Rotary Patents (Class 184/63)
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Patent number: 4629033Abstract: Discloses a backup lube oil pump system for a steam turbine lube oil system. The primary and secondary pump system of the prior art lube oil system normally includes a primary centrifugal pump affixed to the turbine shaft and ac and dc motor-driven pumps to supply lubrication during start-up and shutdown when the primary pump cannot maintain flow due to low rotational speed. If the turbine is coasting down due to an ac power failure, the ac motor-driven backup pump is inoperative. The dc (battery) driven backup pump becomes the only backup left and the failure of batteries if not charged regularly can render it as a poor backup system. In the invention a backup lube oil system having high reliability utilizes a positive displacement lube oil pump driven by a rotor-driven permanent magnet generator. The pump is in parallel with a primary check valve in the lube oil feed line, so that the positive displacement backup lube oil pump is supplying oil at all times to the shaft bearing.Type: GrantFiled: June 28, 1984Date of Patent: December 16, 1986Assignee: General Electric CompanyInventors: James H. Moore, Sidney J. Woodcock, Charles R. Dumas
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Patent number: 4605357Abstract: The invention comprises supplanting the usual, single, electrically-operated, blowdown valve, located on the receiver/separator tank of a gas compressor system with a pair of valves operatively arranged in parallel. The one valve operates normally in the manner of the supplanted valve, albeit with reduced venting capacity, and the other is held closed on starting of the compressor. This restricts the venting of the tank and causes its quick pressurization, to induce prompt oil injection for the compressor. A sensor detects the injection oil temperature and when the latter has achieved a given setpoint, the other, vent-restricting valve is opened. Accordingly, the method comprises sensing the temperature of the oil injected into the compressor and holding one of the paired venting valves closed until the oil temperature reaches the aforesaid given or predetermined setpoint.Type: GrantFiled: November 25, 1985Date of Patent: August 12, 1986Assignee: Ingersoll-Rand CompanyInventor: Jeffrey S. Keith
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Patent number: 4583919Abstract: In a first embodiment, the invention comprises supplanting the usual, single, electrically-operated, blowdown valve, located on the receiver/separator tank of a gas compressor system with a pair of valves operatively arranged in parallel. The one valve operates normally in the manner of the supplanted valve, albeit with reduced venting capacity, and the other is held closed on starting of the compressor. This restricts the venting of the tank and causes its quick pressurization, to induce prompt oil injection for the compressor. A sensor detects the injection oil temperature and when the latter has achieved a given setpoint, the other, vent-restricting valve is opened. Accordingly, the method comprises sensing the temperature of the oil injected into the compressor and holding one of the paired venting valves closed until the oil temperature reaches the aforesaid given or predetermined setpoint.Type: GrantFiled: June 18, 1984Date of Patent: April 22, 1986Assignee: Ingersoll-Rand CompanyInventor: Jeffrey S. Keith
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Patent number: 4553512Abstract: A pump assembly which operates in connection with a starter motor is provided. The device, which is of small dimensions is contained with a compact pump housing. A gear pump is provided within the pump housing which is operatively associated with the drive shaft of a starter motor. A shaft extension device is also provided which may be adapted to a starter motor drive shaft thereby allowing the device of the present invention to be used with a variety of starter motors. The pump assembly is provided with a fluid delivery system which is operatively associated with the fluid inlet means in the pump housing. Further provided is a receiver means which receives fluid discharged from the outlet means of the pump housing. A pressure regulating device may also be provided within the end cap of the pump housing. The pressure regulating device is operatively associated with the pump assembly and controls fluid pressure in the pump fluid cavity during operation of the pump assembly.Type: GrantFiled: January 17, 1985Date of Patent: November 19, 1985Inventor: Gerald Showman
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Patent number: 4531886Abstract: A drum pump for a turbine which comprises a turbine housing having an internal wall defining an interior cylindrical chamber. A cylindrical drum having an outer cylindrical surface and an annular channel formed on its inner surface is coaxially rotatably mounted to the housing within the housing chamber so that the outer periphery of the drum is spaced radially inwardly from the housing wall. A pair of axially spaced annular fluid seals extend between the housing and the outer periphery of the drum and form an annular outlet chamber therebetween. At least one outlet passageway is formed in the housing and open to the outlet chamber while, similarly, a connecting passageway is formed from the drum and extends between the channel and the outlet chamber. A fluid jet supplies fluid to the drum channel so that, upon rotation of the drum, the fluid is centrifugally pumped out through the connecting passageway, to the outlet chamber and out through the outlet passageway in the housing.Type: GrantFiled: April 4, 1983Date of Patent: July 30, 1985Inventors: Casimir Rogo, Aldo Urbani
