EP3450770A1 - Zellenrad - Google Patents

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Publication number
EP3450770A1
EP3450770A1 EP17189222.7A EP17189222A EP3450770A1 EP 3450770 A1 EP3450770 A1 EP 3450770A1 EP 17189222 A EP17189222 A EP 17189222A EP 3450770 A1 EP3450770 A1 EP 3450770A1
Authority
EP
European Patent Office
Prior art keywords
inner sleeve
end plates
cell wheel
axis
sleeve
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.)
Withdrawn
Application number
EP17189222.7A
Other languages
German (de)
English (en)
French (fr)
Inventor
Herr Dirk Weid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GF Casting Solutions AG
Original Assignee
GF Casting Solutions AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GF Casting Solutions AG filed Critical GF Casting Solutions AG
Priority to EP17189222.7A priority Critical patent/EP3450770A1/de
Priority to KR1020180103777A priority patent/KR20190026605A/ko
Priority to US16/120,325 priority patent/US20190072027A1/en
Priority to JP2018164425A priority patent/JP2019044771A/ja
Priority to CN201811027267.4A priority patent/CN109424424A/zh
Publication of EP3450770A1 publication Critical patent/EP3450770A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F02B33/42—Engines with pumps other than of reciprocating-piston type with driven apparatus for immediate conversion of combustion gas pressure into pressure of fresh charge, e.g. with cell-type pressure exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10373—Sensors for intake systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F13/00—Pressure exchangers

Definitions

  • the invention relates to a cellular wheel of a pressure wave loader comprising an outer sleeve, an inner sleeve, an axle, wherein the axle has a central axis around which the inner and outer sleeves are arranged coaxially, lamellae, wherein the lamellae extend around the outer diameter of the inner sleeve and between the inner and outer sleeve are arranged and end plates, wherein the end plates are arranged at the ends of the inner sleeve and are rigidly connected in the circumferential direction with the axis.
  • the rotor of a pressure wave loader is designed as a cellular wheel, which is enclosed by a housing. Due to the inflow of hot exhaust gases and fresh air into the star feeder, the feeder has locally different temperatures, as well as during operation between the time of engine start up to the operating condition of the bucket is subject to strong, temporal temperature changes.
  • the DE 1 503 616 discloses a pressure exchanger with a cellular wheel, wherein the cellular wheel is fixedly connected to two journals. This has the disadvantage that it is not possible for the inner ring and the outer ring when heated to expand radially because the rings are firmly connected to the bearing pin and the inner ring is formed integrally with the outer ring. This leads to tensions and deformations of the cell wheel in uneven warming and cooling.
  • end disks are formed as separate parts and are rigidly connected in the circumferential direction with the inner sleeve, wherein in the radial direction, the end plates and the inner sleeve are movable relative to each other.
  • the cellular wheel has an outer sleeve which is arranged coaxially to the inner sleeve as well as to the axis and the corresponding central axis.
  • end plates preferably two. These are arranged at the ends on the inner circumference of the inner sleeve.
  • the end plates are preferably arranged in a form-fitting manner on the axis, wherein they are axially displaceable, preferably against stops in the inner sleeve.
  • the fins are preferably designed as separate parts which are inserted by welding, gluing, gluing or otherwise of a kind between the two diameters of the sleeves.
  • the fins are preferably at irregular intervals, but possibly also at regular intervals around along the outside diameter of the inner sleeve attached or the inner diameter of the outer sleeve.
  • the lamellae preferably extend radially, wherein they may have a straight course as well as a curved or curved course.
  • the end plates are connected in the circumferential direction rigidly connected to the axis, preferably by means of a positive connection.
  • the end plates are formed as separate parts and are rigidly connected to the inner sleeve in the circumferential direction, wherein in the radial direction, the end plates and the inner sleeve are movable relative to each other.
  • the parts move away from each other and back to each other when the parts cool down. The parts can thereby change their dimension independently of each other.
  • An advantageous embodiment of the end plates is to connect end plates in the circumferential direction positively with the inner sleeve, this granted during the rotational movements of the feeder or the axis optimum or frictionless transmission of rotational movement from the axis via the end plates on the inner sleeve and thus on the fins and outer sleeve, which are preferably also connected in the circumferential direction rigidly with the inner sleeve, wherein, as previously mentioned, the connection between the inner sleeve, the fins and the outer sleeve can be configured by different types of connection, whether by welding, plugging, gluing or otherwise a connection, as well as a one-piece design of outer sleeve, inner sleeve and slats is conceivable.
  • the end plates and the inner sleeve have a toothing, which engage with each other.
  • this gearing is a (transfer with minimal or zero clearance) of the rotational movement of the axle on the inner sleeve possible.
  • tooth flanks of the end disks and the inner sleeve extend radially or are aligned radially. This means that the tooth flanks are directed perpendicular to the central axis, preferably, the surfaces of the tooth flanks of the end plates and the inner sleeve are plane-parallel to each other.
  • the relative movement between the end plates and the inner sleeve is guided by the tooth flanks. That is, with an expansion of the inner sleeve, this shifts radially relative to the end plates because this movement is guided over the tooth flanks.
  • the tip diameter of the end disks is smaller than the root diameter of the inner sleeve and the root diameter of the end disk is smaller than the tip diameter of the inner sleeve, preferably smaller such that there is a substantial distance, a particularly preferred distance of 0.5-10 mm between the tip diameter End discs and the root circle diameter inner sleeve as well as between the root circle diameter end disc and the tip circle diameter inner sleeve. This also allows a greater expansion of the end plates in comparison to the expansion of the inner sleeve without the end plates are hindered by the inner sleeve.
  • end disks and the inner sleeve have at least two teeth in order to transmit the rotational movement.
  • the inner sleeve has the same material as the end plates and thus has the same coefficient of expansion. Also end plates are conceivable, which have a lower coefficient of thermal expansion than the inner sleeve.
  • the invention is characterized in that the lamellae are aligned radially between the inner sleeve and the outer sleeve.
  • the fins do not have to be straight but can also be curved or curved.
  • the lamellae are designed as separate parts and can be mounted or fastened between the inner sleeve and the outer sleeve.
  • the end plates are arranged by means of positive locking on the axis, preferably by means of feather key connection, this allows a friction-free transmission of the rotational movement and yet an axial mobility.
  • Fig. 1 shows the longitudinal section of an inventive cell wheel 1.
  • the outer sleeve 2 and the inner sleeve 3 extend coaxially to the central axis 5 of the axis 4 by means of which the cell wheel 1 is driven for example in a pressure wave supercharger.
  • fins 6 run in radial Direction of the cell wheel 1 divided into cells, which looks good Fig. 2 is recognizable.
  • the slats 6 are shown bent in the illustrated embodiment at their ends, of course, even running slats could be used.
  • the fins could also have a curved shape.
  • the fins 6 are separately formed parts which are arranged between the outer diameter of the inner sleeve 3 and the inner diameter of the outer sleeve 2.
  • the attachment of the slats 6 is to adapt to the requirements, that is, the slats 6 may be by plugging, welding, gluing or otherwise attached a kind between the sleeves, but also be made together with the sleeves as a coherent part.
  • end plates 7 are arranged at the ends of the inner sleeve 3 at the ends of the inner sleeve 3 at the ends of the inner sleeve 3 .
  • the end plates 7 are preferably arranged positively on the axis 4, so that they are fixed in the circumferential direction rigidly on the axis 4, but can be moved in the axial direction.
  • the end plates 7 are separately formed parts which are connected by means of a positive connection with the inner sleeve 3, preferably so that the positive connection in the circumferential direction comes to fruition and co-rotate the inner sleeve 3 and the other parts of the cellular wheel 1 when driving the axle 4.
  • the end plates 7 and the inner sleeve 3 are arranged movable relative to each other in the radial direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Supercharger (AREA)
EP17189222.7A 2017-09-04 2017-09-04 Zellenrad Withdrawn EP3450770A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP17189222.7A EP3450770A1 (de) 2017-09-04 2017-09-04 Zellenrad
KR1020180103777A KR20190026605A (ko) 2017-09-04 2018-08-31 셀 휠
US16/120,325 US20190072027A1 (en) 2017-09-04 2018-09-03 Cell wheel
JP2018164425A JP2019044771A (ja) 2017-09-04 2018-09-03 セル形ホイール
CN201811027267.4A CN109424424A (zh) 2017-09-04 2018-09-04 单元轮

