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DK200600031U3 - Heating system for a vehicle - Google Patents

Heating system for a vehicle Download PDF

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Publication number
DK200600031U3
DK200600031U3 DK200600031U DKBA200600031U DK200600031U3 DK 200600031 U3 DK200600031 U3 DK 200600031U3 DK 200600031 U DK200600031 U DK 200600031U DK BA200600031 U DKBA200600031 U DK BA200600031U DK 200600031 U3 DK200600031 U3 DK 200600031U3
Authority
DK
Denmark
Prior art keywords
pump
circuit
liquid
pressure
heating system
Prior art date
Application number
DK200600031U
Other languages
Danish (da)
Inventor
Kooi Eeuwe Durk
Original Assignee
Trs Transportkoeling B V
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 Trs Transportkoeling B V filed Critical Trs Transportkoeling B V
Application granted granted Critical
Publication of DK200600031U3 publication Critical patent/DK200600031U3/en

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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
    • B60H1/02—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Air-Conditioning For Vehicles (AREA)

Description

DK 2006 00031 U3DK 2006 00031 U3

Titel: Qpvarmninqssvstem til et køretøjTitle: Heating system for a vehicle

Frembringelsen angår et køretøj, f.eks. en lastbil, er forsynet med en drivmotor til fremdrift af køretøjets hjul, et mm, der skal opvarmes, f.eks. et lastrum, og et opvarmningssystem.The production relates to a vehicle, e.g. a truck, is provided with a drive motor for propelling the wheels of the vehicle, a mm to be heated, e.g. a cargo compartment, and a heating system.

Til opvarmning af lastrum i lastbiler bruges der ofte såkaldte varmere, som markedsføres f.eks. under navnet Webasto (TM) og Eberspåcher (TM). Ulempen ved sådanne varmere er, at de er ustabile i drift, især fordi sod, uforbrændte gasser, lækkende brændstof, tomme batterier og svovlsyre kan give anledning til forskellige problemer.For heating of cargo spaces in trucks, so-called heaters are often used, which are marketed for example. under the name Webasto (TM) and Ebersaachcher (TM). The disadvantage of such heaters is that they are unstable in operation, especially because soot, unburned gases, leaking fuel, empty batteries and sulfuric acid can cause various problems.

Drivmotorens varme kan også bruges til lastrummets opvarmning. Dette påvirker dog motorstyringen og kølevandskredsløbet og forhindrer derudover, at dieselmotoren opnår hurtigt den ønskede driftstemperatur.The drive motor heat can also be used for cargo heating. However, this affects the engine control and the cooling water circuit and also prevents the diesel engine from reaching the desired operating temperature quickly.

Formålet med opfindelsen er at tilvejebringe et økonomisk, billigt og pålideligt opvarmningssystem, hvor ovennævnte ulemper, i hvert fald delvis afhjælpes.The object of the invention is to provide an economical, cheap and reliable heating system, in which the above-mentioned disadvantages are at least partially remedied.

Dette opnås ved, at opvarmningssystemet omfatter en hydraulisk pumpe, som er forbundet med drivmotoren og kan drives af denne, og et hydraulisk kredsløb, som er tilsluttet den hydrauliske pumpe, og i hvilket kredsløb der cirkuleres væske, hvor det hydrauliske kredsløb omfatter en trykventil til forøgelse af temperaturen i væsken gennem nedsættelse af dennes tryk, og en varmeveksler, hvori der afgives varme fra væsken til luft, hvilken luft opvarmer rummet.This is achieved by the heating system comprising a hydraulic pump connected to and driven by the drive motor, and a hydraulic circuit connected to the hydraulic pump, in which liquid circulating circuit, the hydraulic circuit comprising a pressure valve for increasing the temperature of the liquid by reducing its pressure, and a heat exchanger in which heat is supplied from the liquid to air which heats the room.

Væsketrykket i kredsløbet mellem pumpe og trykventilen ligger under drift fortrinsvis mellem 100 bar og 350 bar. Væsketrykket i kredsløbet efter trykventilen ligger under drift fortrinsvis under 10 bar, mere fortrinsvis ved omkring 5 bar. Pumpen har fortrinsvis en kapacitet mellem 10 og 40 liter pr. minut og yder under drift fortrinsvis en effekt mellem 3 og 23 kW.The fluid pressure in the circuit between the pump and the pressure valve is preferably between 100 bar and 350 bar during operation. The liquid pressure in the circuit after the pressure valve is preferably below 10 bar during operation, more preferably at about 5 bar. The pump preferably has a capacity of between 10 and 40 liters per liter. preferably in operation, produces an output between 3 and 23 kW.

DK 2006 00031 U3DK 2006 00031 U3

Kredsløbet er fortrinsvis et åbent kredsløb med en vaeskebeholder. Væsken er fortrinsvis olie.The circuit is preferably an open circuit with a liquid container. The liquid is preferably oil.

