Abstract: A lubricating arrangement for rotary device having an internal rotating member. The arrangement comprising a sleeve put on rotating member; at least one inlet in sleeve, being perpendicular to rotating member, and having one end adjacent rotating member and the other end open to reservoir; at least one outlet in sleeve, being perpendicular to rotating member, and having one end adjacent rotating member and the other end open to reservoir; and a plurality of auxiliary outlets in sleeve and each having one end adjacent rotating member and the other end open to reservoir. Preferably, each auxiliary outlet is at an angle about 0° to about 30° with respect to an axis perpendicular to rotating member.

Abstract: A linear compressor including a well-closed container filled with oil at its bottom; a compressive unit having a frame of a hollow inside the well-closed container to which a cylinder inserted, a piston inserted into the hollow of the cylinder, for linearly moving upward and downward by driving of a motor installed at the cylinder, and a discharge cover for covering one end of the cylinder; and an oil supply unit mounted at the lower side of the compressive unit, for pumping oil, wherein the oil supplied from the 01 oil supply unit to the compressive unit exists within the compressor unit in either case that the compressor is operated or stopped. Accordingly, even when the compressor is stopped, the oil remains in the compressive unit, so that when the compressor is re-started, the friction portion between the cylinder and the piston is lubricated, preventing abrasion of the friction portion. Thus, a reliability of the compressor is highly improved.

Abstract: In an oil-lubricated helium compressor unit, the adsorber can retain all of the oil that might be transferred from the compressor to the adsorber before the system shuts down. No oil is ever transferred or transferable to, for example, the expander in a GM type refrigeration system connected to the unit. The compressor itself will shut down because of a protective switch or seize for lack of oil before any oil carries outside the compressor unit. The unit and the connected refrigeration system can run for more than a selected design life before the compressor shuts down because the limit of oil in the adsorber has been reached. The adsorber can retain as much oil as might leave the compressor over the life of the system plus a safety margin of at least 25%. The adsorber need not be serviced or replaced for the life of the system.

Abstract: Refrigerant gas at a few psi higher than suction is supplied via labyrinth or annular groove type seals located between the suction side bearings and suction and between the suction side motor bearing and the motor. The buffer gas flow divides with part going to suction and part to a drain along the oil flowing from the bearings.

Abstract: A rotating type machine including a first moving member having a first surface and a second member having a second surface slidably interfacing with the first surface. The first and second surfaces have relative movement therebetween, and one of the first and second members is supported by the other member through the interface of their respective first and second surfaces. At least one of the first and second surfaces is provided with at least one recess therein. A liquid lubricant is provided between the first and second surfaces, and the lubricant is received in the recess. Relative to the surface in which the recess is provided, the recess has a maximum depth which ranges between about 0.00125 and 0.0060 inches, and a surface area which ranges between about 1.767×10−4 and 1.

Abstract: A closed reciprocating compressor includes a closed container forming an oil storage portion at a lower end thereof. A power generating device disposed in the container reciprocates a piston to compress air. An eccentric shaft is fixed to a lower end of the axle. A hollow oil supply device fixed to the eccentric shaft and extends downwardly therefrom at an oblique angle and into the oil for conducting oil upwardly due to centrifugal force generated in response to rotation of the axle. The oil supply device includes a radially outer portion and a radially inner portion, the radially outer portion being spaced farther from the axis than the radially inner portion. A lower first section of the radially outer portion forms a first acute angle with a horizontal plane and merges at its upper end with a second section of the radially outer portion which forms a second acute angle with the horizontal plane, wherein the second angle is larger than the first angle.

Abstract: A compressor assembly including a housing, a compression mechanism disposed in the housing, a sump located in the housing, the sump containing liquid lubricant, a conduit extending between the compression mechanism and the sump, the compression mechanism and the sump being in fluid communication through the conduit, lubricant in the sump being provided to the compression mechanism through the conduit, and a reservoir containing liquid lubricant located between the compression mechanism and the sump. The reservoir is in fluid communication with the conduit, and the compression mechanism and the reservoir are in fluid communication through the conduit. Lubricant in the reservoir is provided to the compression mechanism through the conduit.

