Positive displacement gear pump for use in e.g. internal combustion (IC) engine, has pump case formed of material e.g. steel, whose coefficient of thermal expansion is lower than that of material e.g. zinc, for pair of gears

Die Erfindung betrifft eine Verdrängerpumpe, insbesondere eine Außenzahnradpumpe (2), mit einem Gehäuse (4) und mindestens einem im Gehäuse (4) drehbar gelagerten Verdrängerelement, insbesondere zwei Zahnrädern (8, 10) mit Außenverzahnung (32), wobei das Gehäuse (4) einerseits und das Verdrängerelement (8, 10) andererseits aus unterschiedlichen Materialien hergestellt sind. Es wird vorgeschlagen, dass das Gehäuse (4) aus einem Material hergestellt ist, dessen Wärmeausdehnungskoeffizient kleiner ist als der Wärmedehnungskoeffizient des Materials, aus dem das Verdrängerelement (8, 10) hergestellt ist.

Ölpumpe

Eine Ölpumpe wird bereitgestellt, welche einen Nockenring 103 aus einem Material mit einem ersten linearen Ausdehnungskoeffizienten, ein Pumpenelement 104, das drehbar in dem Nockenring 103 angeordnet und in der axialen Länge kleiner als der Nockenring 103 ist, ein erstes Gehäuseelement 101, das auf einer der axial gegenüberliegenden Seiten des Nockenrings 103 angeordnet ist und aus einem Material mit einem zweiten linearen Ausdehnungskoeffizienten, der größer als der erste lineare Ausdehnungskoeffizient ist, gefertigt ist, und ein zweites Gehäuseelement 102, das auf der anderen der axial gegenüberliegenden Seiten des Nockenrings 103 angeordnet ist und aus einem Material mit einem dritten linearen Ausdehnungskoeffizienten, der größer als der erste lineare Ausdehnungskoeffizient ist, gefertigt ist, umfasst.

COMPRESSOR

GEAR WHEEL IMPULSE

RECIPROCATING PISTON COMPRESSOR

The invention relates to a compressor comprising at least one oil-free operated piston (5), which together with a cylinder insert (33) in each case delimits a ring gap open over the shared longitudinal section, wherein said ring gap allows for the leakage flow of the compressed medium. The piston (5) is coupled through a piston rod (42) to a support element (38) that can be movably guided in the direction of the piston's longitudinal axis (6) and is connected to a drive unit. The piston rod (42) interacts with the piston (5) and the support (38) via convex support areas (43) on each face of the piston rod, which allow for relative motion of the support element (38) in relation to the piston (5) perpendicular to the longitudinal axis (6). Accordingly, the piston (5) can be guided parallel in the cylinder insert (33) without being influenced by the vibrations of the drive elements. The piston (5) comprises a metallic base part (61) and a jacket (62) made of a plastic material which embodies ...

WAELZKOLBENPUMPE.

Turbine blade assembly and turbine system.

Es sind eine Turbinenschaufelanordnung (200) und ein Turbinensystem offenbart. Die Anordnung (200) weist eine Verbindung (108) mit mehreren Vorsprüngen und einer einteiligen Plattform (112) auf, wobei die Verbindung (108) eine erste axiale Länge aufweist; ein unterteiltes Profil mit einem Fussabschnitt (124), der von der Plattform (112) aus radial nach aussen verläuft, und einem Spitzenabschnitt (122), der mit dem Fussabschnitt (124) verbunden ist, wobei der Spitzenabschnitt (122) eine zweite axiale Länge aufweist, die kürzer ist als die erste axiale Länge; und ein Turbinenrad (105), das eine Aufnahme mit einer Geometrie definiert, die der Verbindung (108) mit mehreren Vorsprüngen entspricht und mit der Verbindung (108) mit mehreren Vorsprüngen verbunden ist. Ein Spitzenabschnittsmaterial, ein Fussabschnittsmaterial und ein Turbinenradmaterial werden so ausgewählt, dass das Turbinenradmaterial und das Fussabschnittsmaterial eine niedrigere Wärmebeständigkeit und eine höhere Wärmeausdehnung als das Spitzenabschnittsmaterial aufweisen.

Crosshead type-large diesel engine i.e. two-stroke-large diesel engine, for use in e.g. shipbuilding, has support element provided at wall, such that transversal extension of element is smaller than transversal height of sliding surface

The engine (1) has a tension rod extending along a transversal supporting wall (8) and connecting a base plate, a column and a cylinder section with each other. A crosshead is forwardly- and backwardly movable between an upper dead center (OTP) and a lower dead center (UTP) over a travel path (HS). A sliding surface (9) with transversal height is formed on the supporting wall, for supporting the crosshead. A support element (11) is partially provided at the supporting wall, such that transversal extension of the support element is smaller than the transversal height of the sliding surface.

Twin screw compressor

用于将气体(例如空气)供应给耗气装置的双螺杆压缩机，该螺杆压缩机包括两个用于压缩气体的互相作用的转子，以及齿轮装置。齿轮装置包括齿轮箱，该齿轮箱带有两个由第一材料制成的相对的端壁。两个由第二材料制成的齿轮安装在端壁中，其中第二材料具有与第一材料不同的热膨胀系数。为了降低温度对于齿隙的影响，两个齿轮设计为具有一个相同的小于15°的压力角。还描述了一种降低温度对于螺杆压缩机功能的影响的方法。

Improvements with the compressors and engines with co-operating rotors

POMPE DU TYPE ROOTS

CETTE POMPE COMPORTE, DANS UN CARTER 7, AU MOINS DEUX ROTORS 1, 2. AFIN D'OBTENIR UNE GRANDE CAPACITE DE POMPAGE SOUS UN ENCOMBREMENT REDUIT, CELA TOUT EN BENEFICIANT D'UNE GRANDE SECURITE LORS DU POMPAGE DE GAZ EXPLOSIFS, LES ROTORS 1, 2 SONT EN UNE MATIERE NON METALLIQUE, RESISTANT AUX HYDROCARBURES, A LA VAPEUR D'EAU, ET A DES TEMPERATURES EXCEDANT 200C, ET DONT LE COEFFICIENT DE DILATATION THERMIQUE EST AU PLUS EGAL A CELUI DE LA MATIERE DU CARTER 7. LES ROTORS SONT AVANTAGEUSEMENT EN MATIERE PLASTIQUE AVEC MATIERE DE CHARGE COMPORTANT DES FIBRES, OU EN MATERIAU COMPOSITE REALISE EN TECHNIQUE D'ENROULEMENT. LA PRESENCE D'UNE MATIERE DE CHARGE ELECTRIQUEMENT CONDUCTRICE PERMET D'EVITER L'ACCUMULATION DE CHARGES ELECTROSTATIQUES. LE RAPPORT DU DIAMETRE D A L'INTERVALLE A ENTRE AXES DES ROTORS EST SUPERIEUR A V2. LES ROTORS ET LES ROUES DENTEES QUI LES ACCOUPLENT SONT SITUES ENTRE LES PALIERS. LA CHAMBRE D'ASPIRATION 8 ET LA CHAMBRE DU MECANISME DE TRANSMISSION SONT EN UNE SEULE PIECE.

HYBRID PUMP BEARING FOR CONTAMINATION RESISTANCE

A bearing carrier is provided. The bearing carrier including: a bearing body of a first material having a shaft-receiving aperture and a bridge land with a finger cut to channel fluid pressurized by intermeshing of gears rotatably supported by the bearing carrier into an outlet defined by a housing enveloping the bearing carrier, wherein the bearing body includes a bearing face configured to be in a facing spaced relationship with the gears, wherein the bearing face includes a second material integral with the first material, wherein at least one of the first material and the second material define a portion of the bearing face of the bearing body extending about the shaft-receiving aperture, the portion of the bearing face excluding the bridgeland.

Ceramic-metal composite inserts

GEAR PUMPS AND MOTORS

1393886 Rotary positive-displacement machines JOSEPH LUCAS (INDUSTRIES) Ltd 18 April 1972 [28 April 1971] 11774/71 Heading F1F In an internally-meshing gear-pump, or motor, bearings 13, 18 for the gears 16, 17 are lubricated by the working fluid and lodged in housing parts 11, 12, 15, which to minimize the increase in bearing play as the working-fluid temperature rises are made of a material having a lower coefficient of thermal expansion than that of the material of which the gears are made e.g. titanium and steel respectively. Each of the bearings 13 may have a carbon liner 13a on a steel sleeve 13b. The pump shown is otherwise the same as that described in Specification 1269643.

GEAR PUMP WITH OPTIMIZED AXIAL PLAY

ROTARY PISTON ENGINE

ROTARY PUMP

Wall structure for rocket engine, has two layers to carry significant portion of structural load, where one layer exhibits higher thermal conductivity and lower thermal expansion than another layer

The structure has a layer (6) located closer to a source of thermal load than another layer (5). The two layers are arranged such that heat is allowed to conduct from layer (6) to the layer (5). The two layers carry a significant portion of a structural load. The layer (6) exhibits a higher thermal conductivity and a lower thermal expansion than the layer (5).

GEAR PUMP HAVING OPTIMAL AXIAL PLAY

The invention relates to a pump, particularly an oil pump for internal combustion engines, comprised of a pump case. This pump case consists of a pump cover (2) and of a pump flange (3), whereby at least one gear set (4) is placed between the pump cover (2) and the pump flange (3), and the pump cover and the pump flange are connected via at least one spacer element (5).

Scroll compressor including suction guide

A scroll compressor is disclosed. The scroll compressor may include a suction guide between a refrigerant suction pipe and a high/low pressure separation plate, and the suction guide may be fastened to a non-orbiting scroll or inserted into a suction guide protrusion that extends from the non-orbiting scroll. Accordingly, suction refrigerant may be partially suctioned into a compression chamber by the suction guide in advance before moving to the high/low pressure separation plate, so as to be prevented from coming into contact with the high/low pressure separation plate, while the suction refrigerant may also partially flow toward a drive motor without being suctioned directly into the compression chamber, so as to cool the drive motor, whereby efficiency of the compressor may be improved and an operation range of the compressor may be expanded.

VERFAHREN UND SYSTEM ZUR VERARBEITUNG EINES KRAFTFAHRZEUGMOTORBLOCKS

Ein Verfahren und System zur Verarbeitung eines Motorblocks, der eine Zylinderlaufbuchse beinhaltet. Der Motorblock weist ein erstes Material mit einem unterschiedlichen Wärmeausdehnungskoeffizienten auf als ein zweites Material, das die Zylinderlaufbuchse bildet. Das Verfahren beinhaltet das Bereitstellen einer isolierenden Barriere für die Zylinderlaufbuchse und das Abschrecken des Motorblocks. Die isolierende Barriere sorgt für eine geringere Abkühlgeschwindigkeit des zweiten Materials, das die Zylinderlaufbuchse bildet, als die Abkühlgeschwindigkeit des ersten Materials, das den Motorblock während des Abschreckens bildet.

Improvements in blowers and motors with cooperating rotors

... 1,021,101. Seals. WADE ENGINEERING Ltd. March 28, 1962 [March 29, 1961], No. 11535/61. Heading F2B. [Also in Division F1] The rotor shafts 6, 8 of a Roots blower are mounted in bearings 10, 12 in a housing external to the blower casing to permit differential thermal expansion between the casing and the gears connecting the shafts (see Division F1). Sleeves 48 integral with the housing pass through apertures 50 in the casing and carry sealing rings 52 which engage the walls of the apertures and permit relative transverse movement. Rotary seals for the shafts within the housings each comprise a sleeve 56 with circumferential ribs 62, and an oil slinging ring 58, both fixed to the shaft 6, a carbon ring 64 press-fitted within the housing, and a sealing ring 68 which carries a further carbon ring 66 pressed against the radial flank of the sleeve 56 by a spring 70. The sealing ring 68 is also formed with grooves 78, which may contain resilient 0-rings. A space 80 is vented to atmosphere through ...

