| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Gear Pump Bearing Dam | US15052362 | 2016-02-24 | US20160169224A1 | 2016-06-16 | Adam F. Czerwonka |
| The subject matter of this specification can be embodied in, among other things, a method that includes a gear pump includes gears having a gear root diameter and teeth having an addendum and pressure angle. A housing includes a fluid inlet and discharge, bearings configured to position the gear teeth in intermeshing contact across a fluid dam. The fluid dam includes a first face arranged at an angle to a split line, spaced apart from a center line at the split line a first distance towards the inlet, and extending from the first gear root diameter away from the center line to the first gear root diameter, and a second face arranged approximately perpendicular to the split line, spaced apart from the center line at the split line a second distance towards the outlet, and extending between the first gear root diameter and the second gear root diameter. | ||||||
| 182 | Gear pump bearing dam | US14090786 | 2013-11-26 | US09303644B2 | 2016-04-05 | Adam F. Czerwonka |
| The subject matter of this specification can be embodied in, among other things, a method that includes a gear pump includes gears having a gear root diameter and teeth having an addendum and pressure angle. A housing includes a fluid inlet and discharge, bearings configured to position the gear teeth in intermeshing contact across a fluid dam. The fluid dam includes a first face arranged at an angle to a split line, spaced apart from a center line at the split line a first distance towards the inlet, and extending from the first gear root diameter away from the center line to the first gear root diameter, and a second face arranged approximately perpendicular to the split line, spaced apart from the center line at the split line a second distance towards the outlet, and extending between the first gear root diameter and the second gear root diameter. | ||||||
| 183 | Internal gear pump with axial disk and intermediate piece | US14207971 | 2014-03-13 | US09303643B2 | 2016-04-05 | Rene Schepp; Norbert Alaze; Edgar Kurz |
| An internal gear pump includes a pinion and an annulus as a return pump in a hydraulic vehicle brake system. The internal gear pump further includes an axial disk and an intermediate piece. The intermediate piece is configured to be acted upon by an outlet pressure of the internal gear pump and press the axial disk against a side face of the pinion and of the annulus. | ||||||
| 184 | Rotary compressor | US14422686 | 2013-08-19 | US09284958B2 | 2016-03-15 | Yukihiro Inada; Takazou Sotojima; Yoshitaka Shibamoto; Kenichi Sata |
| A rotary compressor includes a cylinder with a cylinder chamber, a piston, a blade and a pair of bushes. The piston is movable-within the cylinder chamber. The blade is integrally formed with the cylinder or piston and penetrates a groove formed in the other to segment the cylinder chamber into high and low pressure chambers. The bushes are provided at the groove and sandwich the blade from both sides of the blade. At least one of the pair of bushes includes an oil supply passage formed from a blade-side sliding surface to a groove-side sliding surface, a blade-side oil reservoir formed on the blade-side sliding surface, and a groove-side oil reservoir on the groove-side sliding surface. Ends of the oil supply passage open to the blade-side and groove-side oil reservoirs. The groove-side oil reservoir being wider than the blade-side oil reservoir. | ||||||
| 185 | Scroll Compressor With Unloader Assembly | US14941827 | 2015-11-16 | US20160069348A1 | 2016-03-10 | Ajay UTPAT; James A. SCHAEFER |
| A compressor may include a shell, orbiting and non-orbiting scrolls, an unloader bushing assembly and a drive shaft. The unloader bushing assembly may include a drive bushing and a spring. The drive bushing includes an outer surface engaged with the orbiting scroll and may define an opening extending from a first bushing end to a second bushing end. The spring may include a body disposed within the opening of the drive bushing and may include first and second spring ends with at least a portion of the first spring end extending laterally from the body and overlapping the first bushing end. At least a portion of the second spring end may extend laterally from a body and overlap the second bushing end to secure the spring within the drive bushing. The drive shaft may include a crank pin disposed within the opening of the drive bushing and engaging the spring. | ||||||
| 186 | MULTIPLE CYLINDER ROTARY COMPRESSOR AND REFRIGERATION CYCLE APPARATUS | US14866409 | 2015-09-25 | US20160018136A1 | 2016-01-21 | Takuya HIRAYAMA; Isao KAWABE |
