EP0020422A1 - Heating system for vehicles - Google Patents

Heating system for vehicles

Info

Publication number
EP0020422A1
EP0020422A1 EP79901198A EP79901198A EP0020422A1 EP 0020422 A1 EP0020422 A1 EP 0020422A1 EP 79901198 A EP79901198 A EP 79901198A EP 79901198 A EP79901198 A EP 79901198A EP 0020422 A1 EP0020422 A1 EP 0020422A1
Authority
EP
European Patent Office
Prior art keywords
heat
liquid
emitter
inlet
outlet
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Withdrawn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
EP79901198A
Other languages
German (de)
French (fr)
Inventor
Gunnar Sellin
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.)
BLACKSTONE TERMOFROST AB
Original Assignee
BLACKSTONE TERMOFROST AB
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 BLACKSTONE TERMOFROST AB filed Critical BLACKSTONE TERMOFROST AB
Publication of EP0020422A1 publication Critical patent/EP0020422A1/en
Withdrawn legal-status Critical Current

Links

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
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/14—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
    • B60H1/18—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the air being heated from the plant exhaust gases
    • B60H1/20—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the air being heated from the plant exhaust gases using an intermediate heat-transferring medium

Definitions

  • the present invention relates to a heating system for vehicles, particularly vehicles with air-cooled en ⁇ gines / said system having a heat absorber equipped with an inlet and an outlet for absorption of heat from the exhaust gases of the engine, a heat emitter equipped with an inlet and an outlet which are connected to the inlet and outlet, respectively, of the heat absorber by means of a pipe circuit for transporting heat-carrying liquid, said heat absorber being adapted to deliver heat to a space to be heated, a collecting vessel connected to the heat absorber, and a liquid transporting means inserted in the pipe circuit.
  • the object of the present invention is to exploit the exhaust gases of a motor vehicle for heating a space of the vehicle, for example the driver's cab.
  • the heating system which is characterized in that the collecting vessel is connected in the pipe circuit between the outlet of the heat absorber and the inlet of the heat emitter and disposed on a lower level than the heat absorber, whereby the liquid by gravity can flow down into the collecting vessel in order, when the system is inoperative, to empty at least the heat absorber of liquid.
  • the heating system according to the invention com- prises two main components, namely a heat absorber 3 for absorption of heat from the exhaust gases of a vehicle engine, and a heat emitter 6 for delivering heat to a space to be heated.
  • the heat absorber and the heat emitter each have one inlet 1 and 4, respectively, and one outlet 2 and 5, respectively, the outlet 2 of .
  • the heat absorber being connected to the inlet 4 of the heat emitter via a first conduit 8 and the outlet 5 of the heat emitter being connected with the inlet 1 of the heat absorber via a second conduit 8' .
  • the heat absorber 3 is in the form of a can which surrounds part of the exhaust gas- pipe of the vehicle.
  • the part of the exhaust gas pipe " which is surrounded by the can is shaped such that its heat emitting surface is as large as possible, for example by the pipe being cor ⁇ rugated or having some type of heat emitting fins.
  • the heat emitter can be of any conventional type whatever that is suitable in the connection contemplated and preferably is combined with a fan which is adapted to move the heat emitted by the heat emitter into the space to be heated.
  • the heat from the heat absorber is transferred to the heat emitter by a heat-carrying liquid 1. for example water or a water glycol mixture which is transported in the conduits 8 and 8 1 by a circulation pump 10 inter- •posed in the first conduit 8.
  • the heated liquid is caus ⁇ ed to flow from the outlet 2 of the heat absorber 3 to the inlet 4 of the heat emitter 6, where it gives off its heat.
  • the cooled liquid in the heat emitter is transport- ed from the outlet 5 of the heat emitter to the inlet 1 of the heat absorber via the second conduit 8' .
  • a constriction 13 of somewhat smaller cross-sectiona area than what corresponds to the pumping capacity of the circulation pump 10 is provided in the outlet of the heat absorber, and the heat absorber is therefore con ⁇ stantly filled with liquid 7 when operating with maximum heat emission, which will be described in greater detail below.” With this constriction 13 it is thus possible to regulate the time during which the liquid shall be con- tained in the heat absorber.
  • a collecting vessel 9 is inserted in the first con ⁇ duit 8 between the constriction 13 and the circulation
  • the collecting vessel 9 has an opening 14 at the upper end for communication with ambient air and such a volume that a free liquid surface and thus normal pressure is constantly maintained in the vessel.
  • the collecting vessel is disposed on a lower level than the heat absorber such that the liquid in the heat absorber can flow down into the collecting vessel by gravity.
  • a shunt valve preferably a three-way valve 11, is connected in the first conduit 8 between the inlet 4 of the heat emitter 6 and the circulation pump 10.
  • a shunt line 12 is connected between a shunt outlet 15 of the •shunt valve and the collecting vessel. The amount of liquid flowing to the heat emitter 6 can be controlled by means of the shunt valve and the shunt line.
  • the shunt valve 11 is connected to heat control means (not shown) in the space to be heated.
  • the circulation pump 10 is • also connected to said heat control means, and the pump can be made inoperative when the control means is closed, and operative when the control means is set for heat emission.
  • the shunt valve 11 When the heat control means is set for maximum heat the shunt valve 11 is adjusted in such a way that all liquid 7 flows through the valve to the inlet 4 of the heat emitter. After heat emission the liquid is pumped to the heat absorber 3 via the second conduit 8' .
  • the pumping capacity of the pump 10 being slightly higher than what corresponds to the cross-sectional area of the constriction 13 the heat absorber will be filled complete ⁇ ly.
  • the circulation pump 10 is of such a design that the liquid can stream in rearward direction into the collecting vessel when a predetermined pressure is established in the first conduit 8 between the pump 10 and the shunt valve 11. From the heat absorber the liqu ⁇ d flows by gravity down into the collecting vessel and continues to the pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Resistance Heating (AREA)