Abstract: An oil pickup apparatus for a hermetic compressor connected with a crank shaft in order to pickup an oil filled up in a lower part of a shell, comprising an oil pickup tube having one end immersed in the oil and being connected with the crank shaft to be rotated together, and the oil pickup tube having an impeller portion integrally formed at the oil pickup tube in order to pickup the oil by a centrifugal force when the crank shaft rotates and supply the oil to an upper part of the compressor.

Abstract: A lubricant blend for use on a wire exposed to an HFC refrigerant. The lubricant blend includes an organic phase and an aqueous phase. The organic phase includes a lubricant which has a defined solubility in the HFC refrigerant and a lubricity suitable for application to the wire. The organic phase also includes a solvent in which the lubricant is soluble and, optionally, a hydrophobic surfactant. The aqueous phase includes a surfactant which forms an emulsion between the organic phase and the aqueous phase, which has a defined solubility in a non-CFC containing refrigerant. A magnetic wire lubricant, method of making the lubricant blend, and compressor using the lubricant blend are also described.

Abstract: A lubricant blend for use on a wire exposed to an HFC refrigerant. The lubricant blend includes an organic phase and an aqueous phase. The organic phase includes a lubricant which has a defined solubility in the HFC refrigerant and a lubricity suitable for application to the wire. The organic phase also includes a solvent in which the lubricant is soluble and, optionally, a hydrophobic surfactant. The aqueous phase includes a surfactant which forms an emulsion between the organic phase and the aqueous phase, which has a defined solubility in a non-CFC containing refrigerant. A magnetic wire lubricant, method of making the lubricant blend, and compressor using the lubricant blend are also described.

Abstract: An opening and closing system for an oil path of a linear compressor that facilitates smooth oil supply during the operation of the compressor and has the oil which has been supplied to the compressor partly remained therein when suspending the operation of the compressor for smooth lubrication when re-operating the compressor includes a hermetic vessel in which oil is filled in a bottom part thereof, a frame disposed in the hermetic vessel and communicating with a first oil groove and a second oil groove, a cylinder inserted into a through hole formed in a predetermined portion of the frame, a piston linearly reciprocating by the driving of a motor by being inserted into the cylinder, the second oil groove being formed on a portion of an outer circumferential surface of the piston, an exhaust cover coupled to one side of the cylinder, an oil supplier disposed at the frame for pumping out oil and communicating with the first oil groove through an oil inflow path, and a switching means formed between the first

Abstract: In an oil-lubricated helium compressor unit, the adsorber can retain all of the oil that might be transferred from the compressor to the adsorber before the system shuts down. No oil is ever transferred or transferable to, for example, the expander in a GM type refrigeration system connected to the unit. The compressor itself will shut down because of a protective switch or seize for lack of oil before any oil carries outside the compressor unit. The unit and the connected refrigeration system can run for more than a selected design life before the compressor shuts down because the limit of oil in the adsorber has been reached. The adsorber can retain as much oil as might leave the compressor over the life of the system plus a safety margin of at least 25%. The adsorber need not be serviced or replaced for the life of the system.

Abstract: A hermetic compressor assembly includes a compressor housing having a quantity of liquid lubricant therein. A compressor mechanism is provided within the compressor housing and a drive shaft is selectively rotatable and operably connected to the compressor mechanism. A liquid lubricant displacement element is engaged to the drive shaft and a support member is attached to the compressor housing. A pivotable magnetic member is provided between the liquid lubricant displacement element and the support member and includes a suction port provided therein. The liquid lubricant displacement element is in fluid communication with the quantity of liquid lubricant through the suction port in the magnetic member. At least a portion of any ferrous particles contained in the liquid lubricant are attracted to and retained by the magnetic member as the liquid lubricant is passed through the suction port of the magnetic member.