Frembringelsen angår yderligere et opvarmningssystem, som omfatter en hydraulisk pumpe, som er forbundet med en drivmotor, og som kan drives af denne, og et hydraulisk kredsløb, som er tilsluttet den hydrauliske pumpe, i hvilket kredsløb der cirkuleres væske, hvor det hydrauliske kredsløb omfatter en trykventil til forøgelse af temperaturen i væsken gennem nedsættelse af dennes tryk, og en varmeveksler, hvori der afgives varme fra væsken til luft, som opvarmer rummet.The invention further relates to a heating system comprising a hydraulic pump which is connected to a drive motor and which can be driven by it, and a hydraulic circuit connected to the hydraulic pump, in which circuit circulating fluid, the hydraulic circuit comprising a pressure valve for increasing the temperature of the liquid by reducing its pressure, and a heat exchanger in which heat is supplied from the liquid to air which heats the room.

Frembringelsen forklares nedenfor under henvisning til tegningen, som viser en fordelagtig udførelsesform. På tegningen vises der skematisk et opvarmningssystem.The invention is explained below with reference to the drawing which shows an advantageous embodiment. In the drawing, a heating system is shown schematically.

Ifølge tegningen opvarmes en lastbils lastrum 1 ved hjælp af et hydraulisk kredsløb, som omfatter en pumpe 2, en hydraulisk styreindretning 3, en varmeveksler 4, et oliefilter 5 og en oliebeholder 6, som er indbyrdes forbundet gennem olieledninger 23, 34, 46, 62.According to the drawing, a truck's cargo space 1 is heated by a hydraulic circuit comprising a pump 2, a hydraulic control device 3, a heat exchanger 4, an oil filter 5 and an oil container 6 which are interconnected through oil lines 23, 34, 46, 62 .

Pumpen 2, som kan yde en effekt mellem 3 kW og 23 kW, forbindes med køretøjets drivmotor via en aksel 20. Pumpen 2 pumper olie gennem ledningen 62 fra olietanken 6 med en gennemstrømning på mellem 10 og 40 liter pr. minut og ved et tryk på fra 100 til 350 bar gennem ledningen 23 til den hydrauliske styreindretning 3, som omfatter en ventil. I ledningen 34 efter ventilen hersker et tryk på omkring 5 bar. På grund af trykfaldet i ventilen bliver olien varmere. Denne varme afgives i varmeveksleren 4 til den omgivende luft i lastrummet 1. Til dette formål kan der bruges en ventilator.The pump 2, which can provide a power between 3 kW and 23 kW, is connected to the vehicle's drive motor via a shaft 20. The pump 2 pumps oil through the conduit 62 from the oil tank 6 with a flow of between 10 and 40 liters per liter. at a pressure of from 100 to 350 bar through line 23 of hydraulic control device 3, which includes a valve. A pressure of about 5 bar prevails in line 34 after the valve. Due to the pressure drop in the valve, the oil gets hotter. This heat is supplied in the heat exchanger 4 to the ambient air in the cargo space 1. For this purpose a fan can be used.

Efterfølgende føres den nedkølede olie, som nu har et tryk på omkring 1 bar, gennem oliefiltret 5 til oliebeholderen. Også olie, der lækker fra pumpen 2, kan ved hjælp af ledningen 26 afledes til oliebeholderen.Subsequently, the cooled oil, which now has a pressure of about 1 bar, is passed through the oil filter 5 to the oil tank. Also, oil leaking from the pump 2 can be discharged to the oil container by means of line 26.

DK 2006 00031 U3 3DK 2006 00031 U3 3

Den ønskede temperatur i lastrummet reguleres ved hjælp af en termostat (ikke vist), som kan tænde og slukke pumpen 2. Den regulerbare pumpe 2 styres ved hjælp af et hydraulisk styresignal via styreledningen 32 mellem pumpen 2 og styreindretningen 3 således, at der opnås en konstant gennemstrømning, som er uafhængig af akslens 20 omdrejningshastighed. Gennem denne konstante gennemstrømning og det konstante trykfald opnås der en konstant kapacitet, som er uafhængig af motorens omdrejningshastighed.The desired temperature in the load compartment is controlled by a thermostat (not shown) which can switch on and off the pump 2. The adjustable pump 2 is controlled by a hydraulic control signal via the control line 32 between the pump 2 and the control device 3 so that a constant flow which is independent of the speed of rotation of the shaft 20. Through this constant flow and constant pressure drop, a constant capacity is obtained which is independent of the engine speed.