Abstract

Systeme de chauffage pour vehicules, en particulier des vehicules ayant des moteurs refroidis par air, et exploitation de la chaleur degagee dans les gaz d'echappement du vehicule pour le chauffage d'un volume dans le vehicule. Le systeme possede un dispositif d'absorption de chaleur (3) qui est dispose autour du pot d'echappement du vehicule, et un emetteur de chaleur (6) qui est dispose dans le volume a chauffer. Le dispositif d'absorption de chaleur et l'emetteur de chaleur sont connectes entre eux au moyen d'un circuit de canalisation (8, 8') pour transporter un liquide caloporteur (7), d'un reservoir recuperateur (9) et un moyen de transport de liquide (10) introduit dans le circuit de canalisation. Le reservoir de recuperation est introduit dans le circuit de canalisation (8) entre la sortie (2) du dispositif d'absorption de chaleur (3) et l'entree (4) de l'emetteur et dispose sur un niveau plus bas que le dispositif d'absorption de chaleur, ce qui permet au liquide (7) de s'ecouler par gravite dans le recipient de recuperation afin que, lorsque le systeme n'est pas en fonctionnement, il soit possible de vidanger au moins le dispositif d'absorption de chaleur (3).Heating system for vehicles, in particular vehicles having air-cooled engines, and use of the heat given off in vehicle exhaust gases for heating a volume in the vehicle. The system has a heat absorption device (3) which is arranged around the exhaust of the vehicle, and a heat emitter (6) which is arranged in the volume to be heated. The heat absorption device and the heat emitter are connected to each other by means of a pipe circuit (8, 8 ') for transporting a heat-transfer liquid (7), a recovery tank (9) and a liquid transport means (10) introduced into the pipeline circuit. The recovery tank is introduced into the pipe circuit (8) between the outlet (2) of the heat absorption device (3) and the inlet (4) of the transmitter and is arranged on a lower level than the heat absorption device, which allows the liquid (7) to flow by gravity into the recovery container so that, when the system is not in operation, it is possible to drain at least the device heat absorption (3).