Abstract: A hermetically sealed motor compressor comprising a housing enclosing a motor stator and rotor. A vertically oriented crankshaft is connected at one end to the rotor and has an offset crankshaft journal at its other end. An oil passage is provided in the journal and an oil pick-up tube has a first straight end projecting into an oil sump. The second straight end portion is axially aligned with the rotation axis of the crankshaft. A helically twisted insert is provided in the second straight end portion and the first and second portions are connected by an S-shaped intermediate portion.

Abstract: An oil supply apparatus for a hermetic compressor includes: a crankshaft coupled with a motor so as to revolve together and having an oil flow path inside, a sleeve connected to a lower part of the crankshaft so as to revolve together with the crankshaft in one body, a sucking member arranged to maintain a uniform interval with an inner circumference face of the sleeve so as to carry out a suction of an oil, and a support means for supporting the sucking member to slide, the support means connected between the sleeve and sucking member so as to maintain a stationary state. The sucking member is supported so as not to revolve at the revolving center of the sleeve, thereby maintaining a uniform gap between the inner circumference face of the sleeve and the sucking member regardless of the vibration from the actuating compressor so as to improve oil supply reliance.

Abstract: The invention relates to a method for controlling a compressor installation with at least one lubricated screw-type compressor element (1) connected to a pressure vessel (11) which is driven by an electric motor (10) which is regulated in function of the compression pressure, and which compresses the gas supplied through the gas inlet conduit (2). The return flow of lubricating agent through the return conduit (7) also is determined by a controlled valve (9) which is provided with a calibrated opening (29) and which is controlled by control means (43) which, as the number of revolutions of the screw-type compressor element (1) has dropped below a well-defined value, put the controlled valve (9) into the position in which it restricts the return flow of lubricating agent to a flow through the calibrated opening (29).

Abstract: In a lubricant supplying apparatus of a reciprocating compressor including a lubricant cylinder fixed to a compressing unit having a lubricant suction passage and vibrating with the compressing unit, a lubricant piston slide-inserted into the lubricant cylinder and sucking/discharging lubricant by generating a pressure change inside the lubricant cylinder in vibration of the compressing unit, a lubricant valve fixed to the compressing unit and having a lubricant suction valve open in a suction process of the lubricant piston and a lubricant discharge valve open in a discharge process of the lubricant piston, and a valve cover covering the lubricant value and fixed to the compressing unit and having a discharge port open/shut by the lubricant suction valve of the lubricant valve, a productivity of a reciprocating compressor is improved by facilitating a process and an assembly of the lubricant valve, and a reliability of the reciprocating compressor is enhanced by stabilizing a movement of the lubricant valve.

Abstract: A test fixture will test windage on high-speed gears. The test fixture has a case with a sump. A shaft is rotatably mounted in the case for receiving and rotating a test gear. A power source is coupled to the shaft for driving the shaft. A nozzle is mounted in the case for discharging a liquid onto the gear teeth, the liquid then collecting in the sump. A pump is connected to the sump and the nozzle for pumping the liquid from the sump to the nozzle. A baffle mounts to a wall of the case and encloses at least a portion of the gear. The power to the motor as well as temperature are sensed to determine various baffle configuration efficiencies.

Abstract: A viscous pumping system for lubricating a bearing, including a reservoir configured to store a lubricant, a housing connected to the reservoir and mounting the bearing, and a shaft disposed in the housing and supported by the bearing. The shaft is rotatable in a forward direction and a reverse direction and has a first helical groove and a second helical groove. The first helical groove and the second helical groove are configured so that they act to pump sufficient lubricant from a groove origin to the bearing when said shaft rotates in both the forward direction and the reverse direction. It is contemplated that the viscous pumping system may be used to lubricate the bearing of a variable capacity compressor.

Abstract: An improved bearing for a sealed compressor incorporates a bearing mount mounted radially outwardly of the bearing. Oil supply passages extend through the bearing mount to supply lubricant to the bearing. A magnet is positioned outwardly of the bearing mount, and will collect magnetic debris within the lubricant. The positioning of the magnet adjacent to the oil supply passages provides adequate removal of the debris in an efficient way.