4 4DK 2006 00031 U34 4GB 2006 00031 U3

Bruqsmodetkrav 1. Køretøj, der er forsynet med drivmotor til fremdrift af køretøjets hjul, et rum, der skal opvarmes, f.eks. et lastrum, og et opvarmningssystem, hvilket opvarmningssystem omfatter en hydraulisk pumpe, som er forbundet med drivmotoren og kan drives af denne, og et hydraulisk kredsløb, som er tilsluttet den hydrauliske pumpe, i hvilket kredsløb der cirkuleres væske, som er nyt ved, at det hydrauliske kredsløb omfatter en trykventil til forøgelse af temperaturen i væsken gennem nedsættelse af dennes tryk, og en varmeveksler, hvori der afgives varme fra væsken til luft, som opvarmer rummet.Use model requirements 1. Vehicle equipped with a drive motor for propulsion of the vehicle wheels, a space to be heated, e.g. a cargo compartment, and a heating system, said heating system comprising a hydraulic pump connected to and driven by said drive motor, and a hydraulic circuit connected to said hydraulic pump, said circuit circulating fluid, which is new in that the hydraulic circuit comprises a pressure valve for increasing the temperature of the liquid by reducing its pressure, and a heat exchanger in which heat is supplied from the liquid to air which heats the room.

2. Køretøj ifølge krav 1, som er nyt ved, at væsketrykket i kredsløbet mellem pumpen og trykventilen under drift ligger mellem 100 og 350 bar.Vehicle according to claim 1, which is new in that the fluid pressure in the circuit between the pump and the pressure valve during operation is between 100 and 350 bar.

3. Køretøj ifølge krav 1 eller 2, som er nyt ved, at væsketrykket i kredsløbet efter trykventilen under drift ligger under 10 bar.Vehicle according to claim 1 or 2, which is new in that the liquid pressure in the circuit after the pressure valve during operation is below 10 bar.

4. Køretøj ifølge krav 1, 2 eller 3, som er nyt ved, at pumpen har en kapacitet på mellem 10 og 40 liter pr. minut.Vehicle according to claim 1, 2 or 3, which is new in that the pump has a capacity of between 10 and 40 liters per liter. minute.

5. Køretøj ifølge et af de foregående krav 1-4, som er nyt ved, at pumpen har en effekt på mellem 3 og 23 kW.Vehicle according to one of the preceding claims 1-4, which is new in that the pump has a power of between 3 and 23 kW.

6. Køretøj ifølge et af de foregående krav 1-5, som er nyt ved, at kredsløbet er et åbent kredsløb med væskebeholder.Vehicle according to one of the preceding claims 1-5, which is new in that the circuit is an open circuit with a liquid container.

7. Køretøj ifølge et af de foregående krav 1-6, som er nyt ved, at væsken er olie.Vehicle according to one of the preceding claims 1-6, which is new in that the liquid is oil.

8. Opvarmningssystem, som omfatter en hydraulisk pumpe, som er forbundet med en drivmotor og kan drives af denne, og et hydraulisk kredsløb, som er tilsluttet den hydrauliske pumpe, i hvilket kredsløb der cirkuleres væske, som er nyt ved, at det hydrauliske kredsløb omfatter en trykventil til forøgelse af tem- DK 2006 00031 U3 5 peraturen i væsken gennem nedsættelse af dennes tryk, og en varmeveksler, hvori der afgives varme fra væsken til luft, som opvarmer rummet.A heating system comprising a hydraulic pump connected to a drive motor and operable therefrom, and a hydraulic circuit connected to the hydraulic pump, in which circuit liquid is circulated which is new in that the hydraulic circuit comprises a pressure valve for increasing the temperature of the liquid by reducing its pressure, and a heat exchanger in which heat is supplied from the liquid to air which heats the room.

DK 2006 00031 U3DK 2006 00031 U3

DK200600031U 2005-01-26 2006-01-26 Heating system for a vehicle DK200600031U3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1028122A NL1028122C1 (en) 2005-01-26 2005-01-26 Motor vehicle, e.g. lorry, comprises hydraulic pump connected to engine, hydraulic circuit containing pressure valve and heat exchanger

Publications (1)

Publication Number Publication Date
DK200600031U3 true DK200600031U3 (en) 2006-05-15

Family

ID=34374434

Family Applications (1)

Application Number Title Priority Date Filing Date
DK200600031U DK200600031U3 (en) 2005-01-26 2006-01-26 Heating system for a vehicle

Country Status (4)

Country Link
DE (1) DE202005005453U1 (en)
DK (1) DK200600031U3 (en)
FI (1) FI7095U1 (en)
NL (1) NL1028122C1 (en)

Also Published As

Publication number Publication date
DE202005005453U1 (en) 2005-07-21
FI7095U1 (en) 2006-05-31
NL1028122C1 (en) 2005-02-21
FIU20060025U0 (en) 2006-01-18

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UUP Utility model expired

Expiry date: 20160126