Improvements in bearings for rotary meter or pump pistons

... 953,008. Rotary pumps and meters. BOPP & REUTHER G.m.b.H. April 5, 1961 [Nov. 30, 1960], No. 12187/61. Heading F1F. A rotary gear pump or meter piston includes a bushing of e.g., carbon made up of a plurality of parts, 4, 5, 6, which are fitted in the piston bore such that the part 5 bears on a stationary spindle, while parts 4 and 6 have a larger internal diameter, project slightly beyond the piston end faces and have clearance with the part 5. Spring rings 8 are provided to limit axial displacement of bushing part 5.

Fault tolerant micro-electro mechanical actuators

GUIDE FOR A RECIPROCATING BODY, WITH A LOW COEFFICIENT OF THERMAL EXPANSION

A guide for an axially reciprocating body disposed within a cylinder, the body, the cylinder and the guide being assembled at an assembly temperature and operating at a lower temperature, the guide having a lower coefficient of thermal expansion than both the body and the cylinder, whereby the gap between the guide and the cylinder is smaller than the gap between the reciprocating body and the cylinder, such that the guide serves a guiding function at lower operating temperatures, and sliding contact is maintained between the guide and the cylinder at both the assembly temperature and the operating temperature.

RECIPROCATING PISTON FOR A RECIPROCATING PISTON ENGINE AND RECIPROCATING PISTON ENGINE, AND CYLINDER OF A RECIPROCATING PISTON ENGINE

The disclosure relates to a reciprocating piston composed of ceramic material for a reciprocating-piston engine with crank drive, wherein the reciprocating piston is rigidly screwed to a piston rod by means of a screw, wherein between the reciprocating piston and the piston rod there is braced at least one disc composed of metallic material, wherein the screw is composed of a metallic material, wherein the coefficient of thermal expansion .alpha.Piston of the material of the reciprocating piston is lower than the coefficient of thermal expansion .alpha.Screw of the material of the screw, and the disc is an expansion compensation disc, wherein the coefficient of thermal expansion .alpha.Disc 1;2 of the material of the expansion compensation disc is greater than the coefficient of thermal expansion .alpha.Screw of the material of the screw, and to a reciprocating-piston engine having a reciprocating piston of said type, and to a cylinder of a reciprocating-piston engine having a cylinder of said type.

Mode of assembly of the pistons of rotating impeller machines

PISTON AND CRANKCASE ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE

The invention relates to an assembly (100, 200) consisting of a piston (10, 110, 210) made of a steel-based material, and a crankcase (140, 240) made of an aluminum-based material, for an internal combustion engine. Said piston (10, 110, 210) comprises a piston head (11) and a piston skirt (16), said piston head (11) having a peripheral annular part (15) and in the region of said annular part (15), a peripheral cooling channel (23). The piston skirt (16) comprises piston bores (17) provided with hub bores (18), which are arranged over the hub connections (19) on the underside (11a) of the piston head (11). Said piston hubs (17) are interconnected over the running surfaces (21, 22). According to the invention, at least one bore (24a, 24b, 24c, 24d) which is closed towards the outside is arranged between a running surface (21, 22) and a hub bore (18) such that the at least one bore (24a, 24b, 24c, 24d) leads into the cooling channel (23), and that the cooling channel (23) and the at least ...

Lightweight internal combustion engine with a ferrous reinforced cylinder block

An internal combustion engine includes a cylinder block made of a first material having a plurality of cylinders and an insert made of a second material having a greater stiffness and a lower thermal coefficient of expansion than the first material and casted-in-place into the cylinder block. For each cylinder of the cylinder block, the insert includes a bolted anchor having a first threaded bore suitable to be engaged by an head bolt for fixing a cylinder head to the cylinder block, and a second threaded bore suitable to be engaged by a cap bolt for fixing a main bearing cap to the cylinder block, and a lubrication gallery connected to a plurality of the anchors.

Scroll pump with controlled axial thermal expansion

Vacuum pumping apparatus includes a pump frame, a stationary scroll element secured to the pump frame, the stationary scroll element including a stationary scroll blade, an orbiting scroll element including an orbiting scroll blade intermeshed with the stationary scroll blade, a motor secured to the pump frame, and a crankshaft coupled between the motor and the orbiting scroll element for producing orbiting movement of the orbiting scroll blade relative to the stationary scroll blade when the motor is energized. The crankshaft includes a first component having a first coefficient of thermal expansion and a second component having a second coefficient of thermal expansion.

Internal Combustion Engine with a Variable Compression Ratio

The invention provides an internal combustion engine 110 compris­ing a cylinder block 120 defining at least a cylinder 125, and a reciprocating piston 140 accommodated inside the cylinder 125, wherein the piston 140 is made from a material having a thermal expansion coefficient lower than a thermal expansion coeffi­cient of a material which the cylinder block 120 is made from. The piston 140 material may be steel and the cylinder block 120 material may be aluminium. As the engine warms up and the cylinder increases in length more than the piston does, thus providing a bigger gap above the piston, and the compression ratio of the cylinder will be lowered. Independent cooling systems for the piston and the cylinder block are also disclosed.

LIFTING CYLINDER COMPRESSOR

INTERNAL COMBUSTION ENGINE USING OPPOSED PISTONS

A method of selecting material for use as an expansive element in a thermoelastic actuator design

PUMP HOUSING

L'invention se rapporte à un corps de pompe (2) ayant une enveloppe (3) à double paroi qui permet la circulation d'un premier fluide (4) au moins partiellement autour d'une chambre de compression (5) d'un second fluide (6), la compression étant effectuée au moyen d'au moins deux rotors allongés (7, 8), l'enveloppe (3) à double paroi ayant, d'une part, une première paroi (10) qui détermine le volume de la chambre de compression (5) et, d'autre part, une seconde paroi (11) qui s'étend autour de la première paroi (10) avec un certain espacement (12) destiné à la circulation du premier fluide (4), ledit corps de pompe (2) étant constitué en deux sous ensembles (13, 14), dits premier (13) et second (14), qui sont assemblés selon un plan de joint (15) sensiblement orthogonal aux axes longitudinaux (70, 80) des rotors (7, 8), chaque premier sous ensemble (13) et second sous ensemble (14) étant caractérisé en ce qu'il comprend un élément rigide (16) qui, moulé en un premier matériau thermiquement conducteur, présente deux faces opposées, dont une première face (18) et une seconde face (19), avec, située au-delà de la première face (18), d'une part, la première paroi (10) qui, moulée avec cet élément rigide (16), s'étend sensiblement orthogonalement à ladite première face (18), et, d'autre part, la seconde paroi (11) qui s'étend sensiblement orthogonalement à ladite première face (18) et parallèlement à la quatrième face (21) de la première paroi (10), tout en étant dépourvue de liaison avec ladite quatrième face (21), situées en retrait par rapport à la première face (18), des découpes (23) qui constituent chacune au moins un logement pour un premier organe de guidage en rotation (9) d'une des extrémités opposées (71, 72, 81, 82) d'un des rotors (7, 8).

PUMP HOUSING

L'invention se rapporte à un corps de pompe (2) ayant une enveloppe (3) à double paroi qui permet la circulation d'un premier fluide (4) au moins partiellement autour d'une chambre de compression (5) d'un second fluide (6), la compression étant effectuée au moyen d'au moins deux rotors allongés (7, 8), l'enveloppe (3) à double paroi ayant, d'une part, une première paroi (10) qui détermine le volume de la chambre de compression (5) et, d'autre part, une seconde paroi (11) qui s'étend autour de la première paroi (10) avec un certain espacement (12) destiné à la circulation du premier fluide (4), ledit corps de pompe (2) étant constitué en deux sous ensembles (13, 14), dits premier (13) et second (14), qui sont assemblés selon un plan de joint (15) sensiblement orthogonal aux axes longitudinaux (70, 80) des rotors (7, 8), chaque premier sous ensemble (13) et second sous ensemble (14) étant caractérisé en ce qu'il comprend un élément rigide (16) qui, moulé en un premier matériau thermiquement conducteur, présente deux faces opposées, dont une première face (18) et une seconde face (19), avec, située au-delà de la première face (18), d'une part, la première paroi (10) qui, moulée avec cet élément rigide (16), s'étend sensiblement orthogonalement à ladite première face (18), et, d'autre part, la seconde paroi (11) qui s'étend sensiblement orthogonalement à ladite première face (18) et parallèlement à la quatrième face (21) de la première paroi (10), tout en étant dépourvue de liaison avec ladite quatrième face (21), situées en retrait par rapport à la première face (18), des découpes (23) qui constituent chacune au moins un logement pour un premier organe de guidage en rotation (9) d'une des extrémités opposées (71, 72, 81, 82) d'un des rotors (7, 8).

Rotary piston engine

Light weight vane-type rotary compressor

A vane-type rotary compressor employs a cam ring made of an aluminium type metal which is different from the metal to form a rotor and rotor vanes and has a linear expansion coefficient selected to be greater than that of the metal of the rotor and vanes so as to compensate temperature difference therebetween.

Recess on tip of hybrid scroll compressor wrap to compensate for uneven thermal expansion

ROTARY PISTON FLUID-MACHINE

... 1503593 Rotary positive-displacement fluidmachines F WANKEL AND E HUTZENLAUB 7 March 1975 [7 March 1974] 9540/75 Heading F1F In a machine that may be an exhaust gas engine the widths of clearance gaps 8, 9, 10 between the housing 1, 2, 3 and the piston 5 vary inversely with temperature changes, this being achieved by e.g. use of materials with different thermal expansion coefficients or provision of different cooling rates for the housing and piston. To obviate jamming due to solid matter such as carbon, deposited by the working fluid between the piston and the housing end-plates there may be a collar 11 engaging with a thrust bearing and connected to the piston by a rod with a very small thermal expansion coefficient. Alternatively, a thrust bearing may be provided on each side of the piston, Fig. 2 (not shown), there bearing axial clearance between the bearing and a co-operating collar on the piston.

FAULT TOLERANT MICRO-ELECTRO MECHANICAL ACTUATORS

RECIPROCATING PISTON COMPRESSOR

The compressor contains at least one piston which, together with a cylinder insert, bounds a ring gap which is open over the common longitudinal section and permits a leakage flow of the compressed medium. The piston rod co-operates with a piston and a support part via support surfaces which permit relative movements of the support part with respect to the piston which extend transversely to the longitudinal axis. The piston has a metallic basic body and a sleeve member made of a plastic material on which the running surface of the piston is formed. The cylinder is manufactured of a material whose coefficient of thermal expansion corresponds at least approximately to a resultant coefficient of thermal expansion of the materials of the basic body and of the sleeve member. The compressor in accordance with the invention is particularly suitable for the oil-free compression of a gas.

DEVICE LIMITING DEVICE OF DEFORMATIONS FOR the CYLINDER Of an INTERNAL COMBUSTION ENGINE, INTERNAL COMBUSTION ENGINE COMPRISING SUCH a DEVICE, LIKE PROCESS OF INSTALLATION Of SUCH a DEVICE

A Method of Manufacturing a Thermoelastic Element

SCROLL TYPE COMPRESSOR APPARATUS WITH ADJUSTABLE AXIAL GAP AND BIMETALLIC ORBITAL SCROLL

A scroll type apparatus for fluid displacement is disclosed. In one embodiment, the apparatus (10) includes an adjustment mechanism (88) capable of being adjusted after assembly of the apparatus to close an axial gap between scroll members (14, 42) and account for manufacturing tolerances in apparatus components. In another embodiment, the apparatus includes an orbital scroll (42) of two portions (44, 46), with a supporting portion (44) surrounding an eccentric bearing (34) of higher density than that of a scroll portion (46). The center of mass of the orbital scroll is thus moved towards the eccentric bearing to reduce torquing of the scroll as it orbits. In a further embodiment, the apparatus includes n orbital scroll (42) having two portions, a supporting portion (44) surrounding an eccentric bearing (34) having a lower coefficient of thermal expansion than that of scroll portion (46), to reduce thermal expansion of the supporting portion, reducing misalignment of the orbital scroll ...

