697results about "Coolant flow control" patented technology

The invention relates to a paraffin type thermostat. The paraffin type thermostat comprises a main valve 1, a cover and seal gasket assembly 2, an upper support 3, a rubber pipe 4, a valve seat 5, a vent hole 6, a lower support 7, paraffin 8, an inductor 9, a bypass valve 10, a central rod 11 and a spring 12. The upper support, the lower support and the valve seat of the thermostat are riveted into a whole. The upper end of the central rod is fixed to the center of the upper support. The lower portion of the central rod is inserted into a central hole of the rubber pipe. The lower end of the central rod is conical. A cavity between the rubber pipe and a shell of the inductor contains the paraffin. The upper portion and the lower portion of the shell of the inductor are provided with the main valve and the bypass valve which are in linkage. The vent hole is formed in the main valve. The paraffin type thermostat is high in heat conductivity and guarantees that an engine cannot be excessively cold.

A cooling system for vehicles and a control method thereof improves indoor heating performance and fuel efficiency by controlling a flow rate of a coolant passing through a heater core together with an EGR cooler. A coolant having an increased temperature is first supplied to the heater core side through a flow stagnancy control to rapidly increase the temperature of the coolant flowing in the heater core, thereby improving heating performance. A warm-up feature is improved through an exhaust heat recovery function by a heat exchange between the exhaust gas and the coolant in the EGR cooler, thereby improving efficiency of fuel.

The invention provides a brushless fan assembly adaptive to a brush control mode and an automobile cooling system. The brushless fan assembly comprises a brushless fan unit, a brush control unit and a control unit, the compatible interface unit is matched with an input interface unit of an original brush fan assembly of the automobile so as to receive the gear control signal; the gear identification unit responds to the gear control signal and outputs a corresponding gear identification signal; and the brushless control unit is respectively connected with the gear identification unit and the brushless fan unit, responds to the gear identification signal and generates a corresponding driving signal so as to control the brushless fan unit to operate at a target operation gear corresponding to the brush fan assembly. According to the technical scheme, on the premise that an original automobile cooling control unit and control logic thereof are not changed at all and original automobile wire harnesses are not changed, direct replacement and plug-and-play of the brushless fan assembly with better performance to the brush fan assembly are achieved, the requirement for convenience of automobile after-sale maintenance is met, and after-sale maintenance cost and operation difficulty are reduced.

The invention discloses a regulation and control method and device for a vehicle cooling system, and the method comprises the steps: collecting a temperature signal and a flow speed signal of cooling liquid in real time, obtaining an engine rotating speed signal and a load signal, carrying out the fusion processing, and generating a real-time working condition parameter of the system. And on the basis of the real-time working condition parameters of the system, a pre-calibrated degassing flow control mapping table is inquired, target degassing flow is obtained through calculation, and an adjustment value of the opening degree of the degassing channel is determined accordingly. Generating a control instruction to drive an actuator to adjust the opening degree of the degassing channel according to the adjustment value of the opening degree of the degassing channel in combination with an environment temperature signal; and meanwhile, an adjusted cooling liquid temperature feedback signal is collected, and the actual heat state parameter of the system is calculated based on the difference value between the cooling liquid temperature feedback signal and the target temperature. Therefore, the system has the advantages of dynamically responding to the working condition change of the engine, optimizing the flow distribution of the cooling liquid and maintaining the pressure balance of the system, and can effectively improve the heat management efficiency and the system reliability.

The present invention relates, in general, to systems and methods for generating hydrogen from ammonia on-board vehicles, where the produced hydrogen is used as fuel source for an internal combustion engine along with ammonia. The present invention utilizes ammonia not only as a co-fuel for the engine, but also as a heat-exchange medium used by a cooling system for the internal combustion engine, such that the heat is transferred from hot engine coolant to the ammonia, thereby cooling the engine coolant, and also pre-heating the ammonia.

A fluid control system with a fast fill valve (200) for expedited filling and draining of closed-loop systems allowing for temporarily opening the loop to allow filling without a separate vacuum process The valve operates in two positions: an open position for rapid, unidirectional fluid ingress and passive air egress and a closed position for a secure, sealed state during normal operation. Some examples include vacuum assisted air egress in parallel with filling.