Description

1
The present invention relates to a heating system for vehicles, particularly vehicles with air-cooled en¬ gines/ said system having a heat absorber equipped with an inlet and an outlet for absorption of heat from the exhaust gases of the engine, a heat emitter equipped with an inlet and an outlet which are connected to the inlet and outlet, respectively, of the heat absorber by means of a pipe circuit for transporting heat-carrying liquid, said heat absorber being adapted to deliver heat to a space to be heated, a collecting vessel connected to the heat absorber, and a liquid transporting means inserted in the pipe circuit.
The object of the present invention is to exploit the exhaust gases of a motor vehicle for heating a space of the vehicle, for example the driver's cab.
This object is achieved by means of the heating system according to the invention which is characterized in that the collecting vessel is connected in the pipe circuit between the outlet of the heat absorber and the inlet of the heat emitter and disposed on a lower level than the heat absorber, whereby the liquid by gravity can flow down into the collecting vessel in order, when the system is inoperative, to empty at least the heat absorber of liquid. An embodiment of the invention will be described in greater detail below, with reference to the accompanying drawing in which a heating system is diagrammatically shown.
The heating system according to the invention com- prises two main components, namely a heat absorber 3 for absorption of heat from the exhaust gases of a vehicle engine, and a heat emitter 6 for delivering heat to a space to be heated. The heat absorber and the heat emitter each have one inlet 1 and 4, respectively, and one outlet 2 and 5, respectively, the outlet 2 of .the heat absorber being connected to the inlet 4 of the heat emitter via a first conduit 8 and the outlet 5 of the heat emitter being connected with the inlet 1 of the heat absorber via a second conduit 8' .
The heat absorber 3 is in the form of a can which surrounds part of the exhaust gas- pipe of the vehicle. The part of the exhaust gas pipe"which is surrounded by the can is shaped such that its heat emitting surface is as large as possible, for example by the pipe being cor¬ rugated or having some type of heat emitting fins.
The heat emitter can be of any conventional type whatever that is suitable in the connection contemplated and preferably is combined with a fan which is adapted to move the heat emitted by the heat emitter into the space to be heated.
The heat from the heat absorber is transferred to the heat emitter by a heat-carrying liquid 1. for example water or a water glycol mixture which is transported in the conduits 8 and 81 by a circulation pump 10 inter- •posed in the first conduit 8. The heated liquid is caus¬ ed to flow from the outlet 2 of the heat absorber 3 to the inlet 4 of the heat emitter 6, where it gives off its heat. The cooled liquid in the heat emitter is transport- ed from the outlet 5 of the heat emitter to the inlet 1 of the heat absorber via the second conduit 8' .
A constriction 13 of somewhat smaller cross-sectiona area than what corresponds to the pumping capacity of the circulation pump 10 is provided in the outlet of the heat absorber, and the heat absorber is therefore con¬ stantly filled with liquid 7 when operating with maximum heat emission, which will be described in greater detail below."With this constriction 13 it is thus possible to regulate the time during which the liquid shall be con- tained in the heat absorber.
A collecting vessel 9 is inserted in the first con¬ duit 8 between the constriction 13 and the circulation
OMPI pump 10. The collecting vessel 9 has an opening 14 at the upper end for communication with ambient air and such a volume that a free liquid surface and thus normal pressure is constantly maintained in the vessel. The collecting vessel is disposed on a lower level than the heat absorber such that the liquid in the heat absorber can flow down into the collecting vessel by gravity.
A shunt valve, preferably a three-way valve 11, is connected in the first conduit 8 between the inlet 4 of the heat emitter 6 and the circulation pump 10. A shunt line 12 is connected between a shunt outlet 15 of the •shunt valve and the collecting vessel. The amount of liquid flowing to the heat emitter 6 can be controlled by means of the shunt valve and the shunt line. The shunt valve 11 is connected to heat control means (not shown) in the space to be heated. The circulation pump 10 is • also connected to said heat control means, and the pump can be made inoperative when the control means is closed, and operative when the control means is set for heat emission.
When the heat control means is set for maximum heat the shunt valve 11 is adjusted in such a way that all liquid 7 flows through the valve to the inlet 4 of the heat emitter. After heat emission the liquid is pumped to the heat absorber 3 via the second conduit 8' . The pumping capacity of the pump 10 being slightly higher than what corresponds to the cross-sectional area of the constriction 13 the heat absorber will be filled complete¬ ly. In order that there shall not be created any pres- sure above atmospheric in the system when the heat absorber is entirely filled, the circulation pump 10 is of such a design that the liquid can stream in rearward direction into the collecting vessel when a predetermined pressure is established in the first conduit 8 between the pump 10 and the shunt valve 11. From the heat absorber the liquάd flows by gravity down into the collecting vessel and continues to the pump.
_OMPI_ When the heat control means is set for a lower heat emission the position of the shunt valve 11 is changed in such a way that a certain proportion of the liquid is pumped from the pump via the shunt line 12 direct to the collecting vessel 9. The amount of liquid that is pumped via the shunt line 12 is dependent upon the setting of the heat control means. By reduced supply of liquid to the heat emitter the heat emission to the space to be heated is diminished. An infinitely variable heat control is thus achieved. When a lower amount of heat is supplied to the heat emitter the heat supply to the heat absorber 3 is reduced. The constriction 13 having the same cross- sectional area regardless of the liquid supply to the heat absorber the liquid level in said absorber.will sink.. At the same time the heat absorbing surface in the heat ab- sorber 3 is diminished, which reduces the risk that the liquid in the heat absorber will boil.
When the heat control means is closed the pump is made inoperative, the heat absorber being emptied in that the liquid flows down into the collecting vessel 9. •

