US3779229A - Heater for vehicles - Google Patents

Heater for vehicles Download PDF

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Publication number
US3779229A
US3779229A US00181316A US3779229DA US3779229A US 3779229 A US3779229 A US 3779229A US 00181316 A US00181316 A US 00181316A US 3779229D A US3779229D A US 3779229DA US 3779229 A US3779229 A US 3779229A
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US
United States
Prior art keywords
casing
fuel
combustion chamber
fuel pump
electric motor
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.)
Expired - Lifetime
Application number
US00181316A
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English (en)
Inventor
H Volbehr
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.)
Webasto Werk W Baier GmbH and Co
Original Assignee
Webasto Werk W Baier GmbH and Co
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 Webasto Werk W Baier GmbH and Co filed Critical Webasto Werk W Baier GmbH and Co
Application granted granted Critical
Publication of US3779229A publication Critical patent/US3779229A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • B60H1/2209—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners arrangements of burners for heating an intermediate liquid
    • 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
    • B60H2001/2278—Connectors, water supply, housing, mounting brackets

Definitions

  • ABSTRACT 30 Foreign Application Priority Data A compact heater for vehicles which is fired by fluid fuels and wherein one half of a split casing is arranged O t. 3, 1970 G P 20 48 760.9
  • E2411 3/06 assembly includes in Coaxial Succession 581 Field of Search 126/110 R 110 B electric drive motor impeller 126/116 R 116 237/123 431/187 air, a central air guide, a fuel pump and an atomizing 188 353 l89.239/4l6 5 4:173 nozzle extending therefrom into the burner head at the mouth of the combustion chamber.
  • the casing [56] References Cited halves can be pivoted open for convenient access to UNITED STATES PATENT-S the parts of the burner assembly.
  • This invention relates to heaters for vehicles, and more especially to a heater, operated with fluid fuel which is provided with a heatexchanger in which heat is transferred from a tubular combustion chamber to a liquid heat carrier medium, and which includes a fuel pump, a blower for combustion air, and an electric drive motor, the combustion chamber, heat exchanger, and blower for combustion air being disposed in acoaxial relationship.
  • Heaters for vehicles should meet certain requirements, particularly in respect to compactness, accessibility of the parts of the burner unit, and good controllability to ensure optimum adjustment of heat output and stability of combustion.
  • Various heaters for vehi- 1 cles have been suggested by the prior art, but none of them combines the above requirements in an optimal manner, the known solutions being either too bulky and too costly, or very difficult to service, and sometimes unreliable in operation.
  • the object of the present invention is to provide a heater which substantially fulfills all of the abovementioned requirements.
  • the invention suggests a heater for a vehicle comprising, in a casing formed of two separate parts, a fluid fuel pump provided with an atomizing nozzle, and a blower supplying air for the combustion of the fuel, the pump, nozzle and blower being coaxially disposed inside the casing, and being connected to a common drive motor on one side of the casing, while the atomizing nozzle feeds fuel to a combustion chamber located on the opposite side of the casing.
  • a heater in accordance with the invention may comprise the following features in combination:
  • an atomizer nozzle disposed coaxially with the drive motor for atomizing the fuel into the combustion chamber
  • a fuel pump located between the atomizer nozzle and the blower for combustion air;
  • a drive motor located behind the blower for combustion air, as viewed from the atomizer nozzle;
  • a casing formed of parts separable from one another in a plane between the blower for combustion air and the atomizer nozzle, this casing accommodating the impeller for combustion air, the fuel pump, and the atomizer nozzle.
  • Feature (a) ensures good electric controllability of the heater and good atomization of the fuel, thus ensuring trouble-free operation of the burner for a long period of time. Incorporation of feature (d) in combination with feature (a) renders the atomizer nozzle readily accessible, while feature (b) provides a simple construction connecting the atomizer nozzle and the fuel pump. Feature (d) also provides easy accessibility to the fuel pump, while allowing it to be accommodated in a protected location. The drive motor is nevertheless readily accessible in view of feature (c), so that the collector brushes of the motor can be attended to or replaced without dismantling the heater.
  • a swivelling device to allow a part, e.g. the rear half of the casing, to be swung out carrying with it the drive motor, the parts driven by the latter, and the support of the atomizer nozzle, which is also attached onto to this half of the casing.
  • the swivelling means may be provided at each of two oppositely situated points of the casing, selectively removable swivel pins being provided at these points.
  • the casing includes a swivel pin on the side opposite to the combustion air intake and one or several quickly releasable swivel bolts with wing nuts on the periphery of the dividing joint, which firmly clamp the casing parts together.
  • the fuel pipe leading to the fuel pump may extend into the casing through the dividing joint of the separable casing parts.
  • the drive motor may be housed inside a chamber formed by a hood which is likewise fastened on the rear part of the casing, and which has an opening whose center axis forms an angle between and with the axis of the motor.
  • the drive motor located in accordance with feature (c) is thereby protected, while in addition simple adjustability of the flow of combustion air at said opening is also possible.