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Patent number: 4526054Abstract: A transmission, e.g. a wheel hub gear (1), with a load-dependent, controllable splash lubrication. It has a second, oil storage, zone (12), which is a continuation of its housing (2). This oil storage zone (12) has an annular chamber (16). By displacing oil from the first zone (11) into the second zone (12) via an interconnection port (13), a displacement which is achieved by means of centrifugal forces, by draw-tube-like interconnection ports, or by integrated displacement elements (18, 19), one obtains a reduction of the submersion depth (9) of the rotating gear parts (4) to a thickness (8) of an oil ring (7) which forms at the interior casing surface (6). The minimum oil ring (7a) which is thus established secures adequate residual lubrication during normal operation of the gear with minimal energy losses from splashing, etc. For occasional higher loads, e.g.Type: GrantFiled: February 28, 1983Date of Patent: July 2, 1985Assignee: Zahnradfabrik Friedrichshafen AGInventor: Friedrich Ehrlinger
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Patent number: 4513705Abstract: A lubrication assembly for supplying pressurized lubricant to the center bearing of an exhaust-driven turbocharger associated with an internal combustion engine during turbocharger spin down after the engine has been shut down comprises a reservoir means for storing a quantity of lubricant under pressure. The reservoir means is coupled in fluid communication with the lubricant line which supplies lubricant to the center bearing when the engine is running. A valve means controls flow of lubricant between the center bearing lubricant line and the reservoir means. This valve means permits the reservoir means to capture and store lubricant at peak engine lubricant pressure. The valve means releases lubricant from the reservoir means to the center bearing in order to provide lubricant to the center bearing during the turbocharger spin down period after engine shut down when the engine lubricant pump is likewise shut down.Type: GrantFiled: December 2, 1983Date of Patent: April 30, 1985Inventor: John W. Evans
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Patent number: 4513704Abstract: In an engine pressurized prelubricator assembly or an assembly for providing pressurized lubricant to the center bearing of an exhaust-driven turbocharger, flow restrictor means are disposed in the conduit connecting the engine lubricant system to the reservoir means for storing pressurized lubricant. The flow restrictor means restricts flow of lubricant into the reservoir means thereby preventing starving of the engine lubricant system for lubricant during charging of the reservoir means with lubricant. The flow restrictor means permits substantially unrestricted flow of lubricant from the reservoir means to the engine or center bearing when lubrication is required. A manually operated valve means is provided for use in the conduit connecting the engine lubricant system to the reservoir means. The rate of flow of lubricant through the valve and hence to and from the reservoir means is selectable by manually operating the valve.Type: GrantFiled: December 2, 1983Date of Patent: April 30, 1985Inventor: John W. Evans
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Patent number: 4458644Abstract: A lubricating arrangement for an I.C. engine in which at least one lubricating pump for engine lubrication is activated by a battery-fed electric motor, independent of the I.C. engine, which supplies a preset oil quantity which is unrelated to the rpms of the I.C. engine. As this lubricating pump is driven by a battery-fed electric motor which runs up within a fraction of a second, the I.C. engine is instantly under pressure with a full quantity of lubricating oil.Type: GrantFiled: April 25, 1983Date of Patent: July 10, 1984Inventor: Hermann Papst
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Patent number: 4453511Abstract: An arrangement for lubricating, especially for internal combustion engines is disclosed. The circuit of the arrangement is fed with the lubricating medium, e.g. oil, by way of a pump which delivers oil from a source, as required through an oil cooler and a filter, to bearings of the engine which require lubrication, and to more remote bearings, such as are used in auxiliary equipment, e.g. off-gas turbo-superchargers. In the main pressure conduit, relatively close to the pump, there is provided a flow control device with a direct conduit being provided to communicate the pump with the more remote bearings. The direct conduit is connected to the circuit between the pump and the flow control device. As required, an oil filter can be arranged in the direct conduit.Type: GrantFiled: March 19, 1982Date of Patent: June 12, 1984Assignee: Klockner-Humboldt-Deutz AktiengesellschaftInventor: Heinz Pluequet
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Patent number: 4433656Abstract: A port proximate to an automotive oil filter, and a closure therefor, used to precharge a newly installed oil filter with oil. The port may be located either in an adaptor mounting plate, which is located between the filter and the engine block, or in the engine block itself. The port is in fluid communication with the filter, allowing a newly installed filter to be precharged with oil to minimize engine wear.Type: GrantFiled: July 22, 1982Date of Patent: February 28, 1984Inventor: Joseph E. Norwood, Sr.
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Patent number: 4403927Abstract: An oil distribution system for lubricating bearings in a scroll compressor. The system includes an oil collector cup attached to the lower surface of a swing link. Oil pumped through an internal passage in a rotating drive shaft is retained in the collector cup when the compressor stops, so that it is immediately available to lubricate adjacent bearings upon restart of the machine. Also disclosed in two embodiments are means for distributing and properly allocating the flow of oil between a thrust bearing and a swing link bearing.Type: GrantFiled: September 8, 1981Date of Patent: September 13, 1983Assignee: The Trane CompanyInventors: Arthur L. Butterworth, Robert E. Utter
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Patent number: 4377374Abstract: A spring actuated piston pump for use in lubricating the bearings of a turbo-charger rotor, both on starting and stopping an associated internal combustion engine. The pump has a piston-and cylinder combination the piston of which is spring-urged towards the cylinder head, and there is a releasable catch arrangement operable on the piston to restrain movement of the piston towards the cylinder head when the piston is part-way between the extremes of its travel. The catch means is solenoid operated for connection to the engine starter system, so that the piston is released when the engine is started.The pump chamber is connected to the engine lubrication system and the turbo-charger bearings through suitable ducts and one-way valves, so that on ordinary operation of the engine the pump chamber is full of oil with the piston fully retracted. On stopping the engine the piston moves under the spring bias discharging oil to the turbo-charger bearings until restrained by the catch arrangement.Type: GrantFiled: May 4, 1981Date of Patent: March 22, 1983Inventor: Frederick J. Taylor
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Patent number: 4363214Abstract: A lubricating system for automotive components includes an oil reservoir to supply an initial charge of lubricating oil upon cold starting of the engine, with provision to maintain the reservoir in a full attitude after the engine lubricating oil has warmed and is freely circulating, thereby preserving a charge of oil available for the next cold starting of the engine.Type: GrantFiled: July 7, 1980Date of Patent: December 14, 1982Inventor: Robert W. Kiser
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Patent number: 4359140Abstract: An auxiliary lubrication means is disclosed which is suitable for use in conjunction with an internal combustion engine or similar mechanical device. The present apparatus includes a reservoir for storing a lubricant under pressure during normal operation of the engine. Upon failure of the engine's lubrication system, or during a subsequent start-up procedure, the means of the present invention is operative to provide lubricant to the moving parts of the engine.Type: GrantFiled: July 7, 1980Date of Patent: November 16, 1982Inventor: James S. Shreve
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Patent number: 4356889Abstract: An add-on forced lubrication system is provided for assembly to a standard transmission (10). The forced lubrication system comprises a drive adapter (48) mountable to end of a shaft (12) accessible from the exterior of the housing (14) through a removable cover (28), a pump (68) driven by said shaft by a pump drive shaft (66) received in said adapter and mountable to said housing at an interface (74) substantially identical the interface (29) of the removable cover, a first fitting (82) receivable in a first bore (40) communicating with the transmission sump (36) and normally closed by a first plug (42), a lubricant conduit connecting said first filling to the pump inlet (76), a second fitting (94) receivable in a second bore (44) normally sealed by a plug (46) and a conduit (96) connecting said fitting with the pump outlet (78).Type: GrantFiled: August 13, 1980Date of Patent: November 2, 1982Assignee: Eaton CorporationInventor: Terry E. Teeter
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Patent number: 4331112Abstract: An arrangement for lubricating, especially for internal combustion engines is disclosed. The circuit of the arrangement is fed with the lubricating medium, e.g. oil, by means of a pump which delivers oil from a source, as required through an oil cooler and a filter, to bearings of the engine which require lubrication, and to more remote bearings, such as are used in auxiliary equipment, e.g. off-gas turbo-superchargers. In the main pressure conduit, relatively close to the pump, there is provided a flow control device with a direct conduit being provided to communicate the pump with the more remote bearings. The direct conduit is connected to the circuit between the pump and the flow control device. As required, an oil filter can be arranged in the direct conduit.Type: GrantFiled: October 2, 1979Date of Patent: May 25, 1982Assignee: Klockner-Humboldt-Deutz AktiengesellschaftInventor: Heinz Pluequet
