a back-pressure chamber that communicates with the return port;a check valve of a reed valve type that is provided in the back-pressure chamber and that elastically deforms to open and close the return port;a return path through ...

Motor-driven compressor

A motor-driven compressor includes a compression unit, an electric motor, a housing, a cover, wherein the cover includes a main body and a connector coupler, and the cover and the housing define an accommodating chamber, a motor driving circuit that is accommodated in the accommodating chamber and includes a circuit board, and a metal terminal held in the connector coupler, wherein the metal terminal includes first and second end portions. The cover has a shield including a first shield portion, which blocks electromagnetic noise and forms at least part of the connector coupler, and a second shield portion, which blocks electromagnetic noise and forms at least part of the main body. The first and second shield portions are coupled to each other. The second shield portion includes an insertion hole into which one of the first and second end portions of the metal terminal is insertable.

Process for manufacturing casing, and vacuum pump

Damage of a rotor and a side plate are suppressed with a simple construction to prevent reduction in durability of a vacuum pump. A casing manufacturing method comprises a step (step S 2 ) of disposing a cylinder liner forming a cylinder chamber in a mold, and casting a casing main body integrally with the cylinder liner by using molten metal, and a step (step S 3 ) of processing an intercommunication hole and an exhaust hole so that the intercommunication hole and the exhaust hole penetrate through both the cylinder liner and the casing main body together and intercommunicate with the cylinder chamber.

ROTARY ENGINE SEALS

The invention relates to a rotor assembly having a sealing system for sealing at apexes or faces of the rotor. In a disclosed arrangement the apex seal or the face seal comprises a compliant member that is configured such that the shape or orientation of the compliant member can change in use in response to a change in the speed of rotation of the rotor, a change in the pressurisation across the compliant member, or a change in clearance between the sealing surface and a mounting element to which the compliant member is mounted, to deflect towards or away from the sealing surface. 1. A rotor assembly for a rotary engine , comprising:a housing;a rotor configured to rotate eccentrically within the housing; anda sealing system, wherein:the rotor comprises a plurality of apexes that are configured to engage with a radially inner sealing surface of the housing in order to define a plurality of separate working volumes, each working volume being located between two of the apexes, the radially inner sealing surface of the housing and a radially outer surface of the rotor;the sealing system comprises an apex seal located at one of the apexes, the apex seal being configured to provide an engagement between the apex and the radially inner sealing surface of the housing that inhibits movement of gas from one working volume to another working volume past the apex throughout the range of rotation of the rotor;the sealing system comprises a face seal located on a face of the rotor that is perpendicular to the axial direction, the face seal being configured to provide an engagement between the face of the rotor and a sealing surface of the housing that is perpendicular to the axial direction that inhibits movement of gas from one working volume to another past a portion of the face;the apex seal or the face seal comprises a compliant member, which is the part of the seal that most closely approaches the sealing surface;the compliant member is configured such that the shape or ...

ROTARY VANE MOTOR

The present invention relates to a rotary motor, comprising a plurality of vanes, wherein each of the vanes is split into two subvanes, one or more elastic members, wherein the elastic member is configured to push each of the subvanes foil ling a vane toward an end plate to form a seal between the subvane and the end plate; an inner rotary member housing the plurality of vanes projecting from a central rotation axis of the inner rotor; a lobe member encompassing the inner rotary member and the plurality of vanes; a plurality of chambers wherein each of the chambers is encompassed by an inner surface of the lobe member and an outer surface of the inner rotary member; and one or more end plates to enclose the plurality of vanes, the inner rotary member, the lobe member and the plurality of chambers. 1. A rotary motor , comprising:a plurality of vanes, wherein at least one of the vanes comprises two subvanes;an inner rotary member to house the plurality of vanes;a lobe member to surround, at least in part, the inner rotary member and the plurality of vanes;a plurality of chambers wherein at least one of the chambers is surrounded, at least in part, by an inner surface of the lobe member and an outer surface of the inner rotary member; andat least one end plate to cover, at least in part, the plurality of vanes, the inner rotary member, the lobe member and the plurality of chambers.2. The rotary motor according to claim 1 , further comprising: at least one elastic member.3. The rotary motor according to claim 2 , wherein the elastic member is placed within the vane having the subvanes.4. The rotary motor according to claim 3 , wherein each subvane of the vane comprises an offset slot.5. The rotary motor according to claim 4 , wherein a surface of the offset slot in each of the subvanes is in contact with an end of the elastic member.6. The rotary motor according to claim 5 , wherein the elastic member is configured to push at least one of the subvanes toward the end ...

Stator for Progressive Cavity Pump/Motor

A stator for a progressive cavity pump or motor includes a stator housing having a longitudinal axis. In addition, the stator includes a stator insert of a material moulded within the housing. The stator housing includes an outer tube having an inner surface. The stator housing also includes a plurality of framework elements disposed on the inner surface of the outer tube. Further, the stator housing includes at least one recess in the inner surface of the outer tube. The conjunction of the framework elements and the at least one recess define a plurality of chambers receiving insert material therein whereby the insert material is mechanically fixed axially, radially and torsionally within the outer tube.

OFFSET ELECTRICAL TERMINAL BOX WITH ANGLED STUDS

A compressor assembly includes a housing that is annular and surrounds a longitudinal central axis. The compressor also has a compressor housed in the housing, a terminal box, and a first stud coupling the terminal box with the housing. The first stud defines a first central axis. A second stud also couples the terminal box with the housing. The second stud defines a second central axis. Both the first and second central axes extend through the housing on the same side of the longitudinal central axis of the housing. 1. A compressor assembly comprising:a housing that is annular and surrounds a longitudinal central axis;a compressor housed in the housing;a terminal box; anda first stud coupling the terminal box with the housing, the first stud defining a first central axis; anda second stud coupling the terminal box with the housing, the second stud defining a second central axis;wherein both the first and second central axes extend through the housing on the same side of the longitudinal central axis of the housing.2. The compressor assembly of claim 1 , wherein the first central axis is substantially parallel to the second central axis.3. The compressor assembly of claim 1 , wherein second central axis of the second stud does not intersect the longitudinal central axis of the housing.4. The compressor assembly of claim 1 , wherein the first and second studs are vertically aligned.5. The compressor assembly of claim 1 , wherein the first stud and the second stud are offset horizontally and vertically relative to one another.6. The compressor assembly of claim 1 , further comprising an external block and a protection module positioned within the terminal box;wherein the first stud is arranged in a first plane that extends between the external block and the protection module; andwherein the second stud is located in a second plane parallel and non-coextensive with the first plane, the first and second planes being vertical and including the first central axis and the ...

Rotary Machine

A rotary machine, for directing a quantity of fluid from an inlet to an outlet, comprises one or more elliptical or near-elliptical rotors having planetary rotation within a housing. The interior cavity of the housing comprises an inverse apex region that is in contact with the rotor during its rotation. In various embodiments the rotor and housing can be symmetric or asymmetric in cross-section. Features are described that can improve the operation of the machine for various end-use applications. Such features include cut-outs that are fluidly connected to the inlet or outlet ports of the machine, mechanisms for reducing variation in output flow rate from the rotary machine, linings for the interior cavity of the housing, pressure relief mechanisms, dynamic apex seals and other sealing mechanisms.

COMPRESSOR UNIT FOR REFRIGERATING MACHINE FOR DOMESTIC OR COMMERCIAL USE AND REFRIGERATING MACHINE FOR DOMESTIC OR COMMERCIAL USE WHICH COMPRISES IT

A compressor unit () of a refrigerating machine () for domestic or commercial use has a rotary compressor () which has a BLDC or BLAC motor (), connected to a compression element () for actuating it, and a control device () connected to the motor (), for driving it at a variable speed. The compressor () further has a a housing () which encloses the motor () and the compression element () and which has a side wall () inside of which the stator () of the motor () is fixed. The compressor unit () also comprises an operating shell () covering the housing () and in thermal communication with the side wall (). The operating shell () dissipates heat transmitted to it by the housing () and contrasts or absorbs or dissipate sound waves having a frequency of between 4 kHz and 16 kHz. 2102222191721181720. The compressor unit () according to claim 1 , which comprises a base () claim 1 , for resting on a supporting surface claim 1 , said base () being fixed to a lower wall () of said housing (); said operating shell () being configured in such a way as to cover an upper wall () of said housing () and said side wall ().310211817. The compressor unit () according to claim 2 , wherein said operating shell () is in thermal contact with the upper wall () of said housing ().4102324201817. The compressor unit () according to claim 2 , comprising an operating layer () made of sound absorbent foam-type material having a first face () in thermal contact with said side wall () and/or with said upper wall () of said housing ().5102324201817. The compressor unit () according to claim 3 , comprising an operating layer () made of sound absorbent foam-type material having a first face () in thermal contact with said side wall () and/or with said upper wall () of said housing ().610. The compressor unit () according to claim 4 , wherein said sound absorbent foam-type material comprises a melamine resin foam.710. The compressor unit () according to claim 5 , wherein said sound absorbent foam-type ...

SCROLL FLUID MACHINE

The scroll-type compressor comprises a fixed scroll and an orbiting scroll which are engaged with each other, a front housing for accommodating the fixed scroll and the orbiting scroll, and a rear housing joined to the open end of the front housing . The fixed scroll has the base plate fitted into the front housing , and the flange held at a joint surface between the front housing and the rear housing . Additionally, at least one of the flange of the fixed scroll and the front housing forms therein a recessed portion A or E which permits the fixed scroll to be displaced in an axial direction toward the orbiting scroll due to a pressure difference acting on opposite surfaces of the base plate of the fixed scroll 1. A scroll fluid machine comprising:a fixed scroll and an orbiting scroll engaged with each other;a first housing for accommodating the fixed and orbiting scrolls, anda second housing joined to an open end of the first housing;wherein the fixed scroll has a base plate fitted into the first housing, and a flange held at a joint surface between the first and second housings, andat least one of the flange of the fixed scroll and the first housing has a recessed portion formed therein which permits the fixed scroll to be displaced in an axial direction toward the orbiting scroll due to a pressure difference acting on opposite surfaces of the base plate of the fixed scroll.2. The scroll fluid machine according to claim 1 , wherein the recessed portion formed in the flange of the fixed scroll includes an annular recessed groove facing an inner peripheral end portion of the first housing.3. The scroll fluid machine according to claim 1 , wherein the recessed portion formed in the first housing includes an annular recessed groove or a chamfer positioned in the inner peripheral end portion of the first housing.4. The scroll fluid machine according to claim 1 , wherein a boss claim 1 , into which a shaft portion of a bolt for fastening the first and second housings is ...

Metal Stators

A stator for a helical gear device is formed from multiple rigid disks and support rings bonded to the disks. Each disk forms part of a profile consisting of radially equally spaced or opened lobes which interact with the convex portions of rotor lobes. The disks are arranged into a desired helical configuration and bonded to one another to form a disk stack defining a helically convoluted elongated chamber therein. The support rings are fixed concentrically against respective end disks of the disk stack. The rings are sized with an inside diameter substantially equal to the major diameter of the central aperture defined by the radially extending lobes of the rigid disks. As a rotor rotates and nutates inside the helically convoluted elongated chamber of the stator, it is supported at both ends of the disk stack by the support rings touching the tips of the rotor lobes. Thus the full force of the rotor's operational inertia is not borne by the disks alone, thereby increasing their life. 1. A stator for a helical gear device , comprising:a plurality of rigid disks stacked together and defining a helically convoluted elongated chamber, each of said rigid disks having an interior surface with radially extending lobes defining a central aperture, said rigid disks being concentrically aligned face-to-face in a stacked helical relationship with one another with each disk rotated with respect to an adjacent one of said rigid disks progressively along a length of said disk stack in one direction of rotation to define a helically convoluted elongated chamber;a bonding member fixedly attached to said rigid disks to bond said rigid disks together as said disk stack; anda plurality of rigid support rings fixedly attached to said disk stack, said rings including a first ring and a second ring, said first and second rings fitted concentrically at opposite ends of said disk stack against the end rigid disks of said disk stack, said rings being sized with an inside diameter ...

Pump Assembly Having an Axial-Flux Electric Drive

The invention relates to a pump assembly, at least comprising a first housing, in which at least one first drive means for conveying a fluid is rotatably mounted, wherein a first drive shaft of the first drive means extends at least through a first side wall of the first housing in an axial direction; wherein, outside of the first housing, at least one first rotor of a first axial-flux electric drive is arranged on the first drive shaft, wherein the first axial-flux electric drive has only one stator.

Rotary Device Having a Circular Guide Ring

A rotary device for use with a fluid includes a housing, a rotor, a ring, and at least one vane. The housing includes a tubular surface defining, in part, a tubular volume. The housing is segregated into at least a pumping zone positioned between first and second working zones. The first working zone is configured to receive a fluid and the second working zone is configured to output the fluid. The rotor is mounted for rotation about a rotation axis. The rotor includes a body mounted within the tubular volume. The body includes a plurality of slots. The ring is at least indirectly coupled to the housing by way of a bearing. The at least one vane is associated with one slot of the plurality of slots. The at least one vane is connected at least indirectly to the ring and configured to rotate within the tubular volume. 1. A rotary device for use with a fluid , the rotary device comprising:a housing having a tubular surface defining, in part, a tubular volume, the housing segregated into at least a pumping zone positioned between first and second working zones, the first working zone configured to receive a fluid and the second working zone configured to output the fluid;a rotor mounted for rotation about a rotation axis, the rotor having a body mounted within the tubular volume and having a plurality of slots;a ring at least indirectly coupled to the housing by way of a bearing; andat least one vane associated with one slot of said plurality of slots, said at least one vane connected at least indirectly to the ring and configured to rotate within the tubular volume.2. The rotary device of claim 1 , further comprising a bearing coupled to the housing and positioned to support the ring claim 1 , the bearing configured to rotate about a bearing axis and maintain a position of the ring with respect to the housing as the ring rotates.3. The rotary device of claim 2 , wherein the ring includes an outer surface in contact with an outer surface of the bearing.4. The rotary ...

