US20050196306A1 - Automotive motor-compressor assembly - Google Patents
Automotive motor-compressor assembly Download PDFInfo
- Publication number
- US20050196306A1 US20050196306A1 US11/069,057 US6905705A US2005196306A1 US 20050196306 A1 US20050196306 A1 US 20050196306A1 US 6905705 A US6905705 A US 6905705A US 2005196306 A1 US2005196306 A1 US 2005196306A1
- Authority
- US
- United States
- Prior art keywords
- housing
- motor
- compressor
- connecting member
- compressor assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
- F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
- F04D29/444—Bladed diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/32—Engines with pumps other than of reciprocating-piston type
- F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
- F02B33/40—Engines with pumps other than of reciprocating-piston type with rotary pumps of non-positive-displacement type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2250/00—Geometry
- F05D2250/50—Inlet or outlet
- F05D2250/52—Outlet
Definitions
- the present invention relates to an automotive motor-compressor assembly, in particular for supplying compressed air to fuel-cell systems.
- Automotive motor-compressor assemblies which substantially comprise an electric motor; and a centrifugal compressor having a housing fixed to and supported by the electric motor housing, and one or more impellers connected to an output shaft of the motor. More specifically, at one axial end, the electric motor housing has a connecting flange, an outer circumferential surface of which supports and is fitted with the compressor housing.
- the compressor housing defines an intake at the opposite axial end to the connecting flange, and a volute supply manifold with the flange.
- the impeller comprises a number of blades fitted to a portion of the output shaft of the electric motor projecting inside the compressor housing.
- the outer circumferential surface of the connecting flange provides for locating the compressor housing, so the connecting flange involves a relatively high degree of dimensional precision to reduce the gap between the inner contour of the housing and the outer contour of the impeller, and so enhance the overall efficiency of the compressor.
- the circular surface, facing the compressor housing, of the connecting flange also provides for guiding the air supply, so that each compressor size calls for a connecting flange of specific shape and size.
- the above motor-compressor assembly configuration calls for changing the entire connecting flange, which involves complex machining work, especially in view of the close dimensional tolerances of the circumferential surface by which the compressor is located.
- an automotive motor-compressor assembly comprising:
- FIG. 1 is a partly sectioned side view of the motor compressor assembly.
- Number 1 in the accompanying drawing indicates as a whole an automotive motor-compressor assembly, in particular for supplying compressed air to fuel-cell systems.
- Assembly 1 has an axis A, and substantially comprises a known electric motor 2 illustrated only insofar as necessary for a clear understanding of the present invention; a compressor 3 —in the example shown, a centrifugal compressor; and connecting means 4 for connecting electric motor 2 and compressor 3 .
- electric motor 2 More specifically, of electric motor 2 are shown only a casing 2 a , and an output shaft 7 extending partly inside casing 2 a and partly outwards from one side of casing 2 a.
- Compressor 3 comprises a housing 5 ; and an impeller 6 having a number of blades 12 fixed releasably to the portion of output shaft 7 projecting from casing 2 a of electric motor 2 .
- Housing 5 defines a through axial cavity, and comprises an axial end portion 5 a fixed by connecting means 4 to casing 2 a of electric motor 2 ; an opposite axial end portion 5 b defining an intake; and an intermediate portion 5 c defining a compression conduit 8 with impeller 6 , and a radially outer compressed-air supply manifold 9 .
- axial end portion 5 b has the smallest diameter, and is connected to end portion 5 a , defining the largest diameter, by successive sections varying in diameter and including a radial first portion 5 e , a volute-shaped second portion 5 f , and a radial third portion 5 g.
- Supply manifold 9 is therefore defined by a radial initial portion 19 defined between radial portion 5 e of intermediate portion 5 c and connecting means 4 (as described in more detail later on), and by a volute-shaped final portion 20 defined entirely by portion 5 f of intermediate portion 5 c.
- Connecting means 4 comprise a first plate 10 fixed coaxially to casing 2 a of motor 2 , on the side from which shaft 7 projects, and having an outer circumferential surface 10 a for locating end portion 5 a ; and a second plate 11 retained coaxially with casing 2 a , located on the opposite side of plate 10 to electric motor 2 , and defining, with intermediate portion 5 c of housing 5 , initial portion 19 of supply manifold 9 .
