Abstract: A scroll compressor is mounted at an angle between vertical and horizontal. In this way, the overall height of the compressor is reduced compared to a vertical compressor. Thus, when only a smaller vertical size is available for mounting, the compressor will be useable. On the other hand, if the compressor were mounted directly horizontally, problems would arise with regard to providing proper lubrication. Since the compressor housing is angled, oil collects at an end of the housing remote from the pump unit. An oil delivery system is also provided including an oil slinger to deliver oil into an oil reservoir. An oil pickup tube associated with the shaft is received in the oil reservoir and delivers lubricant to locations along the shaft as needed.

Abstract: An oil supply passage is provided for connecting an oil chamber with a valve chamber, an oil feed passage for connecting a valve chamber with a crank chamber, and an oil return passage for connecting the crank chamber with the oil chamber. The oil return passage is connected with the crank chamber via a plurality of return vents formed on an inner surface of the crank chamber at approximately equal intervals. Providing a bypass passage, one end of the bypass passage opens adjacent to a ceiling of the valve chamber. Another end of the bypass passage opens into a portion facing the restrictor formed adjacent to an outlet of the oil feed passage. Accordingly, the crank chamber and the valve chamber are lubricated by pressure fluctuations of the crank chamber according to the reciprocation of a piston. Thus, it is possible to lubricate the engine even when the engine is tilted in any direction.

Abstract: A four-stroke internal combustion engine in accordance with the present invention comprises a piston, a valve chamber, a crankcase, an oil chamber separated from the crankcase, and an oil mist feeding passage extending from the oil chamber to the crank case via the valve chamber for supplying oil mist in the oil chamber. The oil mist feeding passage has a first passage extending from the oil chamber to the valve chamber, a second passage extending from the valve chamber to the crankcase, and a third passage extending from the crankcase to the first passage. The first passage has a first opening directed toward the oil chamber. The second passage has a second opening directed toward the crankcase located at a point where it can be closed by the piston when it travels downwardly. The third passage has a third opening directed toward the crankcase located at a point below a bottom dead center of the piston.

Abstract: A lubricating system for an internal combustion engine maintains lubrication even in extreme emergency positions of the engine such as slants within the range of about 90.degree. to about 270.degree., relative to the horizontal and even for upside down engine positions. For this purpose, a hydraulic accumulator (16) is connected to the lubricant circulating circuit through a parallel connection of a non-return valve (17) and a controllable valve. Under normal operating conditions, the hydraulic accumulator is charged with lubricant under the pressure prevailing in the lubricant circulating system. Under emergency conditions, the normal lubrication is stopped and emergency lubrication continues through the controllable valve that is opened in response to a pressure drop in the normal lubricant circulating system.

Abstract: A draining apparatus drains and dries hydraulic equipment such as aircraft circuits. The draining equipment includes a reservoir connected to the equipment by a suction line. (Venturi 20) which produces a vacuum in the reservoir responsive to compressed air injected by a line from an external compressed air source. If a calibrated valve is connected to an inlet of the equipment then a branch line of the equipment supplies part of the compressed air to the inlet connection of the equipment so that pressure which enters the equipment is inadequate to produce an overpressure at an outlet.

Abstract: In order to remove oil from the engine, i.e. to evacuate lubricant oil from the crankcase (1), the crankcase and the rotating parts (6, 2, 3) therein are designed so that a centrifugal flow is generated in the crankcase (1) and is used to separate the engine oil from the air that surrounds it. Preferably, only a small gap (8) remains between the outermost partially cylindrical rotating parts, in particular the counterweight (6), and the inner wall of the cylindrical crankcase (1). The oil is removed through an outlet (10) that extends tangentially out of the crankcase (1).

Abstract: Several embodiments of crankcase assemblies for internal combustion engines, wherein the crankcase is configured in such a way as to avoid the loss of oil at the pick-up device, even during sudden maneuvering. This is accomplished in such a way so that the oil will not contact the moving components within the crankcase during normal engine operations so as to avoid churning. In addition, the crankcase is configured in such a way as to provide a plurality of air gaps defined by facing surfaces of the crankcase member so as to provide sound deadening and higher strength with a lighter weight material.

Abstract: A bearing lubrication system in which a shaft is journaled for rotation in an integral bearing in a gear box, the bearing being primarily loaded through less than its full circumference, leaving an unloaded reach of the bearing, the bearing being interrupted through a substantial arc in at least a portion of the unloaded reach to define a gap in the bearing through which lubricant travels, is provided with a fixed scoop for channeling lubricant into the gap. The bearing is a solid bearing, of a piece with a gear box housing, as is the scoop.

Abstract: An engine oil capacitor which allows a larger volume of oil to be used in an internal combustion engine without reducing fuel economy or increasing engine package size. Oil flow through the normal oil drainback holes is partially restricted, resulting in a substantial quantity of oil being temporarily stored in an engine compartment, such as the camshaft compartment, during engine operation.

