US20150247638A1 - Heating device operated with liquid fuel - Google Patents

Heating device operated with liquid fuel Download PDF

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Publication number
US20150247638A1
US20150247638A1 US14/428,063 US201314428063A US2015247638A1 US 20150247638 A1 US20150247638 A1 US 20150247638A1 US 201314428063 A US201314428063 A US 201314428063A US 2015247638 A1 US2015247638 A1 US 2015247638A1
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US
United States
Prior art keywords
fuel pump
fuel
set forth
pressure
additional volume
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
Application number
US14/428,063
Other languages
English (en)
Inventor
Nico Soppa
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.)
Valeo Thermal Commercial Vehicles Germany GmbH
Original Assignee
Spheros GmbH
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 Spheros GmbH filed Critical Spheros GmbH
Assigned to SPHEROS GMBH reassignment SPHEROS GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SOPPA, NICO
Publication of US20150247638A1 publication Critical patent/US20150247638A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/04—Feeding or distributing systems using pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/24—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F23K5/142—Fuel pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/005—Regulating fuel supply using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/007—Regulating fuel supply using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/247—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H2001/2268—Constructional features
    • B60H2001/2284—Fuel supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/30—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2239/00—Fuels
    • F23N2239/06—Liquid fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/14—Vehicle heating, the heat being derived otherwise than from the propulsion plant