- plate 10 is connected to casing 2 a by releasable fastening means defined, in the example shown, by screws 21 , the heads of which are housed inside respective dead seats 18 formed in plate 11 .
- Plate 11 therefore also provides for preventing the drag induced by screws 21 from interfering with the compressed-air flow.
- Plate 11 is sandwiched axially between plate 10 and housing 5 , and preferably comprises a number of air-guide blades 25 . More specifically, housing 5 is fixed at end portion 5 a to the radially outermost portion of plate 10 by means of releasable fastening means defined, in the example shown, by bolts 22 , and cooperates, by means of a shoulder formed in volute-shaped portion 5 f , with plate 11 to keep it in axial contact with plate 10 . A sealing ring 26 is interposed between said shoulder and plate 11 to fluidtight seal initial portion 19 of supply manifold 9 .
- end portion 5 a of housing 5 is fitted in rotary manner to circumferential surface 10 a of plate 10 , and is locked angularly to plate 10 by bolts 22 .
- the radially outermost portion of plate 10 is gripped axially, by means of bolts 22 , between radial portion 5 g of housing 5 and two half-ring-shaped stop members 24 .
- Both plates 10 , 11 have an axial hole through which to insert shaft 7 projecting from electric motor 2 , and both are centred on a lateral collar 23 of electric motor 2 .
- portion 19 of supply manifold 9 is defined between radial portion 5 e of housing 5 and a surface 16 of plate 11 , which is opposite the surface contacting plate 10 and is provided with blades 25 .
- motor-compressor assembly 1 The advantages of motor-compressor assembly 1 according to the present invention will be clear from the foregoing description.
- electric motor 2 can be fitted with impellers 6 and housings 5 of different shapes and sizes, without having to remake plates 10 , which are dimensionally much more precise and therefore more expensive.
- fastening housing 5 to electric motor by means of bolts 22 and stop members 24 leaves housing 5 free to rotate about axis A of electric motor 2 . Once, the desired angular position is reached, bolts 22 are tightened, thus simplifying the fastening of housing 5 to electric motor 2 .
- motor-compressor assembly 1 as described and illustrated herein without, however, departing from the scope of the accompanying Claims.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Compressor (AREA)
- Motor Or Generator Cooling System (AREA)
- Fuel Cell (AREA)
Abstract
There is described an automotive motor-compressor assembly (1) having an electric motor (2); a compressor (3) through which a work fluid flows, and having a housing (5) and an impeller (6); and connecting means (4) for releasably fixing the compressor (3) to the motor (2), and having a first connecting member (10) defining a locating surface (10 a) for a connecting portion (5 a) of the housing (5), and a second connecting member (11) defining at least one guide surface (16) for guiding the work fluid inside the housing (5). (Attached drawing)
Description
- 1. Field of the Invention
- The present invention relates to an automotive motor-compressor assembly, in particular for supplying compressed air to fuel-cell systems.
- 2. Description of Related Art
- Automotive motor-compressor assemblies are known which substantially comprise an electric motor; and a centrifugal compressor having a housing fixed to and supported by the electric motor housing, and one or more impellers connected to an output shaft of the motor. More specifically, at one axial end, the electric motor housing has a connecting flange, an outer circumferential surface of which supports and is fitted with the compressor housing.
- More specifically, the compressor housing defines an intake at the opposite axial end to the connecting flange, and a volute supply manifold with the flange. The impeller comprises a number of blades fitted to a portion of the output shaft of the electric motor projecting inside the compressor housing.
- In a normal operating cycle, air flows from the intake to the supply manifold along a path defined by the inner contour of the compressor housing and by the outer contour of the impeller rotated by the electric motor shaft.
- The outer circumferential surface of the connecting flange provides for locating the compressor housing, so the connecting flange involves a relatively high degree of dimensional precision to reduce the gap between the inner contour of the housing and the outer contour of the impeller, and so enhance the overall efficiency of the compressor.
- The circular surface, facing the compressor housing, of the connecting flange also provides for guiding the air supply, so that each compressor size calls for a connecting flange of specific shape and size.
- When frequent changes are made to the size of the turboblowers fitted to the same type of electric motor, either for test reasons or to permit a certain amount of flexibility in the equipment of different types of vehicles, the above motor-compressor assembly configuration calls for changing the entire connecting flange, which involves complex machining work, especially in view of the close dimensional tolerances of the circumferential surface by which the compressor is located.
