Matches 151 - 200 out of 288 < 1 2 3 4 5 6 >
Match Document Document Title
4626180 Rotary compressor with spiral oil grooves for crankshaft  
A rotary compressor has a main bearing and a sub-bearing which are disposed on both sides of a cylinder, and a vane which is inserted at an eccentric crank pin portion of a crankshaft and is...
4623306 Scroll compressor with bearing lubrication means  
A scroll compressor, such as may be used for a refrigeration compressor, having improved lubrication of bearing parts and sliding surfaces is disclosed. In accordance with the invention, the...
4621993 Scroll-type positive fluid displacement apparatus with oil compartment plate  
A scroll-type pumping apparatus comprising a stationary scroll 1, an orbiting scroll 2 and a drive shaft 6 driving the orbiting scroll. A bottom end portion of the drive shaft is dipped in oil in a...
4606712 Self-pumping pump shaft seal  
A positive displacement pump is provided with an impeller drive shaft seal assembly to prevent material in the pumping chamber from reaching an adjacent drive shaft chamber. The seal assembly...
4569640 Device for high pressure compression  
A screw compressor discharges a fluid including a mixture of highly compressed gas and liquid into a separator reservoir, and a hydraulic motor is driven by at least a portion of the fluid. An...
4569645 Rotary compressor with heat exchanger  
A rotary compressor comprises a compression chamber defined by enclosing both ends of a cylinder with a main bearing and an end bearing; compression elements including a piston which is...
4568253 Horizontal shaft oil pump  
A horizontal shaft oil pump is provided for use in a compressor comprising an outer housing having an inlet, an outlet, an oil sump, and a crankcase mounted therein. The crankcase has a generally...
4561829 Rotary compressor with tapered valve ports for lubricating pump  
A horizontal compressor including an electric motor and a compressor element mounted in a case serving concurrently as an oil sump. The compressor element includes a cylinder, a shaft having a...
4557677 Valveless lubricant pump for a lateral rotary compressor  
A lateral rotary compressor comprises a compressing mechanism including a blade chamber for filling the lubricating oil, and a blade contained in the blade chamber and reciprocatingly movably...
4553913 Scroll-type hydraulic machine  
A scroll-type hydraulic machine having a first stationary scroll with a first scroll wrap, a first orbiting scroll with a second scroll wrap on one surface thereof interleaved with the first scroll...
4549861 Rotating positive displacement scroll apparatus with lubricating pump  
A positive displacement machine including first and second scrolls having interfitting vanes adapted to define at least one traveling pocket. One of the scrolls has a central outlet and a hollow...
4548560 Seal system in rotary engine  
A seal system in a rotary engine includes apex seals held against an inner peripheral wall surface of a rotor housing, seal rings disposed between the apex seals and a side wall surface of the...
4544338 Oil feeder means for use in a horizontal type rotary compressor  
A horizontal type rotary compressor including a compression element having a cylinder, a shaft having a crank thereon, a pair of side plates concurrently serving both as bearings of the shaft and...
4543047 Rotary compressor  
A horizontal type rotary compressor includes a lubricant distribution system which does not require a check valve for preventing the return of lubricant from the frictional bearing surfaces to the...
4527965 Lubrication means for cyclically discharging lubricant into a fluid working chamber  
The invention comprises an arrangement, for use particularly in connection with a rotary displacement machine such as an air compressor, in which the fluid (air) compressed in the machine is...
4526523 Oil pressure control system  
The system comprises an arrangement for supplying sealing and lubrication oil to a gas compressor in an embodiment of the invention in which the oil pump is relieved of high pressure demand during...
4525129 Oil-sealed vacuum pump  
An oil-sealed vacuum pump comprises an oil circuit for supplying a pump chamber and bearings of the vacuum pump with oil. The oil circuit includes first and second branch conduits leading to the...
4497618 Combined vacuum pump and power steering pump assembly  
A combined power steering pump and vacuum pump assembly is disclosed wherein a vented reservoir is connected to receive the discharge of the vacuum pump as well as supply the fluid for circulation...
4488855 Main bearing lubrication system for scroll machine  
A system for lubricating the main drive shaft bearings in a scroll compressor enclosed within a hermetic shell. The drive shaft and its main bearings are supported in a frame that defines first and...
4483667 Vacuum pump and method of operating the same  
A vacuum pump comprises a suction nipple valve including a cylinder, a piston slidably received therein and a movable valve closing member operatively connected to the piston. The vacuum pump...
4478562 Oil lubrication of vacuum pump with pulsating oil feed  
A method and apparatus for lubricating a vacuum pump, preferably a rotary vane vacuum pump, wherein the pump rotor is mounted on a hollow drive shaft continuously fed with a lubricating oil stream...
4473343 Bearing device for scroll-type compressor  
In a scroll-type compressor, the sum of pressure receiving areas of the upper end surfaces of crank portion of a crankshaft and the upper end surface of a balance weight is made substantially equal...
4472121 Horizontal rotary compressor with oil forced by gas discharge into crankshaft bore  
A horizontal rotary type compressor having a rotary compression unit hermetically contained in a closed shell has its lubricating parts effectively lubricated by lubricant oil being fed to the...
4463718 Lubricant metering system for rotary internal combustion engine  
The lubricant metering system for a rotary internal combustion engine has a lubricant metering device connected to the engine to communicate with the working chambers of the engine during the...
4456437 Refrigerant compressor  
A refrigerant compressor for use in refrigerators, air conditioners, heat pumps or the like apparatus. The refrigerant pump has a casing which encases a combination of a compressor and an electric...
4439109 Pump for pumping a liquid containing solid contaminants  
A pump for pumping a liquid containing solid contaminants, which pump comprises rotatable pumping means for pumping the liquid from a pump inlet to a pump outlet, a filter for filtering the liquid,...