Abstract: A self-scavenging, hybrid lubrication subsystem for a main transmission gearbox includes a sump fabricated as an integral extension of the lower portion of the gearbox wherein the sump dynamic fluid level is above the gearbox bottom. The interior sidewall of the lower gearbox is modified to include a cylindrical segment having a first radius, a throat segment having a second radius, and a transition segment contiguous with the cylindrical and throat segments. The radial discontinuity between the cylindrical and throat segments defines a nozzle inlet that directs the outflow of lubricating medium in the gearbox bottom to the sump via a nozzle. The outflow end of the nozzle is positioned above the sump dynamic fluid level. Housed within the lower gearbox is a planetary gear train that includes an annular planetary carrier plate having a deflection plate mounted thereto. The periphery of the carrier plate and the cylindrical and throat segments in combination form primary and restricted flow channels.

Abstract: A clutch assembly for a vehicle with selective front wheel drive includes an automatic oil level control system. The clutch assembly includes a housing which encloses a hydraulic clutch. The hydraulic clutch, when engaged, connects a front wheel drive shaft to a main vehicle drive shaft. Since the hydraulic clutch has a tendency to leak fluid into the housing, the fluid level within the housing is controlled by pressurizing the housing via compressed air from a turbocharger or the like. A pair of blow back tubes extend into the housing from opposite sides of the housing, and are interconnected and then connected to an unpressurized reservoir, such as the crankcase or transmission case, via an excess oil evacuation line. The blow back tubes have open ports which are positioned such that, when oil simultaneously covers the ports in both blow back tubes, excess oil is evacuated to the connected reservoir.

Abstract: A number of embodiments of outboard motors including dry sump lubricated four cycle internal combustion engines. The dry sump lubrication system includes a scavenge pump for drawing lubricant drained from the engine lubricating system through an inlet port and returns it to a dry sump reservoir through an outlet port and a pressure pump that draws lubricant from the dry sump lubricant reservoir through an inlet port and delivers it the engine lubricating system through an outlet port. At least one of the ports of each of the pumps is positioned above the normal lubricant level in the lubricant reservoir when it is filled with the normal volume of lubricant so as to insure that lubricant will not drain back into the engine when the pump system is not operating. Various arrangements for achieving this result and for cooling the lubricant are described.

Abstract: In order to continuously supply lubricant to compressor bearings independent of attitude, and under varying gravitational forces, an oil supply system (10) includes an oil sump (14), a pump (22), and a suction tube (24). The oil sump (14) is defined at least in part by a pair of intersecting sump walls (16, 18) each of which may comprise a primary wall dependent upon instantaneous compressor attitude. The pump (22) is adapted to supply the compressor with oil (20) while at the same time removing gases from the oil (20) and expelling the removed gases into the oil sump (14). Additionally, the suction tube extends from the pump to a strategic point within the oil sump (14) for drawing oil (20) from the oil sump (14) to the pump (22) in a manner assisting in priming and repriming during brief interruptions in the flow of oil (20) from the oil sump (14).

Abstract: An oil pan structure for the cylinder block of an internal combustion engine for storing lubricating oil in the oil pan. A volume body submergible at least partly below the oil level for displacing a volume of oil when the oil is titled by displacement to one side in the oil pan as a result of the running condition of the motor vehicle having the engine with the oil pan structure, such as during turning, acceleration, deceleration or banking. The volume body has an inlet opening positioned near an allowable upper limit oil level for a predetermined maximum oil tilting condition for introducing into the volume body the lubricating oil which exceeds the allowable upper limit oil level. The oil pan structure also has an oil discharge passage from the lower portion of the volume body.

Abstract: A dual purpose automatic transmission oil pan (10) for covering transmission components (20,22) and containing a reservoir of oil in a sump portion (32). First and second drainback channels (34,36) extend to the sump portion (32) from spaced drain openings (16,18) of a closed-barrel transmission case (14) which permit free flow of oil to the sump portion (32). A magnetic filter (40) is secured to a ramp surface (44) at the confluence of the oil flows (A,B) from the first and second drainback channels (34,36) for removing ferrous contaminants from the oil. An inlet port (26) of a filter cartridge opens into an inlet port region (46) of the sump portion (32).

Abstract: An inverted flight valve between a scavenge pump intake and bottom and top drains of an oil sump in an engine of an aircraft having inverted flight capability, the valve including a valve body with a closed bore therein, a main port in the bore connected to the scavenge pump intake, first and second ports in the bore on opposite sides of the main port and connected to the bottom and top drains, a pair of valve seats in the bore between the main port and respective ones of the first and second ports, and a valve spool having lands at opposite ends slidable in the bore. The valve spool slides in the bore under the influence of gravity between a first position in non-inverted flight wherein one land seats on one of the valve seats to seal the top drain and a second position in inverted flight wherein the other land seats on the other valve seat to seal the bottom drain.

Abstract: Swirl vessel (14) located within oil tank (28) receives return oil (12) and delivers supply oil (10). The vessel is vented (50) to outside the oil tank. Surplus oil continuously drains (36) to the tank (10) interior. Make up oil from the tank is continuously ejected back into the swirl vessel (14) by various make up lines (46, 56, 68, 60) connected to the low pressure zone (49) of swirl inducing nozzles or injectors (18). The apparatus will operate at any attitude.

Abstract: An intake adapter is provided on an oil intake opening formed in a transaxle casing. A tightly sealed space in communication with an oil pump is provided in the lower part of the transaxle housing, formed in such a manner that it can be opened by the removal of a cover member which is secured to the transaxle casing in a freely mountable and removable manner. An oil strainer is housed in the tightly sealed space and an intake adapter is provided in communication with the tightly space and an oil sump. As a result the oil in the oil sump is taken into the intake opening of the oil strainer from the adapter, and foreign matter such as iron particles and the like is removed in a filter element and the filtered oil is supplied to an oil pump.

Abstract: A secondary oil system for a flight propulsion gas turbine engine having a vertical flight mode and a horizontal flight mode.

Abstract: The invention is directed to a transmission assembly comprising: a power output delivery end and a power input end; a pocket bearing operative between the power delivery end and the input end of the transmission; a lubricant containing housing remote from the pocket bearing in the transmission; a lubricant conduit system extending from said housing to said power input end of the transmission; a lubricant pump in said housing responsive to transmission operation for throwing lubricant outwardly under pressure within said housing; and a lubricant collector in said housing in the path of the lubricant thrown out by said pump, said collector directing the lubricant under pressure into said conduit system for delivery into said power input end of the transmission for supplying lubricant under pressure to reach said pocket bearing.

Abstract: In a high side scroll compressor, the motor is located above the scrolls and the oil sump and discharge gas are isolated from each other. The compressor can be used in an orientation that can range between vertical and at least 20.degree. of horizontal.

Abstract: A liquid scavenging pump system for scavenging oil or the like from a blower, an engine or the like. A casing is provided for housing the blower and defining an oil receiving cavity. A dual pump is mounted in the casing and has first and second pumps in communication with the casing cavity for conjoint rotation. A first inlet is provided from the casing cavity to the first pump, and a first outlet is provided from the first pump for delivering oil from the cavity to a pump or the like. A second inlet is provided from the casing cavity, remote from the first inlet, to the second pump. The second outlet from the second pump is in communication with the first inlet to the first pump to facilitate operating the pump at various attitudes. The dual pump is of the radial-vaned impeller type, but includes two sets of axially spaced impeller vanes separated by a common barrier and including a sleeve for mounting on a common drive shaft.

Abstract: Hermetically encapsulated rotary piston compressor with horizontally disposed, at least partially hollow crankshaft. The lubricating oil is sucked up by a dynamic vacuum created in a compressed gas line, out of an oil sump, by means of an oil suction pipe, and is conveyed together with the compressed gas into the hollow part of the crankshaft, which has inside the cylinder housing radial bores for oil supply to the moving parts of the compressor. According to the invention, the oil suction pipe is mounted for rotation about the axis of the crankshaft. Thereby the oil supply is maintained in any position resulting from any rotation of the compressor about the horizontal axis of its crankshaft.

Abstract: This invention relates to a suction housing of a lubricating-oil pump inserted in a lubricating-oil storage tank of an aggregate of vehicles having a distributing regulator with a mass that is guided in the direction of the accelerating forces affecting the vehicle for the regulating of valve openings. In order to obtain a suction housing with a low overall height and a simple arrangement of valves, the distributing regulator is developed to be plate-shaped in which case the valves are movably suspended at the sides of the distributing regulator.

Abstract: The scavenge oil system disclosing the invention has a scavenge oil outlet located at the bottom of a blower housing whereby lubricating oil can flow thereto by gravity in most attitudinal positions of the housing. When the blower housing is in an attitude that a portion thereof, such as the rear, is at a level lower than the scavenge oil outlet, a scavenge pump, having an impeller driven by the blower shaft, is rendered effectively operable by having an inlet beneath the level of oil at the rear of the housing and the scavenge pump pumps the oil to a higher level whereby it may flow from the housing by gravity through either the scavenge oil outlet of the housing or through other passages.

Abstract: The projectile weaving machine is provided with a torsion bar arrangement wherein oil is delivered to a central part of the torsion bar during operation. The oil circuit includes an oil entry in or near the torsion bar mounting and an annular chamber which is defined by a casing part about the torsion bar. A cooler is also provided in the oil circuit for cooling of the oil and the hydraulic brake assembly for the torsion bar is incorporated in the oil circuit.

Abstract: Disclosed is a receptacle for use in a portable power driven machine, which is arranged such that a flexible elastic hose at least partly provided with a coiled portion is allowed to stay within the receptacle by being drawn thereinto from a liquid take-out port, said hose being mounted with a filter at its free end; and the length of said hose allowed to stay within the receptacle is made greater than a distance covering from the liquid take-out port to a liquid inlet port of the receptacle.

Abstract: A speed-reduction transmission for a reciprocating piston aircraft engine, in which the oil-collecting space of the speed-reduction transmission housing arranged between the piston engine and the propeller is connected with the oil-collecting space of the crankcase of the engine by way of an overflow pipe; the upper part of the speed-reduction transmission housing is in communication with the air space of the crankcase by way of a vent pipe; the vent pipe and the overflow pipe are so arranged that their functions are interchanged during upside-down flights of the aircraft and the oil volume disposed in the bottom of the transmission housing remains constant.

Abstract: An improved cylinder head of internal combustion engine cooled by a so-called boiling liquid cooling system is disclosed, which has in its coolant jacket baffle members in order to inhibit the movement of liquid coolant within the jacket due to changes in attitude of the engine.

Abstract: Components, such as bearings, of gas turbine engines especially for aircraft are lubricated by a lubricant supply system including a main lubricant circulating circuit and an auxiliary lubricant circulating circuit for assuring a sufficient lubricant supply to the lubricating chamber or chambers under all operating conditions including those causing extremely rapid and locally differing displacements of the lubricant fluid in its supply tank. The main lubricant circulating circuit with its pumps, lubricating chamber or chambers, cooler, air separator and accumulator is operatively connected to the component being lubricated and is effective during normal and critical flight conditions. The auxiliary circulatory circuit with its lubricant supply tank and its pump is operatively connected to the main circulatory circuit for supplying lubricant into the main circuit.

Abstract: A lubrication system comprises a chamber adapted to contain a lubricant and a duct to convey lubricant from the chamber to the apparatus to be lubricated. A pipe is adapted to introduce air into the lubricant flowing through the duct so that for a given flow rate through the duct the rate at which lubricant is withdrawn from the chamber is reduced when compared with the rate when no air is introduced into the lubricant flow.

Abstract: In a lubrication system where the main oil supply to rotating components is susceptible to interrupted flow, an auxiliary system is implemented to temporarily meet the emergency lubrication needs. Provision is made by an auxiliary line to supply the components with a flow of lubricant from the existing hydraulic tank which is kept full and under pressure. This emergency flow is initiated by the opening of a valve in the auxiliary line and, on the other side of the components to be lubricated, by the closing of a check valve to prevent the further flow of emergency oil to the remaining engine components.

Abstract: A device for aspiration of lubricating oil from the supply of a combustion engine that may at times be moved out of a normal position into a different position, in particular an upside-down position, by means of a lubricant pump delivering the oil to the bearing surfaces of the engine.

Abstract: A lubricating device for internal combustion engines, especially for supplying oil to the points to be lubricated when the oil pan is in a very inclined position. The device comprises a pressure pump continuously withdrawing lubricating oil from a closed main chamber of an oil pan of the lubricating device and feeds the withdrawn oil to the points to be lubricated. The device also includes two open auxiliary oil chambers respectively located in the oil pan between the end walls of the oil pan and the major portion of the closed main chamber. The arrangement is such that oil withdrawn from the main chamber by the pressure pump also in inclined position of the oil pan automatically is replaced by oil from one of the auxiliary chambers.

Abstract: A lubricating and damping system for mechanisms which undergo large changes in orientation during operation is disclosed. The system includes a scavenge compartment built into the housing of the system and a plurality of scavenge pumps mounted within the housing having separate inlets so located that at least one of the inlets is submerged within the lubricating oil regardless of the orientation of the housing with the oil picked up by the scavenge pumps delivered through deaeration means and into a collection tank. A lubrication pump draws the oil from the collection tank and supplies it for lubrication of the mechanism and for the damping means of the system.

Abstract: A lubricating device for internal combustion engines, especially for supplying oil to the points to be lubricated when the oil pan is in a very inclined position. The device comprises a pressure pump continuously withdrawing lubricating oil from a closed main chamber of an oil pan of the lubricating device and feeds the withdrawn oil to the points to be lubricated. The device also includes two open auxiliary oil chambers respectively located in the oil pan between the end walls of the oil pan and the major portion of the closed main chamber. The arrangement is such that oil withdrawn from the main chamber by the pressure pump also in inclined position of the oil pan automatically is replaced by oil from one of the auxiliary chambers.