Claims

1. A heating system for vehicles, particularly ve¬ hicles with air-cooled engines, comprising a heat ab¬ sorber (3) equipped with an inlet (1) and an outlet (2) for absorption of heat from the exhaust gases of the en- gine, a heat emitter (6) equipped with an inlet (4) and an outlet (5) which are connected to the inlet (1) and outlet (2) of the heat absorber by means of a pipe cir¬ cuit (8, 8') for transporting heat-carrying liquid (7), said heat emitter being adapted to emit heat to a space to be heated, a collecting vessel (9) connected to the heat absorber (3) and liquid transporting means (10) in¬ serted in the pipe circuit, wherein the collecting ves¬ sel (9) is inserted in the pipe circuit (8) between the outlet (2) of the heat absorber (3) and the inlet (4) of the heat emitter (6) and disposed on a lower level than the heat absorber, whereby the liquid by gravity will flow into the collecting vessel in order, when the system is inoperative, to empty at least the heat ab¬ sorber (3) of liquid.
2. A system as claimed in claim X, wherein the liquid transporting means (10) is inserted in the pipe cir¬ cuit between the collecting vessel (9) and the heat emit¬ ter (6) and disposed on a lower level than the collect¬ ing vessel.
OMPI
EP79901198A 1978-09-22 1980-04-22 Heating system for vehicles Withdrawn EP0020422A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7809973A SE7809973L (en) 1978-09-22 1978-09-22 SUPPLY
SE7809973 1978-09-22

Publications (1)

Publication Number Publication Date
EP0020422A1 true EP0020422A1 (en) 1981-01-07

Family

ID=20335893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79901198A Withdrawn EP0020422A1 (en) 1978-09-22 1980-04-22 Heating system for vehicles

Country Status (5)

Country Link
EP (1) EP0020422A1 (en)
FI (1) FI792904A (en)
NO (1) NO793029L (en)
SE (1) SE7809973L (en)
WO (1) WO1980000678A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107139954A (en) * 2017-06-30 2017-09-08 马宏 Thermal conversion engine exhaust heat utilizes device
CN107264556A (en) * 2017-06-30 2017-10-20 马宏 Thermal conversion engine exhaust heat utilizes the application of device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE532606C (en) * 1929-03-20 1931-08-31 Franz Teichmann Heater for motor vehicles
GB439725A (en) * 1934-12-06 1935-12-12 Alfred Graham Slee Improvements in or relating to interior heating apparatus for motor vehicles propelled by internal combustion engines
US2105193A (en) * 1935-06-17 1938-01-11 Walter A Kysor Engine cooling and heating means for motor vehicles
GB536521A (en) * 1940-06-12 1941-05-16 Serck Radiators Ltd Improvements relating to air heating systems
GB654768A (en) * 1948-03-27 1951-06-27 Thomas Mort Bettney Improvements in or relating to heating systems for the bodies of self-propelled vehicles
GB726992A (en) * 1952-07-24 1955-03-23 Thompson Prod Inc Improvements in or relating to heating apparatus for heating an air space from heat generated in a water cooled internal combustion engine
CH474380A (en) * 1968-07-24 1969-06-30 Hossmann Hans Procedure for heating rooms

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8000678A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107139954A (en) * 2017-06-30 2017-09-08 马宏 Thermal conversion engine exhaust heat utilizes device
CN107264556A (en) * 2017-06-30 2017-10-20 马宏 Thermal conversion engine exhaust heat utilizes the application of device

Also Published As

Publication number Publication date
NO793029L (en) 1980-03-25
SE7809973L (en) 1980-03-23
FI792904A (en) 1980-03-23
WO1980000678A1 (en) 1980-04-17

Similar Documents

Publication Publication Date Title
EP2013549B1 (en) Absorption-type cooling device and associated motor vehicle
US5766313A (en) Hydrocarbon recovery system
US3610220A (en) Fuel tank construction
US4177928A (en) Device for cleaning windshields, headlamp lenses, rear view mirrors, reflector means or the like of a vehicle
US4016836A (en) Hydride fuel system
US3841089A (en) Fuel reclaiming system
EP0091356B1 (en) Energy recuperation method in a power plant, and power plant using said method
US3756291A (en) Gasoline vapor recovery system
US4420942A (en) Nitrogen liquid to gas converter employing water heat exchangers
US4226605A (en) Flameless vaporizer
US3229472A (en) Method and apparatus for pumping and vaporizing liquefied gas
CN110062844A (en) Equipment for being mixed into fluid in the combustion air of internal combustion engine
EP0020422A1 (en) Heating system for vehicles
FR2482906A1 (en) IMPROVEMENTS IN COOLING SYSTEMS OF MOTORS OF RADIATOR VEHICLES ASSOCIATED WITH AN EXPANSION TANK
US3570261A (en) Cryogenic pumping system
CN109339981A (en) A kind of pressure charging system of the cold helium of carrier rocket kerosene case
JP2017524856A (en) Exhaust gas system, method for controlling exhaust gas system and computer program product
EP0535158A1 (en) Single and multistage refrigeration system and method using hydrocarbons
CA2224389C (en) Hydrocarbon recovery system
US1806712A (en) Cooling system foe
US5836413A (en) Hovercraft capable of storing energy and air-cushion producing method therefor
US1892571A (en) Device for heating automobile motors
US3119231A (en) Apparatus for preventing discharge of contaminants from an automotive vehicle
CN111512028B (en) Vehicle suction system
US2233249A (en) Cooling device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): FR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19801229

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SELLIN, GUNNAR