The application provides a brushless fan assembly and cooling system based on adaptive speed regulation of a control unit temperature, which comprises a brushless fan unit, a compatible interface unit, a gear recognition unit and a brushless control unit, wherein the brushless control unit comprises a temperature acquisition module, a microcontroller and a brushless motor drive circuit. The gear recognition unit outputs a gear recognition signal in response to a gear control signal received by the compatible interface unit, the temperature acquisition module is used to acquire the temperature of the brushless control unit and output a temperature signal, the microcontroller outputs a speed control signal corresponding to a target speed according to the gear recognition signal and the temperature signal, and the brushless motor drive circuit drives the brushless fan unit to operate at the target speed according to the speed control signal. On the basis of realizing the lossless replacement of the brushless fan assembly to the brushed fan assembly, the application can adaptively regulate the speed according to the temperature of the brushless control unit, thereby improving the heat dissipation effect and product reliability.

An HEV mode and a BEV mode is a hybrid electric vehicle capable of traveling, comprising: a radiator; an air conditioner including a condenser and a pressure sensor for performing air conditioning in a room; a cooling fan that operates in response to the rotation of the engine to blow cooling air to the radiator and the condenser; and a control unit that controls the operation of the engine and the air conditioner, wherein the control unit reduces the amount of heat dissipation of the condenser when the high pressure of the cooler detected by the pressure sensor during traveling in BEV mode becomes equal to or higher than the first pressure.

To provide a motor vehicle with a cooling circuit, wherein a battery can be heated by means of the waste heat from a drive of the motor vehicle without heat exchange via a chiller of the cooling circuit, a motor vehicle (100) with a cooling circuit (10) comprising several cooling lines (11, 13, 15, 19, 33) is proposed, wherein a battery (12) is arranged in a first cooling line (11), wherein a chiller (14) is arranged in a second cooling line (13), and wherein a drive (16) and / or power components (17) are arranged in a third cooling line (15), wherein the cooling circuit (10) further comprises at least one actuating means (22, 23), wherein the several cooling lines (11, 13, 15, 19, 33) can be interconnected by positioning the actuating means (22, 23) to implement several operating modes of the cooling circuit (10), and wherein - in a first operating mode the first cooling circuit (11) and the second cooling circuit (13) are connected, so that the battery (12) and the chiller (14) are supplied with coolant, and wherein - in a second operating mode the first cooling line (11) and the third cooling line (15) are connected so that the battery (12) and the drive (16) and / or the power components (17) are supplied with coolant, and that the second cooling line (13) is insulated so that the chiller (14) is not supplied with coolant.

The present application relates to a kind of fire diesel engine low temperature combustion efficiency promotion method.Fire diesel engine low temperature combustion efficiency promotion method, starting stage does not need to rely on external point heating equipment, preheating is carried out to intake and fuel respectively using exhaust waste heat and the integrated effect of repeated start, repeated heating under the control of multiple parameters, effectively guarantee the reliability of fast emergency start and emergency start under low temperature environment, through the integrated effect of ultrasonic atomization, multiple parameter collaborative control, effectively solve the problem of poor fuel atomization, mixture is not uniform, combustion is insufficient under low temperature condition, the combustion efficiency under low temperature condition is significantly improved, through the mutual coordination of residual humidity detection, ultrasonic auxiliary water removal unit in shutdown stage, the reliability of next start can be guaranteed.Therefore, the above-mentioned fire diesel engine low temperature combustion efficiency promotion method adapts to the scene demand of fire emergency without external power supply, fast response.

The invention discloses a coolant temperature ultra-high limit fault optimization strategy, relates to a coolant control technology, and solves the technical problems of high fault misjudgment rate, high fault missed judgment risk and poor flexibility of a fault diagnosis strategy with a single temperature threshold. The strategy comprises the steps that engine operation parameters are collected, and the on-off state of a multi-state switch is determined according to the engine operation parameters; and setting a water temperature limit value according to the on-off state of the multi-state switch. The technical problem that a single threshold value adapts to multiple working conditions is solved, and the accuracy of judging the working conditions of the engine is improved.