  • FIGURE shows in a longitudinal center cross-section a horizontal heater for vehicles representing an embodiment of the invention.
  • a tubular combustion chamber 1 is surrounded by an annular exhaust gas duct 2 closed at one end, which together with a surrounding cylindrical chamber 3 constitutes a heat exchanger transferring heat to a liquid heat carrier medium.
  • the burner unit consists of an electric drive motor 4, an impeller 5 for combustion air, a fuel pump 6, and an atomizer nozzle 7, the last three parts mentioned being disposed in a casing formed of separable parts, namely a carrier part 8 and a front part 10 carrying a burner head 9.
  • the casing includes a swivel pin 11 and one or more swivel bolts 12 and wing nuts which are arranged on the periphery of the joint.
  • the swivel bolts can be quickly released, so that the carrier part 8 can be pivoted around pin 11, and out of the front part 10, for convenient access to the inner parts of the burner assembly. It is also possible to arrange removable swivel pins at both sides of the dividing joint, for example at points 11 and 12, thereby permitting opening of the carrier part in two different directions.
  • the burner assembly is mounted inside the carrier part 8 on an open flange traversed by three ribs, one of them being shown at 13.
  • the drive motor 4 is mounted in the chamber which is formed by the hood l4, and into which the blower 5 draws the combustion air through the intake aperture 16, delivering it through an annular passage 17 to the burner head 9 and into the combustion chamber 1.
  • the fuel arrives from a tank (not shown) through the fuel line 18 to the fuel pump 6, which is driven directly, or through a transmission, by the drive motor 4.
  • the nozzle support 19 is fastened to the casing of the pump 6. It is also possible for the fuel line 18 to be passed through the dividing joint between the two separable casing parts 8 and 10.
  • An exhaust gas outlet 20 extends from the duct 2, while two elbow connections form an intake 21 and outlet 22 for the heat exchanger through which circulates the heat carrier medium.
  • the latter is pumped by a circulating pump (not shown) through the water jacket 3 and into the heating system (likewise not shown).
  • a compact fluid-fuel-flred heater for use in vehicles and the like comprising in combination:
  • a central casing having a longitudinal center axis
  • a combustion air blower in the form of an impeller driven by the electric motor, the blower supplying combustion air through the casing;
  • a heat exchanger extending from the same end of the casing and arranged in correlation with the combustion chamber, so that during operation, the combustion heat is transferred to a heat carrier medium circulating through the heat exchanger;
  • a burner head forming an axial communicating passage between the casing and the combustion chamber
  • a fuel atomizing nozzle arranged in the center of the burner head so as to aim its fuel discharge axially through the communicating passage into the combustion chamber
  • the fuel feeding means including a fuel pump driven by the electric motor, the atomizing nozzle being mounted on the fuel pump;
  • the electric motor and the impeller driven by the motor being arranged substantially in axial alignment with the atomizing nozzle so as to create an annular axially directed flow of combustion air around the atomizing nozzle into the combustion chamber.
  • combustion chamber is in the form of a coaxially extending combustion cylinder open at the far end and surrounded by a closed coaxial cylinder so as to create an axial flow gap at the open end of the combustion cylinder and an annular reverse flow gap between the cylinder walls, the combustion chamber further including a radially oriented exhaust outlet near the inner end of the reverse flow gap; and v the heat exchanger includes still another coaxial, closed cylinder surrounding the outer cylinder of the combustion chamber, so as to form an annular jacket for a heat carrier medium, the jacket including an inlet and outlet for the circulation of the heat carrier medium.
  • the fuel pump is arranged likewise coaxially inside the casing, in the space between the impeller and the atomizing nozzle, and being driven via the aforementioned motor shaft;
  • the casing further including acentral air guide in the form of a cone to deflect the combustion air annularly around the fuel pump and to support the latter as well as the atomizer nozzle, the air guide being connected to the casing by radial ribs.
  • the casing further includes, in the plane of the dividing joint, a peripheral pivot pin engaged by both axial halves and quick-release fasteners holding the two halves together; the motor cover, motor, central air guide, fuel pump and atomizer nozzle being arranged as a burner assembly on, and partially inside, one of the casing halves, while the burner head, combusion chamberv and heat exchanger are attached to the other casing half; so that, when the two halves are pivoted open around the peripheral pivot, the fuel pump and atomizer nozzle become conveniently accessible.
  • a fluid-fuel-fired heater for use in vehicles and the like comprising in combination:
  • a central casing assembly formed by a first casing half and a second casing half which are separable along a casing joint arranged in a plane transverse to the center axis of the casing assembly;
  • the casing joint including a pivot connection at a distance from the casing center axis and quick-release clamping means opposite the pivot connection, the pivot being so positioned that the casing halves can be swung open so as to expose the atomizing nozzle and the fuel pump for easy access 11.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Paper (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
US00181316A 1970-10-03 1971-09-17 Heater for vehicles Expired - Lifetime US3779229A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702048760 DE2048760B2 (de) 1970-10-03 1970-10-03 Heizvorrichtung fuer fahrzeuge