- It is an object of the present invention to provide an automotive motor-compressor assembly designed to eliminate the aforementioned drawback typically associated with known motor-compressor assemblies.
- According to the present invention, there is provided an automotive motor-compressor assembly comprising:
-
- an electric motor;
- a compressor through which a work fluid flows, and having a housing and an impeller; and
- connecting means for releasably fixing said compressor to said motor, and comprising at least a first connecting member defining a locating surface for a connecting portion of said housing;
characterized in that said connecting means comprise a second connecting member defining at least one guide surface for guiding the work fluid inside the housing.
- For a clearer understanding of the present invention, a preferred non-limiting embodiment of a motor-compressor assembly will be described by way of example with reference to the accompanying drawing.
-
FIG. 1 is a partly sectioned side view of the motor compressor assembly. -
Number 1 in the accompanying drawing indicates as a whole an automotive motor-compressor assembly, in particular for supplying compressed air to fuel-cell systems. -
Assembly 1 has an axis A, and substantially comprises a knownelectric motor 2 illustrated only insofar as necessary for a clear understanding of the present invention; acompressor 3—in the example shown, a centrifugal compressor; and connectingmeans 4 for connectingelectric motor 2 andcompressor 3. - More specifically, of
electric motor 2 are shown only acasing 2 a, and anoutput shaft 7 extending partly insidecasing 2 a and partly outwards from one side ofcasing 2 a. -
Compressor 3 comprises ahousing 5; and animpeller 6 having a number ofblades 12 fixed releasably to the portion ofoutput shaft 7 projecting fromcasing 2 a ofelectric motor 2.Housing 5 defines a through axial cavity, and comprises anaxial end portion 5 a fixed by connectingmeans 4 tocasing 2 a ofelectric motor 2; an oppositeaxial end portion 5 b defining an intake; and anintermediate portion 5 c defining acompression conduit 8 withimpeller 6, and a radially outer compressed-air supply manifold 9. - More specifically,
axial end portion 5 b has the smallest diameter, and is connected toend portion 5 a, defining the largest diameter, by successive sections varying in diameter and including a radialfirst portion 5 e, a volute-shapedsecond portion 5 f, and a radialthird portion 5 g. - Supply manifold 9 is therefore defined by a radial
initial portion 19 defined betweenradial portion 5 e ofintermediate portion 5 c and connecting means 4 (as described in more detail later on), and by a volute-shapedfinal portion 20 defined entirely byportion 5 f ofintermediate portion 5 c. - Connecting means 4 comprise a
first plate 10 fixed coaxially tocasing 2 a ofmotor 2, on the side from whichshaft 7 projects, and having an outercircumferential surface 10 a for locatingend portion 5 a; and asecond plate 11 retained coaxially withcasing 2 a, located on the opposite side ofplate 10 toelectric motor 2, and defining, withintermediate portion 5 c ofhousing 5,initial portion 19 of supply manifold 9. - More specifically,
plate 10 is connected tocasing 2 a by releasable fastening means defined, in the example shown, byscrews 21, the heads of which are housed inside respectivedead seats 18 formed inplate 11.Plate 11 therefore also provides for preventing the drag induced byscrews 21 from interfering with the compressed-air flow. -
Plate 11 is sandwiched axially betweenplate 10 andhousing 5, and preferably comprises a number of air-guide blades 25. More specifically,housing 5 is fixed atend portion 5 a to the radially outermost portion ofplate 10 by means of releasable fastening means defined, in the example shown, bybolts 22, and cooperates, by means of a shoulder formed in volute-shaped portion 5 f, withplate 11 to keep it in axial contact withplate 10. Asealing ring 26 is interposed between said shoulder andplate 11 to fluidtight sealinitial portion 19 of supply manifold 9. - At assembly,
end portion 5 a ofhousing 5 is fitted in rotary manner tocircumferential surface 10 a ofplate 10, and is locked angularly toplate 10 bybolts 22. - More specifically, the radially outermost portion of
plate 10 is gripped axially, by means ofbolts 22, betweenradial portion 5 g ofhousing 5 and two half-ring-shaped stop members 24. - Both
plates shaft 7 projecting fromelectric motor 2, and both are centred on alateral collar 23 ofelectric motor 2. - As shown clearly in the attached drawing,
portion 19 of supply manifold 9 is defined betweenradial portion 5 e ofhousing 5 and asurface 16 ofplate 11, which is opposite thesurface contacting plate 10 and is provided withblades 25. - The advantages of motor-
compressor assembly 1 according to the present invention will be clear from the foregoing description. - In particular, by simply modifying
plate 11,electric motor 2 can be fitted withimpellers 6 andhousings 5 of different shapes and sizes, without having to remakeplates 10, which are dimensionally much more precise and therefore more expensive. - Moreover, fastening
housing 5 to electric motor by means ofbolts 22 and stopmembers 24leaves housing 5 free to rotate about axis A ofelectric motor 2. Once, the desired angular position is reached,bolts 22 are tightened, thus simplifying the fastening ofhousing 5 toelectric motor 2. - Clearly, changes may be made to motor-
compressor assembly 1 as described and illustrated herein without, however, departing from the scope of the accompanying Claims.
