Matches 251 - 300 out of 357 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
5277562 Scroll fluid machine and producing method for the same  
A scroll blade of a scroll fluid machine is formed of eutectic graphite cast iron in whose structure the average value of the largest eutectic shell is not more than one fourth of the height of a...
5257920 Scroll type compressor having a centered opening to a high pressure chamber  
So as to decrease fluctuations in gas pressures acting on the external surface of an end plate by decreasing the area ratio of a high pressure chamber disposed on the outside of the end plate of a...
5258046 Scroll-type fluid machinery with seals for the discharge port and wraps  
The present invention is intended to provide an oilless scroll-type compressor which can obtain a high compression efficiency with highly accurate sealability retained and particularly has such a...
5253489 Scroll type compressor with injection mechanism  
The present invention is directed to a scroll type compressor having an injection mechanism in which a part of the refrigerant flowing from the condenser is combined with the refrigerant in the...
5253989 Scroll fluid apparatus having a revolving scroll of separate members  
A scroll fluid apparatus has a revolving scroll and an auxiliary crank as a rotation prevention mechanism. The revolving scroll has a two-layer structure including an auxiliary member having an...
5249943 Scroll type compressor having recessed buffer means in a spiral wrap flat face  
A scroll type compressor which includes a fixed scroll and an orbiting scroll. Each scroll includes an end plate, a spiral element, at least one airtight compression chamber formed between the...
5242283 Scroll type compressor with elongated discharge port  
An improved scroll type compressor having enlarged fixed and orbiting spiral element tips with parallel flat faces is disclosed. A discharge port for discharging compressed fluids is positioned in...
5242282 Scroll compressor with a driving pin between scrolls and a sliding shaft bearing  
A scroll compressor incorporates an electric motor unit and a scroll compressor unit in a sealed container. The scroll compressor unit has a frame having a bearing at the center thereof, a first...
5232355 Scroll-type fluid apparatus having a labyrinth and oil seals surrounding a scroll shaft  
A scroll-type fluid apparatus includes a housing whose interior is divided by upper and lower partitioning walls into chambers one over another, i.e., a discharge chamber communicating with a...
5222882 Tip seal supporting structure for a scroll fluid device  
A tip seal supporting structure for use in a scroll fluid device includes intermeshing involute scroll elements mounted for relative orbital movement. Each of the scroll elements includes an...
5222883 Scroll type compressor having the center of the cylindrical shell displaced for compactness  
A relatively small diameter scroll type compressor is disclosed. The axial center of the compressor's shell is displaced from the involute center of the fixed spiral element in a direction towards...
5217358 Scroll type compressor with elongated discharging part  
In a scroll type compressor, a discharging port in a side plate of a stationary scroll member is formed in an elongated shape, such as an oval, so that a tip-seal element provided in the beginning...
5171141 Scroll compressor with distal ends of the wraps having sliding contact on curved portions  
A scroll compressor comprises a first end member having an axis, a second end member facing the first end member, relatively movable crosswise of the first end member and having an axis, a bearing...
5171140 Spiral displacement machine with angularly offset spiral vanes  
A spiral displacement machine has a displacer with a central disk and spiral vanes on both sides arranged to revolve eccentrically in a housing with spiral vanes to provide working chambers which...
5160253 Scroll type fluid apparatus having sealing member in recess forming suction space  
A scroll type fluid apparatus includes a casing having a flange member defining an annular recess therein, a drive shaft journalled on the casing and having a crank shaft formed at an inner end of...
5154591 Displacement machine employing a plurality of intermeshing spiral displacement bodies  
A displacement machine for compressible media includes a stationary housing, and a plurality of disks mounted for eccentric movement within the housing. Each of the disks has two symmetrically...
5151020 Scroll type compressor having gradually thinned wall thickness  
A scroll type compressor has a stationary scroll (1) and a movable scroll (2) rotating around the former in an orbital manner, while forming volume variable sealed spaces therebetween to compress a...