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17189222.7A EP3450770A1 (de) 2017-09-04 2017-09-04 Zellenrad

Publications (1)

Publication Number Publication Date
EP3450770A1 true EP3450770A1 (de) 2019-03-06

Family

ID=59790967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17189222.7A Withdrawn EP3450770A1 (de) 2017-09-04 2017-09-04 Zellenrad

Country Status (5)

Country Link
US (1) US20190072027A1 (ja)
EP (1) EP3450770A1 (ja)
JP (1) JP2019044771A (ja)
KR (1) KR20190026605A (ja)
CN (1) CN109424424A (ja)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362620A (en) * 1965-07-13 1968-01-09 Power Jets Res & Dev Ltd Rotor
GB1125472A (en) * 1966-03-02 1968-08-28 Power Jets Res & Dev Ltd Improvements in or relating to a pressure exchanger
DE1503616A1 (de) 1965-01-13 1970-04-30 Spalding Dudley Brian Druckaustauscher
US20160265783A1 (en) * 2015-03-13 2016-09-15 Rolls-Royce North American Technologies, Inc. Variable port assemblies for wave rotors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1503616A1 (de) 1965-01-13 1970-04-30 Spalding Dudley Brian Druckaustauscher
US3362620A (en) * 1965-07-13 1968-01-09 Power Jets Res & Dev Ltd Rotor
GB1125472A (en) * 1966-03-02 1968-08-28 Power Jets Res & Dev Ltd Improvements in or relating to a pressure exchanger
US20160265783A1 (en) * 2015-03-13 2016-09-15 Rolls-Royce North American Technologies, Inc. Variable port assemblies for wave rotors

Also Published As

Publication number Publication date
CN109424424A (zh) 2019-03-05
US20190072027A1 (en) 2019-03-07
JP2019044771A (ja) 2019-03-22
KR20190026605A (ko) 2019-03-13

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