Hydraulic gap seal

Fluidvorrichtung mit einem Gehäuse (200, 2000), das aus einem ersten Material hergestellt ist, einem Kolben (100, 1000), der entlang einer Bohrung (300, 3000) in dem Gehäuse (200, 2000) bewegbar ist, und mindestens einem zwischen dem Gehäuse (200, 2000) und dem Kolben (100, 1000) vorgesehenen leckagebehafteten Dichtbereich (110, 1100), der in der Bohrung (300, 3000) Zonen mit zumindest zeitweise unterschiedlichen Fluiddrücken voneinander separiert, wobei entweder der Kolben (100, 1000) zumindest umfänglich und wenigstens im Dichtbereich, oder/und das Gehäuse (200, 2000) an einer Bohrungswand zumindest im Dichtbereich aus einem zweiten Material besteht, das einen größeren Wärmeausdehnungskoeffizienten aufweist als das erste Material des Gehäuses (200, 2000).

Heat shield for motor vehicle`s diesel engine components, has shielding part fixable at vehicle or machine parts by fixing units, and provided with compensation part that compensates temperature conditioned different material expansions

The shield has a shielding part (10) that is fixable at vehicle or machine parts by fixing units. The part is provided with a compensation part that compensates temperature conditioned different material expansions. The part (10) has a form of a half shell designed as a sheet deforming part. The part (10) is adjusted in a longitudinal direction so that the compensation part is guided transverse over the entire breadth of the part (10).

Toothed wheel transmission has interengaging cogged wheels wherein operating engagement angle of teeth is less than fourteen degrees

The toothed wheel transmission has two inter-engaging cogged wheels (1,4) wherein the operating engagement angle of the teeth (2,3) is less than 14 degrees to minimise the effect of a change in position on the toothed flank clearance. The wheels are preferably mounted in a housing whereby the housing and wheels have different coefficients of heat expansion.

Rotary pump

The pump has a housing 7 accommodating a plurality of rotors 1, 2 at least one of which is made of a non-metallic material having a smaller coefficient of thermal expansion than the material of which the housing is made so as to reduce friction between the rotors and/or the rotors and the housing. The non-metallic material may be a plastics one with a fibre filling or an electrically conducting filling e.g. carbon, to provide a leakage path for electrostatic charges. The housing, too, may be made of a non-metallic material. The working fluid may be a hydrocarbon fluid or steam. ...

Pump housing

ROTARY PISTON ENGINE

PUMP TYPE ROOTS

GEAR PUMPS AND MOTORS

SCROLL-TYPE FLUID MACHINE

Provided is a scroll-type fluid machine in which deformation of a rotary scroll can be reduced when a bearing is fixed to the inside of a boss part. In a scroll compressor, a fluid-tight chamber is formed by engaging a fixed scroll and a rotary scroll each having a spiral wall on a side of an end plate. The scroll compressor comprises: a metallic boss part (15C) protruding from the other side of the end plate of the rotary scroll; a metallic rotary bearing (12) inserted in the boss part (15C); a crankshaft configured to be rotated about an axis line and including a bush part, the bush part being inserted in the rotary bearing (12) and rotatably supported by the rotary bearing (12); and an insert member (31) disposed between the boss part (15C) and the rotary bearing (12), the insert member (31) having a thermal expansion coefficient greater than those of the boss part (15C) and the rotary bearing (12).

HUBKOLBENKOMPRESSOR

Recess on tip of hybrid scroll compressor wrap to compensate for uneven thermal expansion

Reciprocating compressor

RECIPROCATING PISTON FOR A RECIPROCATING PISTON ENGINE AND RECIPROCATING PISTON ENGINE, AND CYLINDER OF A RECIPROCATING PISTON ENGINE

The invention relates to a reciprocating piston (1) composed of ceramic material for a reciprocating-piston engine with crank drive, wherein the reciprocating piston (1) is rigidly screwed to a piston rod (26) by means of a screw (27; 76), wherein between the reciprocating piston (1) and the piston rod (26) there is braced at least one disc (13; 15) composed of metallic material, wherein the screw (27; 76) is composed of a metallic material, wherein the coefficient of thermal expansion aPiston of the material of the reciprocating piston (1) is lower than the coefficient of thermal expansion aScrew of the material of the screw (27; 76), and the disc (13; 15) is an expansion compensation disc (13; 15), wherein the coefficient of thermal expansion aDisc 1;2 of the material of the expansion compensation disc (13; 15) is greater than the coefficient of thermal expansion aScrew of the material of the screw (27; 76), and to a reciprocating-piston engine having a reciprocating piston (1) of said ...

Device supporting the rotors of driving or receiving rotating impeller machines for mediums of gas or vapor

METHOD FOR PRODUCING A COMPOSITE MATERIAL, IN PARTICULAR A CARBON PISTON, AND CARBON PISTONS

The invention relates to a method for producing a composite material, in particular for using carbon pistons, wherein the material is established with respect to thermal expansion and/or heat conduction having an anisotropy of 5 to 50%, in particular 10 to 40%, in particular 20 to 30%, by an anisotropic shaping method such as, for instance, extrusion, die pressing and/or vibration compaction of graphite and/or carbon or sintering of mesophase carbon, and also a carbon piston.

INTERNAL COMBUSTION ENGINE USING OPPOSED PISTONS

An internal combustion engine having a cylindrical outer housing (12) with inner cylindrical cylinders defining power cylinders circumferentially spaced in the engine. Each of the cylinders has opposed intake and exhaust pistons (38, 40). The intake and exhaust pistons (38, 40) use air bearings instead of conventional oil as a lubricant. The intake and exhaust pistons (38, 40) power a rotary cam (46, 48) mounted on opposed ends of the engine and a cam follower system positions the pistons (38, 40). The rotary cam is operatively connected to a drive shaft or power take off shaft (14). A four bar linkage system (172) is connected to the piston rod (56, 58) to minimize piston side loads. A jumper (84) connects the ends of the power cylinders to pressurize air drawn into the engine and to admit heated air, indirectly heated during the combustion cycle, to charge the power cylinder for improved efficiency and to purge the pressure cylinder after combustion.

Pumpe zur Förderung einer Flüssigkeit, insbesondere zur Förderung eines Abgasreinigungsadditivs

Pumpe (1) zur Förderung einer Flüssigkeit, aufweisend zumindest ein Pumpengehäuse (2) mit mindestens einem Einlass (3) und mindestens einem Auslass (4), mit einer Innenumfangsfläche (13) und einer geometrischen Achse (23), wobei innerhalb des Pumpengehäuses (2) ein Exzenter (5) angeordnet ist und der Exzenter (5) um die geometrische Achse (23) relativ zu dem Pumpengehäuse (2) exzentrisch bewegbar ist, wobei in einem Pumpenspalt (11) zwischen der Innenumfangsfläche (13) des Pumpengehäuses (2) und einer Außenfläche (6) des Exzenters (5) ein verformbares Element (7) angeordnet ist und wobei mit dem verformbaren Element (7) und der Innenumfangsfläche (13) des Pumpengehäuses (2) ein Förderkanal (8) von dem mindestens einen Einlass (3) zu dem mindestens einen Auslass (4) ausgebildet ist und wobei weiter das verformbare Element (7) von der Außenfläche (6) des Exzenters (5) entlang mindestens eines Abschnitts (14) des Förderkanals (8) derart gegen das Pumpengehäuse (2) gedrückt wird, dass mindestens ...

Anordnung aus einem Kolben und einem Kurbelgehäuse für einen Verbrennungsmotor

Die vorliegende Erfindung betrifft eine Anordnung (100, 200) aus einem Kolben (10, 110, 210) aus einem Werkstoff auf der Basis von Stahl und einem Kurbelgehäuse (140, 240) aus einem Werkstoff auf der Basis von Aluminium für einen Verbrennungsmotor, wobei der Kolben (10, 110, 210) einen Kolbenkopf (11) und einen Kolbenschaft (16) aufweist, wobei der Kolbenkopf (11) eine umlaufende Ringpartie (15) sowie im Bereich der Ringpartie (15) einen umlaufenden Kühlkanal (23) aufweist, wobei der Kolbenschaft (16) mit Nabenbohrungen (18) versehene Kolbennaben (17) aufweist, die über Nabenanbindungen (19) an der Unterseite (11a) des Kolbenkopfes (11) angeordnet sind, wobei die Kolbennaben (17) über Laufflächen (21, 22) miteinander verbunden sind. Erfindungsgemäß ist vorgesehen, dass mindestens eine nach außen verschlossene Bohrung (24a, 24b, 24c, 24d) vorgesehen ist, die zwischen einer Lauffläche (21, 22) und einer Nabenbohrung (18) angeordnet ist, dass die mindestens eine Bohrung (24a, 24b, 24c, 24d) in den Kühlkanal (23) mündet, und dass der Kühlkanal (23) und die mindestens eine Bohrung (24a, 24b, 24c, 24d) ein Kühlmittel (127, 227) in Form eines niedrig schmelzenden Metalls oder einer niedrig schmelzenden Metalllegierung enthalten. The present invention relates to an assembly (100, 200) of a piston (10, 110, 210) made of a steel-based material and a crankcase (140, 240) made of an aluminum-based material for an internal combustion engine the piston (10, 110, 210) has a piston head (11) and a piston shaft (16), wherein the piston head (11) has a circumferential ring section (15) and a circumferential cooling channel (23) in the region of the ring section (15), the piston shaft (16) having hub bores (18) provided with piston hubs (17) which are arranged on hub (19) on the underside (11a) of the piston head (11), wherein the piston hubs (17) via running surfaces (21, 22 ) are interconnected. According to the invention, provision is made for at least one bore (24a, 24b, 24c, 24d) ...

Engine housing assemblies

An engine housing assembly 10 comprising an engine housing component 12 at least partially defining a first bore 14 for receiving a first shaft (22, Fig. 3) and at least partially defining a second bore 16 for receiving a second shaft (32, Fig. 3), and a reinforcement member 100 cast into the housing component 12, the reinforcement member 100 having a lower coefficient of thermal expansion than the housing component 12, wherein the reinforcement member 100 at least partially surrounds the first and second bores. A method of manufacturing the engine housing assembly is also provided. The invention allows for improved thermal performance of the engine components, particularly the first and second shafts which may be coupled.

Gear pump having optimal axial play

SCROLL TYPE COMPRESSOR APPARATUS WITH ADJUSTABLE AXIAL GAP AND BIMETALLIC ORBITAL SCROLL

A scroll type apparatus for fluid displacement is disclosed. In one embodiment, the apparatus (10) includes an adjustment mechanism (88) capable of being adjusted after assembly of the apparatus to close an axial gap between scroll members (14, 42) and account for manufacturing tolerances in apparatus components. In another embodiment, the apparatus includes an orbital scroll (42) of two portions (44, 46), with a supporting portion (44) surrounding an eccentric bearing (34) of higher density than that of a scroll portion (46). The center of mass of the orbital scroll is thus moved towards the eccentric bearing to reduce torquing of the scroll as it orbits. In a further embodiment, the apparatus includes n orbital scroll (42) having two portions, a supporting portion (44) surrounding an eccentric bearing (34) having a lower coefficient of thermal expansion than that of scroll portion (46), to reduce thermal expansion of the supporting portion, reducing misalignment of the orbital scroll ...

TWIN SCREW COMPRESSOR

Double-screw compressor for supplying gas, such as air, to a gas consumer, which screw compressor comprises two interacting rotors for compressing the gas and also a toothed gearing. The toothed gearing comprises a gearing housing with two opposite end walls made of a first material. Two gearwheels made of a second material which has a thermal expansion coefficient which differs from the thermal expansion coefficient of the first material are mounted in the end walls. In order to reduce the effect of the temperature on the backlash, both gearwheels are designed with one and the same pressure angle which is smaller than 15°. A method for reducing the effect of the temperature on the functioning of a screw compressor is also described.