In the valve assembly, a valve seat comprises a valve hole and a valve hole edge portion. A valve stem moves along its central axis, causing the valve body to contact and separate from the valve hole edge portion to open and close the valve hole. The valve body comprises a sealing element and a convex portion. An end face on a projecting side of the convex portion is a tapered surface of the convex portion. A surface on the valve hole side at a pointed end of the valve hole edge portion is a tapered surface of the valve hole edge portion.An inclination angle of the tapered surface of the convex part with respect to a sealing surface is greater than an inclination angle of the tapered surface of the valve hole edge part with respect to the sealing surface, and a corner part of the convex part, at which an outer diameter of the valve body at the tapered surface of the convex part is minimal, is arranged on an inner side in a radial direction of the valve hole than a part with a minimum diameter of the tapered surface of the valve hole edge part, at which an inner diameter of the valve hole at the tapered surface of the valve hole edge part becomes minimal.

A cooling module includes: a manifold housing made of resin and including an accommodation portion having an opening and at least a part of a flow path allowing a fluid to flow therethrough; a rotary valve accommodated in the accommodation portion via the opening; and a cover body made of resin and resin-bonded to the manifold housing to cover the opening of the accommodation portion and the part of the flow path.

A control device (DC) equips a vehicle (V) comprising an electric drive machine (MME) supplied with lubricating oil by a first circuit (C1) connected to a lubricating oil / heat transfer fluid exchanger (EC), and an inverter (OM) electrically supplying the drive machine (MME) and cooled by the heat transfer fluid before it reaches the exchanger (EC) via an intermediate part (PI1) of a second circuit (C2). This device (DC) includes a valve (VC) comprising an inlet (EV) and a first outlet (SV1) connected to two sub-parts (SP1, SP2) of this intermediate part (PI), and a second outlet (SV2) connected to a bypass conduit (CC) connected to the second circuit (C2) downstream of the heat exchanger (EC). The heat transfer fluid is diverted to the first (SV1) or second (SV2) outlet when a first representative value of the lubricating oil temperature is above or below a chosen threshold. Figure 1

The invention relates to a multi-way valve for a cooling system of a motor vehicle, having a valve housing (12) which has a plurality of inlets (14) and a plurality of outlets (20) and delimits a cylindrical valve chamber (16), wherein the inlets (14) and the outlets (20) open into the cylindrical valve chamber (16), a valve unit (18) which is arranged within the cylindrical valve chamber (16) of the valve housing (12) and can be rotated about a rotation axis between a plurality of switching positions by means of an actuator (23), wherein, depending on the switching position of the valve unit (18), different inlets (14) can be fluidically connected with different outlets (20), wherein the valve unit (18) has a plurality of fluid channel structures (22, 24, 26, 28, 30, 32, 34; 52, 54, 56, 58, 60, 62, 64; 70, 72, 74, 76, 78, 80, 82; 88, 90, 92, 94, 96, 98, 100) which are staggered in a circumferential direction from one another, wherein each switching position is respectively assigned a fluid channel structure.

A cooling system for an electric construction machine provided with an electric pump device driven by power supplied by a battery, the cooling system being provided with: a plurality of cooling system devices that respectively cool a plurality of cooling objects including the battery and the electric pump device, the plurality of cooling system devices include at least one first cooling system device and at least one second cooling system device, and the first cooling system device and the second cooling system device are respectively arranged on one side of the first direction and the other side of the first direction across the battery.

The invention refers to an automotive coolant multiway valve device (100) for fluidically switching at least five device coolant ports (21-26), wherein a static valve housing (20) is provided which defines a vertical circular valve cavity (30) and which defines at least five housing ports (31-36) being fluidically connected to the device coolant ports (21-26), wherein every housing port (31-36) has a substantially identical housing port opening angle (a) of at least 25°, wherein all housing ports (31-36) are arranged in two vertical housing port groups (310, 340) of at least two housing ports (31-33, 34-36) each, wherein a rotatable valve body (40) is provided which is arranged within the circular valve cavity (30) and which is rotatable around a vertical rotation axis (A40) within a limited total rotation sector (S) of less than 360°, wherein the valve body (40) defines first pair of two adjacent vertical groups (41, 42) of valve body ports (401-406) and a second pair of adjacent vertical groups (43, 44) of valve body ports (407-412), each valve body port (401-412) having an opening angle (a') substantially equal to the housing port opening angle (a), and wherein the valve body (40) additionally defines at least one separate vertical deaeration channel (60) vertically extending over the functional valve height (H) and fluidically separated from all valve body ports (401-412) by a lateral deaeration channel wall (62) of the valve body (40), so that in an intermediate valve deaeration position of the valve body (40) all housing ports (31-36) are fluidically connected with each other.