5145344 Scroll-type fluid machinery with offset passage to the exhaust port  
A scroll-type fluid machine has an orbiting scroll with involute wraps projecting axially on each of opposite sides, a pair of stationary scrolls each with involute wraps which mate with the wraps...
5131827 Fiber- and whisker-reinforced injection moldable resin composition for scroll compressor parts and method of manufacturing scroll compressor parts  
This invention relates to a resin composition for scroll compressor parts which comprises (A) about 40 to 70 parts by weight of at least one thermoplastic resin selected from the group...
5127809 Scroll compressor with reinforcing ribs on the orbiting scroll  
A scroll compressor comprising a housing, a frame, a fixed scroll and an orbiting scroll, arranged in the housing. Each of the fixed and orbiting scrolls have an end plate and a spiral wrap. A...
5125810 Scroll compressor with a stationary and orbiting member of different material  
A scroll compressor having an orbiting scroll member, a stationary scroll member and an Oldham's ring. The stationary scroll member is made of a material having a higher rigidity than the material...
5122040 Scroll member and method of forming a scroll member  
A scroll member is formed using a scroll profile cutter including a first portion generating a diameter equal to the desired width between scroll involute flanks, where the first portion also is of...
5106279 Orbiting scroll member assembly  
An orbiting scroll member of a hermetic scroll-type compressor, including a scroll plate, a drive plate, and connecting pins coupling the two plates together in a manner permitting axial separation...
5098265 Oil-free scroll fluid machine with projecting orbiting bearing boss  
An oil-free scroll fluid machine having a stationary scroll member, an orbiting scroll member opposing the stationary scroll member, an orbiting bearing boss provided on the orbiting scroll member...
5090878 Non-circular orbiting scroll for optimizing axial compliancy  
The axial forces acting upon the orbiting scroll of a scroll compressor during operation produce a resultant force which requires a varying, crank angle dependent radius for dynamic equilibrium....
5088906 Axially floating scroll member assembly  
A floating scroll assembly of a hermetic scroll-type compressor including, a fixed scroll frame, a fixed scroll plate, connecting pins coupling the plate and frame together in a manner permitting...
5082430 Rotating spiral compressor with reinforced spiral ribs  
A rotating sprial charger for compressible media is disclosed having a housing in which two symmetrically constructed displacer disks are located and rotated by drive elements. The two displacer...
5069605 Scroll fluid machine having a sealing member radially inwardly of a thrust bearing  
A scroll fluid machine, such as a scroll vacuum pump or a scroll compressor, is disclosed and is capable of discharging substantially oil-free fluid. The scroll fluid machine comprises a casing, a...
5059102 Fluid scroll machine with peripherally attached counter weights and reduced thickness scroll  
A fluid scroll machine whose movable scroll is balanced with a simple construction to decrease the weight and cost of the machine. Counterweights are attached to the peripheral portion of the...
5056336 Scroll apparatus with modified scroll profile  
In a scroll apparatus for fluid compression, two interfitting involute scroll elements with inner wall surfaces, each defined by an inner tip portion, an adjacent intermediate portion, an outwardly...
5051079 Two-piece scroll member with recessed welded joint  
A scroll-type hermetic compressor is disclosed including within a hermetically sealed housing a fixed scroll member assembly and an orbiting scroll member assembly. Each of the fixed and orbiting...
5044904 Multi-piece scroll members utilizing interconnecting pins and method of making same  
A scroll-type hermetic compressor is disclosed including within a hermetically sealed housing a fixed scroll member assembly, an orbiting scroll member assembly, a frame member, and a crankshaft....
5037279 Scroll fluid machine having wrap start portion with thick base and thin tip  
A scroll fluid machine in which a stationary scroll member and an orbiting scroll member each have an end plate and involute wrap on said end plate and mesh with each other. A winding-start portion...