VANE PUMP

A vane pump includes: a casing forming a pump chamber therein; a rotor arranged inside the casing to rotate eccentrically with respect to the casing; and a plurality of vanes configured to rotate with the rotor and slide on an inner side surface of the casing. At least one of Formula (1): I≤(b/a)×k and Formula (2): I≤(c/a)×j is satisfied, where “a” represents a height of the pump chamber, “b” represents a height of the rotor, “c” represents a height of the vane in a rotation axis direction of the rotor, and where “I” represents a linear expansion coefficient of the casing in the rotation axis direction, “k” represents a linear expansion coefficient of the rotor in the rotation axis direction, and “j” represents a linear expansion coefficient of the vane in the rotation axis direction. 1. A vane pump comprising:a casing forming a pump chamber therein;a rotor arranged inside the casing to rotate eccentrically with respect to the casing; anda plurality of vanes configured to rotate with the rotor and slide on an inner side surface of the casing, whereinat least one of Formulas (1) and (2) is satisfied,Formula (1): I≤(b/a)×k, andFormula (2): I≤(c/a)×j,wherein “a” represents a height of the pump chamber in a rotation axis direction of the rotor,wherein “b” represents a height of the rotor in the rotation axis direction,wherein “c” represents a height of the vane in the rotation axis direction,wherein “I” represents a linear expansion coefficient of the casing in the rotation axis direction,wherein “k” represents a linear expansion coefficient of the rotor in the rotation axis direction, andwherein “j” represents a linear expansion coefficient of the vane in the rotation axis direction.2. The vane pump according to claim 1 , further satisfying at least one of Formulas (3) and (4) claim 1 ,Formula (3): I≥0.9×(b/a)×k, andFormula (4): I≥0.9×(c/a)×j.3. A vane pump comprising:a casing forming a pump chamber therein;a rotor arranged inside the casing to rotate eccentrically ...

Displacement pump

To provide a displacement pump that can be assembled while properly maintaining side clearances. The displacement pump (100, 101, 102, 103, 104, 105) of the present invention for sucking and discharging a fluid such as gasoline vapor by changing pressure in a space constituted by an outer peripheral surface of a rotor (1) and an inner wall surface of a casing (2), comprising a side clearance adjusting member (4), rotating with respect to the pump main body (6), for moving a shaft (3) integrally formed with the rotor (1) in an axial direction of the shaft (3).

MULTI-INJECTION PORT ROTARY ENGINE APPARATUS AND METHOD OF USE THEREOF

The invention comprises a rotary engine apparatus and method of use thereof, where the rotary engine comprises multiple injection ports. Optional injection ports include a first port in an expansion chamber, a second port in the expansion chamber after a first rotation of the rotor, a third port into the expansion chamber after a second rotation of the rotor, a fourth port from a fuel path through a shaft of the rotary engine, and/or a fifth port into a rotor-vane chamber between the rotor and a vane. Optionally, one or more of the injection ports are controlled through mechanical valving and/or through electronic and/or computer control. 1. An apparatus , comprising: a rotor;', 'a housing;', 'a first endplate;', 'a second endplate;', wherein each member of said set of vanes spans a distance radially outward from said rotor, at least partially within a corresponding rotor-vane slot of said rotor, to said housing, and', 'wherein said rotor, said housing, said first endplate, said second endplate, and said set of vanes form a set of expansion chambers; and, 'a set of vanes,'}, at a first point in time, a first inlet port through said first endplate into a first expansion chamber of said set of expansion chambers; and', 'at the first point in time, a second inlet port through at least one of said first endplate and said second endplate into a second expansion chamber of said set of expansion chambers., 'at least two injection ports into said rotary engine, said at least two injection ports comprising], 'a rotary engine, said rotary engine comprising2. The apparatus of claim 1 , wherein claim 1 , at the first point in time claim 1 , a first injection port of said at least two injection ports connects to a first expansion chamber of said set of expansion chambers claim 1 , wherein claim 1 , at the first point in time claim 1 , a second injection port of said set of injection ports connects to a second expansion chamber of said set of expansion chambers.3. The apparatus ...

Scroll compressor

A scroll compressor including a center housing; a front housing fastened to the center housing and forming a suction chamber; a rear housing fastened to the center housing and forming a compression mechanism accommodation space. Fixed scroll is in the compression mechanism accommodation space. An orbiting scroll interposes between the center housing and the fixed scroll forming a compression chamber together with the fixed scroll. Fixed scroll may include a fixed scroll end plate and a fixed scroll side plate protruded from outer circumferential portion of fixed scroll end plate, fastened to the center housing, and forming orbiting space of orbiting scroll. Outer circumferential portion of the center housing may be formed with an inflow hole for communicating with the suction chamber. Distal end surface of the fixed scroll side plate is formed with a suction port for guiding the refrigerant of the inflow hole to the compression chamber.

ROTARY PISTON ENGINE WHICH ACTS AS A PUMP, CONDENSER OR MOTOR FOR A FLUID

The invention relates to a rotary piston engine () which operates as a pump, condenser or motor for a liquid or gaseous medium. The rotary piston engine () has a first gear () having a first central axis (I), a second gear () arranged opposite the first gear () and having a second central axis (II), and a drive shaft () having a third central axis (III) and a sliding plane () fixedly connected to the drive shaft (). The first central axis (I) and the second central axis (II) enclose an angle (α) which is not equal to 180°. The third central axis (III) and at least one central axis (I, II) from the group comprising the first central axis (I) and second central axis (II) enclose an angle (α α) which is not equal to 0° or 90°. The sliding plane () and the central axis (I, II) are perpendicular to each other. The first gear () has a first end face () having a first has toothing () that h at least one first tooth (), and the second gear () has a second end face () having a second toothing () that has at least one second tooth (), wherein a first number of first teeth and a second number of second teeth differ from each other. The first tooth () and the second tooth () engage with each other in such a way that a working chamber () is formed by means of a meshing of the teeth (). A volume formed by means of the at least one working chamber () is changed by the meshing of the teeth (). The at least one working chamber () is delimited by a conically shaped inner wall () of a housing (). The at least one working chamber () can be connected to a supply flow () and an outlet flow () for the medium. According to the invention, a component () from the group comprising the first gear () and second gear () is coupled to the housing () such that a rotation of the drive shaft () causes only the components () to tumble. The respective other components () from the group comprising the first gear () and second gear () is coupled to the sliding plane () such that the respective other ...

Negative Pressure Pump and Cylinder Head Cover

A negative pressure pump has: a housing; a rotating shaft having a shaft portion, and a supporting portion ; a vane that is supported at the supporting portion so as to freely move reciprocally in a direction orthogonal to the rotating shaft, and that rotates integrally with the rotating shaft, and whose end portions slide on an inner wall surface, and that sections an interior of the housing into plural spaces; an intake portion that is formed in the housing; a discharging portion that is formed further toward a vane rotating direction downstream side than the intake portion; and a concave portion that is formed in a bottom surface between the discharging portion and a curved surface in a vane rotating direction, and that communicates with a circular hole, and guides the lubricant, that is moved by the vane, to the circular hole.

Scavenge gear plate for improved flow

A pump includes a first gear plate and a first pair of counter rotating gears positioned on a first side of the gear plate. The pair of counter rotating gears draws fluid from an inlet and transfers the fluid into an outlet of a common manifold. The gear plate has a cutout to increase the flow of fluid into the common manifold.

Improved volumetric compressor

A compression device compresses a gas by means of a compression fluid includes a compression chamber for the generation of a compressed mixture of the gas and the compression fluid. A first driving compression rotor and a second compression rotor mesh with each other and are housed inside the compression chamber. The first driving rotor includes an end that projects from a wall of the compression chamber. A power source includes a transmission shaft suited to be set rotating by the power source. A transmission unit is interposed between the power source and the first driving rotor in such a way as to transmit the rotation of the transmission shaft to the first driving rotor. Containment means define a housing chamber to house the transmission unit. The wall of the compression chamber is at least partially defined by a wall of the containment means of the transmission unit.

CARTRIDGE VANE PUMP AND PUMP DEVICE

A cartridge vane pump includes a rotor, a plurality of vanes, a cam ring, a side member brought into contact with a first end surface of the cam ring, a cover member brought into contact with a second end surface of the cam ring, the cover member being attached to the body, and a linkage member provided to extend between the side member and the cover member over an outer circumferential surface of the cam ring, the linkage member being configured to link the side member and the cover member. 1. A cartridge vane pump attached to a body of a fluid pressure device , the cartridge vane pump comprising:a rotor configured to be driven rotationally;a plurality of vanes provided in the rotor, the plurality of vanes being configured to reciprocate in a radial direction of the rotor;a cam ring having an inner circumference cam face with which the plurality of vanes are brought into sliding contact;a side member brought into contact with the rotor and a first end surface of the cam ring;a cover member brought into contact with the rotor and a second end surface of the cam ring, the cover member being attached to the body; anda linkage member provided to extend between the side member and the cover member over an outer circumferential surface of the cam ring, the linkage member being configured to link the side member and the cover member.2. The cartridge vane pump according to claim 1 , whereinthe linkage member configured to bias the cam ring and the side member towards the cover member.3. The cartridge vane pump according to claim 1 , wherein a linkage portion linked to one of the side member and the cover member;', 'an extended portion extended in an axial direction of the rotor from the linkage portion towards other of the side member and the cover member; and', 'a support portion projected out from the extended portion in a direction intersecting the extended portion, the support portion being configured to support the other of the side member and the cover member., 'the ...

Fixed Displacement Turbine Engine

An engine comprises a compression portion and a combustion portion. The compression portion comprises twin-screw rotors, male engaged with female. The combustion portion comprises twin-screw rotors, male engaged with female. The male compression rotor and the male combustion rotor share a same longitudinal axis, and the female compression rotor and the female combustion rotor share a same longitudinal axis. A combustion plate is disposed between the compression portion and the combustion portion, and prevents flow of gas from the compression portion to the combustion portion, except through a small orifice centrally located on the combustion plate. A valve is affixed to the male rotors adjacent to the combustion plate, covering the lobes of the male rotors and extending beyond the lobes of the male rotors. The valve controls the flow of gas from the compression portion to the combustion portion. 1. An engine comprising:a compression portion comprising a first pair of male and female twin-screw rotors;a combustion portion comprising a second pair of male and female twin-screw rotors and a sparking device; anda combustion plate separating the compression portion from the combustion portion, the combustion plate configured to regulate flow of gas from the compression portion to the combustion portion for combustion.2. The engine of claim 1 , wherein the combustion plate is further configured to block flow of gas from the compression portion to the combustion portion claim 1 , the combustion plate further comprising an orifice configured to permit flow of a regulated amount of gas from the compression portion to the combustion portion for combustion.3. The engine of claim 1 , a male screw rotor of the first pair of male and female twin-screw rotors on the compression portion and a male screw rotor of the second pair of male and female twin-screw rotors on the combustion portion each comprising a plurality of helically-extending lobes claim 1 , each of the helically- ...

ROTOR AND ROTARY FLUID MACHINE

First closing member and second closing member close opening portions at both ends of cylindrical member in an axial direction. Base is housed in a space formed by cylindrical member, first closing member, and second closing member, and rotates around an axis in the same direction as the axial direction of cylindrical member. Resin layers are formed on thrust surfaces of base. Groove C is a plurality of concentric circular grooves or a spiral groove formed on each resin layer, and the center of circles of the circular grooves or the center of a spiral of the spiral groove is different from the rotation center of base. 1. A rotor comprising:a base housed in a space formed by a cylindrical member and a closing member that closes an opening portion at each of both ends of the cylindrical member in an axial direction, the base rotating around an axis in the same direction as the axial direction;a resin layer formed on a thrust surface of the base; anda plurality of concentric circular grooves or a spiral groove formed on the resin layer, the center of circles of the circular grooves or the center of a spiral of the spiral groove being different from a rotation center of the base.2. The rotor according to claim 1 , whereinan amount of eccentricity of the center of the circles of the circular grooves or an amount of eccentricity of the center of the spiral of the spiral groove relative to the rotation center of the base is greater than or equal to a groove pitch.3. A rotary fluid machine comprising:a cylindrical member;a closing member that closes opening portions at both ends of the cylindrical member in an axial direction; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the rotor according to .'}4. A rotary fluid machine comprising:a cylindrical member;a closing member that closes opening portions at both ends of the cylindrical member in an axial direction; and{'claim-ref': {'@idref': 'CLM-00002', 'claim 2'}, 'the rotor according to .'} This application is a U.S. ...

Hydrostatic Positive Displacement Machine

A hydrostatic positive displacement machine has a cam ring for adjusting the displacement volume thereof. This cam ring is guided in translation by approximately diametrically arranged outer circumferential surface segments on associated inner surface segments of a housing of the positive displacement machine. 1. A hydrostatic positive displacement machine , comprising:a housing;a rotor mounted in the housing so as to be rotatable about an axis of rotation, said rotor being fitted with substantially radially movable space dividers; anda cam ring having an inner circumferential surface on which the space dividers are supported,wherein an annular space is formed between the rotor and the cam ring, said annular space being subdivided by the space dividers into hydrostatic working spaces configured to revolve with the rotor and be brought alternately into pressure medium connection with a high pressure and a low pressure,wherein the cam ring has approximately diametrically arranged outer circumferential surface segments configured to guide the cam ring in translation transversely to the axis of rotation on associated inner surface segments of the housing,wherein at least one of the outer circumferential surface segments has a topology which deviates from that of a plane in a load-free mode of the positive displacement machine.2. The positive displacement machine according to claim 1 , wherein a contact area of the at least one of the outer circumferential surface segments with the inner surface segment is approximately equal to the at least one of the outer circumferential surface segment in a loaded mode.3. The positive displacement machine according to claim 1 , wherein a surface pressure between the at least one of the outer circumferential surface segments and the inner surface segment is distributed in a substantially spatially uniform manner in a loaded mode.4. The positive displacement machine according to claim 1 , wherein the topology is produced by one of ...