Definitions

  • the invention concerns a heating device operated with liquid fuel of the kind set forth in the classifying portion of claim 1 and a fuel pump suitable for such a heating device.
  • conduit is used to denote all kinds of hollow spaces and hollow bodies which are capable of serving as a flow path for a fluid, in particular a liquid, and which for that purpose have at least one feed opening and at least one outlet opening.
  • pipe conduits these also include for example through bores in solid bodies of any external shape, passages which with the exception of feed and outlet openings are closed on all sides, and so forth.
  • the expression “conduit region” is used to denote a plurality of such conduits which are or can be connected together in flow relationship and which can also be connected to one or more bores or recesses which are of a blind hole-like configuration, namely having only one connecting opening, which are adapted to receive and store a fluid, in particular a liquid.
  • the heating devices involved herein are used either in the form of heating appliances or heating systems which are installed in private motor vehicles, buses, railway vehicles and like, and which serve for heating the interior compartments of those vehicles or however also for preheating the radiator water for example of diesel engines, or they are in the form of stationarily installed heating plants for example for heating buildings.
  • They include a fuel pump, by means of which the fluid fuel is sucked in from a supply container or tank and fed to a pressure conduit region in which an increased pressure defined by a pressure regulator or pressure limiter prevails and from which the fuel flows to an atomizer nozzle, through which it is injected into a burner chamber to form a burner flame.
  • shut-off device which for example can be in the form of a solenoid shut-off valve and can be closed to interrupt the feed of fuel to the atomizer nozzle.
  • the level of the suction-side reduced pressure produced by the fuel pump is dependent on numerous factors like for example the components in the suction conduit (including the fuel filter), the length of the suction conduit, the speed of rotation of the pump, the viscosity of the conveyed fuel, that varies with temperature, and so forth.
  • Gas bubbles of widely differing sizes can occur in the fuel conveyed in the suction intake system because, when the reduced pressure reaches certain values, vaporization of the fuel occurs and/or because the fuel system may have leaks leading to the intake of air bubbles and/or because gas bubbles formed in the supply tank are also sucked in.
  • a disadvantage with those remedial measures is that it is necessary to use additional components which markedly increase the manufacturing costs of such a system.
  • the object of the invention is to develop a heating device of the kind set forth in the opening part of this specification in such a way that gas bubbles which are sucked in with the fuel by the fuel pump do not lead to failure of the heating device or at least lead to such a failure much less frequently than in the state of the art.
  • the endeavor was to minimize the volume of the pressure conduit region, that is to say between the displacer member of the pump and the fuel atomizer nozzle.
  • the aim thereby was to achieve a structural size which was as small as possible and in addition the aim was to keep down post-drip of fuel from the atomizer nozzle, which under some circumstances occurs after termination of the heating mode of operation.
  • both the pressure regulator and also the shut-down device and also the nozzle holder carrying the atomizer nozzle are integrated into the pump, thereby giving a very small volume in respect of the conduits connecting those units together.
  • the at least one additional volume providing for stabilization of the heating process is associated with the part of the pressure conduit region between the displacer member of the fuel pump, the shut-off device and the pressure regulator.
  • the additional volume or volumes can be associated with the respective part of the pressure conduit region either by conduit portions which are present in any case being increased in length and/or by their being increased in size in respect of their cross-section.
  • An alternative involves connecting pressure-side conduit portions which are short and of small cross-section by way of a branch conduit to a storage or supply chamber for the fuel which is under pressure.
  • the size of the additional volume or volumes which is or are provided according to the invention and which is or are required to achieve the effect of the reduction in size and reduction in terms of time of a pressure drop, occurring when gas bubbles are sucked in, on the pressure side of the fuel pump depends in the specific individual case on a series of factors like for example the fuel volume which is to be delivered per unit of time by the fuel pump in regular operation, the ratio of conduit volume on the suction side to that on the pressure side of the fuel pump, and so forth, but can readily be ascertained by the man skilled in the art by appropriate tests.
  • FIG. 1 shows a diagrammatic view of a heating device according to the invention, in which the additional volumes are afforded by enlarging and/or increasing the length of conduit regions which are present in any case, and
  • FIG. 2 shows a diagrammatic view of a heating device according to the invention in which the additional volumes are in the form of additional storage chambers which are connected by branch conduits to the conduit regions which are present in any case.
  • Both Figures show a fuel pump 1 whose displacer member 2 is driven by a motor 3 and which admittedly preferably involves a gear pump but which alternatively can also be any other type of pump.
  • the motor 3 can be an independent unit in the manner illustrated or it can be integrated into the fuel pump 1 .
  • the fuel pump 1 sucks fuel from a fuel tank 6 by way of a suction conduit 4 , as indicated by the arrow S.
  • conduit 7 which is internal to the pump, leading to a shut-off device which is in the form of a shut-off valve 8 and which is adjoined by a further conduit 9 which feeds the fuel to an atomizer nozzle 10 through which it is injected into a combustion chamber (not further shown) in order there to be burnt as a flame 11 .
  • the shut-off valve 8 is actuable by way of a solenoid 12 and serves to be closed when no heating mode of operation is running.
  • the pressure which obtains in the conduits 7 and 9 and which in the above-mentioned pumps of the applicant can typically be in a range of between 9 and 10 bars is defined by an adjustable pressure regulator 14 which by way of a return conduit 16 returns the fuel which is delivered in excess by the fuel pump 1 back into the fuel tank 6 , as indicated by the arrow R.
  • the return conduit 16 instead of communicating with the fuel tank 6 , can open into the suction conduit 4 as is indicated by the dotted line 17 (one-line system). In that case the branch of the return conduit 16 which leads to the fuel tank 6 , is omitted.
  • shut-off valve 8 the solenoid 12 serving for actuation thereof and the pressure regulator are shown as units which are integrated in the fuel pump 1 , that is to say which are assembled to the pump body, while the atomizer pump 10 which is generally mounted on a nozzle holder (not shown) is at a somewhat greater spacing from the fuel pump 1 .
  • At least one additional volume 20 , 22 which is associated with the parts of the pressure conduit region, that are disposed between the displacer member 2 of the fuel pump 1 , the pressure regulator 14 and the shut-off valve 8 and/or between the shut-off valve 8 and the atomizer nozzle 10 .
  • association is such that the cross-section of the conduits 7 and 9 which are present in any case is increased in size either directly or by the provision of parallel conduits, as is indicated by rectangles shown in broken line, which surround those conduit portions 7 and 9 .
  • Each of those additional volumes 20 , 22 can be provided either in itself alone or jointly with the respective other one.
  • FIG. 2 shows additional volumes 24 , 26 which are connected to the conduits 7 and 9 respectively by way of branch conduits 27 , 29 and thus are not disposed directly in the flow paths which lead from the displacer member 2 of the fuel pump 1 to the shut-off valve 8 or from there to the atomizer nozzle 10 .
  • those additional volumes 24 , 26 can also be arranged internally of the pump and/or externally of the pump and can be combined in any fashion with the additional volumes 20 , 22 .
  • the total size of the additional volume or volumes 20 , 22 , 24 , 26 can preferably be more than 100 mm 3 , particularly preferably more than 200 mm 3 and quite particularly preferably more than 400 mm 3 , or can be in a range of between 10% and 60%, particularly preferably between 20% and 50% and quite particularly preferably between 30% and 40% of the minimum required volume necessary for connecting the components disposed on the pressure side of the displacer member 2 of the fuel pump 1 in any case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Nozzles (AREA)
US14/428,063 2012-10-23 2013-08-02 Heating device operated with liquid fuel Abandoned US20150247638A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102012110103.5 2012-10-23
DE102012110103.5A DE102012110103A1 (de) 2012-10-23 2012-10-23 Mit flüssigem Brennstoff betriebene Heizeinrichtung
PCT/EP2013/066303 WO2014063845A1 (de) 2012-10-23 2013-08-02 Mit flüssigem brennstoff betriebene heizeinrichtung

Publications (1)

Publication Number Publication Date
US20150247638A1 true US20150247638A1 (en) 2015-09-03

Family

ID=49170655

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/428,063 Abandoned US20150247638A1 (en) 2012-10-23 2013-08-02 Heating device operated with liquid fuel

Country Status (7)