5037278 Scroll compressor with heat insulating and soundproof cover in bottom disposed low pressure chamber  
The scroll gas compressor of the invention is so constructed that an enclosed container is partitioned by a fixed scroll member into a high pressure chamber and a low pressure chamber for...
5035589 Method and apparatus for reducing scroll compressor tip leakage  
Leakage in a scroll wrap compressor is reduced by providing a roughened scroll wrap tip surface at the gap between the tip and the cooperating base so as to increase the frictional resistance to...
5015163 Scroll type compressor with radially outer support for fixed end plate  
A scroll type compressor including a fixed scroll and an orbiting scroll is disclosed. The fixed scroll includes a first circular end plate from which a first spiral wrap extends and the orbiting...
4997348 Spiral rotary piston displacement machine with advanced inlet sealing line  
In a displacement machine for compressible media, having a delivery space (6) which is delimited by spiral-shaped peripheral walls (8, 9) extending perpendicularly from a side wall and leads from...
4990071 Scroll type fluid apparatus having two orbiting end plates linked together  
A scroll type supercharger including first and second orbital spiral elements is disclosed. The supercharger includes a first orbiting scroll having a first orbiting end plate from which a first...
4929160 Scroll compressor having exhausting pipe pressed into muffler chamber under pressure  
A muffler chamber being defined by a circumferential side wall member integrally and perpendicularly extending from the upper surface of a stationary scroll member and a cup-shaped upper wall...
4927341 Scroll machine with relieved flank surface  
A scroll compressor is disclosed in which either or both of the spiral wraps of the scroll members are reduced in thickness (i.e., cut away) adjacent to the inlet port defining the starting point...
4913635 Scroll type compressor with sealing structure for fixed scroll end plate  
A scroll type compressor includes a housing having an inner chamber and fluid inlet and outlet ports connected to the inner chamber. A fixed scroll is mounted within the housing and has a circular...
4904169 Scroll type compressing apparatus having strengthened scroll member  
A scroll type compressing apparatus includes stationary and movable scroll wraps each having a strengthened inner end wall surface portion, and minimizes an excessive compression of a gaseous fluid...
4904170 Scroll-type fluid machine with different terminal end wrap angles  
A scroll-type fluid machine comprises a stationary scroll member, an orbiting scroll member, a rotation-prevention mechanism for the orbiting scroll member, and a casting accommodating therein both...
4890987 Scroll type compressor with seal supporting anti-wear plate portions  
A scroll type compressor is disclosed which includes a housing with an inner chamber and fluid inlet and outlet ports connected to the inner chamber. A fixed scroll, which is mounted within the...
4886433 Displacement machine having spiral chamber and displacement member of increasing radial widths  
A displacement machine for fluids, having a displacement chamber, arranged in the manner of a groove in a fixed casing, running approximately spirally from an inlet to an outlet and spanning more...
4886434 Scroll compressor having discharge part communicating with two compression spaces simultaneously  
There is provided a scroll compressor in which a plurality of compression spaces are formed by fixed and orbiting scroll members, each pair of which compression spaces are formed symmetrically with...
4875839 Scroll member for use in a positive displacement device, and a method for manufacturing the same  
A scroll member comprising a metallic end plate having a spiroidal groove on one side thereof, and a through-hole communicating with the groove, and a resin wrap joined to the groove of the end...
4865531 Scroll compressor with super-charging tube  
In a scroll compressor for compressing gas by the relative orbital movement between first and second scrolls which combined with each other to form a compresson chamber therebetween and a...
4861244 Spiral displacement machine with concave circular arcs sealingly engaging circular steps  
In a displacement machine for compressible media on the spiral principle, the rotor disk (2) terminates radially flush with the displacement strips (3, 3'). So that the disk (2) can pass through...
4859159 Spiral compressor with setback portion on radially outer peripheral wall  
In the displacement machine for compressible media described in the specification, a stationary housing has two spiral displacement chambers and a spiral displacement body is engaged in each...
Matches 251 - 300 out of 357 < 1 2 3 4 5 6 7 8 >