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Patent number: 4199950Abstract: A system for prelubricating an engine wherein lubricating oil is delivered to relatively movable parts of the engine during starting in the form of an atomized mist generated by an atomizing spray nozzle operating under an extremely high pressure in the order of 250 to 10,000 psi, so that not only is the mist extremely fine but the oil particles thereof are projected from the nozzle at a high velocity that causes the mist to penetrate into every interstice between relatively movable parts and over every set of relatively movable surfaces so as to coat all parts of the engine which would be subjected to frictional wear were it not for the presence of the oil particles. Moreover, in such system, and particularly in a system employing parts that experience relative rotation at very high speeds such, for instance, as the journals and bearings of a turbocharger, the instant prelubricating system furnishes lubricating oil, e.g.Type: GrantFiled: December 1, 1977Date of Patent: April 29, 1980Inventors: Alton L. Hakanson, Wilbur C. Schafer
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Patent number: 4169519Abstract: A lubricating device for use with transmission gearing, particularly in the starting phase of the transmission. A pair of oil reservoirs are provided with one being located higher than the other. The upper reservoir contains the transmission gearing therein. A pair of vertically spaced outlets are provided in the upper reservoir with both outlets being connected in fluid circuit with the lower reservoir. The fluid circuit for the lower outlet includes a valve controlling the flow of oil between the upper and lower reservoirs in response to the fluid pressure produced by a pump. The transmission gearing is immersed in the oil when the lower outlet is blocked by the valve, which will occur when the pump is off.Type: GrantFiled: February 24, 1978Date of Patent: October 2, 1979Assignee: Carl Hurth Maschinen-und ZahnradfabrikInventors: Manfred Hirt, Wolfgang Leiber
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Patent number: 4157744Abstract: A system for pre-lubricating and post-shutdown cooling of an automotive engine system component, such as a turbocharger, comprising a first tank having an oil inlet, an oil outlet, oil cooling means, and pressure means responsive to accumulation of oil in the tank to pressurize the oil therein, a second tank having an oil inlet, an oil outlet, and pressure means responsive to accumulation of oil in the second tank to pressurize the oil therein, input conduit means connected to supply oil to the inlets during engine operation, first output conduit means connected between the first tank outlet and the component, second output conduit means connected between the second tank outlet and the component, and valve means normally preventing flow in the second output conduit means but responsive to engine cranking to permit flow from the second tank to the component.Type: GrantFiled: July 18, 1977Date of Patent: June 12, 1979Inventor: Lawrence J. Capriotti
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Patent number: 4126997Abstract: An engine comprises a pump adapted to communicate lubricating oil from the crank case thereof to a directional control valve. Upon engine start-up, the valve is conditioned to communicate oil through a filter and to a first manifold which, in turn, communicates with the crankshaft and rod bearings of the engine. Simultaneously therewith, cooled but unfiltered oil is communicated directly to bearings rotatably mounting a shaft in a turbocharger, mounted on the engine. After start-up, the valve will shift to further communicate unfiltered oil directly to a second manifold which, in turn, communicates with a plurality of jets for the purpose of cooling the pistons employed in the engine. The shifted valve will further function to permit communication of oil through the filter to the bearings of the turbocharger and to the crankshaft and rod bearings of the engine.Type: GrantFiled: July 14, 1977Date of Patent: November 28, 1978Assignee: Caterpillar Tractor Co.Inventor: Ralph B. Henson
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Patent number: 4112910Abstract: A pre-lube device for internal combustion engines. A quantity of oil, heated if desired, is stored in a chamber. Upon activation of the ignition for the engine, an electromagnet is energized, releasing a holding device for a coiled power spring which allows the spring to fully extend. The extending spring drives a piston located within the oil chamber to a fully extended position, thereby forcibly evacuating the oil from the chamber through a conduit into and throughout the engine galley in order to fully lubricate the engine prior to start, for the purpose of minimizing wear on the engine.Type: GrantFiled: April 23, 1976Date of Patent: September 12, 1978Assignee: Prelube CorporationInventor: Donald W. Percy