Abstract: A microturbine engine core with gas bearings used to support a rotating group is provided, including methods of optimizing the engine core's performance. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to ascertain quickly the subject matter of the technical disclosure. The abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: An oil spout is drilled in the crankcase of a scroll compressor between the outer seal and the coupling. The oil spout intersects the oil return chamber to redirect a portion of the oil exiting the oil return passage to the lower surface of the orbiting scroll between the outer seal and the coupling. It is preferred that the oil spout be substantially perpendicular to and smaller in diameter than the oil return passage. The oil spout provides a continual flow of additional lubrication to the outer seal and the coupling, preventing excessive wear of the outer seal and improving overall seal reliability.

Abstract: There is provided a hermetic compressor in which an oil hole is directly formed in an inner wall of a piston hole on which a lateral component force is exerted, thereby intensively performing a lubricating action at the portion which is susceptible to the friction and wear. Further, since the oil hole is formed to penetrate through the side wall of the piston hole, a foreign matter contained in the oil is prevented from being introduced into the piston hole. Further, the friction and wear between the piston and the cylinder block is basically prevented, thereby preventing the lowering of the performance and the deformation of the compressing instrument by the increasing of the interior temperature of the compressor.

Abstract: A hermetic motor compressor unit for household and similar refrigeration appliances, comprising a sealed casing having a bottom that forms a sump for holding lubricating oil. Inside of the casing is a compressor and driving motor that share a common hollow crankshaft that rotates about a vertical axis. To ensure effective lubricating oil flow into the hollow crankshaft, a means for providing suction comprising a sleeve is rigidly fixed to the lower end portion of the crankshaft. A fluted member made of a material with a lower thermal conductivity than the material from which the hollow crankshaft is made that is connected to the stator of the drive motor is inserted into the sleeve to draw the lubricating oil from the sump. The lubricating oil is drawn in from the oil sump into recesses in the fluted member when the sleeve is rotated into the position in which it allows the recesses to communicate with lower apertures in the sleeve. This occurs during the downstroke of the fluted member.

Abstract: The present invention is intended to remove foreign matter such as worn powder in a refrigerating cycle and enhance the reliability in a refrigerating cycle using, in particular, HFC refrigerant. In the invention, accordingly, a coil shaped connection piping is provided in at least front portion or rear portion of a throttling unit, a fine pipe is connected to a lower portion of the connection piping, and a collector for collecting foreign matter in the refrigerating cycle is coupled to this fine pipe. Foreign matter in the refrigerant is separated from the refrigerant by centrifugal force, and is collected in the collector. Moreover, the foreign matter collecting effect is enhanced by disposing a magnetic piece in the collector.

Abstract: The invention concerns a piston compressor, particularly a hermetically enclosed piston compressor, with a housing, in which a motor is arranged, the motor having a crankshaft with a vertically standing crank pin that has in its upper front side an opening, which is connected with an oil supply arrangement.

Abstract: A scroll compressor having a simple structure is disclosed, which effectively decreases the thrust load imposed on the revolving scroll without degrading the compression efficiency. The scroll compressor comprises a casing; a fixed scroll provided in the housing and comprising an end plate and a spiral protrusion built on one face of the end plate; and a revolving scroll provided in the casing and comprising an end plate and a spiral protrusion built on one face of the end plate, wherein the spiral protrusions of each scroll are engaged with each other so as to form a spiral compression chamber.

Abstract: An improved bearing for a sealed compressor incorporates a bearing mount mounted radially outwardly of the bearing. Oil supply passages extend through the bearing mount to supply lubricant to the bearing. A magnet is positioned outwardly of the bearing mount, and will collect magnetic debris within the lubricant. The positioning of the magnet adjacent to the oil supply passages provides adequate removal of the debris in an efficient way.