Repair of Cast Iron Bore Inner Diameter Surfaces

A method for repairing a worn portion in an inner diameter surface of a bore of a cast iron part is disclosed. The inner diameter surface of the bore may have an original surface geometry prior to wear. The method may comprise forming a crescent-shaped pocket in the inner diameter surface of the bore to remove the worn portion, installing an insert in the crescent-shaped pocket, and post-machining the insert to form a crescent-shaped insert that is flush with the original surface geometry of the bore inner surface diameter. 1. A method for repairing a worn portion in an inner diameter surface of a bore of a cast iron housing of a high-pressure gear pump , the inner diameter surface of the bore having an original surface geometry prior to wear , comprising:forming a crescent-shaped pocket in the inner diameter surface of the bore to remove the worn portion;installing an insert in the crescent-shaped pocket; andpost-machining the insert so that an inner diameter surface of the insert corresponds to the original surface geometry of the bore inner diameter surface.2. The method of claim 1 , wherein post-machining the insert comprises machining the insert to a crescent-shaped insert claim 1 , and wherein the crescent-shaped insert has an inner diameter surface that corresponds to the original surface geometry of the bore inner diameter surface.3. The method of claim 1 , wherein the insert is half-moon shaped prior to post-machining the insert.4. The method of claim 1 , wherein installing the insert comprises bonding the insert to the crescent-shaped pocket using an epoxy adhesive.5. The method of claim 1 , wherein installing the insert comprises bonding the insert to the crescent-shaped pocket by brazing.6. The method of claim 1 , wherein installing the insert comprises forming a box joint between the insert and a bore wall defining the crescent-shaped pocket.7. The method of claim 1 , wherein installing the insert comprises forming a dovetail joint between the insert ...

ROTARY STEAM MOTOR

Provided herein is a rotary steam motor comprising an inlet assembly, a rotor assembly, and an exhaust assembly. The inlet assembly includes an inlet port and an inlet housing, the inlet port being configured to allow steam to enter the inlet housing. The rotor assembly includes a rotor having a plurality of vane slots, a support shaft, and a plurality of vanes, wherein the support shaft is configured to rotate with the rotor, and each vane is configured to slidably engage within a respective vane slot. The exhaust assembly includes an exhaust port and an exhaust housing, the exhaust port being configured to allow steam to exit the exhaust housing. The rotary steam engine further comprises a variable duration throttle assembly, wherein the variable duration throttle assembly is configured to regulate the flow of steam into the rotor assembly from the inlet assembly. 1. A rotary steam motor comprising:an inlet assembly including an inlet port and an inlet housing, the inlet port being configured to allow steam to enter the inlet housing;a rotor assembly including a rotor, a support shaft, and a plurality of vanes, wherein the support shaft is configured to rotate with the rotor, and the rotor includes plurality of vane slots such that each vane is configured to slidably engage within a respective vane slot;an exhaust assembly including an exhaust port and an exhaust housing, the exhaust port being configured to allow steam to exit the exhaust housing; anda variable duration throttle assembly,wherein the rotor assembly is configured to receive steam from the inlet assembly, and the exhaust assembly is configured to receive steam from the rotor assembly, andwherein the variable duration throttle assembly is configured to regulate the flow of steam into the rotor assembly from the inlet assembly so as to provide substantially constant pressure expansion from the intake assembly through the exhaust assembly.2. The rotary steam motor of claim 1 , wherein the throttle ...

ROTARY PISTON AND CYLINDER DEVICES

A transmission assembly for a rotary piston and cylinder device, comprising a first gear () and a gear sub-assembly (), the first gear connectable to a rotatably mounted shutter () of the device, and the first gear extending from a side of the shutter, and the first gear connected to the gear sub-assembly which converts rotation to an axis of rotation different to that of the shutter. 119-. (canceled)20. A rotary piston and cylinder device , comprising:a rotor, the rotor comprising a piston, the rotor is arranged to rotate about an axis of rotation,a stator,the rotor and the stator defining an annular working chamber, and a rotor surface in part defining the working chamber,the device further comprising a rotatable shutter which serves to divide the working chamber, but which comprises a slot to nevertheless allow passage of the piston, andthe rotor surface being a concave surface which faces generally radially inwards towards the axis of rotation of the rotor.21. A rotary piston and cylinder device as claimed in comprising:a transmission assembly comprising a first gear and a gear sub-assembly, the first gear connectable to the rotatable shutter of the device, the first gear extending from a side of the shutter, the shutter having an axis of rotation which is non-intersecting in relation to the axis of rotation of the rotor, and the stator comprising an opening through which the shutter is receivable in the working chamber so as to intersect said working chamber, andthe first gear connected to the gear sub-assembly which converts rotation to an axis of rotation different from the axis of rotation of the shutter, and the gear sub-assembly comprises a second gear which meshes with the first gear and the second gear has an axis of rotation parallel to that of the first gear.22. A rotary piston and cylinder device as claimed in in which the first gear is located radially inwardly of the shutter.23. A rotary piston and cylinder device as claimed in in which an axis of ...

PISTON MACHINE WITH COOLING FUNCTION

The invention relates to a piston machine which comprises: a housing with a chamber with has a substantially circle sector-shaped cross-section; a pivotal piston which is designed as a pivoting element, is arranged in the housing and comprises a first working surface, wherein the housing and the piston define at least one first variable working chamber; a drive or output which is connected to the piston; and an outlet which is arranged in the working chamber for discharging a working fluid. The housing has a cooling opening in at least one housing wall, said opening leading to the chamber at least for convectively cooling a piston side opposite the first working surface by means of a coolant. 1. Piston machine , comprising:a housing with a chamber which has a substantially circle sector-shaped cross-section,a pivotal piston which is designed as a pivoting element, is arranged in the housing and comprises a first working surface,wherein the housing and the piston define at least one first variable working chamber,a drive or output which is connected to the piston,an outlet which is arranged in the working chamber for discharging a working fluid,characterized in thatthe housing has a cooling opening in at least one housing wall, said opening leading to the chamber at least for convectively cooling a side of the piston opposite the first working surface by means of a coolant.2. Piston machine according to claim 1 ,whereinthe chamber is delimited by a wall, which is circular arc-shaped in cross-section, and the cooling opening is provided in the circular arc-shaped wall.3. Piston machine according to claim 2 ,whereinthe opening in the circular arc-shaped wall is defined by a center angle which is at most as large as a pivot angle of the piston.4. Piston machine according to claim 2 ,whereinthe circular arc-shaped wall defines a second center angle wherein a piston side facing the circular arc-shaped wall is circular arc-shaped in cross-section and defines a third center ...

GAS COMPRESSOR

A compressor body () which is formed such that a compression chamber (A) dr ivied by a rotor (), a cylinder (), side blocks () and vanes () performs only one cycle of intake, compression and discharge in a period of one rotation of the rotor (), and a housing () which covers the compressor body () are included, and an outline shape of a cross-section of an inner circumferential surface () of the cylinder () is formed such that in the period of the one rotation of the rotor (), (i) a region in which a capacity of the compression chamber A rapidly increases, (ii) a region in which the capacity of the compression chamber A rapidly reduces, (iii) a region in which a capacity reduction rate of the compression chamber A is smaller than a capacity reduction rate of the region (ii), and (iv) a region in which the capacity reduction rate of the compression chamber A is larger than a capacity reduction rate of the region (iii) are consecutively provided in order. 1. A gas compressor , comprising:a compressor body; anda housing which covers the compressor body, the compressor body, including:a rotor which has an approximately cylindrical shape, and rotates around a shaft;a cylinder which has an inner circumferential surface having an outline shape surrounding the rotor from an outside of an outer circumferential surface of the rotor, and in which a discharge part is formed;a plurality of plate-like vanes which are provided to receive a back pressure from vane grooves formed in the rotor and freely protrude outward from the rotor; andtwo side blocks which are provided on both end surface sides of the rotor and the cylinder, wherein the compressor body is formed such that a plurality of compression chambers divided by the rotor, the cylinder, the side blocks and the vanes are formed inside, and each compression chamber performs only one cycle of intake, compression and discharge through the discharge part of gas in a period of one rotation of the rotor, and an outline shape of a ...

Pistonless rotary motor for air compressor

A pistonless rotary motor for air compressor includes a triangular rotor rotatably disposed in a rotor cavity of a housing. The housing further includes two opposite, radially spaced first grooves in the peripheral wall and two opposite, radially spaced second grooves in the peripheral wall. The first groove is proximate the intake and the second groove is proximate the exhaust. The first grooves are disposed at a top dead center of the rotor relative to the rotor cavity and configured to release air having a first pressure when the rotor revolves eccentrically. The second grooves are disposed the top dead center of the rotor relative to the rotor cavity when the rotor revolves eccentrically and configured to release air having a second pressure which is less than the first pressure.

GAS-CYCLE SYSTEM FOR HEATING OR COOLING

A gas-cycle system operable using a Bell-Coleman cycle, the gas-cycle system comprising an expander () and a compressor () incorporated in a flow path (). The expander () and compressor () are integrated in a rotary machine (), and each comprises a rotor assembly () configured to define one or more zones () each of which changes continuously in volume during a rotation cycle of the rotor assembly. The expander () and compressor () are drivingly interconnected whereby rotational drive applied to one is transmitted directly to the other. Each rotor assembly () comprises an inner rotor () and an outer rotor () adapted to rotate about parallel axes at different rotational speeds. The inner rotors () are each drivingly connected to a common shaft for rotation therewith. The two outer rotors () are coupled together such that rotational drive applied to one is transmitted directly to the other. An air-cycle system and an air conditioning system () based on the gas-cycle system are also disclosed. 131.-. (canceled)32. A gas-cycle system operable using a Bell-Coleman cycle , the gas-cycle system comprising an expander and a compressor , the expander and compressor each comprising a rotor assembly configured to define a zone which changes continuously in volume during a rotation cycle of the rotor assembly , the expander and compressor being drivingly interconnected whereby rotational drive applied to one is transmitted directly to the other.33. The gas-cycle system according to claim 32 , wherein the rotor assembly of each of the expander and the compressor comprises an inner rotor and an outer rotor being a counterpart of the inner rotor claim 32 , the inner rotor and the outer rotor being configured to rotate about parallel axes at different rotational speeds claim 32 , the inner and outer rotors being configured to define the zone which changes continuously in the volume during the rotation cycle of the rotor assembly.34. The gas-cycle system according to claim 33 , ...

OIL-LUBRICATED SLIDE VANE ROTARY VACUUM PUMP WITH OIL SEPARATING AND RECONDITIONING DEVICE

An oil-lubricated slide vane rotary vacuum pump with a slide vane unit, and with an oil separating and reconditioning device, wherein oil and gas are separated by separating devices, possibly complemented by oil coolers and/or oil pumps. One or more monitoring and/or servicing devices are provided, and the oil separating and reconditioning device is installed in an oil separating and reconditioning housing. Side walls extend transversely to a plane of rotation of a slide vane rotor, and define a longitudinal extent of the oil separating and reconditioning housing. The one or more monitoring and/or servicing devices are arranged only in one or more cover parts which are attached to one or both end walls of the oil separating and reconditioning housing. The oil separating and reconditioning housing is formed with the side walls, the bottom wall and the top wall without being configured for a monitoring and/or servicing device. 129-. (canceled)30125633373131415161718191415613132122. An oil-lubricated slide vane rotary vacuum pump () with a rotary slide vane aggregate () , comprised of a rotary slide vane chamber () and a rotary slide vane rotor () , and with an oil separating and reconditioning device () , wherein oil and gas are separated in the oil separating and reconditioning device () by means of devices , wherein one or more monitoring and/or servicing devices () are provided for the mentioned devices , and the oil separating and reconditioning device () is accommodated in an oil separating and reconditioning housing () , with side walls ( , ) , a floor wall () , a ceiling wall () and end walls ( , ) , wherein the side walls ( , ) extend transverse to a rotational plane of the rotary slide vane rotor () , and define a longitudinal extension of the oil separating and reconditioning housing () , wherein , in terms of its longitudinal extension , the oil separating and reconditioning housing () consists of an extruded profile , in particular an aluminum extruded ...

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.

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 ...

PLANETARY ROTOR MACHINE MANIFOLD

Various apparatuses are provided for planetary rotor machines including a plurality of helical rotors and a corresponding manifold. In one example, the manifold includes a head plate to which each of the rotors is rotatably mounted. The head plate includes a fluid flow opening having a center coaxial with a central axis of the machine. The fluid flow opening comprises a plurality of ports that each correspond to one of the rotors. Each of the ports comprises an inwardly curving inner side extending between a starting point and an ending point, a first lateral arcuate side that forms with the inner side a first pointed notch in the head plate, and a second lateral arcuate side that forms with the inner side a second pointed notch in the head plate. The second lateral arcuate side is a mirror image of the first lateral arcuate side. The manifold substantially prevents fluid from bypassing a cavity created by the rotors of the machine.

Device for obtaining mechanical work from a non-thermal energy source (variants)

The invention relates to mechanical engineering. The present device for obtaining mechanical work from a non-thermal energy source comprises a cylindrical housing, a rotor, a vacuum chamber, movable elements, and systems for removal and supply of a working fluid. The rotor is provided with blades and is fastened to the power shaft, disposed inside the housing. The chamber is formed by the outside surface of the bladed rotor and the inside surface of the housing. The movable elements are mounted in diametric opposition inside the housing of the device and divide the chamber into equal parts. The shaft and blades of the rotor are hollow. The inlet ports and outlet ports are provided in surfaces of the rotor blades. Or outlet ports are provided in the housing. The technical result is an increase in the output, efficiency and environmental friendliness of the device, together with a simplified design.