Trockenverdichtende Spindelpumpe

The invention relates to a dry-compressing spindle pump as a dual-shaft positive displacement unit for transporting and compressing gases, comprising a pair of spindle rotors in a compression chamber. The aim of the invention is to construct said pump in a simpler, more cost-effective manner. To achieve this, the pair of spindle rotors consists of a material with a lower thermal expansion coefficient than the material of the pump housing that directly encompasses said pair and the pump housing is configured in such a way that its thermal inertia is adapted to the thermal inertia of the pair of spindle rotors, by a temporal delay to and a restriction of the heat emission. The heat emission for the pump housing is restricted using either the stream of cooling air by means of suitable longitudinal and transversal ribs and/or sheet metal sheathing or screening, or the thermal behaviour of said pump housing is adjusted by determining and distributing the mass for the housing. In addition, the ...

Improvements in or relating to rotary-displacement machines

... 987,681. Rotary pumps and motors. PLESSEY CO. Ltd. July 14, 1961 [Aug. 2, 1960], No. 26692/60. Heading F1F. A rotary displacement pump (or motor) has at least one rotor 2 (e.g. two meshing gears) and the pressure-loaded bearing housings 8 are of a material e.g. high-expansion aluminium alloy, which is of higher coefficient of thermal expansion than that of the pump housing e.g. low-expansion aluminium allow, such that, when the housings 8 are held fixed centrally of their length by friction resulting from radial load, the sealing surfaces of side plates 6, 7 remain in contact with the rotor 2 at all variations of temperature within the operating range. There are bronze bearing sleeves 13 and filler sleeves 14, which are of the lowexpansion 36 % nickel-steel alloy known as "Invar" (Registered Trade Mark) so that the total radial expansion of the elements 8, 13, 14 equals that of the rotor 2. The housings 8 are loaded by pump delivery pressure supplied between O-ring seals 10, 11. 1.

INTERNAL COMBUSTION ENGINE HAS AUTOINFLAMMATION WITH STRATIFICATION OF TEMPERATURE OF THE MIXTURE CARBURIZES AND METHOD FOR CARRYING OUT SUCH A MIXTURE

La présente invention concerne un moteur à combustion interne de type à autoinflammation comportant au moins un cylindre (10) avec un corps de cylindre (12), une culasse (38), un piston (14) portant un bol (18) à l'intérieur duquel s'érige un téton (22), et une chambre de combustion (40) délimitée par des parois de chambre constituées par la portion surfacique (42) de la culasse en regard du piston, la surface périphérique interne (44) du cylindre, la face supérieure (20) du piston et les parois de bol (24, 26, 28, 30, 32, 34, 36, 62).Selon l'invention, au moins une partie d'au moins une paroi de chambre (20, 24, 26, 28, 30, 32, 34, 36, 42, 44, 62) est constituée d'une matière avec des caractéristiques thermiques différentes de la matière d'une autre paroi. The present invention relates to an internal combustion engine of the self-ignition type having at least one cylinder (10) with a cylinder body (12), a cylinder head (38), a piston (14) carrying a bowl (18) to the inside which is a nipple (22), and a combustion chamber (40) delimited by chamber walls formed by the surface portion (42) of the cylinder head facing the piston, the inner peripheral surface (44) of the cylinder , the upper face (20) of the piston and the bowl walls (24, 26, 28, 30, 32, 34, 36, 62) .In accordance with the invention, at least a portion of at least one chamber wall ( 20, 24, 26, 28, 30, 32, 34, 36, 42, 44, 62) consists of a material with different thermal characteristics of the material of another wall.

FLUID COMPRESSOR

A fluid compressor comprising a helical blade type compression mechanism that includes a cylinder (5), a roller (11) arranged inside the cylinder and a helical blade (15) interposed between the roller and the cylinder. The blade, the roller and the cylinder are formed of materials whose coefficients of thermal expansion satisfy relationships: Blade > Roller > Cylinder. According to this invention, pressure release can be easily performed in the case where the liquid flows back or under a low-temperature condition as at the time of actuation. In addition, the compression performance can be improved under a high-temperature condition during operation.

Scroll fluid machine

A scroll fluid machine comprises an orbiting scroll and a stationary scroll. The orbiting scroll comprises an orbiting end plate having an orbiting wrap, and the stationary scroll comprises a stationary end plate having a stationary wrap. The orbiting scroll is supported to turn on an eccentric shaft portion of a drive shaft. The orbiting wrap engages with the stationary wrap to form a sealed chamber therebetween. A bearing tube is detachably disposed in a housing. The drive shaft is supported to turn in the bearing tube.

Gear Pump Having Optimal Axial Play

The invention relates to a pump, in particular an oil pump, for internal combustion engines, comprising a pump case, with the pump case comprising a pump lid and a pump flange, with at least one toothed wheelset being arranged between the pump lid and the pump flange and the pump lid and the pump flange being connected via at least one distance element.

OIL PUMP

PROBLEM TO BE SOLVED: To improve wear resistance and seizure resistance of an inner rotor and an outer rotor and to reduce the radial clearance between the inner rotor and the outer rotor in connection with oil temperature rise. SOLUTION: The outer rotor 3 is composed of sintered alloy composed of a structure of Fe and austenite stainless steel. The inner rotor 5 is composed of austenite stainless steel. Austenite stainless steel excellent in wear resistance and seizure resistance can be used for the outer rotor 3 and the inner rotor 5. The inner rotor 5 is composed of a material having higher expansioncoefficient than the material of the outer rotor 3, and thereby the radial clearance between both rotors reduces as oil temperature rises due to difference of expansion coefficient of both rotors 3, 5 to maintain good delivery flow rate performance. COPYRIGHT: (C)2005,JPO&NCIPI ...

Verfahren zum Herstellen von Kohlenstoffkolben und Kohlenstoffkolben

Verfahren zum Herstellen von Kohlenstoffkolben umfassend die folgenden Schritte: – Herstellen eines Verbundmaterials, wobei das Material bezüglich der Wärmedehnung und/oder Wärmeleitung mit einer Anisotropie von 5 bis 50% durch ein anisotropes Formgebungsverfahren eingestellt wird und – Herausschneiden oder spanendes Bearbeiten eines Kolbenrohlings, derart, dass der Wärmeausdehnungskoeffizient in radialer Richtung höher ist als in axialer Richtung.

Pump assembly

A pump assembly has a pump assembly casing 25 that includes gear pump(s) 31 which comprise a pair of meshing gears 31a, 31b. Each gear has a coaxial bearing shaft 41 which extends from each side of the gear and is journaled within a pair of bearing blocks 39a, 39b. The shaft emerges from the bearing blocks at ends thereof distal from the gear to form a pair of sealing lands 43 and a pair of carbon face seals 45 is mounted to the pump assembly casing to form respective dynamic seals with the sealing lands. Each carbon face seal has a carbon ring 47 which forms a sealing land for dynamically sealing to the corresponding sealing land of the bearing shaft and has an annular carrier 49 to which the carbon ring is mounted by an interference fit. The interference fit extends over an axial distance which is more than 66% of the total axial length of the carbon ring. A fuel supply system and gas turbine engine that comprise the pump assembly are also claimed.

Engine housing assemblies with a reinforcement member

Internal combustion engine

ROTARY PUMP

Scroll type compressor apparatus with adjustable axial gap and bimetallic orbital scroll

COMPRESSOR

The compressor has two rotors (14, 16), which are rotatably mounted in a housing (10) by means of a shaft each, the rotors (14, 16) rotating without contact with the housing. The rotors (14, 16) consist of a powder-metallurgical Al-Si alloy, and the housing (10) consists essentially of aluminum.

COMPRESSOR

The compressor has two rotors (14, 16) which are each rotationally mounted by means of a shaft, in a housing (10). Said rotors (14, 16) rotate without touching the housing and consist of a powder-metallurgical Al-Si alloy, while the housing (10) consists essentially of aluminium.

Rotary piston engine

I.c. engine cylinder deformation limiter comprises stiffener with low thermal expansion coefficient between cylinder wall and liner

The deformation limiter consists of a cylindrical stiffener (4) made from carbon fibres running round its circumference or in a woven warp and weft, fitted between the inner surface (21) of an i.c. engine cylinder block wall (1) and the outer surface (31) of a cylinder liner (3). The stiffener has low thermal expansion and conductivity coefficients, is about 0.1 mm thick. It is fitted to the cylinder sleeve after cooling the sleeve and heating the stiffener.

Sealed-type scroll compressor with relatively shifted scrolls based on thermal coefficient of expansion

In a sealed-type scroll compressor having a stationary scroll member and an orbiting scroll member, the stationary scroll member is fixed after rotating it in an orbiting direction of the orbiting scroll member by a predetermined angle from a phase angle position where a possible orbiting radius between both scroll members is made maximum at the temperature before driving the scroll compressor.

Scroll pump with controlled axial thermal expansion

Vacuum pumping apparatus includes a pump frame, a stationary scroll element secured to the pump frame, the stationary scroll element including a stationary scroll blade, an orbiting scroll element including an orbiting scroll blade intermeshed with the stationary scroll blade, a motor secured to the pump frame, and a crankshaft coupled between the motor and the orbiting scroll element for producing orbiting movement of the orbiting scroll blade relative to the stationary scroll blade when the motor is energized. The crankshaft includes a first component having a first coefficient of thermal expansion and a second component having a second coefficient of thermal expansion.

Hybrid pump bearing for contamination resistance

A bearing carrier is provided. The bearing carrier including: a bearing body of a first material having a shaft-receiving aperture and a bridge land with a finger cut to channel fluid pressurized by intermeshing of gears rotatably supported by the bearing carrier into an outlet defined by a housing enveloping the bearing carrier, wherein the bearing body includes a bearing face configured to be in a facing spaced relationship with the gears, wherein the bearing face includes a second material integral with the first material, wherein at least one of the first material and the second material define a portion of the bearing face of the bearing body extending about the shaft-receiving aperture, the portion of the bearing face excluding the bridgeland.

Thermoelastic device with preselected resistivity, inertness and deposition characteristics

A thermoelastic device comprising an expansive element is disclosed. The expansive element is formed from a material, which is preselected on the basis that it has one or more of the following properties: a resistivity between 0.1 μΩm and 10.0 μΩm; chemically inert in air; chemically inert in the chosen ink; and depositable by CVD, sputtering or other thin film deposition technique.

RECIPROCATING COMPRESSOR

SPIRALPUMPE MIT GESTEUERTER AXIALER WÄRMEAUSDEHNUNG

Vakuumpumpenvorrichtung, die aufweist: einen Spiralsatz mit einem Einlass und einem Auslass, wobei der Spiralsatz ein feststehendes Spiralelement, das einen feststehenden Spiralflügel einschliesst, und ein kreisendes Spiralelement aufweist, das einen kreisenden Spiralflügel einschliesst, wobei der feststehende und der kreisende Spiralflügel unter Ausbildung von einer oder mehreren Zwischenflügeltaschen ineinandergreifen; einen Motor; und eine Kurbelwelle, die zwischen dem Motor und dem kreisenden Spiralelement wirkend gekoppelt ist, was eine kreisende Bewegung des kreisenden Spiralflügels relativ zu dem feststehenden Spiralflügel bewirkt, wenn der Motor mit Strom versorgt wird, wobei die Kurbelwelle eine erste Komponente eines ersten Materials aufweist, das starr mit einer zweiten Komponente eines zweiten Materials verbunden ist, wobei das erste und das zweite Material verschiedene Wärmeausdehnungskoeffizienten aufweisen.