This relates to a system and method for generating hydrogen from ammonia on a vehicle. [Solution] The present invention relates to a system and method for producing hydrogen from ammonia on a vehicle, wherein the produced hydrogen is used together with ammonia as a fuel source for an internal combustion engine. The present invention utilizes ammonia not only as a co-fuel for the engine but also as a heat exchange medium used in a cooling system for the internal combustion engine, thereby transferring heat from the high-temperature engine coolant to the ammonia, which cools the engine coolant and preheats the ammonia into a gaseous state, providing a system and method for producing hydrogen from ammonia on a vehicle for use as a fuel source for an internal combustion engine.

The invention discloses a water tank and a cooling system.The water tank comprises a tank body and an adjusting part, the tank body comprises a balance cavity, a liquid storage cavity, a first inlet, a first outlet, a second inlet and a second outlet, the balance cavity and the liquid storage cavity are separated from each other, the first inlet and the first outlet communicate with the balance cavity, and the second inlet and the second outlet communicate with the liquid storage cavity; cooling liquid in the system liquid storage tank can enter the balance cavity through the first inlet so as to reduce the pressure in the system liquid storage tank, the liquid storage cavity receives and stores the cooled cooling liquid through the second inlet so as to cool the balance cavity, and the cooling liquid in the liquid storage cavity can be supplemented to the system liquid storage tank through the second outlet. The adjusting part is arranged on the box body and communicates the balance cavity with the outside of the box body so as to adjust the pressure in the balance cavity. The water tank can adjust the pressure in the balance cavity through the adjusting piece, so that the pressure among the balance cavity, the system liquid storage tank and the outside of the tank body is kept balanced, the tank body cannot expand when heated or shrink when cooled, and the reliability of the water tank is high.

In a fuel cell cooling device, sliding damage to a piston and the deterioration of sealing performance are prevented despite using a simple structure in which a portion sliding with the piston is made of a brass bush and a simple and inexpensive method of setting the assembly of the brass bush to a press-fitted state by light press-fitting and ball burnishing.　Provided is a stainless steel cylindrical guide member (32) slidably holding a stainless steel piston (11a) provided at the open end of a bottomed cylindrical case (31) containing a thermal expansion body and moving forward and backward according to the expansion and contraction of the thermal expansion body. A brass bush (33) is fitted into the inner peripheral portion of the cylindrical guide member (32) by light press-fitting and subjected to precise finishing on the inner peripheral surface, for example, by ball burnishing, to be expanded radially by the pressure from the inside and press-fitted.

This invention relates to and provides a vehicle in which multiple heat exchangers are mounted in the engine compartment, allowing for optimal distribution of driving air (cooling air) according to conditions. One aspect of the vehicle includes: a first heat exchanger disposed in the engine compartment for cooling the engine; a second heat exchanger disposed in the engine compartment for recovering exhaust heat from the engine; a louver component for opening and closing a grille opening located at the front of the engine compartment; a first detector for detecting feedforward parameters indicating a potential increase in load on either the first or second heat exchanger; a second detector for detecting feedback parameters indicating an increase in load on either the first or second heat exchanger; and a control device for controlling the opening and closing of the louver component, which, based on the feedforward and feedback parameters, adjusts the opening of the louver component to direct driving air through the grille opening to either the first or second heat exchanger.

Vehicle thermal management system, featuring: an integrated thermal management valve (ITM) (1) for receiving engine coolant through a coolant inlet (3A) connected to an engine coolant outlet (112) of an engine (110) and for distributing the engine coolant flowing towards a radiator (300) via a coolant outlet path (3B) connected to a heating core (200) and the radiator (300); a water pump (120) arranged at a front end of an engine head coolant inlet (111) of the engine (110); a coolant branch flow path (107) branched off at a front end of the engine coolant inlet such that it is connected to an exhaust gas recirculation (EGR) cooler (500); and an intelligent single valve (SSV) (400) for adjusting an engine coolant flow in the EGR cooler flow path direction in the coolant branch flow path (107), characterized by the fact that The coolant outlet path (3B) has a radiator outlet path (3B-1) connected to the radiator (300), a heater outlet path (3B-2) connected to the heater core (200), and an EGR outlet hole (3B-3) connected to the EGR cooler (500), which is connected to the coolant branch flow path (107).