4391571 Pumping apparatus for pumping liquids such as slurrys  
A pumping apparatus for pumping liquids such as slurrys comprises a pumping cylinder/piston (6,8) driven by the piston/cylinder (16,18) of an operating device, the supply of fluid under pressure...
4385875 Rotary compressor with fluid diode check value for lubricating pump  
In a rotary compressor unit including a compressor comprising a rotor rotatable in a cylinder, a blade in contact with an outer surface of the rotor and reciprocated thereby in a radial direction...
4365941 Scroll compressor provided with means for pressing an orbiting scroll member against a stationary scroll member and self-cooling means  
A scroll compressor for compressing a gas to a high pressure or for use in a refrigeration system such as a refrigerator, freezer, air conditioner or the like, is provided. In the compressor, a...
4343599 Scroll-type positive fluid displacement apparatus having lubricating oil circulating system  
A scroll-type compressor constituted by a stationary scroll and a revolving scroll, and an electric motor for causing a revolving motion of the revolving scroll are disposed in a closed container....
4340339 Scroll type compressor with oil passageways through the housing  
In a scroll type compressor unit including two interfitting fixed and orbiting scroll members in the compressor housing, a crank shaft projecting from the interior of the compressor housing and...
4293289 Lubricating means for rotary piston engines with pressure and temperature responsive valve means in the eccentric shaft  
A rotary piston engine including a lubricating system having an oil passage extending axially through an eccentric shaft for supplying lubricating oil from an oil pump to bearing portions. A...
4276005 Oil flow metering structure for oil sealed mechanical vacuum vane pump  
A mechanical rotary vane vacuum pump has high and low vacuum stages for a pumped gas. Each stage includes a rotor for vanes cyclically driven about a common axis that is eccentric to a cylinder of...
4237848 Rotary-piston internal combustion engine  
The rotary-piston internal combustion engine comprises a trochoidal working chamber with a vertical major axis, a rotor shaft mechanically coupled to a generator and a water pump mounted on the...
4129405 Scroll-type liquid pump with transfer passages in end plate  
Scroll apparatus for pumping liquids wherein recessed liquid transfer passage means are provided in the end plates of the scroll members. The transfer passage means may be inner passages within the...
4078529 Rotary engine  
A radial engine with a rotating cylinder block is disclosed which is capable of high rates of rotation although operating on the two stroke cycle. An intake air compressor and an exhaust driven...
4063855 Compressor capacity and lubrication control system  
A compressor capacity control and lubrication system including a nonmodulating capacity regulator for an oil flooded gas compressor such as a rotary screw compressor. The system includes an on-off...
4037999 Liquid-cooled rotary piston internal combustion engine with housing  
Liquid-cooled rotary piston internal combustion engine with a housing consisting of at least one annular shell with interior guideway and two parallel end pieces, and bounding an interior space....
4035114 Method for reducing power consumption in a liquid-cooled rotary compressor by treating the liquid  
A method for reducing power consumption in a liquid-cooled type rotary compressor wherein a mixture of gas compressed in at least one compression chamber and liquid for cooling, lubricating and...
4008987 Combined timing gear and pump for rotary mechanisms  
A rotary mechanism including a housing defining an operating chamber, a shaft journalled in the housing and having an eccentric within the chamber, a rotor within the chamber and journalled on the...
3990818 Lubrication system for rotary piston mechanisms  
The lubrication system for rotary mechanisms of the Wankel type, having a housing in which a rotor planetates, comprises an elongated, shallow trough in the inner peripheral surface of the trochoid...
3986799 Fluid-cooled, scroll-type, positive fluid displacement apparatus  
Cooling means are provided for the stationary and orbiting scroll members of scroll-type apparatus. These cooling means comprise fluid coolant channels in the end plates and in the involute wraps...
3976404 Lubrication of compression seals in rotary engines  
An improved means for lubricating the compression seals of rotary engines. The system is provided in a typical rotary engine having a housing with a main shaft extending through the housing and a...
3936249 Rotary compressor of oil cooling type with appropriate oil discharge circuit  
In rotary compressor of oil cooling type comprising; an unloader, a housing including a rotor chamber therein connected to said unloader, rotors housed within said housing, a reservoir for...
3922114 Hermetic rotary helical screw compressor with improved oil management  
A two part, inner, cylindrical housing concentrically carried within a sealed outer enclosure forms with the outer enclosure, a first sealed chamber and within itself, an upper chamber carrying the...
3912044 Lubricating system for rotary piston compressor  
A lubricating system for rotary piston compressors, in which the lubricating oil passes from a storage container in predetermined quantities to the lubricating points. The compression chamber of...
3911870 Upper crankshaft bearing lubrication  
Disclosed herein is an engine having upper and lower crankshaft bearings and a chamber subject to cyclical pressure variation in response to engine operation, together with a conduit communicating...
3885897 Lubricating device for radial sealing strips of inner-axial rotary piston engines of trochoidal construction with sliding engagement  
This invention relates to a lubricating device for radial sealing strips of an inner-axial rotary piston engine of trochoidal construction with sliding engagement comprising lubricant groove means...
3877851 Rotary compressor with integrally connected, diametrically aligned vanes  
In a compressor of a movable vane type comprising a cylinder, a hollow rotor eccentrically positioned within the cylinders bore and arranged so as to be always inscribed with the cylinder bore...
3877853 Vane controlling system for rotary sliding vane compressor  
An oil pump feeds pressurized oil into the bottom of the vane-retaining slots of the rotor of a rotary sliding vane compressor in order to urge the vanes out of the slots and into sealed contact...
Matches 151 - 200 out of 288 < 1 2 3 4 5 6 >