DOUBLE-WORKING-MEDIUM EXPANDER USED FOR TWO-STAGE ORGANIC RANKINE CYCLE

A double-working-medium expander used for a two-stage organic Rankine cycle, comprising a cylinder body, a rotor disposed inside the cylinder body and provided with a plurality of slip sheets in a radial direction of the cylinder body, and a rotary shaft fixedly connected to the center of the rotor, wherein, the cylinder body is of an annular structure formed by two semi-oval structures which are in butt joint with unequal semi-major axes and equal semi-minor axes; the outer peripheral surface of the rotor can be rotationally tangent to the inner peripheral surface of the cylinder body at the butt joint position of the two semi-oval structures of the cylinder body; a low-temperature cycle volume for expanding the low-temperature working medium with a large flow and a small expansion ratio and a high-temperature cycle volume for expanding the high-temperature working medium with a small flow and a large expansion ratio are formed among two sides of the rotor and the cylinder body, respectively; and, a first fluid inlet and a first fluid outlet, which are arranged on the wall of the cylinder body, are communicated with the low-temperature cycle volume, and a second fluid inlet and a second fluid outlet, which are arranged on the wall of the cylinder body, are both communicated with the high-temperature cycle volume. In the present invention, two working mediums in the two-stage organic Rankine cycle can do expansion work in an expansion mechanism. 12124251212267128926101127. A double-working-medium expander used for a two-stage organic Rankine cycle , comprising a cylinder body () , a rotor () disposed inside the cylinder body () and provided with a plurality of slip sheets () in a radial direction of the cylinder body () , and a rotary shaft () fixedly connected to the center of the rotor () , wherein , the cylinder body () is of an annular structure formed by two semi-oval structures which are in butt joint with unequal semi-major axes and equal semi-minor axes; the ...

EXPANDER AND FLUID CIRCULATION SYSTEM COMPRISING SAME

An expander and a fluid circulation system comprising same are disclosed. The expander comprises a housing, an expansion mechanism, an exhaust pipe, an oil sump and a lubricant discharge channel. The expansion mechanism is provided in the housing to expand a high-pressure fluid into a low-pressure fluid. The exhaust pipe discharges the low-pressure fluid out of the expander and comprises an end portion assembled in a first opening of the housing and provided with an exhaust port; the low-pressure fluid enters the exhaust pipe via the exhaust port. The oil sump stores a lubricant in the housing. The lubricant discharge channel discharges the lubricant in the oil sump into the exhaust pipe and/or an external system pipeline and comprises an inlet end having an inlet located at a predetermined oil level of the oil sump and an outlet end having an outlet. 1. An expander , comprising:a housing;an expansion mechanism provided in the housing and configured to expand a high-pressure fluid into a low-pressure fluid;an exhaust pipe configured to discharge the low-pressure fluid out of the expander and comprising an end portion, wherein the end portion is fitted in a first opening of the housing and is provided with an exhaust port via which the low-pressure fluid enters the exhaust pipe;an oil sump located in the housing and storing a lubricant; anda lubricant discharge channel configured to discharge the lubricant in the oil sump into the exhaust pipe and/or an external system pipeline communicated with the exhaust pipe, wherein the lubricant discharge channel comprises an inlet end having an inlet and an outlet end having an outlet, and wherein the inlet is located at a predetermined oil level of the oil sump, and the lubricant entering the lubricant discharge channel is discharged into the exhaust pipe and/or the external system pipeline via the outlet.2. The expander according to claim 1 , wherein the lubricant discharge channel is provided by a separate oil discharge ...

FLUID DEVICE OUTPUT SHAFT WITH COATING

A fluid device includes a housing defining a central bore, a plurality of commutator holes that extend radially outward from the central bore and a plurality of axial passages in fluid communication with the commutator holes. A fluid displacement assembly is in fluid communication with the housing. The fluid displacement assembly includes volume chambers in fluid communication with the axial passages of the housing. An output shaft includes a valving portion disposed in the central bore of the housing. The valving portion includes a first and second lands and a valving land disposed between the first and second lands. The first land cooperates with the central bore to define a first journal bearing and the second land cooperates with the central bore to define a second journal bearing. A coating is applied to the first and second lands of the output shaft. The coating includes a polyamide 11 material. 1. A fluid device comprising:a housing defining a central bore, a plurality of commutator holes that extend radially outward from the central bore and a plurality of axial passages in fluid communication with the commutator holes;a fluid displacement assembly in fluid communication with the housing, the fluid displacement assembly including a plurality of volume chambers in fluid communication with the axial passages of the housing;an output shaft having a valving portion disposed in the central bore of the housing, the valving portion having a first land, a second land and a valving land disposed between the first and second lands, wherein the first land cooperates with the central bore of the housing to define a first journal bearing and the second land cooperates with the central bore of the housing to define a second journal bearing; anda coating applied to the first and second lands and the valving land of the output shaft, the coating including a polyamide 11 material.2. The fluid device of claim 1 , wherein the polyamide 11 material is at least 50% by weight of ...

ROTARY DRIVE

A rotary drive includes a housing; a shaft rotatably mounted within the housing and rotatable about a drive axis; a passage internal the housing and extending circumferentially about the shaft; a stator vane within the passage; and a rotor vane within the passage. The stator and rotor vanes are movable between respective closed positions in which the stator and rotor vanes separate the passage into a circumferentially expanding chamber in fluid communication with an inlet in the housing and a circumferentially collapsing chamber in fluid communication with an outlet in the housing, and respective open positions in which the rotor vane is movable circumferentially past the stator vane during rotation of the shaft. 1. A rotary drive comprising:a) a housing having a cylindrical casing extending along a drive axis between axially spaced apart first and second end caps;b) a shaft rotatably mounted within the housing and rotatable relative to the casing about the drive axis;c) an annular passage radially intermediate the shaft and the casing and bounded axially by the end caps;d) at least one stator vane extending axially across the passage, the at least one stator vane pivotable about a stator vane axis fixed relative to the casing between a stator vane closed position for inhibiting circumferential fluid flow in the passage across the stator vane, and a stator vane open position;e) at least one rotor vane extending axially across the passage, the at least one rotor vane pivotable about a rotor vane axis fixed relative to the shaft between a rotor vane closed position for inhibiting circumferential fluid flow in the passage across the rotor vane, and a rotor vane open position,f) wherein when in the closed positions, the stator and rotor vanes separate the passage into at least one circumferentially expanding chamber and at least one circumferentially collapsing chamber spaced circumferentially apart from the at least one expanding chamber, the at least one expanding ...

Rotary Compressor

An aspect of the present disclosure involves a rotary compressor that is primarily optimized for use without the need for liquid lubricants, such as in the flow path of the fluid being compressed, and is efficient and quiet to use. The compressors described herein are efficient, run quietly, use less power, and last longer than those previously known in the art. The compressors are useful for medical applications and other clean gas applications, for instance, where lubricants could contaminate the fluid being compressed and/or increased noise and/or vibration may be problematic.

SCROLL TYPE FLUID MACHINE

A shell-integrated fixed scroll includes a cylindrical shell that is integrated with an end plate on which a scroll wrap is erected, and has a proximal end entirely connected with an outer periphery of the end plate and a leading end extending in the axial direction. The wall of the shell partially forms a thick portion having a large thickness from a proximal-end-side end (first) surface to a leading-end-side end (second) surface. In the thick portion, a screw hole for a bolt for fastening a rear housing to the first surface extends from the first surface toward the second surface. A screw hole for a bolt for fastening a front housing to the second surface extends from the second surface toward the first surface. The thick portion is partially cut away in the circumferential direction between the two surfaces to form opposing surfaces facing each other in the axial direction. 1. A scroll type fluid machine comprising an orbiting scroll and a fixed scroll , in which the fixed scroll comprises:a volute scroll wrap that is erected on an end plate;a cylindrical shell that is integrated with the end plate and has a proximal end entirely connected with an outer periphery of the end plate and a leading end extending in the direction in which the scroll wrap is erected; anda thick portion formed by partially increasing the thickness of a wall of the shell from a proximal-end-side end surface of the shell to a leading-end-side end surface of the shell so that in the thick wall of the shell, a screw hole for a first bolt for fastening a first housing to the proximal-end-side end surface extends from the proximal-end-side end surface toward the leading-end-side end surface, and a screw hole for a second bolt for fastening a second housing to the leading-end-side end surface extends from the leading-end-side end surface toward the proximal-end-side end surface,wherein the thick portion is partially cut away in a circumferential direction of the shell between the proximal-end- ...

Pump insert

A pump insert without a dedicated housing includes a first pressure plate, a cam ring, a rotor, a second pressure plate, and radially displaceable vanes arranged in slots of the rotor and which run with a vane upper edge thereof engaging a contour of the cam ring during rotation of the rotor. The cam ring includes stagnation point protrusions which are configured as separate, moveable components fastened to the cam ring.

PNEUMATIC MOTOR WITH DUAL AIR INTAKE

A pneumatic motor with dual air intake includes a pneumatic cylinder and a rotor. The pneumatic cylinder includes a cylinder body, and an elliptic-cylinder-shaped accommodating room located in the cylinder body. The cylinder body has two air inletting paths, two air venting paths, two air venting holes and a front axial hole, which communicate with the accommodating room and outside. The rotor includes a rotor body rotatably accommodated in the accommodating room of the pneumatic cylinder, a plurality of grooves parallel provided on the rotor body, a plurality of vanes accommodated in the grooves respectively, and a front axle extended from the rotor body and inserted through the front axial hole. As a result, the pneumatic motor with dual air intake is lowered in friction of the rotor when it rotates, raised in power output, and lowered in vibration when in use. 11. A pneumatic motor () with dual air intake comprising:{'b': 2', '20', '22', '20', '20', '24', '26', '28', '29', '22, 'a pneumatic cylinder () comprising a cylinder body (), and an accommodating room () shaped as an elliptic cylinder and located in the cylinder body (), the cylinder body () having two air inletting paths (), two air venting paths (), two air venting holes () and a front axial hole (), which communicate with the accommodating room () and outside; and'}{'b': 3', '30', '20', '2', '32', '30', '34', '32', '36', '30', '29, 'a rotor () comprising a rotor body () rotatably accommodated in the accommodating room () of the pneumatic cylinder (), a plurality of grooves () parallel provided on the rotor body (), a plurality of vanes () accommodated in the grooves () respectively, and a front axle () extended from the rotor body () and inserted through the front axial hole ().'}2120405040406040402950284030506060626466606268606440404262224464222462664226646844abb. The pneumatic motor () with dual air intake as claimed in claim 1 , wherein the cylinder body () comprises a middle pipe () claim 1 , a ...

Method of lining an inner surface of a tubular and system for doing same

A method of lining an inner surface of a tubular with a polymer, includes positioning a polymer injecting head within the tubular, forming an annular space between the injecting head and an inner surface of the tubular, injecting polymer through the injecting head into the annular space, and moving the polymer injecting head longitudinally relative to the tubular while injecting polymer.

ENGINE ASSEMBLY WITH TURBINE SUPPORT CASING

An engine assembly having an internal combustion engine, a turbine module including a turbine casing, a support casing rigidly connecting the turbine casing to a remainder of the assembly, and an inlet scroll connected to the turbine casing without any direct rigid connection to the support casing. The inlet scroll includes an inlet pipe for each engine exhaust port. An exhaust pipe is provided for each exhaust port, connected to and providing fluid communication between the respective exhaust port and inlet pipe. The exhaust pipe is movable relative to at least one of the exhaust port and the inlet pipe at a corresponding connection therewith. One of the exhaust and inlet pipes floatingly extends through an opening defined in the support casing. The assembly may be a compound engine assembly. 1. An engine assembly comprising:an engine core including an internal combustion engine having an exhaust port;a turbine module including a turbine casing containing a turbine, a support casing rigidly connecting the turbine casing to a remainder of the assembly, and an inlet scroll connected to the turbine casing without any direct rigid connection to the support casing, the inlet scroll including an inlet pipe in fluid communication with an inlet of the turbine; andan exhaust pipe connected to and providing fluid communication between the exhaust port and the inlet pipe, the exhaust pipe movable relative to at least one of the exhaust port and the inlet pipe at a corresponding connection therewith;wherein one of exhaust and inlet pipes floatingly extends through a corresponding opening defined in the support casing.2. The engine assembly as defined in claim 1 , wherein the one of the exhaust and inlet pipes extends through the corresponding opening at a non-zero angle with respect to a rotational axis of the turbine.3. The engine assembly as defined in claim 1 , wherein the inlet pipe extends through the corresponding opening claim 1 , the inlet and exhaust pipes being ...

Compressor Discharge Valve Assembly

A compressor may include a shell, a non-orbiting scroll, an orbiting scroll, and a discharge valve member. The shell may define a discharge chamber. The non-orbiting scroll may be disposed within the discharge chamber and includes a first end plate and a first spiral wrap extending from the first end plate. The orbiting scroll may be disposed within the discharge chamber and includes a second end plate and a second spiral wrap extending from the second end plate. The first and second spiral wraps mesh with each other to define fluid pockets therebetween. The second end plate includes a discharge passage extending therethrough. The discharge valve member may be attached to the second end plate and may be movable between an open position allowing fluid flow from the discharge passage to the discharge chamber and a closed position restricting fluid flow from the discharge passage to the discharge chamber. 1. A compressor comprising:a non-orbiting scroll including a first end plate and a first spiral wrap extending from the first end plate;an orbiting scroll including a second end plate and a second spiral wrap extending from the second end plate, the first and second spiral wraps meshing with each other to define a plurality of fluid pockets therebetween, the second end plate including a discharge passage extending therethrough;a driveshaft driving the orbiting scroll;a discharge valve member movable between an open position allowing fluid flow through the discharge passage and a closed position restricting fluid flow through the discharge passage; anda valve backer movable relative to the discharge valve member and the second end plate to force the discharge valve member into the closed position during a first portion of a rotation of the driveshaft and allow the discharge valve member to move into the open position during a second portion of the rotation of the driveshaft.2. The compressor of claim 1 , wherein the valve backer is rotationally fixed relative to the ...

HARMONIC UNIFLOW ENGINE

A reciprocating-piston uniflow engine includes a harmonic oscillator inlet valve capable of oscillating at a resonant frequency for controlling the flow of working fluid into the engine. In particular, the inlet valve includes an inlet valve head and a spring arranged together as a harmonic oscillator so that the inlet valve head is moveable from an unbiased equilibrium position to a biased closed position occluding an inlet. When released, the inlet valve head undergoes a single oscillation past the equilibrium position to a maximum open position and returns to a biased return position close to the closed position to choke the flow and produce a pressure drop across the inlet valve causing the inlet valve to close. In other embodiments, the harmonic oscillator arrangement of the inlet valve enables the uniflow engine to be reversibly operated as a uniflow compressor. 1. A harmonic uniflow engine comprising:a cylinder having a cylinder axis;a piston head reciprocable in the cylinder and together enclosing an expansion chamber,wherein the cylinder has an inlet at an inlet end fluidically connected to the expansion chamber and an outlet at a removed location from the inlet end;an intake header in fluidic communication with the inlet for channeling working fluid from a pressurized fluid source into the expansion chamber;an inlet valve for controlling the flow of working fluid from the intake header into the expansion chamber to effect a power stroke of the engine, said inlet valve comprising an inlet valve head and a resiliently biasing member arranged together as a harmonic oscillator so that the inlet valve head is moveable against an equilibrium restoring force of the resiliently biasing member from an unbiased equilibrium position located in the intake header to a biased closed position occluding the inlet, and so that upon releasing from the closed position the inlet valve head undergoes a single oscillation past the equilibrium position to an oppositely biased ...

SCROLL TYPE EXPANDER

A housing of a scroll type expansion machine includes: a suction port formed at a position on the opposite side to a drive shaft with a fixed scroll interposed therebetween; a discharge port formed on the side of a drive-side bearing closer to the tip end of the drive shaft; a low pressure chamber formed on the outer side of an orbiting-side scroll portion when viewed from the axial direction of the drive shaft; and a tip end-side low-pressure space being a space in which a sealing member is disposed, and has: a partition wall partitioning the tip end-side low-pressure space and the low-pressure chamber from each other; and a communication space communicating the tip end-side low-pressure space with the low-pressure chamber. 1. A scroll type expander used in a Rankine cycle in which a working fluid circulates , comprising:a housing;a drive shaft a base end of which is housed in the housing and a tip end of which projects out of the housing;a fixed scroll fixed to a side closer to the base end of the drive shaft rather than to the tip end of the drive shaft inside the housing;an orbiting scroll arranged on a side of the fixed scroll closer to the tip end of the drive shaft in a rotatable structure inside the housing;a bearing arranged on a side of the orbiting scroll closer to the tip end of the drive shaft inside the housing and configured to support the drive shaft in a rotatable structure with respect to the housing via a plurality of rolling elements; anda sealing member arranged on a side of the bearing closer to the tip end of the drive shaft inside the housing and configured to surround an outer peripheral surface of the drive shaft, whereinthe fixed scroll has a fixed-side scroll portion formed in a spiral shape when viewed from an axial direction of the drive shaft,the orbiting scroll has an orbiting-side scroll portion formed in a spiral shape when viewed from the axial direction of the drive shaft and meshing with the fixed-side scroll portion,the housing ...

Pump Body and Compressor with Pump Body

The disclosure discloses a pump body and a compressor with the pump body. The pump body includes: a flange structure; a bearing, the bearing being provided with an inner ring and an outer ring, the inner ring being rotatably disposed on the flange structure, and an end face of the inner ring being abutted against a contact face of the flange structure; and an oil guide channel provided inside a side wall of the inner ring, or inside the flange structure, or the side wall of the inner ring and inside the flange structure, an outlet of the oil guide channel being positioned between the end face of the inner ring and the contact face of the flange structure, so as to introduce lubricating oil between the end face of the inner ring and the contact face of the flange structure.

VANE PUMP AND DETERMINING METHOD FOR INNER PROFILE OF CAM RING COMPOSING THEREOF

Disclosed is a vane pump comprising a cam ring accommodated in a pump housing, a rotor accommodated rotatably with respect to a rotational shaft in the cam ring, and a plurality of vanes coupled to the rotor to discharge fluid, wherein the cam ring has a ring shaped inner profile varied between a maximum radius (Rmax) and a minimum radius (Rmin) in a circumferential direction with respect to the rotational shaft, and the ring shaped inner profile comprises: a cycloid curve passing through a maximum radius point; a circular arc passing through a minimum radius point; and a tangent line connecting the cycloid curve to the circular arc with a tangential curvature. 1. A vane pump comprising a cam ring accommodated in a pump housing , a rotor accommodated rotatably with respect to a rotational shaft in the cam ring , and a plurality of vanes coupled to the rotor to discharge fluid ,wherein the cam ring has a ring shaped inner profile varied between a maximum radius (Rmax) and a minimum radius (Rmin) in a circumferential direction with respect to the rotational shaft, andthe ring shaped inner profile comprises:a cycloid curve passing through a maximum radius point;a circular arc passing through a minimum radius point; anda tangent line connecting the cycloid curve to the circular arc with a tangential curvature.2. The vane pump of claim 1 , wherein the cycloid curve is determined by x and y coordinates obtained by Mathematical equation 1 below.{'br': None, 'i': x=R', 'R, '(θ−sin θ)−π'}{'br': None, 'i': y=R', 'KR, '(1−cos θ)+\u2003\u2003[Mathematical equation 1]'}(where, R is a radius of a generating circle drawing a cycloid curve, θ is an angle of a parameter, and K is a constant of 1.5 to 3)3. The vane pump of claim 2 , wherein the tangent line is inclined at an angle of 4° to 15° with respect to a radius connecting a center of the rotational shaft to the maximum radius point.4. A method for determining an inner profile of a cam ring of a vane pump comprising a cam ring ...

Scroll Fluid Machine

The purpose of the present invention is to provide a scroll fluid machine, the reliability of which is ensured and which can be manufactured with high productivity. The present invention provides a scroll fluid machine comprising: a stationary scroll having a spiral wrap upstanding therefrom; an orbiting scroll provided facing the stationary scroll and orbiting; a casing provided outside the orbiting scroll; a drive shaft for causing the orbiting scroll to orbit; an orbiting bearing for transmitting the rotational movement of the drive shaft to the orbiting scroll; and a plurality of rotation prevention mechanisms for preventing the orbiting scroll from rotating. The scroll fluid machine is characterized in that: the rotation prevention mechanisms have crankshafts and also have crank bearings for supporting the crankshafts; and the gap between each of the crankshafts and the corresponding one of the crank bearings is set to be greater than the gap between the drive shaft and the orbiting bearing. 1. A scroll fluid machine comprising:a stationary scroll in which a spiral lap part is installed;an orbiting scroll that is provided opposite to the stationary scroll and orbits;a casing that is provided outside the orbiting scroll;a drive shaft that makes the orbiting scroll orbit;an orbiting bearing that transmits a rotational movement of the drive shaft to the orbiting scroll; anda plurality of rotation prevention mechanisms that prevent rotation of the orbiting scroll, wherein:the rotation prevention mechanism has a crankshaft and a crank bearing that supports the crankshaft; and a gap between the crankshaft and the crank bearing is made larger than a gap between the drive shaft and the orbiting bearing.2. The scroll fluid machine according to claim 1 , wherein a locating hole that locates the orbiting scroll with respect to the casing is provided in each of the casing and the orbiting scroll.3. The scroll fluid machine according to claim 2 , wherein the locating hole ...

Rotary piston and cylinder device

A rotary piston and cylinder device ( 1 ) comprising: a rotor ( 2 ), comprising a rotor surface ( 2 a ), a piston ( 5 ) which extends from the rotor surface, a stator ( 4 ), a rotatable shutter ( 3 ), the rotor surface and the stator together defining an annular chamber, and the piston arranged to rotate, through the annular chamber, wherein when the chamber is viewed in axial cross-section, substantially a single surface of the stator in part defines the chamber ( 100 ).

Adaptive Connector Position For High/Low Voltage Inverter

A power inverter for an electric compressor including a rotatable high voltage housing and a rotatable low voltage housing. The rotatable high voltage housing has a high voltage connector, and the rotatable low voltage housing has a low voltage connector. The rotatable low voltage housing and the rotatable high voltage housing are in cooperation with each other. The rotatable low voltage housing and the rotatable high voltage housing are rotatable independent of each other. Each one of the rotatable high voltage housing and the rotatable low voltage housing is independently connectable to an electrical interface of the electric compressor. 1. A power inverter for an electric compressor comprising:a rotatable high voltage housing including a high voltage connector;a rotatable low voltage housing including a low voltage connector; the rotatable low voltage housing and the rotatable high voltage housing are in cooperation with one another;', 'the rotatable low voltage housing and the rotatable high voltage housing are rotatable independent of each other; and', 'each one of the rotatable high voltage housing and the rotatable low voltage housing is independently connectable to an electrical interface of the electric compressor., 'wherein2. The power inverter of claim 1 , wherein the rotatable high voltage housing and the rotatable low voltage housing are each independently rotatable 360°.3. The power inverter of claim 1 , wherein a portion of the rotatable low voltage housing is seated within an aperture defined by the rotatable high voltage housing.4. The power inverter of claim 1 , wherein the rotatable high voltage housing is between the rotatable low voltage housing and the compressor when the power inverter is coupled to the compressor.5. The power inverter of claim 1 , further comprising:a first pin connector extending from the rotatable high voltage housing, the first pin connector configured to cooperate with a first circular electrical interface of the electric ...

Positive displacement turbine

A method of urging rotation of an output shaft comprises delivering fluid to a motor coupled to the output shaft. The motor has a housing and at least one first chamber in the housing. The method further comprises operating the motor in a positive displacement mode for at least a first period of time and in a turbine mode for at least a second period of time to transfer energy from the fluid to rotation of the output shaft about its longitudinal axis.

ROTARY INTERNAL COMBUSTION ENGINE, GAS COMPRESSOR, AND LIQUID PUMP

A rotatory internal combustion engine includes a power module, a housing configured to retain the power module and including an intake and an exhaust, and a first sleeve including a sleeve intake, a sleeve exhaust, and an injector port. The first sleeve is removably coupleable within the housing to form an intake flow path between the housing intake and the sleeve intake, and an exhaust flow path between the housing exhaust and the sleeve exhaust. The first sleeve is interchangeable with a second sleeve that has at least one of a sleeve intake, a sleeve exhaust, and an injector port different than the corresponding sleeve intake, sleeve exhaust, and injector port of the first sleeve, and that is configured to modify at least one of a torque output of the engine, a power output of the engine, and a fuel timing of the engine, compared to the first sleeve. 1. A rotary internal combustion engine comprising:a power module;a housing configured to retain the power module, the housing including an intake and an exhaust; anda first sleeve including a sleeve intake, a sleeve exhaust, and an injector port, wherein the first sleeve is removably coupleable within the housing to form a substantially leak-free intake flow path between the housing intake and the sleeve intake, and a substantially leak-free exhaust flow path between the housing exhaust and the sleeve exhaust;wherein the first sleeve is configured to be interchangeable with a second sleeve having at least one of a sleeve intake, a sleeve exhaust, and an injector port different than the corresponding sleeve intake, sleeve exhaust, and injector port of the first sleeve, wherein the second sleeve is configured to modify at least one of a torque output of the engine, a power output of the engine, and a fuel timing of the engine, compared to the first sleeve.2. A rotary internal combustion engine according to claim 1 , wherein the power module includes at least one piston assembly having a piston head coupled to a piston ...

Pump Housing for an Eccentric Screw Pump and an Eccentric Screw Pump Equipped Therewith

A pump housing for an eccentric screw pump, with a longitudinal axis and a hollow space constituted running axially between a drive-side opening and a pump-side opening, wherein the pump-side opening is enclosed by a main housing body and a lid fastened removably thereto, wherein the main housing body includes a ring segment-shaped axial guiding surface lying opposite the lid. 1. A pump housing for an eccentric screw pump , with a longitudinal axis and a hollow space constituted running axially between a drive-side opening and a pump-side opening , wherein the pump-side opening is enclosed by a main housing body and a lid fastened removably thereto wherein the main housing body comprises a ring segment-shaped axial guiding surface lying opposite the lid.2. The pump housing according to claim 1 , wherein the axial guiding surface extends only in a region of the main housing body covered by the lid.3. The pump housing according to claim 1 , wherein the lid includes a ring segment-shaped inner circumferential surface lying opposite the guiding surface claim 1 , which inner circumferential surface has the same distance radially from the longitudinal axis as the guiding surface and is bounded axially on the inside by a projection of the lid extending radially inwards.4. The pump housing according to claim 1 , wherein the guiding surface is bounded axially on the outside by a projection of the main housing body.5. The pump housing according to claim 1 , wherein a contact plane runs between the lid and the main housing body obliquely with respect to the longitudinal axis of the pump housing.6. The pump housing according to claim 1 , wherein a stator flange element capable of being coupled with the pump housing is axially displaceable on the guiding surface and the lid fastened to the main housing body prevents a displacement of the stator flange element in the direction of the drive-side opening.7. The pump housing according to claim 6 , wherein the main housing body ...

Horizontally Split Screw-Spindle Pump

The invention relates to a screw pump (), in particular a double screw pump, s comprising a multiple-piece housing () and at least two coupled rotors () which form chambers with in each case at least one thread-shaped profile () which is configured at least in regions with helical channels () and with dividing walls () which delimit the channels (), wherein the rotors () perform an opposed rotor rotation, and the dividing walls () engage into one another in a gearwheel-like manner, a running housing part (), wherein the running housing part () encloses the rotors () without contact, wherein the rotors () form, with the running housing part (), at least one conveying chamber () for the fluid to be conveyed, wherein the conveying chamber () migrates axially along the rotor axis () and conveys the fluid from a suction chamber () into a pressure chamber (), a suction-side connector element () which is connected fluidically to the suction chamber (), and a pressure-side connector element () which is connected fluidically to the pressure chamber (), wherein the suction-side connector element () and the pressure-side connector element () are arranged on a connector housing part () of the multiple-piece housing (), wherein the housing () has a planar dividing plane () which runs parallel to the rotor axes () between the running housing part () and the connector housing part (). 2. Screw pump according to claim 1 , wherein the dividing plane extends through the suction chamber and the pressure chamber.3. Screw pump according to claim 1 , wherein the rotors are mounted in the running housing part.4. Screw pump according to claim 1 , wherein the running housing part is integral.5. Screw pump according to claim 1 , wherein the connection housing part is integral.6. Screw pump according to claim 1 , wherein the connection housing part claim 1 , together with the running housing part claim 1 , forms the suction chamber and the pressure chamber.7. Screw pump according to claim 1 , ...

VANE MACHINE HAVING STATIONARY AND ROTATING CYLINDERS WITH REDUCED CLEARANCE

Vane machine with rotating cylinder and first and second stationary cylinders with reduced rotating parts clearance working with compressible or incompressible fluid. The first stationary cylinder at its intake and cover has axial canal that takes fluid to the radial opening into the machine working chamber in order to decrease the vane machine diameter. 112345121411251. Vane machine with stationary and rotating cylinder parts with decreased rotating parts clearance , from the volumetric rotating machine group , that may be applied as a working or a driving machine , that as its working fluid utilises compressible or incompressible fluids , that has one or more stationary cylinders , that has one or more rotating cylinders , that has eccentrically positioned rotor with lateral plates and vanes , that has casing housing all the above mentioned parts , and that has covers closing the machine from its lateral sides , wherein the rotating parts clearance decrease is achieved in the variants (B) , (B) , (B) , (B) , (B) and (B); the cylinder rotating part is situated between first stationary cylinder (A) and second stationary cylinder (A); in the cover (D) is made fluid axial intake canal (); in the first stationary cylinder (A) is made fluid axial exhaust canal () to radial opening () charging the fluid into the vane machine working chamber; in casing (F) is made the working fluid axial distribution (F) to all stationary cylinders.21291081210713. The vane machine as claimed in and variant (B) claim 1 , wherein the cylinder rotating parts clearance is deceased by means of bearings positioned between the stationary cylinders (A) and (A); the bearings are pulled over common additional ring () with raised shroud () between the bearing inner rings (); spiral spring () is placed around the shroud (); between the bearing outer rings () is placed fixed distancer ().3112161413. The vane machine as claimed in and variant (B) claim 1 , wherein the cylinder rotating parts clearance ...

Rotary Device Having a Circular Guide Ring

A rotary device for use with a fluid includes a housing, a rotor, a ring, and at least one vane. The housing includes a tubular surface defining, in part, a tubular volume. The housing is segregated into at least a pumping zone positioned between first and second working zones. The first working zone is configured to receive a fluid and the second working zone is configured to output the fluid. The rotor is mounted for rotation about a rotation axis. The rotor includes a body mounted within the tubular volume. The body includes a plurality of slots. The ring is at least indirectly coupled to the housing by way of a bearing. The at least one vane is associated with one slot of the plurality of slots. The at least one vane is connected at least indirectly to the ring and configured to rotate within the tubular volume. 115-. (canceled)16. A method of operating a rotary device , the method comprising: outputting the fluid from a second working zone;', 'pumping the fluid through a pumping zone positioned between the first working zone and the second working zone;', 'rotating a rotor about a first axis within the tubular volume, the rotor having a plurality of slots, each slot of the plurality of slots having a vane assembly at least partially disposed therein;', 'engaging a portion of the each vane assembly with a ring at least indirectly coupled to the housing to cause the ring to rotate about a second axis wherein the second axis is offset offset from the first axis., 'receiving a fluid in a first working zone of a housing, the housing having a tubular surface defining, in part, a tubular volume;'}17. The method of claim 16 , further comprising engaging the ring with a bearing to cause the bearing to rotate about a third axis radially offset from the first and second axes.18. The method of claim 16 , further comprising rotating the vanes about the first axis.19. The method of claim 18 , further comprising translating each vane within a respectively associated slot of ...

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.

Rotary Internal Combustion Engine

A rotary engine has a top housing with suction and exhaust ports and bottom housing arranged to receive a crank assembly and a cam assembly. The crank assembly has a crank plate rotatably placed above the bottom housing and a set of semi circular cranks provided at the top surface of the crank plate to travel along with the crank plate. The cranks are positioned opposite to each other and are aligned to the crank plate. A crank shaft arranged to pass through the top housing and bottom housing drive along with the crank plate. The cam assembly has a set of cams placed above the crank plate and arranged to pivot through pivot pins. The cams and the cranks revolve to form an eccentricity with the outer cavity ring and inner cavity ring. The outer cavity ring is provided to surround the crank above the crank plate and the inner cavity ring is placed inside the cranks such that upon rotation of the crank plate and the cranks, two variable volume outer chamber is formed in between the cranks and the outer cavity ring, and two variable volume inner chamber is formed in between the cranks and the inner cavity ring. 1. A rotary type internal combustion engine comprises ,{'b': 1', '2', '3', '4', '1', '4, 'a top housing () constructed with suction port () and exhaust port () and a bottom housing () arranged to receive a crank assembly and a cam assembly such that said crank assembly and cam assembly are assembled in between said top housing () and bottom housing ();'}{'b': 6', '4', '7', '6', '7', '6', '5', '6, 'a crank plate () rotatably placed above the bottom housing () and a set of semi circular cranks () provided at the top surface of said crank plate to travel along with said crank plate (), wherein said cranks () are positioned opposite to each other and are aligned to said crank plate () and a crank shaft () arranged to drive along with said crank plate ();'}{'b': 8', '6', '9', '8', '7', '10', '11, 'wherein said cam assembly has a set of cams (), each having radius on ...

ROTARY PUMP HAVING A CASING BEING FORMED WITH A COMMUNICATING HOLE COMMUNICATING A SPACE THAT IS BETWEEN THE SIDE PLATE AND THE WALL SURFACE OF THE DRIVING MACHINE

It is intended to provide a vacuum pump so that without upsizing the vacuum pump, noise and vibration are reduced, heat dissipation property is secured, and the casing is downsized. Therefore, at least one turning part is provided in an exhausting path formed in a casing body. The casing body is formed of a material whose thermal conductivity is higher than that of a rotor and vanes, and a cylinder part where the vanes slide is press fitted in the casing body. 1. A vacuum pump comprising:rotary compressing elements in a casing, a cylinder chamber in which the rotary compressing elements slide,', 'an expansion chamber which makes a compressed air exhausted from the cylinder chamber to be expanded, and', 'an exhausting path which connects the cylinder chamber and the expansion chamber, and at least one turning part is provided in the exhausting path., 'wherein the casing comprises'}2. The vacuum pump according to claim 1 , whereinthe exhausting path and the expansion chamber are adjacently provided at a peripheral part of the cylinder chamber in the casing.3. The vacuum pump according to claim 1 , whereina silence member formed of porous material is arranged in the exhausting path.4. The vacuum pump according to claim 1 , whereinthe casing comprises a cylindrical liner which forms the cylinder chamber,the cylindrical liner comprises an exhausting port which is connected to the exhausting path,a diameter of the exhausting port at an inside of the cylinder chamber is larger than a diameter of the exhausting port at an outside of the cylinder chamber, andthe exhausting port is formed to a taper shape whose diameter is reduced from the inside to the outside.5. The vacuum pump according to claim 1 , whereina rotary shaft which drives the rotary compressing elements is comprised, anda front end part of the rotary shaft is supported with a bearing which is provided in the casing.6. A vacuum pump comprising:rotary compressing elements in a casing, a casing body which is ...

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. 115-. (canceled)16. A rotary fluid pressure device , comprising:a housing assembly configured to rotatably support an output shaft, and defining a fluid inlet and a fluid outlet;a positive displacement device associated with the housing assembly and including a ring member and a star member, the star member eccentrically disposed within the ring member for relative orbital and rotational movement about an axis of rotation to define expanding and contracting fluid volume chambers resulting from the orbital and rotational movement;a valve mechanism including a valve spool, the valve spool rotatably disposed at, and cooperating with, the housing assembly to provide fluid communication between the fluid inlet and the expanding fluid volume chambers, and between the contracting fluid volume chambers and the fluid outlet;a main drive shaft defining a main drive shaft axis extending through a forward end and a rearward end of the main drive shaft, the main drive shaft including a hollow extending from—the rearward end along the main drive shaft to a closed end of the hollow opposite the rearward end, the main drive shaft engaging the output shaft at the forward end and engaging the star member at the rearward end to transmit torque between the output shaft and the ring member; anda valve drive shaft having a forward end and a rearward end, the valve drive shaft at least partially received within the hollow of the main drive shaft and engaging the main drive shaft within the hollow at the forward end of the valve drive ...

ELECTRIC GEAR PUMP WITH SPECIFIC PROPORTIONS FOR THE FLUID PASSAGES

The motor comprises an internal rotor having an external lob; an external rotor outside the internal rotor and having an internal lob engaging the external lob; and an inlet port and an outlet port. An inner diameter of the inlet port is less than a diameter of a dedendum circle of the internal lob, and an outer diameter of the inlet port is greater than a diameter of a dedendum circle of the external lob. An inner diameter of the outlet port equals the diameter of the dedendum circle of the internal lob. An outer diameter of the outlet port equals the diameter of the dedendum circle of the external lob. The inner diameter of the inlet port is less than the inner diameter of the outlet port. The outer diameter of the inlet port is greater than the outer diameter of the outlet port. 1. A motor , comprising:an internal rotor having an external lob;an external rotor disposed outside the internal rotor and having an internal lob formed to be engaged with the external lob; andan inlet port and an outlet port that are separated from each other using an inner circumference surface and an outer circumference surface acting as a boundary in the radial direction,wherein an inner diameter of the inlet port based on the inner circumference surface is less than a diameter of a dedendum circle of the internal lob,wherein an outer diameter of the inlet port based on the outer circumference surface is greater than a diameter of a dedendum circle of the external lob,wherein an inner diameter of the outlet port is the same as the diameter of the dedendum circle of the internal lob,wherein an outer diameter of the outlet port is the same as the diameter of the dedendum circle of the external lob,wherein the inner diameter of the inlet port is less than the inner diameter of the outlet port, andwherein the outer diameter of the inlet port is greater than the outer diameter of the outlet port.2. The motor of claim 1 , further comprising a housing accommodating a stator and a rotor core ...

UNITARY PUMP AND TURBINE ENERGY EXCHANGER

A positive-displacement unitary pump and turbine is operable as a fluid energy exchanger using a charging fluid as motive force and acting upon a separate feed fluid that exits the turbine at an elevated energy state. The rotor casing defines a rotor chamber having a contoured wall that forms a plurality of lobes, typically in an even number. Each lobe has an inlet port and an outlet port defined by the contoured wall, and the rotor has a plurality of vanes that follow the contoured wall as the rotor spins. The rotor is driven by the charging fluid entering first and second lobes, located generally opposite one another, and exiting the lobes at a lower energy state. The driven rotor is operable to elevate the energy level of a feed fluid in third and fourth lobes, located generally opposite one another. 1. A positive-displacement unitary pump and turbine comprising:a rotor casing defining an rotor chamber having a contoured wall forming a plurality of lobes of said chamber, said lobes comprising at least a first lobe, a second lobe, a third lobe and a fourth lobe;an inlet port and an outlet port defined in said contoured wall at each of said lobes;a rotor positioned in said rotor chamber, said rotor having an outer rotor surface spaced inwardly from said contoured wall at said at least four lobes; anda plurality of vanes mounted at said rotor and spaced circumferentially around said outer rotor surface, said vanes having distal end portions configured to slidably engage said contoured wall;wherein said rotor is rotatably drivable by a charging fluid at a higher energy state entering said first and second lobes at respective ones of said inlet ports and the charging fluid exiting said first and second lobes at a lower energy state via respective ones of said outlet ports; andwherein said rotor is operable to convert a feed fluid at a lower energy state entering said third and fourth lobes via respective ones of said inlet ports into a higher energy state upon exiting ...

ENGINE OIL PUMP

A variable displacement pump, and methods of manufacturing such systems are provided. The variable displacement pump can include a housing defining an inlet and an outlet, a rotor positioned between the inlet and the outlet, the rotor being configured to pump a liquid between the inlet and the outlet, and the rotor having a multiple of vane slots, a multiple of vanes, each disposed in a respective one of the multiple of vane slots, and a pendulum positioned between the rotor and the housing, the pendulum comprising a pendulum body and a stiffener, wherein the stiffener is located at least partially within the pendulum body, and wherein the rotor, the multiple of vanes, and the pendulum body are made of a polymer. 1. A variable displacement pump , comprising:a housing defining an upper surface, a lower surface opposite the upper surface, and an outer surface extending between the upper surface and the lower surface, the housing including an inlet and an outlet, the housing further defining an opening sized to receive a shaft;a cover coupled to the upper surface of the housing, the cover defining an opening sized to receive the shaft;a rotor positioned in the housing between the inlet and the outlet, the rotor defining an opening sized to receive the shaft, and the rotor being configured to pump a liquid between the inlet and the outlet, wherein the rotor defines a multiple of vane slots;a multiple of vanes, each disposed in a respective one of the multiple of vane slots; anda pendulum positioned between the rotor and the housing, the pendulum comprising a pendulum body and a stiffener, wherein the stiffener is located at least partially within the pendulum body, and wherein the rotor, the multiple of vanes, and the pendulum body are made of a polymer.2. The variable displacement pump of claim 1 , wherein the stiffener is insert molded into the pendulum body claim 1 , and wherein the stiffener is made of metal.3. The variable displacement pump of claim 1 , wherein the ...