Pump assembly

Pump assembly

COMPRESSOR

The compressor has two rotors (14, 16) which are each rotationally mounted by means of a shaft, in a housing (10). Said rotors (14, 16) rotate without touching the housing and consist of a powder-metallurgical Al-Si alloy, while the housing (10) consists essentially of aluminium.

PISTON AND CRANKCASE ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE

The invention relates to an assembly (100, 200) consisting of a piston (10, 110, 210) made of a steel-based material, and a crankcase (140, 240) made of an aluminum-based material, for an internal combustion engine. Said piston (10, 110, 210) comprises a piston head (11) and a piston skirt (16), said piston head (11) having a peripheral annular part (15) and in the region of said annular part (15), a peripheral cooling channel (23). The piston skirt (16) comprises piston bores (17) provided with hub bores (18), which are arranged over the hub connections (19) on the underside (11a) of the piston head (11). Said piston hubs (17) are interconnected over the running surfaces (21, 22). According to the invention, at least one bore (24a, 24b, 24c, 24d) which is closed towards the outside is arranged between a running surface (21, 22) and a hub bore (18) such that the at least one bore (24a, 24b, 24c, 24d) leads into the cooling channel (23), and that the cooling channel (23) and the at least ...

DRY-COMPRESSING SPINDLE PUMP

The invention relates to a dry-compressing spindle pump as a dual-shaft positive displacement unit for transporting and compressing gases, comprising a pair of spindle rotors in a compression chamber. The aim of the invention is to construct said pump in a simpler, more cost-effective manner. To achieve this, the pair of spindle rotors consists of a material with a lower thermal expansion coefficient than the material of the pump housing that directly encompasses said pair and the pump housing is configured in such a way that its thermal inertia is adapted to the thermal inertia of the pair of spindle rotors, by a temporal delay to and a restriction of the heat emission. The heat emission for the pump housing is restricted using either the stream of cooling air by means of suitable longitudinal and transversal ribs and/or sheet metal sheathing or screening, or the thermal behaviour of said pump housing is adjusted by determining and distributing the mass for the housing. In addition, the ...

SCROLL PUMP WITH CONTROLLED AXIAL THERMAL EXPANSION

Hybrid scroll wraps with expansion compensating recess

A scroll compressor is provided with a hybrid wrap having thicker 52 and thinner 54 wrap portions. The problem of uneven thermal expansion (broken line 36 Fig. 1) is addressed by providing a recess 56 in the thicker portion which communicates with the radially inner higher pressure and temperature compression chambers to communicate higher temperature refrigerant along the face of the thicker portion. The recess back wall 64 has thickness 70 of the same width as the thinner portion and blocks flow of this refrigerant to the radially outer end of the thicker portion which communicates with a lower pressure/temperature chamber. The recess compensates for uneven thermal expansion by bringing the thicker portion to a more even temperature across its width and compensate for axial expansion. The recess may be used on either the orbiting or non-orbiting scrolls.

ROTARY PUMP

Lightweight Internal Cobustion Engine With A Ferrous Reinforced Cylinder Block

Compressor With Thermally-Responsive Modulation System

A compressor may include a first scroll, a second scroll and a modulation system. The first scroll may include a first endplate and a first spiral wrap. The second scroll may include a second endplate and a second spiral wrap interleaved with the first spiral wrap and cooperating to form a plurality of working fluid pockets therebetween. The modulation system may include a temperature-responsive displacement member that actuates in response to a temperature within a space rising above a predetermined threshold. Actuation of the displacement member may be controlled to control a capacity of the compressor.

Method and system for processing an automotive engine block

A method and system for processing an engine block that includes a cylinder liner. The engine block having a first material with different coefficient of thermal expansion than a second material forming the cylinder liner. The method includes providing an insulating barrier to the cylinder liner, and quenching the engine block. The insulating barrier provides a lower cooling rate to the second material forming the cylinder liner than a cooling rate for the first material forming the engine block during the quenching.

Track pump with reinforcing ring

本发明涉及一种用于输送液体的泵(1)，其具有泵壳体(2)，泵壳体具有至少一个入口(3)和至少一个出口(4)、内周缘面(13)和几何轴线(23)，其中，在泵壳体(2)内部布置有偏心轮(5)，偏心轮(5)可绕几何轴线(23)相对于泵壳体(2)偏心地运动，其中，在泵壳体(2)的内周缘面(13)和偏心轮(5)的外表面(6)之间的泵间隙(11)中布置有可变形元件(7)，其中，利用可变形元件(7)和泵壳体(2)的内周缘面(13)形成从至少一个入口(3)到至少一个出口(4)的输送通道(8)，其中，此外，可变形元件(7)被偏心轮(5)的外表面(6)沿着输送通道(8)的至少一个区段(14)如此压在泵壳体(2)上，使得在输送通道(8)中构造出输送通道(8)的至少一个可移动的密封装置(9)和至少一个封闭的泵体积(10)，为了输送液体，密封装置和泵体积可通过偏心轮(5)的运动沿着输送通道(8)从入口(3)移动到出口(4)，其中，泵(1)具有在可变形元件(7)上的加强环(28)，其中，加强环(28)的第一热膨胀系数小于泵壳体(2)的第三热膨胀系数。

Internal combustion engine

本发明具备以围绕多个气缸(#1-#4)的方式形成的环状冷却水通路(16)。包括具有比气缸体(10)大的热膨胀系数，并将环状冷却水通路(16)划分成第一通路(22)和第二通路(24)的两个分隔构件(12、14)。第一通路(22)主要在沿着气缸体(10)的长度方向延伸的长度方向缸膛中心面的一侧延伸，第二通路(24)主要在其另一侧延伸。设有与第一通路(22)连通的入口和与第二通路(24)连通的出口。具备向第一通路(22)及第二通路(24)这双方开口的冷却水通路的气缸盖安装于气缸体(10)。气缸体(10)及分隔构件(12、14)形成为内燃机的预热时作用在两者间的应力不会达到分隔构件(12、14)的破坏应力。

Reciprocating compressor

The invention relates to a compressor comprising at least one oil-free operated piston (5), which together with a cylinder insert (33) in each case delimits a ring gap open over the shared longitudinal section, wherein said ring gap allows for the leakage flow of the compressed medium. The piston (5) is coupled through a piston rod (42) to a support element (38) that can be movably guided in the direction of the piston's longitudinal axis (6) and is connected to a drive unit. The piston rod (42) interacts with the piston (5) and the support (38) via convex support areas (43) on each face of the piston rod, which allow for relative motion of the support element (38) in relation to the piston (5) perpendicular to the longitudinal axis (6). Accordingly, the piston (5) can be guided parallel in the cylinder insert (33) without being influenced by the vibrations of the drive elements. The piston (5) comprises a metallic base part (61) and a jacket (62) made of a plastic material which embodies the running surface of the piston (5). The cylinder (5) is made of a material the coefficient of thermal expansion of which at least almost corresponds to a resulting coefficient of thermal expansion of the materials constituting the base part (61) and jacket (62). According to the invention, the compressor is suitable in particular for the oil-free compression of a gas.

Thermoelastic device comprising an expansive element formed from a preselected material

A thermoelastic device comprising an expansive element is disclosed. The expansive element is formed from a material, which is preselected by calculating a dimensionless constant for the material. The dimensionless constant is indicative of the potential effectiveness of the material in a particular application, such as a micro-electromechanical system.

Internal combustion engine

複数のシリンダ♯１−♯４を取り巻くように形成された環状冷却水通路１６を備える。シリンダブロック１０に比して大きな熱膨張係数を有し、環状冷却水通路１６を第１通路２２と第２通路２４とに区分する２つの仕切部材１２，１４を備える。第１通路２２は、シリンダブロック１０の長手方向に延びる長手方向ボアセンター面の一方側に主として延在し、第２通路２４は、その他方の側に主として延在する。第１通路２２に通じるインレットと、第２通路２４に通じるアウトレットを設ける。第１通路２２及び第２通路２４の双方に開口する冷却水通路を備えるシリンダヘッドを、シリンダブロック１０に装着する。シリンダブロック１０及び仕切部材１２，１４は、内燃機関の暖機時に両者間に作用する応力が、仕切部材１２，１４の破壊応力に到達しないように形成されている。 An annular cooling water passage 16 formed so as to surround the plurality of cylinders # 1- # 4 is provided. Two partition members 12 and 14 that have a larger thermal expansion coefficient than the cylinder block 10 and divide the annular cooling water passage 16 into a first passage 22 and a second passage 24 are provided. The first passage 22 mainly extends on one side of the longitudinal bore center surface extending in the longitudinal direction of the cylinder block 10, and the second passage 24 mainly extends on the other side. An inlet that leads to the first passage 22 and an outlet that leads to the second passage 24 are provided. A cylinder head having a cooling water passage that opens in both the first passage 22 and the second passage 24 is mounted on the cylinder block 10. The cylinder block 10 and the partition members 12 and 14 are formed so that the stress acting between them when the internal combustion engine is warmed up does not reach the breaking stress of the partition members 12 and 14.

Internal combustion engine

本发明具备以围绕多个气缸(#1-#4)的方式形成的环状冷却水通路(16)。包括具有比气缸体(10)大的热膨胀系数，并将环状冷却水通路(16)划分成第一通路(22)和第二通路(24)的两个分隔构件(12、14)。第一通路(22)主要在沿着气缸体(10)的长度方向延伸的长度方向缸膛中心面的一侧延伸，第二通路(24)主要在其另一侧延伸。设有与第一通路(22)连通的入口和与第二通路(24)连通的出口。具备向第一通路(22)及第二通路(24)这双方开口的冷却水通路的气缸盖安装于气缸体(10)。气缸体(10)及分隔构件(12、14)形成为内燃机的预热时作用在两者间的应力不会达到分隔构件(12、14)的破坏应力。

Thermoelastic actuator design

Internal combustion engine

A ringed coolant water passage 16 formed to surround a plurality of cylinders # 1 -# 4 is provided. Two partitioning members having a larger thermal expansion coefficient as compared to that of a cylinder block 10 , and separating the ringed coolant water passage 16 into first passage 22 and second passage 24 is provided. The first passage 22 exists mainly at one side of a longitudinal bore center plane which extends along the longitudinal direction of the cylinder block 10 while the second passage 24 exists mainly at the other side. An inlet which communicates with the first passage and an outlet which communicates with the second passage are provided. A cylinder head including a coolant water passage which opens to both of the first passage 22 and the second passage 24 is attached to the cylinder block 10 . The cylinder block 10 and the partitioning members 12, 14 are formed so that stress acting between both of them in a condition where the internal combustion engine is warmed up does not reach to a breaking stress of the partitioning members 12, 14.

Shielding part, in particular heat shield

Abschirmteil, insbesondere Hitzeschild, mit mindestens einem Schirmteil (10), das mittels Festlegemitteln (12) an Fahrzeug- oder Maschinenteilen festlegbar ist, wobei das Schirmteil (10) in einer Längsrichtung ausgerichtet und mit mindestens einem Kompensationsteil (14, 16) versehen ist, das temperaturbedingte, unterschiedliche Materialausdehnungen ausgleicht, wobei das jeweilige Kompensationsteil (14, 16) aus einer Einformung im zuordenbaren Schirmteil (10) besteht, wobei die jeweilige Einformung als Sicke des Schirmteils (10) ausgebildet ist, dadurch gekennzeichnet, dass das jeweilige Kompensationsteil (14, 16) querverlaufend zur Längsrichtung des Schirmteils (10) über die gesamte Breite des Schirmteils (10) im Querschnitt konvex oder konkav verlaufend geführt ist. Shielding part, in particular heat shield, with at least one screen part (10) which can be fixed to vehicle or machine parts by means of fixing means (12), wherein the screen part (10) is aligned in a longitudinal direction and provided with at least one compensation part (14, 16), the respective compensating part (14, 16) consists of an indentation in the assignable screen part (10), the respective indentation being in the form of a bead of the screen part (10), characterized in that the respective compensation part (14 , 16) transverse to the longitudinal direction of the screen member (10) over the entire width of the screen member (10) is guided in cross-section convex or concave.