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Patent number: 4094293Abstract: A preoiler and lubricating fluid reservoir for use primarily with an internal combustion engine is disclosed. A hollow cylindrical reservoir is provided with an internal slidable piston which divides the cylinder into a compressed air retaining section and a lubricating fluid retaining section. A solenoid controlled valve assembly, which is controlled by the vehicle's oil pressure sensor unit, regulates the flow of lubricating fluid either out of the reservoir either during start up of the engine or in instances of low oil pressure, and into the reservoir during periods of normal engine operation. The valve is structured to insure that oil flow out of the reservoir during preoiling is unrestricted but that refilling of the reservoir is accomplished only after the engine's oil pressure has come up to normal operating level. The system also serves to provide emergency oiling of the engine should the oil pump fail or a loss of oil pressure be encountered.Type: GrantFiled: April 16, 1976Date of Patent: June 13, 1978Inventor: John W. Evans
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Patent number: 4061204Abstract: A pressurized vessel disclosed as an accumulator is in valve controlled communication with an oil gallery or passageway for pressurizing same prior to machinery motion. A solenoid actuated valve is energized to communicate the accumulator with the oil gallery. A flow control valve, between the accumulator and the oil gallery, automatically opens to release accumulator pressure and pump operation for recharging of the accumulator with pressurized oil during machinery operation.Type: GrantFiled: February 9, 1976Date of Patent: December 6, 1977Inventor: Walter C. Kautz, Jr.
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Patent number: 4058981Abstract: An engine comprises a pump adapted to communicate lubricating oil from the crank case thereof to a directional control valve. Upon engine start-up, the valve is conditioned to communicate oil through a filter and to a first manifold which, in turn, communicates with the crankshaft and rod bearings of the engine. Simultaneously therewith, cooled but unfiltered oil is communicated directly to bearings rotatably mounting a shaft in a turbocharger, mounted on the engine. After start-up, the valve will shift to further communicate unfiltered oil directly to a second manifold which, in turn, communicates with a plurality of jets for the purpose of cooling the pistons employed in the engine. The shifted valve will further function to permit communication of oil through the filter to the bearings of the turbocharger and to the crankshaft and rod bearings of the engine.Type: GrantFiled: June 4, 1976Date of Patent: November 22, 1977Assignee: Caterpillar Tractor Co.Inventor: Ralph B. Henson
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Patent number: 4050543Abstract: A lubricating device for dispensing a prescribed amount of lubricant onto gearing at intervals during the operation or immediately upon starting the gears. The lubricating device is composed of a tank having a bell-like housing located therein. The lower edge of the bell is spaced upwardly from the bottom wall of the tank to permit lubricant to flow inside the bell. A valve member is cooperable with the bottom wall of the tank, which bottom wall has openings therein, and is operatively connected to the bell. The valve is opened simultaneous with a closing of the gap between the lower edge of the bell and the upper surface of the bottom wall so that the lubricant within the bell is dispensed out through the discharge openings in the bottom wall of the tank.Type: GrantFiled: May 28, 1976Date of Patent: September 27, 1977Assignee: Carl Hurth Maschinen- und ZahnradfabrikInventor: Wolfgang Schulz
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Patent number: 4012012Abstract: An oil replenishment system provides a remote reserve oil tank and the plumbing necessary to fill the main oil tank or tanks of engines, especially aircraft engines during flight. This system includes apparatus to determine the quantity of oil pumped to any one engine so that a quantity gauge is not required on the engine. A selector valve located on the reserve tank which may be remotely controlled directs replenishment oil to the selected engine tank. The system is designed to be powered from the existing on board hydraulic power system.Type: GrantFiled: October 30, 1975Date of Patent: March 15, 1977Assignee: Lockheed Aircraft CorporationInventor: George E. Ligler
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Patent number: 3951476Abstract: A dynamic bearing lubricant reservoir for permitting a continuous and centrifugally metered flow of lubricant to the active part of the bearing only when the bearing is in the dynamic state i.e. operating, for extending the life of the bearing without affecting its torque.Type: GrantFiled: September 27, 1974Date of Patent: April 20, 1976Assignee: The Bendix CorporationInventors: Howard E. Schulien, William H. Ficken