Groove Trap Apparatus for Combustion and Compression Machinery

A combustion system and apparatus is disclosed. The apparatus employs a groove-shaped combustion area and a trap composed of a lid and a door. The lid is disposed in communication with the trap and is configured to slide within and over the groove-shaped combustion area during use. Combustion occurs within the groove-shaped combustion area, pushing the trap, whereby a rotor is forced to rotate, conveying power from a combustible material to perform work. As a corollary, the apparatus may be configured for use in the field of air compression and air decompression. Multiple groove-shaped combustion areas may be configured in a parallel or series orientation. Gas compression/decompression only utilizes a single groove, whereas combustion preferably utilizes a compression groove and a combustion groove.

AUTOMOTIVE VARIABLE MECHANICAL LUBRICANT PUMP

A mechanical lubricant pump includes a control ring which shifts between a maximum and a minimum eccentricity position, the control ring having a circumference with anti-spring and pro-spring hydraulic surfaces, a pump rotor having slidable vanes which rotate in the control ring, a preload spring which pushes the control ring into the maximum eccentricity position, a hydraulic pilot chamber which pushes the control ring into the minimum eccentricity position, a hydraulic pressure control circuit which controls a gallery pressure by regulating a pilot chamber pressure, and a hydraulic outlet chamber which surrounds a part of the circumference. The hydraulic pilot chamber is charged with a pump outlet pressure or with the gallery pressure of an engine. The hydraulic outlet chamber is charged with the pump outlet pressure and is connected to the pump outlet for a pressurized lubricant. The anti-spring hydraulic surface is larger than the counter-acting pro-spring hydraulic surface. 17-. (canceled)8. An automotive variable mechanical lubricant pump for providing a pressurized lubricant for an internal combustion engine , the automotive variable mechanical lubricant pump comprising:a control ring configured to be shiftable in a control ring sifting direction between a maximum eccentricity position and a minimum eccentricity position, the control ring comprising an outer control ring circumference which comprises an effective anti-spring hydraulic surface and a pro-spring hydraulic surface;a pump rotor comprising a plurality of slidable vanes which are configured to rotate in the control ring;a control ring preload spring configured to push the control ring into the maximum eccentricity position;a hydraulic pilot chamber configured to push the control ring into the minimum eccentricity position, the hydraulic pilot chamber being charged with a pump outlet pressure or with a gallery pressure of the internal combustion engine;a hydraulic pressure control circuit configured ...

Pump

A pump having a rotor that is rotatable about a rotation axis and comprises a rotor hub and a rotor collar that extends from the rotor hub in the radial direction and encircles it in an undulating manner, and a pump housing which comprises a first axial housing component, a central annular housing component and a second axial housing component, wherein a pump duct is formed in the axial direction by the first and second housing components and in the radial direction by the central annular housing component and the rotor, and also a pump in which the annular pump duct has a constant cross section and connects a first radially external inlet/outlet space to a second radially external inlet/outlet space, and the pump may include a blocking device which is arranged between the first radially external inlet/outlet space and the second radially external inlet/outlet space and which comprises a blocking element which blocks the pump duct in the axial direction on both sides of the rotor collar. 19.-. (canceled)10. Pump comprising: 'a pump housing which comprises a first axial housing component, a central annular housing component and a second axial housing component,', 'a rotor that is rotatable about a rotation axis and comprises a rotor hub and a rotor collar that extends from the rotor hub in the radial direction and encircles it in an undulating manner, and'}wherein a pump duct is formed in the axial direction by the first and second housing components and in the radial direction by the central annular housing component and the rotor.111. Pump according to claim , wherein the annular pump duct has a constant cross section and connects a first radially external inlet/outlet space to a second radially external inlet/outlet space , and the pump furthermore has a blocking device which is arranged between the first radially external inlet/outlet space and the second radially external inlet/outlet space and which comprises a blocking element which blocks the pump duct in the ...

VARIABLE LUBRICANT VANE PUMP

A vane pump for providing a pressurized lubricant includes a static pump housing defining an inlet and an outlet, a shiftable control ring with at least one slide support surface, a pump rotor with rotor vanes which rotate within the control ring, and metal slide support pad(s). The control ring shifts with respect to the pump rotor to vary an eccentricity and to thereby control a volumetric pump performance. The pump housing comprises a static control ring housing body which radially surrounds and supports the control ring, and two static pump housing lids which axially support the control ring housing body and the control ring. The control ring housing body is made of plastic. The metal slide support pad(s) is fixed to the static control ring housing body and, together with the at least one slide support surface, provides a friction bearing for the control ring. 16-. (canceled)7. A variable lubricant vane pump for providing a pressurized lubricant , the variable lubricant vane pump comprising:a static pump housing which defines a pump inlet and a pump outlet;a shiftable control ring comprising at least one slide support surface;a rotatable pump rotor comprising a plurality of rotor vanes which are configured to rotate within the shiftable control ring; andat least one metal slide support pad,wherein,the shiftable control ring is configured to be shiftable with respect to the rotatable pump rotor so as to vary an eccentricity of the shiftable control ring with respect to the rotatable pump rotor so as to control a volumetric pump performance,the static pump housing comprises,a static control ring housing body which is configured to radially surround and tosupport the shiftable control ring, andtwo static pump housing lids which are configured to axially support the static controlring housing body and the shiftable control ring,at least the static control ring housing body is made of a plastic, andthe at least one metal slide support pad is fixed to the static ...

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.

PACKAGED COMPRESSOR

The packaged compressor includes: an exhaust duct having an exhaust port; a gas cooler arranged to be inclined with respect to the exhaust port in the exhaust duct; and at least one sound insulating plate arranged in a direction perpendicular to the exhaust port in the exhaust duct, the sound insulating plate configured to partition the exhaust port. In the packaged compressor, the exhaust port is partitioned into divided openings by the sound insulating plate. Of the divided openings, an area of a first divided opening provided on a side where a distance between the gas cooler and the exhaust port is shortest is larger than an area of a second divided opening. 1. A packaged compressor comprising:a duct having an opening;a heat exchanger arranged to be inclined with respect to the opening in the duct; andat least one sound insulating plate arranged in a direction perpendicular to the opening in the duct and configured to partition the opening,wherein the opening is partitioned into a plurality of divided openings including a first divided opening by the sound insulating plate, andwherein, of the divided openings, the first divided opening provided on a side on which a distance between the heat exchanger and the opening is shortest is larger than areas of the others of the divided openings.2. The packaged compressor according to claim 1 , wherein an inner surface of the duct is covered with a sound absorbing material.3. The packaged compressor according to claim 1 ,wherein at least two of the sound insulating plates are arranged, andwherein a length of the sound insulating plate is longer than a length of another of the sound insulating plate arranged adjacent to a side on which a distance between the heat exchanger and the opening is shorter.4. The packaged compressor according to claim 3 , wherein the sound insulating plates are disposed at a predetermined equal space from the heat exchanger.5. The packaged compressor according to claim 1 , wherein a blocking ...

VARIABLE DISPLACEMENT OIL PUMP

A variable displacement oil pump is described. The oil pump has pump body connected to an intake channel and to a delivery channel, a rotor capable of rotating inside the pump body about a rotation axis and provided with a plurality of vanes. The oil pump has an oscillating stator arranged in an eccentric position around the rotor and pivoted inside the pump body at a rotation pin. The oil pump has adjustment means for adjusting the displacement of the oil pump which acts on the oscillating stator to displace it with respect to the rotor and position it in at least one predetermined operative position. The adjustment means has first thrusting means configured to exert a first thrusting action on a first outer surface portion of the oscillating stator arranged on a substantially opposite side with respect to the rotation pin taking as a reference the rotor. 1. A variable displacement oil pump , comprising:a pump body connected to an intake channel and to a delivery channel,a rotor capable of rotating inside the pump body about a rotation axis and provided with a plurality of vanes,an oscillating stator arranged in an eccentric position around the rotorand pivoted inside the pump body at a rotation pin, andadjustment means for adjusting the displacement of the oil pump which acts on the oscillating stator to displace it with respect to the rotor and position it in at least one predetermined operative position, first thrusting means configured to exert a first thrusting action on a first outer surface portion of the oscillating stator arranged on a substantially opposite side with respect to the rotation pin taking as a reference the rotor, and', 'at least one thrusting chamber defined between the pump body and a second outer surface portion of the oscillating stator arranged between the rotation pin and said first outer surface portion,', 'said at least one thrusting chamber being configured to be filled with a predetermined amount of a pressurised fluid to exert on ...

FREE ROTARY FLUID MACHINE

There is provided a free rotary fluid machine including: a main body which is provided in a hollow cylindrical shape, and has an elliptical inner circumferential surface; a rotor which is provided in the main body, and rotates about the same rotation center as the main body; tip seals which are provided at one side of the rotor so as to be in contact with the inner circumferential surface of the main body; and blades which are provided between the tip seals provided adjacent to each other, and supported by the tip seals, in which the blade has one end surface that faces the inner circumferential surface of the main body, and the other end surface that is opposite to one end surface, and centers of radii of curvature of one end surface and the other end surface are positioned at the same side. As described above, a space formed among the inner circumferential surface of the main body, the rotor, and the tip seal is sealed by the auxiliary tip seal, and as a result, it is possible to reduce friction between the tip seal and the main body and to prevent a leak of an introduced working fluid. 1. A free rotary fluid machine comprising:a main body which is provided in a hollow cylindrical shape, and has an elliptical inner circumferential surface;a rotor which is provided in the main body, and rotates about the same rotation center as the main body;tip seals which are provided at one side of the rotor so as to be in contact with the inner circumferential surface of the main body; andblades which are provided between the tip seals provided adjacent to each other, and supported by the tip seals,wherein the blade has one end surface that faces the inner circumferential surface of the main body, and the other end surface that is opposite to one end surface, and centers of radii of curvature of one end surface and the other end surface are positioned at the same side.2. The free rotary fluid machine of claim 1 , wherein the blade has tip seal contact portions that connect one ...

OPTIMAL EXPANDER OUTLET PORTING

An optimized mechanical expander or fluid expansion device with a delayed opening timing is disclosed. In the optimized design, rotors in the expander alternatingly rotate sequentially through an intake position in which the transport volume is open to the housing inlet, a closed position in which the transport volume is closed to the housing outlet, and a discharge position in which the transport volume is open to the housing outlet. During rotation, a first opening forms between the housing and each rotor. After further rotation, a second opening is formed that is located between the first opening and a back end of the rotor. In one aspect, the mechanical expander has an opening profile including an initial opening phase in which the opening between the rotor and outlet forms at a lesser rate than during a subsequent secondary opening phase. 1. A mechanical expander comprising:a. a housing having an interior structure defining an interior volume, an inlet, and an outlet; i. having a plurality of lobes, wherein each lobe defines a cusp extending between a front end and a back end; and', 'ii. being rotatable within the housing to form a transport volume between a leading lobe cusp, a trailing lobe cusp, and the housing interior structure,, 'b. a pair of parallel helical rotors disposed within the housing in a counter rotating non-contacting arrangement, each of the rotors i. an intake position in which the transport volume is open to the housing inlet;', 'ii. a closed position in which the transport volume is closed to the housing outlet; and', 'iii. a discharge position in which the transport volume is open to the housing outlet;, 'c. each rotor being sequentially rotatable through i. a first opening forms between the housing interior structure and the leading lobe cusp proximate the front end;', 'ii. a second opening forms between the housing interior structure and the leading lobe cusp between the first opening and the leading lobe cusp back end, the second ...

Friction-free Rotary Piston Scissor Action Motor / Hot Air Energy Generator

Many versions of scissor-action engines have existed. All such prior scissor-action engine designs have used rotary reciprocal movement between the rotary piston members. The present invention uses two rotary scissor-action piston members symmetrically separating the housing cylinder into two pairs of air chambers. Two pairs of air intakes and air exhausts are strategically positioned in relationship to the two air chambers. A paired gear transmission mechanism, called a “Butterfly Gear”, is linked to the rotors to control scissor action. This invention design is a “friction-free” rotary piston and momentum exchanging spring mechanism, allowing the rotary members to rotate at high speed like a turbine blade; thus resulting in higher efficiency, by reducing energy loss from air leaking and friction. Rotary scissor-action air motors can be rotated in reverse to operate as a compressor. The invention design is a system utilizing a heat exchanger container connected with two Rotary Scissor Action Motors; one as a compressor and the second as an air motor to generate energy from hot air. “The Hot Air Generator” can use concentrated sunlight or any other heating source. 1() Friction-free rotary piston scissor-action motor is comprised of two friction-free rotary pistons , bearing support , bouncing spring momentum exchange mechanism , Butterfly Gear driven mechanism and housing with two pairs of symmetrical placed intake and exhaust ports.2() Butterfly Gear driven mechanism claim 1 , as defined in claim 1 , comprised of a paired butterfly shape gear claim 1 , including a pair of driving gears claim 1 , which are mounted on the axle of each piston rotor claim 1 , and two transmission gears claim 1 , which are perpendicularly mounted on another axle; transmits torque from one piston claim 1 , through its driving gear to transmission gear claim 1 , to another piston.3() Butterfly Gears claim 2 , as defined in claim 2 , have the unique “Butterfly” shapes' which allow the pair ...