Publications (1)

Publication Number Publication Date
US3779229A true US3779229A (en) 1973-12-18

Family

ID=5784182

Family Applications (1)

Application Number Title Priority Date Filing Date
US00181316A Expired - Lifetime US3779229A (en) 1970-10-03 1971-09-17 Heater for vehicles

Country Status (9)

Country Link
US (1) US3779229A (enExample)
JP (1) JPS5338456B1 (enExample)
AT (1) AT317005B (enExample)
CA (1) CA959809A (enExample)
DE (1) DE2048760B2 (enExample)
FR (1) FR2105969A5 (enExample)
GB (1) GB1301234A (enExample)
IT (1) IT938858B (enExample)
YU (1) YU33321B (enExample)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894526A (en) * 1972-10-16 1975-07-15 Eberspaecher J Space heater construction particularly for mobile installations
US4216759A (en) * 1977-04-23 1980-08-12 Webasto-Werk W. Baier Gmbh & Co. Auxiliary heater for vehicles
US4313417A (en) * 1979-07-09 1982-02-02 Koehring Company Portable space heater
US4519375A (en) * 1983-03-23 1985-05-28 Webasto-Werke W. Baier Gmbh & Co. Hot-air heater
US4590888A (en) * 1984-01-03 1986-05-27 Webasto-Werk W. Baier Gmbh & Co. Water heater
US4623310A (en) * 1985-04-24 1986-11-18 Mikuni Kogyo Kabushiki Kaisha Vaporized liquid fuel combustion apparatus
US4637371A (en) * 1983-11-17 1987-01-20 Webasto-Werk W. Baier Gmbh & Co. Fuel-operated heating system, particularly an auxiliary heater for a vehicle
US4688718A (en) * 1985-03-15 1987-08-25 Webasto-Werk W. Baier Gmbh & Co. Intermediate housing for a fuel-operated heater
EP1213547A3 (de) * 2000-12-07 2003-12-03 J. Eberspächer GmbH & Co. KG Motorunabhängiges Heizgerät eines Kraftfahrzeuges
US20070235017A1 (en) * 2006-04-05 2007-10-11 Fitch John R Portable heating apparatus
US20080023036A1 (en) * 2005-12-10 2008-01-31 Ha Gun H Vacuum cleaner with removable dust collector, and methods of operating the same
DE102006048440A1 (de) * 2006-10-12 2008-04-17 Webasto Ag System mit einem modular ausgebildeten Heizgerät und Verfahren zum Wechseln eines Moduls des Heizgeräts
DE10108833B4 (de) * 2001-02-23 2008-08-28 Volkswagen Ag Heizgerät, insbesondere für ein Kraftfahrzeug
US20090008465A1 (en) * 2006-03-14 2009-01-08 Webasto Ag Combined heating/warm water system for mobile applications
CN102536378A (zh) * 2012-02-27 2012-07-04 太仓凯鑫电子有限公司 一种高性能电火焰加热器
USD898172S1 (en) * 2018-10-17 2020-10-06 Webasto SE Heater