| The multiple cylinder rotary compressor includes: a compressor body including a hermetic case, the hermetic case housing inside a rotating shaft, an electric motor section, and a compression mechanism body; the compression mechanism body including: at least three compression mechanism sections arranged so as to stack with each other in an axial direction of the rotating shaft, partition plates each of which disposed between the corresponding adjacent compression mechanism sections, and a primary bearing and a secondary bearing supporting the rotating shaft on both end sides of the compression mechanism body along the axial direction of the rotating shaft; and the compression mechanism sections each of which including: a cylinder forming inside a cylinder chamber, an eccentric section provided to the rotating shaft, disposed in the cylinder chamber, a roller fitted to the eccentric section, rotating eccentrically within the cylinder chamber, and a blade dividing the inside of the cylinder chamber into two. At least one partition plate of the partition plates constitutes a partition plate bearing supporting the rotating shaft. | ||||||
| 187 | MAIN BEARING HOUSING, DYNAMIC SCROLL COMPONENT AND SCROLL COMPRESSOR | US14651527 | 2013-11-06 | US20150316093A1 | 2015-11-05 | Xiaogeng SU |
| Disclosed are a main bearing housing (40) for a scroll compressor, a dynamic scroll component (60) for the scroll compressor and the scroll compressor. The main bearing housing (40) comprises an anti-thrust surface (S1) for supporting the dynamic scroll component (60), an uneven construction (W) is formed on at least one portion of the anti-thrust surface (S1) to enable a lubricant to form a fluid dynamic pressure lubricating oil film between the main bearing housing (40) and the dynamic scroll component (60). The dynamic scroll component (60) comprises an anti-thrust surface (S2) for being supported by the main bearing housing (40), wherein an uneven construction (W) is formed on at least one portion of the anti-thrust surface (S2) to enable the lubricant to form a fluid dynamic pressure lubricating oil film between the main bearing housing (40) and the dynamic scroll component (60). The scroll compressor comprises at least one of the main bearing housing (40) and the dynamic scroll component (60). No matter whether the dynamic scroll component (60) can produce sufficient oblique circumferential translation or not, a good lubrication can be provided between the dynamic scroll component (60) and the main bearing housing (40). | ||||||
| 188 | Gear Machine with Eccentricity at the Gearwheels | US14699397 | 2015-04-29 | US20150308428A1 | 2015-10-29 | Guido Bredenfeld; Markus Stahl; Christoph Cholewa |
| A gear machine comprises a housing, at least two gearwheels positioned within the housing, and a bearing body defining a circular-cylindrical outer surface segment and a bearing bore. The at least two gearwheels configured to mesh in external engagement with each other. At least one of the gearwheels includes at least one bearing journal rotatably positioned within the bearing bore. The bearing body is positioned within the housing with the circular-cylindrical outer surface segment engaging a corresponding bearing surface defined on the inside of the housing. Each of the at least two gearwheels includes a plurality of tooth tips configured to engage a corresponding sealing surface defined on the inside of the housing. At least one segment of at least one of the sealing surface and the bearing bore is eccentric with respect to the circular-cylindrical outer surface segment of the bearing body. A method of production is also provided. | ||||||
| 189 | Gear pump | US13387412 | 2010-06-04 | US09163626B2 | 2015-10-20 | Josef Frank; Alexander Fuchs; Klaus Ortner |
| The invention relates to a gear pump (1) for conveying a fluid, said gear pump comprising a rotatably mounted, external geared toothed wheel (3) and an internal geared annular gear (2) that are meshed in order to generate a conveying action, and are arranged together with an electrically commutable stator (7) in a housing (5). The stator (7) extends concentrically around the annular gear (2) and interacts with the annular gear to generate an electromotive force. The annular gear (2) has a closed, homogeneous cylindrical surface and a plain bearing (13) is provided on the stator (7). | ||||||
| 190 | Compressor with pressure reduction groove formed in eccentric part | US14348047 | 2012-09-24 | US09115715B2 | 2015-08-25 | Naoto Tomioka; Takehiro Kanayama; Hiroki Kamiishida |
| A rotary compressor includes a drive mechanism having a drive shaft with an eccentric part, and a compression mechanism. The compression mechanism includes a tubular cylinder covering an outer periphery of the eccentric part, a piston arranged inside the cylinder and fitted onto the eccentric part, an upper end plate closing an upper end of the cylinder, and a lower end plate closing a lower end of the cylinder. A lower end surface of the eccentric part defines a thrust bearing surface slidably contacting an upper end surface of the lower end plate. The drive shaft has an oil path with lubrication oil circulating through the oil path. The eccentric part has a circumferentially extending pressure reduction groove opening at part of the thrust bearing surface close to an inner circumferential side to reduce a pressure of the lubrication oil supplied from the oil path to the pressure reduction groove. | ||||||
| 191 | Bush bearing fabricating method thereof and hermetic compressor having the same | US13149255 | 2011-05-31 | US09057365B2 | 2015-06-16 | Jeongmin Han; Hongseok Seo; Jaechan An; Keunju Lee; Jeonghun Kim |
| Disclosed are a bush bearing, a fabricating method thereof and a hermetic compressor having the same. A lubricant member of the bush bearing can be adhered onto a housing or press-fitted therein so as to remarkably increase the thickness of the lubricant member, whereby the bush bearing can be more resistant to abrasion, and upon applying the same to the compressor, abrasion of a crank shaft or the bush bearing can be reduced. | ||||||
| 192 | SCROLL COMPRESSOR | US14409739 | 2013-06-25 | US20150152731A1 | 2015-06-04 | Takuro Yamashita; Ken Suitou; Kazuhiro Kuroki; Satoru Egawa |
| In a motor-driven scroll compressor of the present invention, a double-sided sliding bearing is provided a space between a drive bush and a boss portion. The double-sided sliding bearing has a cylindrical outer sliding member that is provided in the boss portion, and a cylindrical inner sliding member that is provided in the bush portion. In an outer boundary zone of an inner circumferential surface of the boss portion and an outer circumferential surface of the outer sliding member, and an inner boundary zone of an inner circumferential surface of the inner sliding member and an outer circumferential surface of the bush portion, relative rotation is generated. The outer sliding member and the inner sliding member have different lengths in an axial direction, and thereby form a first and a second steps at both ends in the axial direction. | ||||||
| 193 | Press-fit bearing housing with large gas passages | US13428505 | 2012-03-23 | US09011105B2 | 2015-04-21 | Ronald J. Duppert; Xianghong Wang; Kurt William Robert Bessel; James W. Bush |
| A scroll compressor that includes a housing and scroll compressor bodies disposed in the housing. A motor is disposed within the housing and operably connected to a drive shaft for driving one of the scroll compressor bodies. The drive shaft is rotationally supported at one end by a crankcase which includes a bearing housing and a bearing. The crankcase includes a plurality of openings or gas passages passing through the crankcase, as well as a plurality of generally cylindrical sections positioned respectively between adjacent openings. The cylindrical sections define contact regions which can engage an inner periphery of the housing when the crankcase is mounted therein. | ||||||
| 194 | Scroll Type Fluid Machine | US14324804 | 2014-07-07 | US20150093276A1 | 2015-04-02 | Yoshiyuki KANEMOTO; Atsushi KANAIZUMI |
| A scroll type fluid machine, for improving a dimensional accuracy with easy working, includes a fixed scroll, an orbiting scroll arranged so as to oppose to the fixed scroll and executing an orbiting motion, a driving shaft driving the orbiting scroll, an eccentric shaft decentered from the driving shaft and connected to the orbiting scroll, and an eccentric bush connecting the driving shaft and the eccentric shaft to each other, in which the eccentric bush includes a main hole into which the driving shaft is fitted and an eccentric hole into which the eccentric shaft is fitted, and the eccentric hole is decentered with respect to the main hole. | ||||||
| 195 | Compressor and motor device thereof | US13352544 | 2012-01-18 | US08944784B2 | 2015-02-03 | Kun-Yi Liang; Shu-Er Huang; Yang-Guang Liu; Yueh-Ju Tang; Chi-Hsing Chen |
| A motor device includes a main body, an assembling body, a stator and a rotor. The main body includes a first bearing hole and a plurality of first connectors, and all distances between each of the first connectors and an axle of the first bearing hole are the same. The assembling body has a second bearing hole. The stator includes a passage and a plurality of second connectors, the second connectors are coupled to the first connectors respectively to have the stator assembled in the main body, and the passage and the first bearing hole are coaxial. The rotor is disposed inside the passage and two ends of the rotor are installed in the first bearing hole and the second bearing hole respectively. By having both the stator and the rotor positioned by the main body, a gap between the rotor and the stator can be maintained consistently. | ||||||
| 196 | INTERNAL-GEAR-TYPE OIL PUMP FOR VEHICLE | US14357366 | 2011-11-10 | US20140314608A1 | 2014-10-23 | Hiroyasu Honda |