VARIABLE DELIVERY EXTERNAL GEAR MACHINE

An external gear machine (EGM) includes a housing, an inlet, a drive gear positioned in the housing and configured to be (i) driven by a mechanism when the EGM is operated as a pump, or (ii) drive an external mechanism when the EGM is operated as a motor, the drive gear having a plurality of teeth, a slave gear positioned in the housing having a plurality of teeth and configured to be driven by the drive gear, an outlet formed in the housing and configured to receive at least some of the volume of fluid via an outlet fluid communication channel, a first slider defining an inlet fluid communication channel and the outlet fluid communication channel, selective positioning of the first slider configured to vary net operational volumes of fluid communication between the inlet and the outlet, for a given rotational speed of the drive gear. 1. An external gear machine (EGM) , comprising:a housing;an inlet formed in the housing and configured to receive fluid from a supply;a drive gear disposed in the housing and configured to be (i) driven by a mechanism when the EGM is operated as a pump, or (ii) drive an external mechanism when the EGM is operated as a motor, the drive gear having a plurality of teeth;a slave gear disposed in the housing having a plurality of teeth and configured to be driven by the drive gear, the drive gear configured to engage the slave gear in an angular mesh zone, tooth space volumes defined by tooth spaces between each two consecutive teeth of the drive gear and each two consecutive teeth of the slave gear configured to receive volumes of fluid from the inlet via an inlet fluid communication channel as the corresponding teeth rotate about the inlet;an outlet formed in the housing and configured to receive at least some of the volume of fluid via an outlet fluid communication channel when the corresponding tooth space volumes in the angular mesh zone decrease as the corresponding teeth of the drive gear and slave gear come into contact with each ...

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.

Oscillatory Rotary Engine

An oscillatory rotary engine comprising a toroidal housing having an intake port and an exhaust port. The housing supports an output shaft and a plurality of stacked rotors are disposed within the housing and coupled to the output shaft. Each rotor includes a plurality of pistons disposed in spaced relation to each other about a circumference of the rotor. A resilient coupler connects the rotors to the output shaft. Preferably, the coupler comprises a plurality of nested spiral cuts extending through the rotor. Each piston may include a pawl that is operative to engage ratchets located around the housing, thereby allowing rotation of each rotor in only one direction. The oscillatory rotary engine may further include a compression bypass port that is operative to relieve intake air pressure during compression, whereby the engine has a compression ratio that is less than its expansion ratio. 1. An oscillatory rotary engine , comprising:a toroidal housing having an intake port and an exhaust port;an output shaft; and a rotor disk;', 'a plurality of pistons disposed about a circumference of each rotor disk;', 'a center aperture defined by each rotor disk; and', 'a resilient coupler of the rotor disk connecting the rotor disk to the center aperture and each of said plurality of stacked rotors is connected to said output shaft by the center aperture;, 'a plurality of stacked rotors disposed within said housing and coupled to said output shaft, each said rotor includingsaid resilient coupler includes a spiral shaped cut extending through at least one of said plurality of stacked rotors and having a common center with said center aperture.2. The oscillatory rotary engine of further comprising a compression bypass port operative to relieve intake air pressure during compression claim 1 , whereby the engine has a compression ratio that is less than its expansion ratio.3. The oscillatory rotary engine of claim 2 , including a valve that opens and closes said compression bypass ...

Rotary compressor

A rotary compressor may include a rotary shaft; a plurality of plates that supports the rotary shaft; a cylinder provided between the plurality of plates to define a compression space, and provided with a vane slot; a roller slidably coupled to the rotary shaft inside of the cylinder, and having a hinge groove on an outer circumferential surface of the roller; and a vane, a first end of which is slidably coupled to the vane slot of the cylinder, and a second end of which is rotatably coupled to the hinge groove of the roller. When an imaginary line passing through an axial center of the rotary shaft and a hinge center of the vane is a first center line, and a radial center line of the vane slot passing through the hinge center of the vane is a second center line, the vane slot is disposed such that the second center line is intersected by a predetermined tilting angle with respect to the first center line. With this structure, a roller reaction force is canceled to suppress an increase in side pressure or side wear between a vane and a vane slot into which the vane is inserted.

MULTI-STAGE VACUUM BOOSTER PUMP COUPLING

A multi-stage vacuum pump having an interstage coupling unit vacuum pump may include a first inter-stage coupling part defining a first portion of a void for receiving a common rotor shared by adjacent stages of the multi-stage vacuum pump; and a second inter-stage coupling part separable from the first inter-stage coupling part, the second inter-stage coupling part defining a second portion of the void for receiving the common rotor shared by adjacent stages of the multi-stage vacuum pump. In this way, a coupling is provided which enables an assembled rotor and assembled stages of the vacuum pump to be fixed together, since the assembled rotor can be received within the separable parts of the coupling which, in turn, can be fitted to the assembled adjacent stages. This enables the mechanical integrity of the rotor and adjacent stages to be preserved while still facilitating assembly of the multi-stage vacuum pump. 1: A multi-stage vacuum pump comprising:a first pumping stage comprising a first unitary stator;a second pumping stage comprising a second unitary stator; and a first inter-stage coupling part defining a first portion of a void for receiving a common rotor shared by adjacent stages of the multi-stage vacuum pump; and', 'a second inter-stage coupling part separable from the first inter-stage coupling part, the second inter-stage coupling part defining a second portion of the void for receiving the common rotor shared by adjacent stages of the multi-stage vacuum pump., 'an inter-stage coupling unit configured to couple the first pumping stage with the second pumping stage, the inter-stage coupling unit comprising2: The vacuum pump according to claim 1 , wherein the second unitary stator is configured to receive the inter-stage coupling unit therewithin.3: The vacuum pump according to claim 1 , wherein the first inter-stage coupling part defines a first portion of first and second coupling faces and the second inter-stage coupling part defines a second ...

SPHERICAL ENERGY CONVERTER

The invention relates to a spherical working chamber and to two flat rotary pistons as internally turning, rotating pistons that are used to produce energy, which flat rotary pistons are driven by means of a descent of creeks, rivers or gray water and rainwater from high-rise buildings. Because of the even rotation of the output shaft of the flange-mounted transmission, an electrical generator can be connected. The energy converter plus generator can also be used as a mobile unit in emergency situations at waterfalls in order to generate electricity. 15-. (canceled)6. An energy converter comprisinga) a housing which confines a spherical working chamber and in which an inlet opening and an outlet opening for a pressurized liquid or gaseous medium are arranged;b) a shaft and a hollow shaft receiving the latter, which are mounted rotatably in the housing, wherein each of an axis of rotation of the shaft and an axis of rotation of the hollow shaft coincide with a diameter of the working chamber;c) two flat rotary pistons which bear sealingly against an inner wall of the housing and have a circular profile, wherein one of the flat rotary pistons is connected torque proof to the shaft and the other flat rotary piston is connected torque proof to the hollow shaft;d) two toothed gears which are connected to either the shaft or to the hollow shaft via a first freewheel coupling, the first freewheel coupling preventing rotation of the toothed gears with respect to the shaft or the hollow shaft counter to the working direction of rotation; ande) an output toothed gear which meshes with the two toothed gears,wherein:f) two inlet openings opposite one another and two outlet openings opposite one another are arranged in the housing,g) the shaft and the hollow shaft are each supported in the housing via a second freewheel coupling, the second freewheel coupling preventing rotation of the shaft or of the hollow shaft counter to the working direction of rotation, andh) the two flat ...

Electric oil pump system

A stator (5) is fixedly fastened at its outer periphery by a cylindrical and thin metal collar (22). One end of the collar (22) is engaged with a pump housing (13). Multiple metal nuts (16) are embedded in insulators (21) fitted to stator cores (9) through insert molding. The stator (5) of a brushless motor (3) is fixed by screwing bolts (19) passed through the pump housing (13) from a pump plate (14), to nuts (16) embedded in the insulators (21).

전동식 펌프

실시 예는 모터 하우징; 상기 모터 하우징 내에 배치되는 스테이터; 상기 스테이터 내에 배치되는 로터; 상기 로터와 결합하고 상기 모터 하우징을 관통하는 회전축; 상기 모터 하우징 상에 배치되는 펌프 하우징; 상기 회전축에 결합하는 펌프 로터; 및 상기 펌프 하우징의 일면과 상기 모터 하우징의 일면 사이에 배치되는 오링을 포함하고, 상기 펌프 하우징은 상기 펌프 하우징의 일면 상에 배치되는 삽입홈, 유체를 수용하기 위해 상기 삽입홈의 바닥면에 배치되는 복수 개의 메인 그루브, 및 상기 삽입홈의 바닥면 중앙에 배치되는 삽입홀을 포함하고, 상기 모터 하우징은 상기 복수 개의 메인 그루브와 대응되는 서브 그루브를 포함하고, 상기 펌프 로터는 상기 삽입홈 내에 배치되는 전동식 펌프를 개시한다.

电动油泵装置

本发明提供一种电动油泵装置，定子（5）的周围被圆筒状薄壁的金属制的轴环（22）紧固固定。轴环（22）的一端与泵壳体（13）嵌合。在安装于定子铁芯（9）的绝缘体（21）中通过嵌入成形而埋设有多个金属制的螺母（16）。而且，通过将从泵板（14）穿过泵壳体（13）插入的螺栓（19）与埋设于绝缘体（21）的螺母（16）进行螺纹固定，来固定无刷马达（3）的定子（5）。

Роторно-поршневая машина объемного расширения "турбомотор" (варианты)

1. Роторно-поршневая машина объемного расширения «ТурбоМотор» включающая:а) корпус, имеющий круговую рабочую полость и впускные и выпускные каналы;б) по меньшей мере два рабочих вала, которые соосны круговой поверхности рабочей полости и оснащены с одной стороны лопастными поршнями и с другой стороны рычагами;в) по меньшей мере одно центральное неподвижное зубчатое колесо, которое соосно поверхности рабочей полости и рабочим валам;г) соосный рабочим валам выходной вал имеет эксцентрик, на котором установлены водило и планетарное зубчатое колесо, при этомд) планетарное зубчатое колесо находится в зацеплении с центральным неподвижным зубчатым колесом с внутренним зубчатым зацеплением с передаточным отношением i=n/(n+1) (где n=1, 2, 3, 4, 5… - ряд целых чисел),ж) водило шарнирно соединено шатунами с рычагами обоих рабочих валов, аз) количество лопастных поршней, установленных на каждом рабочем валу, равно n+1,отличающаяся тем, чтои) круговая рабочая полость корпуса (1) имеет впускные (18) и выпускные (19) каналы и/или выходные (27) и входные (28) каналы объема(ов) перетока, вынесенного(ных) за пределы рабочей полости,к) при этом эти каналы (18 и 19, 27 и 28) имеют последовательно смежно-расположенное подключение к круговой рабочей полости корпуса (1) по ходу движения лопастных поршней (5 и 6),л) причем как впускные (18) и выпускные (19) каналы, так и выходные (27) и входные (28) каналы расположены по обе стороны относительно мест смыкания граней лопастных поршней (5 и 6),м) а сами грани лопастных поршней (5 и 6) имеют угловую ширину, достаточную для одновременного перекрытия выходного (27) и входного (28) каналов.2. Роторно-поршневая машина по п.1, отличающаяся т РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F01C 1/07 (11) (13) 2012 101 836 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012101836/06, 06.11.2009 (71) Заявитель(и): Драчко Евгений Федорович (UA) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы ...

펌프 모듈 및 이를 포함하는 전동식 펌프

본 발명의 일 실시 예에 따르면 펌프 모듈은, 모터의 회전축에 결합하는 펌프 로터와 상기 펌프 로터를 수용하는 펌프 하우징을 포함하고, 상기 펌프 하우징은, 내측에 상기 펌프 로터를 수용하는 삽입홈이 형성된 로터 수납부, 그리고 상기 로터 수납부와 일체형으로 형성되고, 유체 흡입공 및 유체 배출공이 형성된 커버를 포함한다.

滚筒压缩机或滚筒泵或滚筒马达

本发明涉及机械工程技术领域，提供一种滚筒压缩机或滚筒泵或滚筒马达，其结构特征是：机壳的内壁与滚筒的外壁相内切，机壳内的两侧设置端盖，端盖的轴孔内设置转轴，转轴与机壳内圆柱面同心设置，转轴的偏心轴颈与滚筒的内孔同心设置，滚筒的一端设置贯通的敞口，滚筒的敞口周围设置U形围栏,U形围栏内滑动嵌入摆柱，摆柱的一侧圆柱面与机壳内表面设置的圆柱面凹槽相吻合，机壳上设置进气口和排气孔，滚筒的外圆柱面与机壳的内圆柱面及端盖围成的月牙形空腔被摆柱分隔成两个工作腔，构成滚筒式结构的滚筒压缩机或滚筒泵或滚筒马达。

미끄럼 베인기계(sliding vane machine)

본 발명은 하우징내에 편심으로 위치된 원통형 회전자(11)를 가진 미끄럼 베인기계에 관한 것으로, 상기 회전자는 일점에서 하우징의 내부와 접촉하는 원주를 가진 하우징내에 회전가능하게 장착되어 있으며 다수의 베인(13)으로 구비되어 있다. 이 베인은 완전한 방사상 방향의 이동을 위하여 회전하는 회전자(11)내의 홈(12)내로 안내되어 있으며 매체를 유입개구(15)로부터 송출개구916)까지 운반하기 위한 챔버(14)를 회전자(11) 및 하우징(1)과 함께 한정한다. 본 발명에 따르면, 각각의 베인(13)의 이동은 하우징내의 안내레이스(19)를 따라 이동하는 적어도 하나의 안내수단(17, 18)에 의해서 안내된다. 안내레이스 및/또는 하우징(1)의 내부는 각 베인(13)의 방사상 방향의 단말끝이 하우징(1)의 내부 외형선을 따르는 형상을 가지고 있다.

Screw fluid machine

旋转活塞发动机

公开了一种旋转活塞发动机，其包括缸体(1)、缸盖(15)、两组活塞(3A，4B)和离合器(10，42)其中两组活塞(3A，4B)分别设置在底座和活塞轮毂(63)的外径上，离合器包括安装在活塞轮毂内径中的单向超越离合器(10)和安装在活塞轮毂外侧面上的空心轴(32)内径中的可控单向超越离合器(42)，任意一组活塞旋转时，进气、压缩、做功和排气同时进行，一组活塞压缩行程结束时的位置在燃烧做功行程的另一组活塞的后部，从而缓和活塞旋转惯性力。该旋转活塞发动机的结构简单、紧凑并且可实现良好的蜜封性。