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55180462U (enExample) * 1979-06-11 1980-12-25
DD149048A1 (de) * 1980-02-05 1981-06-24 Frank Schattenberg Mit fluessigem brennstoff betriebene heizvorrichtung fuer farhzeuge
JPS62151866U (enExample) * 1985-10-21 1987-09-26
DE3639222C1 (en) * 1986-11-15 1988-07-07 Webasto Ag Fahrzeugtechnik Air-heating device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1412023A (en) * 1920-05-11 1922-04-04 Todd Shipyards Corp Oil-burning apparatus
US2726042A (en) * 1951-11-21 1955-12-06 Baier Wilhelm Kg Heating plant, particularly for motor vehicles
US2757662A (en) * 1951-07-05 1956-08-07 Baier Wilhelm Kg Liquid-fuel operated heating device for vehicles
US3543742A (en) * 1967-07-07 1970-12-01 Sueddeutsche Kuehler Behr Heater for burning liquid fuel,primarily benzine,especially extraneous heater for motor vehicles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1412023A (en) * 1920-05-11 1922-04-04 Todd Shipyards Corp Oil-burning apparatus
US2757662A (en) * 1951-07-05 1956-08-07 Baier Wilhelm Kg Liquid-fuel operated heating device for vehicles
US2726042A (en) * 1951-11-21 1955-12-06 Baier Wilhelm Kg Heating plant, particularly for motor vehicles
US3543742A (en) * 1967-07-07 1970-12-01 Sueddeutsche Kuehler Behr Heater for burning liquid fuel,primarily benzine,especially extraneous heater for motor vehicles

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894526A (en) * 1972-10-16 1975-07-15 Eberspaecher J Space heater construction particularly for mobile installations
US4216759A (en) * 1977-04-23 1980-08-12 Webasto-Werk W. Baier Gmbh & Co. Auxiliary heater for vehicles
US4313417A (en) * 1979-07-09 1982-02-02 Koehring Company Portable space heater
US4519375A (en) * 1983-03-23 1985-05-28 Webasto-Werke W. Baier Gmbh & Co. Hot-air heater
US4637371A (en) * 1983-11-17 1987-01-20 Webasto-Werk W. Baier Gmbh & Co. Fuel-operated heating system, particularly an auxiliary heater for a vehicle
US4590888A (en) * 1984-01-03 1986-05-27 Webasto-Werk W. Baier Gmbh & Co. Water heater
US4688718A (en) * 1985-03-15 1987-08-25 Webasto-Werk W. Baier Gmbh & Co. Intermediate housing for a fuel-operated heater
US4623310A (en) * 1985-04-24 1986-11-18 Mikuni Kogyo Kabushiki Kaisha Vaporized liquid fuel combustion apparatus
EP1213547A3 (de) * 2000-12-07 2003-12-03 J. Eberspächer GmbH & Co. KG Motorunabhängiges Heizgerät eines Kraftfahrzeuges
DE10108833B4 (de) * 2001-02-23 2008-08-28 Volkswagen Ag Heizgerät, insbesondere für ein Kraftfahrzeug
US20080023036A1 (en) * 2005-12-10 2008-01-31 Ha Gun H Vacuum cleaner with removable dust collector, and methods of operating the same
US20090008465A1 (en) * 2006-03-14 2009-01-08 Webasto Ag Combined heating/warm water system for mobile applications
US20070235017A1 (en) * 2006-04-05 2007-10-11 Fitch John R Portable heating apparatus
DE102006048440A1 (de) * 2006-10-12 2008-04-17 Webasto Ag System mit einem modular ausgebildeten Heizgerät und Verfahren zum Wechseln eines Moduls des Heizgeräts
CN102536378A (zh) * 2012-02-27 2012-07-04 太仓凯鑫电子有限公司 一种高性能电火焰加热器
USD898172S1 (en) * 2018-10-17 2020-10-06 Webasto SE Heater

Also Published As

Publication number Publication date
YU33321B (en) 1976-10-31
GB1301234A (enExample) 1972-12-29
YU166671A (en) 1976-04-30
FR2105969A5 (enExample) 1972-04-28
DE2048760A1 (de) 1972-04-06
DE2048760B2 (de) 1976-06-24
IT938858B (it) 1973-02-10
CA959809A (en) 1974-12-24
JPS5338456B1 (enExample) 1978-10-16
AT317005B (de) 1974-08-12

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