Recess on tip of hybrid scroll compressor wrap to compensate for uneven thermal expansion

A scroll compressor is provided with a hybrid having thicker wrap portions and thinner wrap portions. The problem of uneven thermal expansion is addressed by providing a recess in the thicker portion. The recess communicates with the inner higher pressure and higher temperature compression chambers to communicate the higher temperature refrigerant along the face of the thicker portion. The recess blocks flow of this refrigerant to the radially outer end of the thicker portion which communicates with a lower pressure/lower temperature chamber. The use of the recess compensates for uneven thermal expansion by bringing the thicker portion to a more even temperature across its width.

Internal combustion engine

Selecting a material for use as the expansive element

The invention relates to an ink jet print head comprising a plurality of nozzles adapted to eject drops of ink through an opening towards a surface to be printed. Each nozzle has a nozzle chamber adapted for receiving ink via a conduit. The nozzle chamber is defined by a floor portion, an upwardly extending peripheral floor sidewall and a roof portion having a depending peripheral roof sidewall. The floor and roof are arranged to at least partially overlap in a telescopic manner. Each nozzle also comprises an actuator arranged to move the roof portion upwardly and downwardly relative to said floor portion so as to eject ink drops toward a surface to be printed. The distance between the telescopically overlapped sidewalls is such that when the chamber is in use and ink is located within the chamber, surface tension provides for sealing of the space between the sidewalls so as to at least reduce leakage of ink through the space.

Oil pump

Rotor blade, for a wind turbine, is of a plastics material with fiber reinforcements of a different thermal expansion to alter the aerodynamic profile shape on a temperature change

Rotorblatt für eine Windenergieanlage aus einem ersten Material aus Kunststoff und einem zweiten Material, das eine von dem ersten Material verschiedene Wärmeausdehnung besitzt, dadurch gekennzeichnet, daß das zweite Material derart mit dem ersten Material in dem Rotorblatt zusammenwirkt, daß bei einer Änderung der Temperatur der anströmenden Luft das Rotorblatt seine aerodynamische Profilform oder Torsion ändert.

For handling the method and system of automobile engine cylinder-body

一种用于处理发动机缸体的方法和系统，其包括汽缸衬套。发动机缸体所具有的第一材料相较形成汽缸衬套的第二材料具有不同的热膨胀系数。该方法包括为汽缸衬套提供绝热屏障，并且对发动机缸体淬火。在淬火期间，与形成发动机缸体的第一材料的冷却速率相比，绝热屏障为形成汽缸衬套的第二材料提供较低的冷却速率。

Gear pump having optimal axial play

본 발명은 펌프 커버(2)와 펌프 플랜지(3)로 이뤄진 펌프 하우징을 포함하고, 펌프 커버(2)와 펌프 플랜지(3) 사이에 하나 이상의 기어 세트(4)가 배치되며, 펌프 커버(2)와 펌프 플랜지(3)는 하나 이상의 스페이서 요소(5)를 경유하여 연결되는 펌프, 특히 내연 엔진용 오일 펌프에 관한 것이다. 펌프, 커버, 플랜지, 하우징, 기어 세트, 스페이서 The invention comprises a pump housing consisting of a pump cover 2 and a pump flange 3, wherein at least one gear set 4 is arranged between the pump cover 2 and the pump flange 3, and the pump cover 2 ) And the pump flange 3 relate to a pump, in particular an oil pump for an internal combustion engine, connected via at least one spacer element 5. Pump, Cover, Flange, Housing, Gear Set, Spacer

Reciprocating Compressors

En kompressor med minst et tørt-løpende ført stempel (5) som med en sylinderinnsats (33) begrenser en ring-spalt som er åpen over det felles lengdeavsnltt, hvor ringspalten tillater en lekkasjestrømning av det komprimerte medium. Stempelet (5) er via en stempel-stang (42) sammenkoplet med en støttedel (38) som er ført forskyvbart i retning av dens lengdeakse (6) og som er for-bundet med en drivinnretning. Stempel-stangen (42) samvirker med stempelet (5) og støttedelen (32 via endesidige kom-plekse støtteflater (43) som tillater relativbevegelser av støttedelen (38) i forhold til stempelet (5) som forløper på tvers av lengdeaksen (6). Tilsvarende oppnås en parallellføring av stempelet (5) i sylinderinnsatsen (33) som er upåvirket av svingninger i drivdelene. Stempelet (5) har et metallisk hoved-legeme (61) og et av plastmateriale fremstilt mantellegeme (62) på hvilket stempelets (5) løpeflate er dannet. Sylinderen (5) er fremstilt av et mate-riale med en varmeutvidelseskoeffisient som tilsvarer i det minste tilnærmet en resulterende varmeutvidelseskoeffisient for materialene i hovedlegemet (61) og mantellegemet (62). Kompressoren ifølge oppfinnelsen er særlig egnet for oljefri komprimering av en gass.

Closed vortex compressor and method for assembling same

本发明的封闭式涡旋压缩机，包括由相咬合的固 定涡旋件和旋转涡旋件等组成的压缩机构，通过用θ 工作台10将固定涡旋件4向负方向(旋转方向)(旋 转涡旋件5则相对地向正方向(反转方向))旋转θc， 可以使热膨胀后的两涡卷间的间隙处于最佳状态，还 可实现精度良好的装配。

Scroll fluid machine

Scroll compressor

Selecting a material for use as the expansive element

The invention concerns thermoelastic designs incorporating and expansive element formed from material selected in accordance a procedure involving the derivation of an indicator of the material's potential effectiveness for each application. (FIG. 1 to accompany the abstract).

Compressor with thermally-responsive modulation system

A compressor may include a first scroll, a second scroll and a modulation system. The first scroll may include a first endplate and a first spiral wrap. The second scroll may include a second endplate and a second spiral wrap interleaved with the first spiral wrap and cooperating to form a plurality of working fluid pockets therebetween. The modulation system may include a temperature-responsive displacement member that actuates in response to a temperature within a space rising above a predetermined threshold. Actuation of the displacement member may be controlled to control a capacity of the compressor.

Swivel scroll supporting mechanism for scroll compressor

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Compressor with aluminum housing and at least one aluminum rotor

The compressor has two rotors ( 14, 16 ), which are rotatably mounted in a housing ( 10 ) by means of a shaft each, the rotors ( 14, 16 ) rotating without contact with the housing. The rotors ( 14, 16 ) consist of a powder-metallurgical Al—Si alloy, and the housing ( 10 ) consists essentially of aluminum.

Compressor

The compressor has two rotors (14, 16) which are each rotationally mounted by means of a shaft, in a housing (10). Said rotors (14, 16) rotate without touching the housing and consist of a powder-metallurgical Al-Si alloy, while the housing (10) consists essentially of aluminium.

Compressor

压缩机，具有两个分别借助于一轴可旋转地支承在一壳体(10)内的转子(14、16)，它们与壳体不接触地旋转。转子(14、16)由粉末冶金的铝硅合金组成，壳体(10)基本上由铝组成。

Fluid compressor

본 발명은 유체압축기에 관한 것으로서, 나선형 블레이드식 압축기구부를 포함하는 유체압축기에 있어서, 실린더; 상기 실린더 내측에 배치된 롤러; 및 상기 롤러와 상기 실린더사이에 끼워진 나선형 블레이드를 포함하며, 상기 블레이드, 롤러 및 실린더는 블레이드 > 롤러 > 실린더의 관계식을 만족하는 열팽창계수를 갖는 재료로 형성되어 있어, 압력배출은 유체 역류 또는 작동시간에서의 저온조건하에서 케이스내에서 쉽게 실행되며, 작동동안 고온조건하에서 압축성능이 개선될 수 있는 것을 특징으로 한다. The present invention relates to a fluid compressor, the fluid compressor comprising a spiral blade type compression mechanism, comprising: a cylinder; A roller disposed inside the cylinder; And a spiral blade sandwiched between the roller and the cylinder, wherein the blade, roller and cylinder are formed of a material having a coefficient of thermal expansion that satisfies the relationship of blade> roller> cylinder, such that It is easily executed in the case under low temperature conditions, and the compressive performance can be improved under high temperature conditions during operation.

Twin-shaft pumps with thermal breaks

A twin-shaft pump comprising: a pumping chamber; two rotatable shafts each mounted on bearings is disclosed. Each of the two rotatable shafts comprises at least one rotor element, the rotor elements being within the pumping chamber and the two rotatable shafts extending beyond the pumping chamber to a support member. The support member comprises mounting means for mounting the bearings at a predetermined distance from each other, the predetermined distance defining a distance between the two shafts. A thermal break between the pumping chamber and the support member is provided for impeding thermal conductivity between the pumping chamber and the support member, such that the pumping chamber and support member can be maintained at different temperatures. The support member and the rotor elements are formed of different materials, a coefficient of thermal expansion of a material forming the support member being higher than a coefficient of thermal expansion of a material forming the rotor elements.

Differential expansion control assembly for a pump

A differential expansion control assembly is provided for a pump. The pump has a pump body with a base portion and cover portion of a first material with a first thermal expansion coefficient and a pumping mechanism of a second material with a second thermal expansion coefficient different from the first thermal expansion coefficient. The differential expansion control assembly includes at least one member disposed between the base portion and cover portion to negate a difference between the first thermal expansion coefficient and the second thermal expansion coefficient and maintain a relative controlled clearance between the cover portion and the pumping mechanism. The differential expansion control assembly also includes a seal disposed between the cover portion and base portion to allow for differential expansion of the pump body without leakage of fluid between the cover portion and base portion.

Pump housing

The invention relates to a pump housing (2) comprising a dual-wall casing (3) which enables a first fluid (4) to flow at least partially around a compression chamber (5) for compressing a second fluid (6), said compression being performed with at least two elongated rotors (7, 8). The dual-wall casing (3) comprises: (i) a first wall (10) which defines the volume of the compression chamber (5), and (ii) a second wall (11) which extends around the first wall (10) at a distance (12) from same such as to enable the first fluid (4) to flow therethrough. The pump housing (2) consists of two subassemblies (13, 14), namely a first subassembly (13) and a second subassembly (14), which are assembled along a sealing surface (15) that is essentially orthogonal to the longitudinal axes (70, 80) of the rotors (7, 8). Both the first subassembly (13) and the second subassembly (14) are characterised in that they consist of a rigid element (16) which is moulded from a first thermally-conductive material and which comprise two opposing faces, namely a first face (18) and a second face (19). According to the invention, the above-mentioned first wall (10), which is moulded with the rigid element (16), is disposed beyond the first face (18) such as to extend essentially orthogonally thereto, while the second wall (11) is also disposed beyond the first face (18) such as to extend essentially orthogonally thereto, but in parallel to a fourth face (21) of the first wall (10) without being joined to same. In addition, cut-outs (23) are recessed into the first face (18) such that each cut-out forms at least one housing for a first member (9) that is used to guide the rotation of one of the opposing ends (71, 72, 81, 82) of one of the rotors (7, 8).

Variable displacement lubricant vane pump

A variable displacement lubricant vane pump (10) is provided with a pump rotor (20) rotating around a rotor axis (21) and with a rotor body (24) provided with vane slits (25) wherein shiftable rotor vanes (26) are arranged. A shiftable control ring (30) is provided wherein the slidable vanes (26) are rotating, the control ring (30) being actuated to control the eccentricity of the control ring (30) with respect to the rotor axis (21). A metal pump housing (12) including two parallel sidewalls (16, 17) is provided which axially cover the rotor body (24), the rotor vanes (26) and the control ring (30). The control ring (30; 30') is provided with a control ring body (31; 31') made out of the same plastic material with a thermal expansion coefficient ap of 65% to 150% of the thermal expansion coefficient aM of the housing metal.

Micro-electromechanical actuator

A micro-electromechanical actuator includes a pair of elongate layers capable of being heated with an electrical current to thermally expand and to perform work. A pair of spacers separates the elongate layers from each other. The spacers are arranged at respective opposite ends of the elongate layers and are fast with the layers so that the actuator is deflected when one of the layers is heated.

Scroll type compressor appts. with adjustable axial gap and bimetallic orbital scroll

披露了一种用于流体位移的螺旋型装置。在一个实施例中，该装置(10)包括一调节机构(88)，它能在装置装配之后被调节来缩小螺旋件(14，42)间的一个轴向间隙并能补偿装置部件中的制造公差。在另一实施例中，该装置包括一具有两个部分(44，46)的轨道螺旋(42)，其中的一轴承部(44)围绕着一个其密度大于一螺旋部(46)的密度的偏心轴承(34)。轨道螺旋的质心因此便被朝着该偏心轴承移动，来减小螺旋做轨道运动时产生的螺旋力矩。在又一实施例中，该装置包括一具有两个部分的轨道螺旋(42)，其中的一支撑部(44)围绕一偏心轴承(34)，该偏心轴承(34)的热膨胀系数低于一螺旋部(46)的热膨胀系数，用于减小支撑部的热膨胀，从而减小轨道螺旋在偏心轴承上的错位。

Engine oil pump for use as e.g. engine oil exhaust pump for internal combustion engine of motor car, has pump housing and bearing for supporting pump housing that are connected to each other in floating manner

The pump has a pump housing (10) and a bearing (11-14) for supporting pump housing and has thermal expansion coefficient that is different from thermal expansion coefficient of pump housing. The pump housing and bearing are connected to each other in floating manner. The pump housing is connected with bearing by plug connection. The pump housing has a case for generating pressure gradient, working chambers (17-19) and a partition (15,16) arranged between working chambers. The pump housing is designed as plastic component, and bearing is designed as aluminum component.

Thermoelastic device comprising an expansive element formed from a preselected material

A thermoelastic device comprising an expansive element is disclosed. The expansive element is formed from a material, which is preselected by calculating a dimensionless constant for the material. The dimensionless constant is indicative of the potential effectiveness of the material in a particular application, such as a micro-electromechanical system.

"pompa a pistoni rotanti"

Vorrichtung zur Erzeugung mechanischer Energie aus der Längenänderung von Körpern bei Temperaturänderung

Die Erfindung betrifft eine Vorrichtung zur Umwandlung von Warmeenergie, insbesondere mit relativ niedriger Temperatur, in mechanische Drehbewegung oder davon ausgehend in elektrische Energie. Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, die einen hoheren Energieumsatz und besseren Wirkungsgrad besitzt, indem der Dehnungsweg vergroßert wird und diese Bewegung unmittelbar eine Drehbewegung erzeugt. Weiterhin soll die Warme aus der Umwelt oder Abwarme effektiver zur Warmedehnung von Elemente genutzt werden. Gelöst wird diese Aufgabe durch die Merkmale des Anspruchs 1. Danach ist bei einem um zwei drehbare Umlenkrollen gefuhrten Endlosband, bei dem je ein Bandtrum erwarmt und gekuhlt wird, das Endlosband zur verstarkten Langsänderung in sich raumlich verformt und besteht aus mindestens zwei Schichten von Material unterschiedlicher Warmeausdehnung oder ubereinander verformten Strangen. In den Faltungen konnen Kammern mit großer Langenanderung bei Temperaturanderung angeordnet sein, bzw. das Endlosband besteht aus diesen Kammern.

Pompa a pistoni rotanti.

Zahnradpumpe mit optimiertem axialspiel

Verdichter

Hybrid pump bearing for contamination resistance

Verdrängermaschine nach dem Spiralprinzip

Die Erfindung betrifft eine Verdrängermaschine nach dem Spiralprinzip, insbesondere Scrollverdichter, mit einem Gehäuse (100), das ein Verdichtergehäuse (20) und ein Antriebsgehäuse (10) umfasst, wobei im Verdichtergehäuse (20) eine orbitierende Verdrängerspirale (21) und eine Gegenspirale (25) angeordnet sind, die so ineinander greifen, dass zwischen der Verdrängerspirale (21) und der Gegenspirale (25) variable Verdichtungskammern (23) gebildet sind, um ein durch einen Arbeitsmittelkreislauf strömendes Arbeitsmittel aufzunehmen und zu verdichten, wobei im Antriebsgehäuse (10) eine Antriebswelle (12) angeordnet ist, die mit der Verdrängerspirale (21) antriebsverbunden ist, wobei zwischen dem Antriebsgehäuse (10) und dem Verdichtergehäuse (20) eine Lagerplatte (30) angeordnet ist, die ein Lager (32) für die Antriebswelle (12) trägt, und wobei zwischen der Lagerplatte (30) und der orbitierenden Verdrängerspirale (21) ein Antirotationsmechanismus vorgesehen ist. Die Erfindung zeichnet sich dadurch aus, dass die Lagerplatte (30) vollständig innerhalb des Gehäuses (100) angeordnet ist, wobei die Lagerplatte (30) und das Lager (31) aus Materialien gebildet sind, deren Wärmeausdehnungskoeffizient um höchstens 20%, insbesondere um höchstens 10%, insbesondere um höchstens 5%, voneinander abweicht.

Hubkolbenkompressor

Variable displacement lubricant vane pump

펌프 하우징

본 발명은 이중 벽의 케이싱(3)을 포함하는 펌프 하우징(2)에 관한 것으로서, 이중 벽은 제 1 유체(4)가 제 2 유체(6)를 압축하도록 적어도 부분적으로 압축 챔버(5)의 둘레로 유동할 수 있게 하고, 상기 압축은 적어도 2 개의 신장된 회전자(7,8)로 수행된다. 이중 벽의 케이싱(3)은: (i) 압축 챔버(5)의 체적을 형성하는 제 1 벽(10); 및, (ii) 제 1 유체(4)가 통과할 수 있도록 제 1 벽으로부터의 거리(12)에서 제 1 벽(10)의 둘레에 연장된 제 2 벽(11)을 포함한다. 펌프 하우징(2)은 2 개의 하위 조립체(13,14), 즉, 제 1 하위 조립체(13) 및 제 2 하위 조립체(14)로 이루어지는데, 이들은 회전자(7,8)의 길이 방향 축(70,80)에 실질적으로 직각인 실링 표면(15)을 따라서 조립된다. 제 1 하위 조립체(13) 및 제 2 하위 조립체(14)는 이들이 견고한 요소(16)로 이루어지는 것을 특징으로 하는데, 견고한 요소는 제 1 열적 전도 물질로 몰딩되고 2 개의 대향하는 면들, 즉, 제 1 면(18) 및 제 2 면(19)을 포함한다. 본 발명에 따라서, 견고한 요소(16)와 몰딩된 상기 언급된 제 1 벽(10)은 제 1 면(18)을 지나서 그에 실질적으로 직각으로 연장되도록 배치되는 반면에, 제 2 벽(11)은 제 1 면(18)을 지나서 그에 실질적으로 직각으로 연장되지만 제 1 벽(10)의 제 4 면에 평행하고 그에 접합되지 않고 배치된다. 또한, 절제부(23)는 제 1 면(18) 안으로 오목하게 됨으로써 각각의 절제부는 제 1 부재(9)를 위한 적어도 하나의 하우징을 형성하는데, 제 1 부재는 회전자(7,8)들중 하나의 반대편 단부(71,72,73,74)들의 하나의 회전을 안내하도록 이용된다.

Pump casing

回転ポンプ

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

具有含铁加强汽缸体的轻质内燃发动机

本发明的实施例提供一种内燃发动机(110)，其包括第一材料制造的具有多个汽缸(125)的汽缸体和第二材料制造的插入件(500)，所述第二材料具有比第一材料更大的刚性和更低的热膨胀系数且就地铸造到汽缸体(120)中，其中插入件(500)包括：用于汽缸体(120)的每一个汽缸(125)的栓接锚固件(502)，所述栓接锚固件具有适于被汽缸盖螺钉(131)接合以将汽缸盖(130)固定到汽缸体(120)的第一螺纹孔(503)和适于被帽螺钉(601)接合以用于将主轴承帽(600)固定到汽缸体(120)的第二螺纹孔(504)，和润滑通道(510)，连接到多个锚固件(502)。

真空泵裝置及其運轉方法

本發明提供一種下述的真空泵裝置及其運轉方法：能夠減少由製程氣體引起的副產物在泵室內的堆積，防止真空泵裝置的意外停止，而且能夠可靠地進行真空泵裝置的再起動。真空泵裝置具備：泵殼體(2)，該泵殼體在內部具有泵室(1)；泵轉子(5E)，該泵轉子配置在泵室(1)內；旋轉軸(7)，在該旋轉軸固定有泵轉子(5E)；軸承(17)，該軸承將旋轉軸(7)支承為能夠旋轉；側蓋(10A)，該側蓋與泵殼體(2)連接；加熱器(35)，該加熱器安裝於側蓋(10A)；以及加熱器控制部(40)，該加熱器控制部在泵轉子(5E)正在旋轉時使加熱器(35)間歇性地發熱，軸承(17)與側蓋(10A)連結。

Verdrängermaschine nach dem spiralprinzip

Verdrängermaschine nach dem Spiralprinzip, insbesondere Scrollverdichter, mit einem Gehäuse (100), das ein Verdichtergehäuse (20) und ein Antriebsgehäuse (10) umfasst, wobei im Verdichtergehäuse (20) eine orbitierende Verdrängerspirale (21) und eine Gegenspirale (25) angeordnet sind, die so ineinander greifen, dass zwischen der Verdrängerspirale (21) und der Gegenspirale (25) variable Verdichtungskammern (23) gebildet sind, um ein durch einen Arbeitsmittelkreislauf strömendes Arbeitsmittel aufzunehmen und zu verdichten, wobei im Antriebsgehäuse (10) eine Antriebswelle (12) angeordnet ist, die mit der Verdrängerspirale (21) antriebsverbunden ist, wobei zwischen dem Antriebsgehäuse (10) und dem Verdichtergehäuse (20) eine Lagerplatte (30) angeordnet ist, die ein Lager (32) für die Antriebswelle (12) trägt, und wobei zwischen der Lagerplatte (30) und der orbitierenden Verdrängerspirale (21) ein Antirotationsmechanismus vorgesehen ist. Die Lagerplatte (30) ist vollständig innerhalb des Gehäuses (100) angeordnet ist, wobei die Lagerplatte (30) und das Lager (32) aus Materialien gebildet sind, deren Wärmeausdehnungskoeffizient um höchstens 20%, insbesondere um höchstens 10%, insbesondere um höchstens 5%, voneinander abweicht.

涡旋式压缩机

本实用新型公开一种涡旋式压缩机。在所述涡旋式压缩机中，在制冷剂吸入管和高低压分离板之间设置有吸入引导件，吸入引导件可以紧固于非回旋涡旋盘或插入到从非回旋涡旋盘延伸的吸入引导凸部的内部。由此，吸入制冷剂的一部分在流动到高低压分离板侧之前，因吸入引导件而事先被吸入到压缩室，从而抑制吸入制冷剂与高低压分离板接触，另一方面，吸入制冷剂的另一部分不会立即被吸入到压缩室，而是向驱动电机侧移动并冷却驱动电机，由此能够提高压缩机效率并且扩大压缩机的运转范围。

Vacuum pump apparatus and method of operating the same

A vacuum pump that can reduce deposition of by-product in a pump chamber caused by a process gas, can prevent an unintended stop of a vacuum pump apparatus, and can ensure restarting of the vacuum pump apparatus is disclosed. The vacuum pump apparatus includes: a pump casing (2) having a pump chamber (1) therein; a pump rotor (5A-E) arranged in the pump chamber; a rotation shaft (7) to which the pump rotor is secured; a bearing (17, 18) that rotatably supports the rotation shaft; a side cover (10A, 10B) coupled to the pump casing; a heater (35) attached to the side cover (10A); and a heater controller (40) configured to instruct the heater to generate heat intermittently when the pump rotor is rotating. The bearing (18) is coupled to the side cover (10A).

Vane pump

A vane pump includes a casing, a rotor, vanes, a motor, and a fixed member. The casing defines a pump chamber therein. The rotor is disposed in the casing and configured to eccentrically rotate relative to the casing. The vanes are configured to rotate together with the rotor to slidably move on an inner surface of the casing. The motor is configured to rotate the rotor. Both the motor and the casing are fixed to the fixed member. The casing has an outer side wall surface and a flange. The flange protrudes outward from the outer side wall surface at an intermediate position between both ends of the pump chamber in a rotational axis direction of the rotor. The flange is fixed to the fixed member at a plurality of positions. The fixed member has a linear expansion coefficient that is different from that of the casing.

真空泵装置及其运转方法

本发明提供一种下述的真空泵装置及其运转方法：能够减少由工艺气体引起的副产物在泵室内的堆积，防止真空泵装置的意外停止，而且能够可靠地进行真空泵装置的再起动。真空泵装置具备：泵壳体(2)，该泵壳体在内部具有泵室(1)；泵转子(5E)，该泵转子配置在泵室(1)内；旋转轴(7)，在该旋转轴固定有泵转子(5E)；轴承(17)，该轴承将旋转轴(7)支承为能够旋转；侧盖(10A)，该侧盖与泵壳体(2)连接；加热器(35)，该加热器安装于侧盖(10A)；以及加热器控制部(40)，该加热器控制部在泵转子(5E)正在旋转时使加热器(35)间歇性地发热，轴承(17)与侧盖(10A)连结。

트윈 스크루 컴프레서

본 발명은 공기와 같은 기체를 기체 소모장치에 공급하는 트윈 스크루 컴프레서에 관한 것으로서, 상기 트윈 스크루 컴프레서는 기체를 압축하는 2개의 상호작용하는 회전자 및 치열식 기어장치를 포함한다. 치열식 기어장치는 제1 소재로 제조된 2개의 대향하는 단부벽을 구비한 기어장치 하우징을 포함한다. 제1 소재의 열팽창계수와 상이한 열팽창계수를 갖는 제2 소재로 제조된 2개의 기어휠이 단부벽 내에 장착된다. 백래시 상에 온도가 미치는 영향을 감소시키기 위하여, 기어휠 양자 모두는 15°이하의 압력각을 갖는 구조로 된다. 또한, 스크루 컴프레서가 기능할 때 온도의 영향을 감소시키는 방법이 기재되어 있다.

Twin screw compressor

Double-screw compressor for supplying gas, such as air, to a gas consumer, which screw compressor comprises two interacting rotors for compressing the gas and also a toothed gearing. The toothed gearing comprises a gearing housing with two opposite end walls made of a first material. Two gearwheels made of a second material which has a thermal expansion coefficient which differs from the thermal expansion coefficient of the first material are mounted in the end walls. In order to reduce the effect of the temperature on the backlash, both gearwheels are designed with one and the same pressure angle which is smaller than 15°. A method for reducing the effect of the temperature on the functioning of a screw compressor is also described.

전동 압축기

전동 압축기는, 압축 기구와, 전동 모터와, 인버터와, 하우징과, 하우징에 부착되어, 하우징과의 사이에 인버터를 수용하는 커버를 구비한다. 커버는, 금속제의 골격부 및 골격부의 표면을 둘러싸듯이 골격부를 덮는 수지부로 구성되어 있다. 골격부는, 판 형상부, 및, 판 형상부의 외주연으로부터 하우징을 향하여 연재하는 주벽부를 갖는다. 주벽부는, 판 형상부측과는 반대측의 단부에, 판 형상부의 두께 방향으로 패이는 오목부 및 판 형상부의 두께 방향으로 돌출하는 볼록부의 적어도 한쪽을 포함하는 요철을 갖는다. 상기 요철은, 수지부와 걸어 맞춤 되어있다.

电动压缩机

一种电动压缩机，具备压缩机构、电动马达、逆变器、壳体以及罩，该罩安装于壳体，且在其与壳体之间收容逆变器。罩由金属制的构架部以及以包围构架部的表面的方式覆盖构架部的树脂部构成。构架部具有板状部以及从板状部的外周缘朝向壳体延伸的周壁部。周壁部在与板状部侧相反的一侧的端部具有凹凸，该凹凸包括沿板状部的厚度方向凹下的凹部和沿板状部的厚度方向突出的凸部中的至少一方。上述凹凸与树脂部卡合。

Vane pump

A vane pump includes a casing, a rotor, vanes, a motor, and a fixed member. The casing defines a pump chamber therein. The rotor is disposed in the casing and configured to eccentrically rotate relative to the casing. The vanes are configured to rotate together with the rotor to slidably move on an inner surface of the casing. The motor is configured to rotate the rotor. Both the motor and the casing are fixed to the fixed member. The casing has an outer side wall surface and a flange. The flange protrudes outward from the outer side wall surface at an intermediate position between both ends of the pump chamber in a rotational axis direction of the rotor. The flange is fixed to the fixed member at a plurality of positions. The fixed member has a linear expansion coefficient that is different from that of the casing.

Draaizuigerpomp.

双轴泵

公开了双轴泵，所述双轴泵包括：泵送室；两个可旋转轴，每个被安装在轴承上。两个可旋转轴中的每个包括至少一个转子元件，转子元件在泵送室内，并且两个可旋转轴延伸超出泵送室到支撑构件。支撑构件包括安装器件，用于将轴承安装在从彼此隔开的预定距离处，预定距离限定两个轴之间的距离。在泵送室与支撑构件之间提供热中断，用于阻碍泵送室与支撑构件之间的热传导，使得泵送室和支撑构件可维持在不同的温度下。支撑构件和转子元件由不同材料形成，形成支撑构件的材料的热膨胀系数比形成转子元件的材料的热膨胀系数更高。

Twin-shaft pumps

雙軸幫浦

本發明揭示一種雙軸幫浦，其包括：一泵抽腔室；兩個可旋轉軸，其等各安裝於軸承上。該兩個可旋轉軸之各者包括至少一個轉子元件，該等轉子元件在該泵抽腔室內且該兩個可旋轉軸延伸超出該泵抽腔室至一支撐部件。該支撐部件包括用於將該等軸承安裝為彼此相距一預定距離之安裝構件，該預定距離界定該兩個軸之間的一距離。提供該泵抽腔室與該支撐部件之間之一隔熱件以用於阻礙該泵抽腔室與該支撐部件之間的導熱性，使得該泵抽腔室及支撐部件可維持於不同溫度。該支撐部件及該等轉子元件由不同材料形成，形成該支撐部件之一材料之一熱膨脹係數高於形成該等轉子元件之一材料之一熱膨脹係數。

双轴泵

公开了双轴泵，所述双轴泵包括：泵送室；两个可旋转轴，每个被安装在轴承上。两个可旋转轴中的每个包括至少一个转子元件，转子元件在泵送室内，并且两个可旋转轴延伸超出泵送室到支撑构件。支撑构件包括安装器件，用于将轴承安装在从彼此隔开的预定距离处，预定距离限定两个轴之间的距离。在泵送室与支撑构件之间提供热中断，用于阻碍泵送室与支撑构件之间的热传导，使得泵送室和支撑构件可维持在不同的温度下。支撑构件和转子元件由不同材料形成，形成支撑构件的材料的热膨胀系数比形成转子元件的材料的热膨胀系数更高。

트윈-샤프트 펌프

펌핑 챔버; 베어링 상에 각각 장착되는 두 개의 회전 가능한 샤프트를 포함하는 트윈-샤프트 펌프가 개시된다. 두 개의 회전 가능한 샤프트의 각각은 적어도 하나의 회전자 요소를 포함하고, 회전자 요소는 펌핑 챔버 내에 위치하며, 두 개의 회전 가능한 샤프트는 펌핑 챔버를 넘어서 지지 부재까지 연장된다. 지지 부재는 베어링을 서로 미리결정된 거리에 장착하기 위한 장착 수단을 포함하며, 상기 미리 결정된 거리는 두 개의 샤프트 사이의 거리를 규정한다. 펌핑 챔버와 지지 부재 사이의 열 전도를 저지하기 위해 펌핑 챔버와 지지 부재 사이에 열 브레이크가 제공되며, 따라서 펌핑 챔버와 지지 부재가 상이한 온도로 유지될 수 있다. 지지 부재와 회전자 요소는 상이한 재료로 형성되며, 지지 부재를 형성하는 재료의 열팽창 계수는 회전자 요소를 형성하는 재료의 열팽창 계수보다 높다.

ツインシャフトポンプ

Twin-shaft pumps

A twin-shaft pump comprising: a pumping chamber; two rotatable shafts each mounted on bearings is disclosed. Each of the two rotatable shafts comprises at least one rotor element, the rotor elements being within the pumping chamber and the two rotatable shafts extending beyond the pumping chamber to a support member. The support member comprises mounting means for mounting the bearings at a predetermined distance from each other, the predetermined distance defining a distance between the two shafts. A thermal break between the pumping chamber and the support member is provided for impeding thermal conductivity between the pumping chamber and the support member, such that the pumping chamber and support member can be maintained at different temperatures. The support member and the rotor elements are formed of different materials, a coefficient of thermal expansion of a material forming the support member being higher than a coefficient of thermal expansion of a material forming the rotor elements.

Twin-shaft pumps

A twin-shaft pump comprising: a pumping chamber; two rotatable shafts each mounted on bearings is disclosed. Each of the two rotatable shafts comprises at least one rotor element, the rotor elements being within the pumping chamber and the two rotatable shafts extending beyond the pumping chamber to a support member. The support member comprises mounting means for mounting the bearings at a predetermined distance from each other, the predetermined distance defining a distance between the two shafts. A thermal break between the pumping chamber and the support member is provided for impeding thermal conductivity between the pumping chamber and the support member, such that the pumping chamber and support member can be maintained at different temperatures. The support member and the rotor elements are formed of different materials, a coefficient of thermal expansion of a material forming the support member being higher than a coefficient of thermal expansion of a material forming the rotor elements.

Anordnung aus einem kolben und einem kurbelgehäuse für einen verbrennungsmotor

Die vorliegende Erfindung betrifft eine Anordnung (100, 200) aus einem Kolben (10, 110, 210) aus einem Werkstoff auf der Basis von Stahl und einem Kurbelgehäuse (140, 240) aus einem Werkstoff auf der Basis von Aluminium für einen Verbrennungsmotor, wobei der Kolben (10, 110, 210) einen Kolbenkopf (11) und einen Kolbenschaft (16) aufweist, wobei der Kolbenkopf (11) eine umlaufende Ringpartie (15) sowie im Bereich der Ringpartie (15) einen umlaufenden Kühlkanal (23) aufweist, wobei der Kolbenschaft (16) mit Nabenbohrungen (18) versehene Kolbennaben (17) aufweist, die über Nabenanbindungen (19) an der Unterseite (11a) des Kolbenkopfes (11) angeordnet sind, wobei die Kolbennaben (17) über Laufflächen (21, 22) miteinander verbunden sind. Erfindungsgemäß ist vorgesehen, dass mindestens eine nach außen verschlossene Bohrung (24a, 24b, 24c, 24d) vorgesehen ist, die zwischen einer Lauffläche (21, 22) und einer Nabenbohrung (18) angeordnet ist, dass die mindestens eine Bohrung (24a, 24b, 24c, 24d) in den Kühlkanal (23) mündet, und dass der Kühlkanal (23) und die mindestens eine Bohrung (24a, 24b, 24c, 24d) ein Kühlmittel (127, 227) in Form eines niedrig schmelzenden Metalls oder einer niedrig schmelzenden Metalllegierung enthalten.