Country Link
US (1) US20150247638A1 (zh)
EP (1) EP2912376A1 (zh)
CN (1) CN104736933B (zh)
CA (1) CA2886415C (zh)
DE (1) DE102012110103A1 (zh)
RU (1) RU2670642C9 (zh)
WO (1) WO2014063845A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170176021A1 (en) * 2014-03-07 2017-06-22 Progreen Labs, Llc Heating system
US10094555B2 (en) 2014-03-06 2018-10-09 Progreen Labs, Llc Treatment device of a heating system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016119684A1 (de) * 2016-10-14 2018-04-19 Valeo Thermal Commercial Vehicles Germany GmbH Entlüftungseinrichtung für ein mit flüssigem Brennstoff im Einstrang-Betrieb arbeitendes Heizgerät
RU171963U1 (ru) * 2016-12-01 2017-06-22 Публичное акционерное общество "КАМАЗ" Система топливопитания предпускового подогревателя
CN108817064B (zh) * 2018-08-17 2021-06-08 南京青橄榄网络科技有限公司 一种空心蛟龙叶片式的土壤修复设备及其方法

Citations (4)

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Publication number Priority date Publication date Assignee Title
DE3600597A1 (de) * 1986-01-11 1987-07-16 Deutsche Forsch Luft Raumfahrt Brenner fuer fluessige brennstoffe
US20040000595A1 (en) * 2002-07-01 2004-01-01 Markus Munzner Burner system, especially for a vehicle heater
US20050188958A1 (en) * 2004-02-28 2005-09-01 Rolf Klenk Arrangement for supplying fuel to the fuel injectors of an internal combustion engine
US7314039B2 (en) * 2004-12-01 2008-01-01 Riello S.P.A. Method of controlling operation of a liquid-fuel combustion appliance

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SU1039293A1 (ru) * 1982-03-17 1996-01-10 А.И. Блохин Предпусковой подогреватель двигателя внутреннего сгорания
SU1359469A1 (ru) * 1985-07-23 1987-12-15 Научно-производственное объединение по топливной аппаратуре двигателей "ЦНИТА" Система подачи топлива
SU1630411A1 (ru) * 1989-09-22 1996-12-10 А.И. Блохин Предпусковой подогреватель двигателя внутреннего сгорания
CA2180273A1 (en) * 1993-12-31 1995-07-06 Erwin Burner Vehicle heating appliance with overheating checking device
DE10163140B4 (de) * 2001-12-20 2005-10-06 Webasto Ag Heizgerät mit einer Steuerung
CN1328541C (zh) * 2005-01-26 2007-07-25 长安大学 汽车双燃料加热器
DE102008063990A1 (de) * 2008-12-19 2010-06-24 J. Eberspächer GmbH & Co. KG Fahrzeugbrenner
CN102506198B (zh) * 2011-10-20 2013-05-22 南京普鲁卡姆电器有限公司 双气源燃气自适应主控阀

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3600597A1 (de) * 1986-01-11 1987-07-16 Deutsche Forsch Luft Raumfahrt Brenner fuer fluessige brennstoffe
US20040000595A1 (en) * 2002-07-01 2004-01-01 Markus Munzner Burner system, especially for a vehicle heater
US20050188958A1 (en) * 2004-02-28 2005-09-01 Rolf Klenk Arrangement for supplying fuel to the fuel injectors of an internal combustion engine
US7314039B2 (en) * 2004-12-01 2008-01-01 Riello S.P.A. Method of controlling operation of a liquid-fuel combustion appliance

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Title
Goller Elmar et al., EP 0233349 A1 claims 05/2017, Patent Translate, English translation. *
Goller Elmar et al., EP 0233349 A1 description 05/2017, Patent Translate, English translation. *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10094555B2 (en) 2014-03-06 2018-10-09 Progreen Labs, Llc Treatment device of a heating system
US10094556B2 (en) 2014-03-06 2018-10-09 Progreen Labs, Llc Treatment device of a heating system
US10125980B2 (en) 2014-03-06 2018-11-13 Progreen Labs, Llc Treatment device of a heating system
US10125981B2 (en) 2014-03-06 2018-11-13 Progreen Labs, Llc Treatment device of a heating system
US20170176021A1 (en) * 2014-03-07 2017-06-22 Progreen Labs, Llc Heating system
US9920937B2 (en) * 2014-03-07 2018-03-20 Progreen Labs, Llc Heating system

Also Published As

Publication number Publication date
CN104736933A (zh) 2015-06-24
RU2670642C9 (ru) 2018-12-04
RU2015110599A (ru) 2016-12-20
WO2014063845A1 (de) 2014-05-01
DE102012110103A1 (de) 2014-04-24
CN104736933B (zh) 2018-01-26
CA2886415A1 (en) 2014-05-01
EP2912376A1 (de) 2015-09-02
CA2886415C (en) 2019-11-19
RU2670642C2 (ru) 2018-10-24

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SPHEROS GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SOPPA, NICO;REEL/FRAME:036122/0355

Effective date: 20150624

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION