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System for using the waste heat of a combustion engine with anti-freeze device

A technology of internal combustion engine and waste heat circuit, which is applied in the direction of internal combustion piston engine, combustion engine, mechanical equipment, etc., and can solve the problems of medium freezing and so on.

Active Publication Date: 2017-09-01
MAN SONDERFAHRZEUGE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Especially in the vehicular application of such systems, the big disadvantage of water is the problem of freezing of the medium

Method used

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  • System for using the waste heat of a combustion engine with anti-freeze device
  • System for using the waste heat of a combustion engine with anti-freeze device
  • System for using the waste heat of a combustion engine with anti-freeze device

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Embodiment Construction

[0038] figure 1 Shown is a waste heat utilization circuit with which the waste heat of an internal combustion engine is converted into mechanical work. For this purpose, the waste heat generated in the internal combustion engine or in the exhaust system is first passed to the primary cooling circuit before it is supplied to the waste heat circuit designed as a secondary heat circuit. The main components required for waste heat utilization are: evaporator 1, in which the working fluid changes from liquid to vapor state; expansion unit 2, in which the working fluid in vapor state is decompressed, thereby outputting mechanical work ; Condenser, in which the working fluid is liquefied to its initial state before being evaporated.

[0039] elaborated below figure 1 The specifics of the device configuration shown in. The working fluid is input from the supply tank 5 into the waste heat utilization circuit by means of the supply pump 12 . The quantity of working fluid which is fe...

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PUM

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Abstract

Apparatus for utilizing the waste heat of an internal combustion engine having a waste-heat circuit, in which a working medium circulates and by which waste heat of the internal combustion engine and / or exhaust-gas heat are / is converted into mechanical work, an evaporator (1), in which the working medium is converted at least partially into a vaporous physical state by way of absorption of waste heat from the internal combustion engine, and an expansion unit (2) for providing the drive energy, in which expansion unit (2) the at least partially vaporous working medium is relieved, being provided in the waste-heat circuit, and having a condenser (3), in which the working medium is converted into a liquid physical state, at least one anti-freeze device (4) being provided in the waste-heat circuit, which anti-freeze device (4) prevents damage in the waste-heat circuit, which damage is caused by freezing of the working medium.

Description

[0001] This application is a divisional application of the Chinese patent application CN201110021255.2 with the filing date of January 14, 2011, entitled "System for Waste Heat Utilization of Internal Combustion Engine with Antifreeze Unit". technical field [0002] The invention relates to a method and a device for utilization of waste heat of an internal combustion engine with a waste heat circuit in which a working medium circulates and through which the waste heat of the internal combustion engine is converted into mechanical work. The waste heat circuit has: an evaporator in which the working fluid is at least partially converted into a vapor-like state; an expansion unit for providing mechanical work in which the at least partially vapor-like working fluid is reduced pressure; condenser in which the working fluid is transformed into a liquid state of matter. Background technique [0003] In order to be able to achieve fuel savings, in particular for vehicle internal co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02G5/04
CPCF02G5/04F01K23/065F01K25/10F01N5/02F02G5/00Y02T10/12
Inventor G.拉布M.劳普J.克拉默
Owner MAN SONDERFAHRZEUGE AG