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1.发明授权Heater, in particular vehicle auxiliary heater, with a temperature safety mechanism 失效加热器，特别是车辆辅助加热器，具有温度安全机制
公开(公告)号：US4944454A
公开(公告)日：1990-07-31
申请号：US313081
申请日：1989-02-22
CPC分类号： F24H9/2035 , F23N5/025 , F23N2025/08 , F23N2041/14
摘要： A water type heater, in particular a vehicle auxiliary heater having a temperature safety mechanism, intended to prevent overheating damage to temperature-sensitive parts of the heater, that utilizes a contact sensor that is in heat conducting connection with the heat exchanger. As a heat conducting connection, a direct physical contact between the heat exchanger and a water jacket casing of the heater can be utilized that is, preferably, achieved with the aid of a projection, and optionally, a diametrically opposite projection acting as countersupport. In a modified embodiment, an elastic body that conducts heat well can be placed in a compressed state between the jacket casing and the heat exchanger. The contact sensor then lies against the outer surface of the casing as the temperature safety mechanism. The elastic body that conducts heat well is suitably made in the form of a disk made of a graphite material. In other embodiments, the contact sensor can be spring-mounted or at least a head part thereof can be elastically deformable. In this way, the contact sensor can extend into direct engagement with the heat exchanger without being adversely affected by thermal expansion effects experienced by the heat exchanger and jacket casing during operation of the heater.
摘要翻译： 一种水型加热器，特别是具有温度安全机构的车辆辅助加热器，其旨在防止对加热器的温度敏感部件的过热损坏，其利用与热交换器导热连接的接触传感器。 作为导热连接，可以利用热交换器和加热器的水套套管之间的直接物理接触，其优选地借助于突出部和可选地作为反支撑件的直径相对的突出部来实现。 在改进的实施例中，可以在夹套壳体和热交换器之间以压缩状态放置良好地传导热量的弹性体。 然后接触传感器作为温度安全机构抵靠壳体的外表面。 良好地传导热量的弹性体适当地以由石墨材料制成的盘的形式制成。 在其他实施例中，接触传感器可以是弹簧安装的，或者至少其头部可弹性变形。 以这种方式，接触传感器可以延伸成与热交换器的直接接合，而不会受到热交换器和套管在加热器运行期间经受的热膨胀效应的不利影响。
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公开(公告)号：US5050796A
公开(公告)日：1991-09-24
申请号：US487113
申请日：1990-03-02
CPC分类号： B60H1/2209 , B60H1/2203 , F23K5/20 , F24H3/065 , B60H2001/2284 , F02B3/06
摘要： A heater, in particular a motor vehicle heater operated with liquid fuel in which the fuel to be fed to the burner of the heater is preheated using the thermal energy of the combustion gases in the discharge area of the heater to guarantee reliable operation of the heater even at low temperatures, and to prevent paraffin separations, especially with diesel fuel in advance of filter devices in the fuel supply of the burner. For this purpose, a fuel preheating pipe section is provided that can be made in the form of a spiral-shaped pipe loop and that is placed in the flow of combustion gases, which have passed through the heat exchanger of the heater. Since the fuel is warmed in the fuel flow pipe before passage through the filter device, clogging of the filter device is avoided. In accordance with various embodiments the fuel preheating pipe section can be placed in an exhaust gas collecting chamber of the heater or in an exhaust gas discharge connection. Another embodiment feature includes the provision of a second heat exchanger that warms the fuel to being fed to the internal combustion engine using the liquid coolant that was previously warmed in the motor vehicle heater and which also serves as the heat exchange medium for the heat exchanger of the heater.
摘要翻译： 加热器，特别是用液体燃料操作的机动车加热器，其中待加热到加热器的燃烧器的燃料使用加热器的排放区域中的燃烧气体的热能预热，以确保加热器的可靠运行 即使在低温下也能防止石蜡分离，特别是在燃烧器的燃料供给中的过滤装置之前，尤其是柴油燃料。 为此，提供了一种燃料预热管段，其可以形成为螺旋形管道的形式并且被放置在通过加热器的热交换器的燃烧气体流中。 由于燃料在通过过滤装置之前在燃料流管中被加热，所以避免了过滤装置的堵塞。 根据各种实施例，燃料预热管部分可以放置在加热器的排气收集室中或废气排放连接中。 另一实施例的特征包括提供第二热交换器，该第二热交换器使用先前在机动车辆加热器中加热的液体冷却剂来加热燃料以供给内燃机，并且还用作热交换器的热交换介质 加热器。
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公开(公告)号：US4744217A
公开(公告)日：1988-05-17
申请号：US21687
申请日：1987-03-04
申请人： Dieter Goerlich , Wilfried Meiler , Dieter Raethel
发明人： Dieter Goerlich , Wilfried Meiler , Dieter Raethel
摘要： In an exhaust gas pipe of a diesel engine, a particle separator serving for reduction of the particle emission of the diesel engine by exhaust gas aftertreatment, a burner by which the particle separator can be regenerated by means of hot fuel gases delivered by the burner unit, the burner unit is so placed that, even in the case of leaks occurring at a flap valve for shutting off of the fuel gas line, no impairment of the operation of the burner is to be feared. For this purpose, upstream from the burner, a blower may be installed, which constantly provides air to the burner unit and the space of the fuel gas line between the flap valve and the burner unit, the air being discharged from the space into the environment by a vent pipe. In this way, exhaust gases, which leak past the closed flap valve into the fuel gas line, do not reach the burner and are discharged by the vent pipe into the enviroment. Alternatively, a suction blower can be placed in a vent pipe branching off from the space between the flap valve and the burner unit in the fuel gas line, this blower causing venting of the space, when the separator is not being regenerated and the flap valve is closed. According to another alternative embodiment, a bypass pipe goes from the space between the flap valve and the burner unit, into a section of the exhaust gas pipe located downstream from the separator. The discharge area of this bypass pipe is designed as an injector or ejector, so that a negative pressure is produced in the bypass pipe by which the space in the fuel gas line is vented.
摘要翻译： 在柴油发动机的废气管中，用于通过废气后处理来减少柴油发动机的颗粒排放的颗粒分离器，通过燃烧器单元输送的热燃气可以再生颗粒分离器的燃烧器 燃烧器单元被放置成使得即使在用于关闭燃料气体管线的阀瓣处发生泄漏的情况下，也不会担心燃烧器的操作受损。 为此，在燃烧器的上游，可以安装鼓风机，其不断地向燃烧器单元提供空气，以及在阀瓣和燃烧器单元之间的燃料气体管线的空间，空气从空间排放到环境中 通过排气管。 以这种方式，通过封闭的瓣阀泄漏到燃料气体管线中的废气不会到达燃烧器并被排放管排出到环境中。 或者，抽吸鼓风机可以放置在从燃料气体管线中的活门阀和燃烧器单元之间的空间分支的排气管中，该鼓风机使空气排出时，当分离器不被再生时， 关闭了。 根据另一替代实施例，旁通管从瓣阀和燃烧器单元之间的空间进入位于分离器下游的排气管的一部分。 该旁通管的排出面积被设计为喷射器或喷射器，从而在燃气管路中的空间排出的旁通管中产生负压。
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