A system and method for our selectively controlling an operational of a thermal management system of a mobile charging system. Based on satisfaction of one or more predetermined thresholds, the thermal management system can operate in a first, high power mode or a second, low power mode. During operation in the first power mode, electrical power can be supplied from a battery for operation of an impeller that can facilitate an air flow over a heat exchanger. During operation in the second power mode, the impeller can be deactivated, and ram air can instead be used to control at least the temperature of the heat exchanger, thereby conserving electrical power of the battery. The one or more predetermined thresholds can include a ground travel speed of the mobile charging system, which can be determined using information from a location system.

The present invention introduce a multi-port valve apparatus and a thermal management system using the same that are capable of improving the temperature management efficiency of the coolant by reducing the overall package size of the valves, selectively circulating coolant to a plurality of coolant flow paths through the valves with guaranteed functionality, and facilitating separate or mixed distribution of coolant depending on circumstances.

The purpose is to suppress the deterioration of the solder used in radiators. [Solution] The control unit of the on-board device determines whether a vehicle equipped with a radiator using solder has been idling for a predetermined period of time or longer. The control unit of the on-board device also determines whether the radiator fan that air-cools the radiator is running. The control unit of the on-board device also determines whether there are passengers inside the vehicle. If the vehicle has been idling for a predetermined period of time or longer, the radiator fan is running, and there are no passengers inside the vehicle, the control unit of the on-board device limits the rotation speed of the radiator fan.

Disclosed herein is an improved gas dehumidification system comprised of an ambient air-cooler for cooling a circulating coolant. A central pump is connected to the ambient air cooler to receive and circulate a part of the circulating coolant to a first heat exchanger and another part to a second heat exchanger, fluidly coupled with the central pump. A dehumidification unit is in connection with the first and second heat exchangers and to receive the cooled coolant to dehumidify a gas passing through dehumidification unit and directs back the coolant to ambient air-cooler through the second heat exchanger to re-utilize the coolant for another cycle of gas dehumidification.

The invention relates to a fan control system and method for a vehicle. A fan control system for a vehicle may include: a vehicle speed sensor for sensing a vehicle speed; the engine cooling liquid temperature sensor is used for sensing the temperature of engine cooling liquid; the fan is arranged adjacent to the engine coolant radiator and is used for providing flowing air for the engine coolant radiator; and a controller configured to determine whether the vehicle is in an idle state based on a vehicle speed sensed by the vehicle speed sensor, determine whether a temperature of the cooling liquid is in a first temperature range based on a temperature of the cooling liquid sensed by the engine cooling liquid temperature sensor when the vehicle is in the idle state and the fan is not operating, and control the engine cooling liquid when the vehicle is in the idle state and the fan is not operating. And when the temperature of the cooling liquid is within the first temperature range, whether a fan forced operation condition is met or not is determined, and when the fan forced operation condition is met, the fan is made to operate for first preset time.

A vehicle may include a body; a plurality of heat producing components within the body; an air intake through which air is provided from outside the body to dissipate heat from the heat-producing components; a shutter configured to control an amount of airflow through the air intake through control of a position of the shutter; and a controller configured to control the position of the shutter based on a cost function, wherein the cost function accounts for an aerodynamic drag of the vehicle and a rate of heat extraction from the heat-producing components, wherein the aerodynamic drag of the vehicle and the rate of heat extraction from the heat-producing components each depend on the position of the shutter.

An expansion tank is applied for a cooling system including a fluid storage tank for storing a coolant. The expansion tank includes a tank body and an adjusting member. The tank body includes an air chamber, a fluid storage chamber, a first inlet, a first outlet, a second inlet, and a second outlet. The first inlet / outlet are connected to the air chamber, and the second inlet / outlet are connected to the fluid storage chamber. The first inlet is connected to the fluid storage tank, such that the coolant enters the air chamber. The fluid storage chamber can receive the coolant after being cooled through the second inlet. The second outlet is further connected to the fluid storage tank, such that the cooled coolant is supplemented to the fluid storage tank. The adjusting member can connect the air chamber with an ambient environment.