Claims (5)
1) An automotive motor-compressor assembly (1) comprising:
an electric motor (2);
at least one compressor (3) through which a work fluid flows, and having a housing (5) and an impeller (6); and
connecting means (4) for releasably fixing said compressor (3) to said motor (2), and comprising at least a first connecting member (10) defining a locating surface (10 a) for a connecting portion (5 a) of said housing (5);
Wherein said connecting means (4) comprise a second connecting member (11) defining at least one guide surface (16) for guiding the work fluid inside the housing (5):
2) A motor-compressor assembly as claimed in claim 1 , characterized in that said second connecting member (11) is sandwiched axially between said first connecting member (10) and said housing (5).
3) A motor-compressor assembly as claimed in claim 2 , characterized by comprising releasable first fastening means (21) for fastening said first connecting member (10) to said motor (2); said second connecting member (11) defining at least one seat (18) for a respective projecting portion of said releasable first fastening means (21).
4) A motor-compressor assembly as claimed in claim 1 , characterized in that said connecting portion (5 a) of said housing (5) is fitted in rotary manner to said locating surface (10 a) of said first connecting member (10); second fastening means (22) being provided to lock said housing (5) to said first connecting member (10) in the desired angular position.
5) A motor-compressor assembly as claimed in claim 1 , characterized in that said second connecting member (11) has blades (25).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04425144A EP1571343B1 (en) | 2004-03-05 | 2004-03-05 | Automotive motor-compressor assembly |
EP04425144.5 | 2004-03-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050196306A1 true US20050196306A1 (en) | 2005-09-08 |
Family
ID=34746229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/069,057 Abandoned US20050196306A1 (en) | 2004-03-05 | 2005-03-02 | Automotive motor-compressor assembly |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050196306A1 (en) |
EP (1) | EP1571343B1 (en) |
JP (1) | JP2005248963A (en) |
AT (1) | ATE327438T1 (en) |
DE (1) | DE602004000976T2 (en) |
ES (1) | ES2264107T3 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090183724A1 (en) * | 2008-01-22 | 2009-07-23 | Seiichi Hirano | Cooking device |
US20120014819A1 (en) * | 2010-07-14 | 2012-01-19 | Aisin Seiki Kabushiki Kaisha | Electric pump |
US20160090993A1 (en) * | 2014-09-26 | 2016-03-31 | Panasonic Intellectual Property Management Co., Ltd. | Centrifugal air blower |
US9360015B2 (en) | 2012-07-16 | 2016-06-07 | Magna Powertrain Of America, Inc. | Submerged rotor electric water pump with structural wetsleeve |
US20160169236A1 (en) * | 2013-07-18 | 2016-06-16 | Daikin Industries, Ltd. | Turbo compressor and turbo refrigerator |
US10808697B2 (en) * | 2016-07-20 | 2020-10-20 | Stackpole International Engineered Products, Ltd. | Pump assembly having integrated controller and motor with internal active cooling |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011109535B4 (en) * | 2011-08-05 | 2013-08-08 | Sew-Eurodrive Gmbh & Co. Kg | Fan arrangement and engine |
DE102013109222A1 (en) * | 2013-08-26 | 2015-02-26 | Abb Turbo Systems Ag | Device for a turbocharger |
FR3059055B1 (en) * | 2016-11-18 | 2020-10-09 | Valeo Systemes De Controle Moteur | ELECTRIC COMPRESSOR WITH GASKET FOR VOLUTE |
DE102019204595B4 (en) * | 2019-04-01 | 2020-10-15 | Efficient Energy Gmbh | Easily dismantled heat pump and method of manufacturing a heat pump |