| A vehicular internal-gear-type oil pump provided with (a) a circular pump chamber defined by a pump body and a pump cover, (b) an annular driven gear which has internal teeth, and an outer circumferential surface opposed to an inner circumferential surface defining said pump chamber, and which is rotatably supported by the inner circumferential surface defining said pump chamber, and (c) a drive gear which has external teeth engaging with the internal teeth of said driven gear and which is disposed rotatably about an axis of rotation thereof eccentric with respect to an axis of rotation of said driven gear, to rotate said driven gear, characterized in that wherein: said driven gear has a plurality of first dynamic pressure generating grooves formed in local areas of its outer circumferential surface; and each of said first dynamic pressure generating grooves has a depth in a radial direction of the driven gear, which depth is determined such that a gap ratio which is a ratio of a distance of a gap from a bottom of said first dynamic pressure generating groove to said inner circumferential surface to a distance of a gap from the outer circumferential surface of said driven gear to said inner circumferential surface is held within a predetermined range in which a dynamic pressure generated by said first dynamic pressure generating grooves and changing as a function of said gap ratio has a maximal value and in which a fluid friction coefficient generated on the basis of said first dynamic pressure generating grooves and changing as a function of said gap ratio has a minimal value. | ||||||
| 197 | COMPRESSOR BEARING ASSEMBLY | US14159526 | 2014-01-21 | US20140219850A1 | 2014-08-07 | Kirill M. IGNATIEV; Michael M. PEREVOZCHIKOV |
| A compressor is provided that may include a drive shaft, a compression mechanism, a bearing and an unloader. The drive shaft may include a main body and a crank pin extending from the main body. The compression mechanism may include first and second members. The crank pin may drivingly engage the second member and cause motion of the second member relative to the first member. The bearing may rotatably supporting the main body of the drive shaft. The unloader may rotatably engage the bearing and slidably engage the main body. | ||||||
| 198 | Scroll Compressor with Unloader Assembly | US13869567 | 2013-04-24 | US20140147324A1 | 2014-05-29 | Ajay Utpat; James A. Schaefer |
| A compressor may include a shell, orbiting and non-orbiting scrolls, an unloader bushing assembly and a drive shaft. The unloader bushing assembly may include a drive bushing and a spring. The drive bushing includes an outer surface engaged with the orbiting scroll and may define an opening extending from a first bushing end to a second bushing end. The spring may include a body disposed within the opening of the drive bushing and may include first and second spring ends with at least a portion of the first spring end extending laterally from the body and overlapping the first bushing end. At least a portion of the second spring end may extend laterally from a body and overlap the second bushing end to secure the spring within the drive bushing. The drive shaft may include a crank pin disposed within the opening of the drive bushing and engaging the spring. | ||||||
| 199 | ANTI-WEAR COATINGS FOR COMPRESSOR WEAR SURFACES | US13948653 | 2013-07-23 | US20140024563A1 | 2014-01-23 | Matthew J. Heidecker; Jean-Luc M. Caillat |
| Anti-wear surface coatings and methods for making them are provided. Such anti-wear surface coatings are particularly suitable for use in a compressor, such as a scroll or rotary compressor. A precursor powder material can be applied via spraying to a wear surface of a metal component of the scroll or rotary compressor. The precursor powder material comprises a powderized thermoplastic polymer (e.g., PEEK), a first lubricant particle (e.g., molybdenum disulfide (MoS2)) and a second lubricant particle (e.g., polytetrafluoroethylene (PTFE)), which is heated to form a substantially uniform coating covering the underlying metal component having a thickness of less than or equal to about 0.006 inches (about 152 μm). The anti-wear surface coating can be used on a face seal for a bellows-type shaft seal for compressors. | ||||||
| 200 | AIRCRAFT MAIN ENGINE FUEL PUMP WITH MULTIPLE GEAR STAGES USING SHARED JOURNALS | US13918243 | 2013-06-14 | US20140003987A1 | 2014-01-02 | Simon Martin-Dye |
| A multistage gear pump assembly includes first and second gear pumps that use common shafts and are axially separated by a fixed spacer within the housing. Pressurized bearings are provided at opposite axial ends of the first and second gear pumps. The second gear pump handles cruise and idle operations of the aircraft while the first gear pump stage assists in meeting higher demand modes of engine operation. Otherwise, the first gear pump is maintained at a minimal pressure to reduce energy consumption and still provide desired stability and eliminate issues associated with bearing oil whirl associated with prior known arrangements. When additional assistance is required, such as during takeoff, climb, or windmill relight, the first gear pump advantageously contributes to the increased pressure. | ||||||
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