Abstract: In a gas compressor having a crankcase rotatably supporting a drive shaft connected to and adapted for operating compression generating structure of the compressor, the shaft being connected to an electrical motor for being driven thereby in either rotational direction, and the shaft having an oil passage formed generally longitudinally therein for conveying lubricating oil to various portions of the compressor, unique oil pump structure having from one to about six slots formed generally radially thru a portion of the shaft and communicating with the oil passage, an elongated vane slidably mounted in each slot for movement both longitudinally and laterally thereof to provide an oil conduit alongside each of the vanes regardless of the direction of rotation of the shaft, a wall slidably enclosing the shaft portion and having a circular inner surface eccentrically positioned with respect to the shaft portion such that a small vertical segment of the inner surface lies adjacent the shaft portion to thereby prov

Abstract: A main shaft bearing lubricating apparatus for a sealing-type reciprocating compressor having a rotor provided to a rotary shaft and rotating about the rotary shaft with respect to a main shaft bearing with a trust washer between, and a reciprocating piston connected to one front end of the rotary shaft through a crank, including a plurality of lubricating grooves formed on the main shaft bearing's front section and each having an intake point and an outlet point that are disposed on different positions by a given angle with respect to the main shaft bearing's center of rotation.

Abstract: A hermetic compressor assembly includes a compressor housing having a quantity of liquid lubricant therein. A compressor mechanism is provided within the compressor housing and a drive shaft is selectively rotatable and operably connected to the compressor mechanism. A liquid lubricant displacement element is engaged to the drive shaft and a support member is attached to the compressor housing. A pivotable magnetic member is provided between the liquid lubricant displacement element and the support member and includes a suction port provided therein. The liquid lubricant displacement element is in fluid communication with the quantity of liquid lubricant through the suction port in the magnetic member. At least a portion of any ferrous particles contained in the liquid lubricant are attracted to and retained by the magnetic member as the liquid lubricant is passed through the suction port of the magnetic member.

Abstract: The invention relates to a piston compressor, particularly a hermetically enclosed refrigerant compressor, with a crankshaft, which is axially supported in an axial bearing in relation to a bearing housing, and with an oil pump arrangement.

Abstract: The invention relates to a piston compressor, particularly a hermetically enclosed refrigerant compressor, with a crank drive, having a crank shaft with an eccentric crank pin and an oil channel arrangement, and a connecting rod with a first piston-side connecting rod eye and a second pin-side connecting rod eye, said eyes having between them a connecting rod shank with a longitudinal channel, which opens into the connecting rod eyes.

Abstract: A lubricating system, preferably for smaller refrigerating machinery of piston compressor type (1, 2, 3) having a substantially vertically extending drive shaft (4). A disc-shaped member (11) is arranged adjacent to the lower part of the drive shaft (4) to be rotated by the rotary movement of the drive shaft (4), arranged having oil transferring means (12; 20, 20′, 20″) communicating with oil in an underlying oil reservoir (10). Said oil transferring means (12; 20, 20′, 20″) will during a rotary movement transfer oil from the oil reservoir (10) to the upper plane of the disc-shaped member (11), and a tubular pipe (14), having its lower open part (15) open against the rotary direction at the peripheral part of the disc-shaped member (11), moves in the manner of a Pitot pipe pump oil via the tubular pipe (14) from the disc-shaped member (11) for lubrication of the piston compressor (1, 2, 3).

Abstract: A displacement type fluid machine is composed of: a first lubricating fluid pump for feeding lubricating-oil which is provided at the rotating shaft, and is immersed in the lubricating fluid stored in the lubricating fluid-storing chamber, for feeding lubricating fluid to a first one of the two sliding portions via a lubricating fluid-guiding path formed at the rotating shaft; a second lubricating fluid pump which is provided at the rotating shaft, for raising the pressure of lubricating fluid which has been fed via the lubricating fluid-guiding path by a predetermined pump head, and feeding the lubricating fluid, which has been fed via the lubricating fluid-guiding path, to a second one of the two sliding portions; and a third lubricating fluid pump which is provided at or near the rotating shaft, for raising the pressure of lubricating fluid which has been fed via the lubricating fluid-guiding path by a predetermined pump head, and feeding the lubricating fluid, which has been fed via the lubricating fluid-

Abstract: The present invention relates to an oil supply device for a closed reciprocating compressor, and more particularly to an oil supply device for a closed reciprocating compressor to minimize a movement of an oil scum and increase pumping amount during an oil supply by improving a structure of an end portion of the oil supply device installed at an end portion of a rotary axis 23, thereby minimizing a friction noise. it is an object of the present invention to improve the structure of an end portion of an oil supply device 40 and generates a magnetic field between a stator 21 and a rotor 22 that rotates a rotary axis 23 by being applied a power.

Abstract: In order to improve a compressor for refrigerant, comprising a housing, at least one refrigerant-compressing element arranged in the housing, a shaft which has a section extending in the housing and driving the refrigerant-compressing element, a section passing through a wall of the housing and a drive section projecting out of the housing as well as a sealing arrangement effective between the section of the shaft passing through the wall and the housing and having a slide ring seal and an outer sealing ring, between which an oil receiving chamber is arranged, from which oil can be discharged via an oil outlet, in such a manner that, on the one hand, as little oil as possible leaks out and, on the other hand, as good a shut-off as possible in relation to the entry of air can be achieved it is suggested that an oil collecting area of the oil receiving chamber communicate via a siphon arrangement with an ascending channel which leads to an outlet for the oil.

Abstract: A motor-driven compressor is formed integrally with a compression portion and a motor for compressing refrigerant. The motor-driven compressor includes a drive circuit for controlling the driving of the motor. The drive circuit is incorporated into a refrigerant suction side portion of the motor-driven compressor. The motor-driven compressor may be made small and inexpensively, as well as the total system which includes the drive circuit. The assembly of the system may also be more easily facilitated. Further, electromagnetic radiation from an inverter of the drive circuit may be shielded.

Abstract: In a compressor that can be used for supplying compressed air in motor vehicles and also for stationary systems, permanent oil filling is provided for cooling a compressor pressure area including a cylinder head and for lubricating a transmission area including a drive shaft and swash plate. The pressure area of the compressor that can be heated by the heat of compression and friction and the transmission area of the compressor are separated from one another by check valves with a delivery pump wheel being provided which transports the oil between the transmission area and the pressure area in such fashion that the oil that is heated in the pressure area is cooled in the transmission area. By cooling the oil in the transmission area, it is possible for a middle housing section of the compressor housing, as well as a housing section delimited by a cylinder head and receiving the piston arrangement, to be made of plastic.

Abstract: The invention relates to a rotary screw machine that is completely oil-free. Known rotary screw machines with cooling, sealing, lubrication of the screw rotors and oil-lubrication and oil-cooling of the bearings have been replaced with water-lubricated and water-cooled bearings. Each screw rotor (102) is mounted in a water-lubricated radial slide bearing (1) and one trunnion (31) of the rotor co-acts with a water-lubricated thrust bearing (9, 10) which acts both as an hydrodynamic and an hydrostatic bearing. The trunnion bearing housing (21) is in fluid connection with the rotor housing, both along the trunnion and via a conduit (27) from the bearing housing interior to the gas inlet (108) of the screw rotor or via a channel which is cut-off from said inlet.

Abstract: A rotary device containing a housing having a curved inner surface with a profile equidistant from a trochoidal curve, an eccentric mounted on a shaft disposed within the housing, a rotor mounted on the eccentric shaft which contains at least three intersecting faces and a partial bore located at the intersection of adjacent faces, and at least three hollow rollers rotatably mounted within the partial bores of the rotor.

Abstract: An oil free screw compressor includes a compressor main body directly connected to a high speed motor via a drive side gear and a driven side gear having a uniform speed ratio. A bearing in a side of the high speed motor employs one having the same size as that of a bearing in a side of the compressor main body. The same material as a viscous seal provided at both end portions of a male rotor and a female rotor is used for a viscous seal provided at both end portions of a motor shaft. The high speed motor is driven by a high frequency type inverter. The electric motor side and the compressor main body side are made in a rotational shaft structure which is dummy symmetrical about a uniform gear portion.