DE102022213437A1 (en) | 2022-12-12 | 2024-06-13 | Robert Bosch Gesellschaft mit beschränkter Haftung | Coupling part for blower of a fuel cell device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4767285A (en) * | 1986-04-14 | 1988-08-30 | Hitachi, Ltd. | Electric blower |
US5638796A (en) * | 1994-06-03 | 1997-06-17 | Adams, Iii; Herbert L. | Electric supercharger |
US6375438B1 (en) * | 1999-03-15 | 2002-04-23 | Samjin Co., Ltd. | Two-stage centrifugal compressor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5296769A (en) * | 1992-01-24 | 1994-03-22 | Electrolux Corporation | Air guide assembly for an electric motor and methods of making |
DE19605742A1 (en) * | 1996-02-16 | 1997-08-21 | Vorwerk Co Interholding | Electric motor with impeller wheel |
-
2004
- 2004-03-05 ES ES04425144T patent/ES2264107T3/en not_active Expired - Lifetime
- 2004-03-05 EP EP04425144A patent/EP1571343B1/en not_active Expired - Lifetime
- 2004-03-05 DE DE602004000976T patent/DE602004000976T2/en not_active Expired - Lifetime
- 2004-03-05 AT AT04425144T patent/ATE327438T1/en not_active IP Right Cessation
-
2005
- 2005-03-02 US US11/069,057 patent/US20050196306A1/en not_active Abandoned
- 2005-03-07 JP JP2005063014A patent/JP2005248963A/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4767285A (en) * | 1986-04-14 | 1988-08-30 | Hitachi, Ltd. | Electric blower |
US5638796A (en) * | 1994-06-03 | 1997-06-17 | Adams, Iii; Herbert L. | Electric supercharger |
US6375438B1 (en) * | 1999-03-15 | 2002-04-23 | Samjin Co., Ltd. | Two-stage centrifugal compressor |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090183724A1 (en) * | 2008-01-22 | 2009-07-23 | Seiichi Hirano | Cooking device |
US7992552B2 (en) * | 2008-01-22 | 2011-08-09 | Sharp Kabushiki Kaisha | Cooking device |
US20120014819A1 (en) * | 2010-07-14 | 2012-01-19 | Aisin Seiki Kabushiki Kaisha | Electric pump |
US8696333B2 (en) * | 2010-07-14 | 2014-04-15 | Aisin Seiki Kabushiki Kaisha | Electric pump |
US9360015B2 (en) | 2012-07-16 | 2016-06-07 | Magna Powertrain Of America, Inc. | Submerged rotor electric water pump with structural wetsleeve |
US20160169236A1 (en) * | 2013-07-18 | 2016-06-16 | Daikin Industries, Ltd. | Turbo compressor and turbo refrigerator |
EP3023645A4 (en) * | 2013-07-18 | 2017-03-22 | Daikin Industries, Ltd. | Turbo compressor and turbo refrigerator |
US9945384B2 (en) * | 2013-07-18 | 2018-04-17 | Daikin Industries, Ltd. | Turbo compressor and turbo refrigerator |
US20160090993A1 (en) * | 2014-09-26 | 2016-03-31 | Panasonic Intellectual Property Management Co., Ltd. | Centrifugal air blower |
US9745998B2 (en) * | 2014-09-26 | 2017-08-29 | Panasonic Intellectual Property Management Co., Ltd. | Centrifugal air blower |
US10808697B2 (en) * | 2016-07-20 | 2020-10-20 | Stackpole International Engineered Products, Ltd. | Pump assembly having integrated controller and motor with internal active cooling |
Also Published As
Publication number | Publication date |
---|---|
JP2005248963A (en) | 2005-09-15 |
ES2264107T3 (en) | 2006-12-16 |
DE602004000976T2 (en) | 2007-05-03 |
EP1571343B1 (en) | 2006-05-24 |
EP1571343A1 (en) | 2005-09-07 |
DE602004000976D1 (en) | 2006-06-29 |
ATE327438T1 (en) | 2006-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: C.R.F. SOCIETA CONSORTILE PER AZIONI, ITALY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DEL ZANNO, PAOLO MARIA;REEL/FRAME:016040/0969 Effective date: 20050512 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |