Abstract:
A device and a process for cooling an engine are disclosed in which at least one coolant pump (22) mechanically driven by the engine (10) to be cooled and at least one coolant pump (23, 54) electrically controlled by an electronic switch gear (24) are arranged in at least one cooling circuit of said engine. The output of the electric pump (23, 54) is established in function of characteristic operating parameters of the engine (10) to be cooled and of other parameters, while the mechanical pump (22) is designed to provide a basic output. A heat exchanger (16) which functions as a radiator is arranged in a first coolant section (15) of the cooling circuit. The cooling capacity of said heat exchanger can be varied by means of a radiator shutter (36) and a fan (37). A second heat exchanger (20) is arranged in another coolant section (19) or in a separate cooling circuit. The heat dissipated by the second heat exchanger is used for heating purposes or to further cool the engine.
Abstract:
Procédé de commande, lors d'un démarrage à froid, d'un circuit de refroidissement par fluide caloporteur d'un moteur à combustion interne (1) équipant un véhicule automobile, 1e circuit de refroidissement étant mufti en aval du moteur à combustion interne (1) d'un moyen de coupure (5) du débit apte à établir une discontinuité du débit du fluide caloporteur initialement dans une position non passante, caractérisé en ce qu'il comprend des étapes au cours desquelles : on détermine une température caractéristique de l 'état thermiqueυe d'une zone spécifique du moteur à combustion interne par application d'un modèle en fonction de la température à l'intérieur du moteur à combustion interne; et on commute le moyen de coupure (5) du débit dans une position passante si la température caractéristique de l'état thermique de la zone spécifique du moteur à combustion interne est supérieure à une température limite.
Abstract:
Various control strategies and techniques for controlling a variable speed fan in an internal combustion engine are provided. The various control techniques improve fuel economy by operating the fan at a speed sufficient to cool the engine, while avoiding unnecessarily higher speeds that result in poor fuel economy. Further, the fan may be completely disabled at cold start up to avoid over cooling, particularly in an engine using a charge air cooling system.
Abstract:
A sensor assembly that includes a mounting frame; and a support platform coupled with the mounting frame. The support platform has a top platform surface with a circuit board disposed thereon. The circuit board is operably configured with a secondary microcontroller and a Hall effect sensor. There is an inner sensor housing configured to extend out and around the circuit board and the support platform. There is a first magnet coupled to an underside of the inner sensor housing. There is a rotating member configured with a plurality of blades and a rotating member mounting ring, the rotating member is proximately disposed on top of the inner sensor housing.
Abstract:
본발명은 선박의 엔진룸팬 장치 및 제어방법에 관한 것으로, 선박의 엔진룸에 설치되는 선박의 엔진룸팬 장치에 있어서, 상기 엔진룸 팬은 엔진룸팬(10), 정화룸팬(20) 및 디젤발전기룸팬(30)으로 이루어지되, 엔진룸에는 압력센서와 온도센서가 각각 하나씩 설치되고, 정화룸(200)에는 온도센서가 설치되고, 디젤발전기룸(300)에도 압력센서가 하나 설치되어,상기 엔진룸(100)의 온도가 상부설정온도 이상이 되면 엔진룸팬(10), 정화룸팬(20) 및 디젤발전기룸팬(30)의 속도를 모두 최고속도로 가동하는 최고속도모드로 가동하며, 엔진룸(100)의 온도가 하부설정온도 이하가 되면 엔진룸팬(10), 정화룸팬(20) 및 디젤발전기룸팬(30)의 속도를 최고속도 이하로 가동하는 가변속도모드로 가동하는 것으로, 본발명은 엔진룸 내부 압력 및 온도를 일정하게 유지함으로써, 메인엔진 등에 필요한 연소공기 내지 냉각공기를 적정하게 공급하며 이에 따라 에너지 절감이 되는 현저한 효과가 있다.
Abstract:
The present invention relates to an arrangement and a method for warming of coolant in a cooling system after a vehicle has been set in motion from cold. The arrangement comprises a control unit (22)adapted to assessing whether the coolant in the cooling system is at a lower temperature(T C ) than an operating temperature(T D ) and whether the air flowing through the coolant cooler(18) is at a temperature(T A1 , T A2 ) which is higher than the coolant's temperature(T C ), and, if these conditions are fulfilled, the control unit (22) is adapted to placing the valve means (17) in the second position so that the coolant is led to the coolant cooler(18), in which the coolant is warmed by the air flowing through the coolant cooler(18).
Abstract:
The invention subject to the application is related to a multiplex hydrofan control system (100) which prevents the spreading of fire due to air circulation created by said hydrofan (7) by preventing the continuous refreshing of air by the hydrofans (7) used in engine cooling systems in the case of a fire in the engine chamber of busses.