Abstract: A device for the supply of a liquid under pressure to a flow passage (13) in a member in a shaft suspension unit (1) of a centrifugal separator, which has a stationary casing (3) and a unit, which is resiliently and oscillation dampingly suspended in the casing (3) by at least one elastical element (10), the member forming a part of the composed unit. To be able to supply liquid to the member in a sample manner with a certain controllable flow which is made sure under overpressure a first supply channel portion (19) is connected to a liquid source (16) for the supply of liquid under pressure extending through the stationary casing (3). To the first supply channel portion (19) there is connected a second supply channel portion (21) extending through the elastical element (10). A third supply channel portion (23) is connected to the second supply channel portion (21), extending through the non-rotatable part of the composed unit and having an outlet opening (24) in the flow passage (13).

Abstract: This compressor 1 is for compressing an introduced working gas to a predetermined pressure and exhausting by means of the rotation of a crank shaft 5 which is rotatively supported by a front case 4 of a housing 1A by a main bearing 6, and has a partition means 31 (labyrinth seal for example) which is provided between the main bearing and a shaft seal 28 which is provided at the outer side of the main bearing along the axial direction, and separating a space in which the shaft seal is provided from a low pressure chamber 15 of the housing to form a sealing chamber 30, and a first lubricating agent supply passage 29 which is formed in the housing and is opened to the sealing chamber for supplying a lubricating agent to the sealing chamber. A part of the highly compressed lubricating agent which is supplied the sealing chamber can be leaked to the low pressure chamber via the partition means during the operation of said compressor.

Abstract: A vertical compressor is converted to a horizontal compressor by laying the vertical compressor on its side and locating it within the standard shell of a larger vertical compressor. The end caps and partition of the smaller compressor are removed while the end caps and the partition of the larger compressor are added. A lubricant pump pumps lubricant from the sump defined between the two shells to all areas of the compressor requiring lubrication.

Abstract: An inclined surface is formed in an upper inside wall of housing. The inclined surface inclines downwardly toward a lip seal. Lubricant oil supplied to the upper end of the inclined surface flows along the inclined surface without dropping downwardly due to surface tension, and flows to the lower end of the inclined surface then reaches the lip seal. Thus, the lubricant oil is supplied to the lip seal with certainty, thereby suppressing the wear of the lip seal and improving the durability of the compressor.

Abstract: An oil supply apparatus for a linear compressor reduces the number of valves which control oil suction and discharge, thereby enabling fabrication and assembly of an apparatus and supplying an oil of an adequate amount to friction areas of driving elements, and increases a compression force of a mass, thereby increasing circulation volume of an oil. The oil supply apparatus for the linear compressor, includes: a compressor unit in which an oil discharge outlet is formed; an oil supply pipe disposed at an outer side of the compressor unit, an end of which communicates with an end of the oil discharge outlet; an oil valve an end of which is fixedly engaged with a side portion of the compressor unit and the other end of which is selectively in contact with the other end of the oil discharge outlet; and a discharge cover positioned at an outer side of the oil valve and engaged with the compressor unit, so that an oil path is formed between the discharge cover and the compressor unit.

Abstract: An oil circulation structure for a linear compressor and a method of the same are disclosed.

Abstract: A first lubricating oil passage and a second lubricating oil passage, extended from a contacting surface between a partition wall and a fixed scroll are formed in the partition wall (middle housing). A recess for communicating the first lubricating oil passage with the second lubricating oil passage is formed on the fixed scroll. Accordingly, the lubricating oil amount between the first lubricating oil passage and the second lubricating oil passage is easily controlled by adjusting the size of the recess.

Abstract: Upon starting instruction of a compressor before the compressor is started, a pressurized water jet line 20 is opened and pressurized water is jetted to the inside of the compressor. By this manner, a dry operation with rotors and a mechanical seal kept in a dry state is definitely prevented and the compressor can be started even after it is stopped for a long hour. Further, the compressed air is supplied to the inside of the water tank, and the water from the water tank is jetted to the inside of the compressor by its pressure. The compressed air ejected from the water tank is cooled below a saturation temperature of water content and the water content thereof is condensed and separated. The separated water content is supplied to the inside of the compressor, and an excess circulating water is discharged from the water tank. Thus, a long hour continuous operation can be performed without replenishing water.