959 results about "Inlet manifold" patented technology

A three-way heat exchanger includes an airflow inlet, an airflow outlet, a heat transfer fluid inlet manifold extending proximate the airflow outlet, and a heat transfer fluid outlet manifold extending proximate the airflow outlet. The heat exchanger also includes panel assemblies each including a frame defining a heat transfer fluid channel and a membrane positioned on the frame and defining a desiccant channel. The heat transfer fluid channel is connected to the heat transfer fluid inlet and outlet manifolds for channeling a flow of the heat transfer fluid therebetween counter to the airflow direction. Each panel assembly also includes a heat transfer fluid flow guide positioned in the heat transfer fluid channel to control the flow of the heat transfer fluid counter to the airflow direction.

The invention discloses a dual-fuel engine combustion method based on internal and external cooperative injection of a methanol engine, and belongs to the field of methanol fuel engines. The combustion method is realized on the basis of combustion of a diesel / methanol dual-fuel engine with internal and external cooperative injection of a methanol engine, a combustion chamber is formed by a cylinder cover, a cylinder and a piston, an internal and external concentric needle valve oil injector and an in-cylinder direct injection methanol injector are mounted on the cylinder cover, and a methanol port injector is mounted on an intake manifold; the high-reaction-activity diesel oil adopts a double direct injection technology; the low-reactivity methanol fuel adopts an in-cylinder high-low pressure injection and port fuel injection technology, the injection pressure, the injection timing and the injection frequency of the in-cylinder methanol injector are controlled, the gas distribution phase and the valve motion law are adjusted according to the operation condition of the engine, and mixed gas concentration layering of different gradients is formed. The ratio, the injection rule and the injection timing of the diesel oil and the methanol fuel can be flexibly adjusted, and stable operation of multi-mode combustion and high-efficiency clean combustion of the engine is achieved.

The invention discloses an air-fuel ratio control method for a high-pressure direct injection engine in a diesel-natural gas dual-fuel cylinder, and relates to the technical field of engine control, and the air-fuel ratio control method comprises the following steps: collecting diesel mass flow, natural gas volume flow and natural gas component data, and determining a diesel-natural gas mixing ratio; a basic target air-fuel ratio is obtained by combining the real-time rotating speed of an engine, the load and the diesel oil-natural gas mixing proportion; based on the pressure and temperature of the intake manifold and the rotating speed of the engine, the target air-fuel ratio after model correction is obtained; the working condition load change rate is detected, the pre-optimized air-fuel ratio trajectory MAP is called, and a transient correction target value is generated; calculating the deviation between the transient correction target value and the measured value of the air-fuel ratio sensor and the deviation change rate, and outputting an air-fuel ratio correction value; and the final target air-fuel ratio is calculated and sent to an air flow control valve to execute air inlet adjustment. The method is suitable for engine application scenes requiring high-precision and self-adaptive control to improve combustion efficiency and reduce emission.

The invention discloses a pipeline system for improving the self-pressurization speed of a gas vehicle and reducing the inlet gas temperature rise and a vehicle, and relates to the technical field of vehicle power system heat dissipation, the pipeline system for improving the self-pressurization speed of the gas vehicle and reducing the inlet gas temperature rise comprises an LNG vaporization pipeline, the LNG vaporization pipeline comprises a gas cylinder and a vaporizer, and the LNG vaporization pipeline is used for outputting vaporized LNG to an engine; the supercharging pipeline comprises a supercharger and an intercooler and is used for supercharging outside air to form high-temperature and high-pressure gas and cooling the high-temperature and high-pressure gas so as to convey the high-temperature and high-pressure gas to an engine intake manifold; the cold and heat energy coupling area, a channel between the gas cylinder and the vaporizer and a channel between the supercharger and the intercooler penetrate through the cold and heat energy coupling area so that heat exchange can be conducted between the high-temperature and high-pressure air and LNG. Cold and heat exchange can be achieved through LNG cold energy and the pressurization pipeline, meanwhile, the vaporization efficiency is improved, and the heat dissipation burden of the intercooler is relieved.

A cold plate assembly includes a cold plate having first surface attachable to heat generating electronic component(s) and opposite second surface enclosed by an encapsulating lid that has inlet and exhaust ports. A distributed impingement and recovery manifold (DIRM) is positioned above the second surface of the cold plate. The DIRM includes an intake manifold presenting at least one sequence of nozzle openings providing direct impingement of cooling liquid on corresponding sections of the second surface and a return manifold which facilitates a return of exhaust cooling liquid to the exhaust port following at least one direct impingement of the portion of cooling liquid onto the corresponding sections to provide distributed, localized impingement cooling at corresponding sections of the cold plate.

Internal combustion engine (1) with at least one combustion chamber (2), at least one prechamber (3) for the at least one combustion chamber (2) and an intake system (4), wherein the intake system (4) comprises : - a liquid fuel supply (9) configured to provide a liquid fuel, - an air-fuel-mixer (10) mixing air with liquid fuel from the liquid fuel supply (9) and providing an air-fuel- mixture, - a combustion chamber intake manifold (7) leading into the at least one combustion chamber (2) and - a prechamber intake manifold (8) leading into the at least one prechamber (3), wherein the air-fuel-mixer (10) is part of the prechamber intake manifold (8) for admixing the liquid fuel to the air in the prechamber intake manifold (8).

The invention relates to a crankcase forced ventilation system and a control method thereof, a supercharged engine and a vehicle, and belongs to the technical field of engines. The crankcase forced ventilation system comprises an air inlet system of an engine, a first ventilation pipeline and a second ventilation pipeline, the air inlet system comprises an air filter, a supercharger, a throttle valve and an air inlet manifold which are sequentially communicated through pipelines, the air inlet system is communicated with an air cylinder of the engine through the air inlet manifold, and the first end of the first ventilation pipeline is communicated with a crankcase; the first ventilation pipeline is provided with a first crankcase forced ventilation PCV valve, the second ventilation pipeline is provided with a second crankcase forced ventilation PCV valve, the first end of the second ventilation pipeline is communicated with the crankcase, the second end of the second ventilation pipeline is communicated with a pipeline connected between the supercharger and the air filter, and the second ventilation pipeline is provided with a vacuum pump. When the engine is in various working conditions, waste gas in the crankcase can be smoothly circulated while the pressure in the crankcase is small.

The utility model belongs to the technical field of hydraulic pipe cleaning, and particularly discloses a hydraulic pipeline oil string washing device which comprises an oil tank, an oil supply pipeline, an oil inlet pipeline, an oil return pipeline and a cooling loop. The oil supply pipeline comprises a lightering oil pump, an oil supply valve and an oil supply main pipe; the oil inlet pipeline comprises a circulating oil pump, a first oil inlet header pipe and a first oil inlet control valve are arranged between the oil tank and the circulating oil pump, and a second oil inlet header pipe, a one-way valve and a second oil inlet control valve are arranged between the circulating oil pump and the cleaned pipeline system; the oil return pipeline comprises a fine filter, a first oil return header pipe is arranged between the cleaned pipeline system and the fine filter, a second oil return header pipe is communicated between the fine filter and the oil tank, first oil outlet control valves are arranged on the first oil return header pipe and the second oil return header pipe, the fine filter is further communicated with an impurity removal control valve, and the impurity removal control valve is communicated with an impurity removal header pipe. According to the device, safe and reliable cleaning can be provided for pipeline systems with different pressure bearing and precision requirements, and the oil temperature can be controlled to achieve the optimal cleaning effect.

To calculate an in-cylinder gas temperature at each time point in a compression process of a reciprocating internal combustion engine.SOLUTION: A temperature Tinit of newly suctioned gas is calculated based on a linear combination equation consisting of an intake gas temperature Tbin in an intake manifold, a cooling water temperature Twater, a specific power kPW, and constant terms: Tinit=C1×Tbin+C2×Twater+C3×kPW+C4, C1, C2, C3, C4: constants. A gas temperature Tivc in the cylinder when an intake valve closes is calculated based on the new gas temperature Tinit, and the residual gas temperature Tegrin from the previous cycle. A gas temperature Tca in the cylinder at each time point during a compression process is calculated based on the gas temperature Tivc in the cylinder when the intake valve closes, and a crank angle ca.SELECTED DRAWING: Figure 2

A computing device includes a plurality of rear inlet disconnects extend from the rear side of the housing. The rear inlet disconnects are operable to be fluidly coupled with a rack manifold and receive fluid from the rack manifold. The rear inlet disconnects include a rear-to-front disconnect and a rear-to-cooling disconnect. A front inlet manifold is coupled with the housing and includes at least one front inlet disconnect operable to be fluidly coupled with one or more inlet cooling disconnects extending from the front side of the housing. The inlet cooling disconnects are operable to be fluidly connected with the liquid cooling system. An inlet transmission tube is coupled with an outside surface of the housing. The inlet transmission tube in fluid communication with the rear-to-front disconnect and operable to direct the fluid from the rear-to-front disconnect to the front inlet manifold.

Described is a mixer for a chromatography system. The mixer includes an inlet manifold channel, an outlet manifold channel and a plurality of transfer channels. The inlet manifold channel has an inlet at a proximal end of the inlet manifold channel for receiving an inlet flow. The transfer channels are fluidly connected between the inlet and outlet manifold channels. The respective fluid connections are distributed along each of the inlet and outlet manifolds channels. The transfer channels have different volumes. The mixer may be formed of a plurality of layer and the layers may be diffusion bonded to each other.

The invention provides an engine control method and device, a computer readable storage medium and a vehicle. The method comprises the steps that under the condition that an engine is in an idling working condition, the opening degree of an exhaust gas recirculation valve of the engine and the opening degree of a throttle valve of the engine are adjusted to the corresponding preset opening degrees correspondingly; the idling working condition is the working condition of non-load operation of the engine; after the opening degree of the exhaust gas recirculation valve and the opening degree of the throttle valve are adjusted to the corresponding preset opening degrees correspondingly, the pressure of an intake manifold of the engine is obtained; under the condition that the pressure of the intake manifold is smaller than or equal to the pressure threshold value, the opening degree of the exhaust gas recirculation valve and the opening degree of the throttle valve are increased, so that the pressure of the intake manifold is larger than the pressure threshold value, and the problem that in the prior art, the engine oil consumption generated by pumping engine oil is high due to the fact that the pressure of the intake manifold is low under the engine idling working condition is solved.

A fuel cell system capable of efficiently drain water and reducing the amount of water in exhaust gas, the fuel cell system includes a case and a fuel cell stack; the case houses the fuel cell stack; wherein the fuel cell stack is a stack of unit cells; wherein the unit cells are stacked at an angle of from 10° to 80° with respect to the horizontal direction; the fuel cell stack comprises a reaction air inlet manifold, a reaction air outlet manifold, a hydrogen inlet manifold and a hydrogen outlet manifold; the hydrogen inlet manifold is disposed above the hydrogen outlet manifold in the gravitational force direction; and wherein the reaction air inlet manifold is disposed above the reaction air outlet manifold in the gravitational force direction.

The invention discloses an engine surge control method and device, electronic equipment and a storage medium. The engine surge control method comprises the steps that the current working state of the supercharger is an enabling state, the average value of absolute values of supercharger outlet pressure band-pass filtering results is compared with a surge threshold value, and whether surge happens to the supercharger or not is judged; the driving delay time of the current anti-surge valve is recognized, predicted values of the key characteristic quantity after the driving delay time of the current anti-surge valve are predicted according to the current engine working condition parameters, and the predicted values comprise a supercharger pressure ratio predicted value and an air inlet flow predicted value; and the working state of the current anti-surge valve is an enabling state, and whether the current anti-surge valve is opened or not is comprehensively judged according to the pressure ratio predicted value of the supercharger, the difference value between the rear pressure of the supercharger and the pressure of the intake manifold and the opening degree of an accelerator pedal. The anti-surge valve is controlled to be opened and closed at a proper time, so that surge of the supercharger is avoided.

The invention discloses an engine intake manifold flow test bench and a test method, and belongs to the technical field of engine test equipment. The frequency converter is electrically connected with the fan, the fan is communicated with the pressure stabilizing box, the pressure stabilizing box is provided with a butterfly valve, the pressure stabilizing box is communicated with the pressure stabilizing barrel through an air inlet channel, the air inlet channel is provided with an air inlet flow meter and an air inlet flow differential pressure sensor, the pressure stabilizing barrel is communicated with the momentum meter, and the momentum meter penetrates through the test bed table to be communicated with the simulation cylinder sleeve. The test bed table is connected with the simulation cylinder sleeve and provided with a valve lift adjusting mechanism, the valve lift adjusting mechanism is provided with a push rod, and the push rod is provided with a displacement sensor and driven by a stepping motor. Through technical innovation and system integration, a full-process solution from test design, data acquisition to performance evaluation is constructed, powerful technical support is provided for research and development, optimization and quality control of the engine intake manifold, and the method has profound significance in promoting technical progress and product upgrading of the engine industry.

Heat exchangers include a housing with an internal structure that defines sets of first and second fluid passages such that a first fluid within the first fluid passages is prevented from mixing with a second fluid in the second fluid passages. An inlet manifold defines an inlet plenum for receiving the first fluid and directing the first fluid into openings of the first fluid passages. The openings are defined in an inlet end face of the internal structure within the inlet manifold. A set of flow directors are arranged on the inlet end face and are configured to direct a flow of the first fluid into the openings of the set of first fluid passages, with each flow director defining an end face passage that is one of the second fluid passages of the set of second fluid passages.

A heat exchanger for providing thermal energy transfer between first and second flows along first and second flowpaths has a plate bank having a plurality of plates. Each plate has: opposite first and second faces and leading and trailing edges along the second flowpath; a proximal edge having along the first flowpath: at least one inlet port; at least one outlet port; and at least one passageway. An inlet manifold has at least one inlet port and at least one outlet port. An outlet manifold has at least one outlet port and at least one inlet port. The first flowpath passes from the at least one inlet port of the inlet manifold, through the at least one passageway of each of the plurality of plates, and through the at least one outlet port of the outlet manifold. A shroud links distal portions of the plates.

The invention discloses a lightweight supercharged hydrogen internal combustion engine, which belongs to the field of hydrogen engines and comprises an engine body, a turbocharger, a brake gas storage component, an engine ECU (electronic control unit) and a tail gas treatment device. The turbocharger is adopted to replace an air compressor, waste gas exhausted by the engine drives the turbine to rotate, the gas compressor is driven to suck air and compress the air, and the air is used by the engine and a braking system. The outlet of the turbocharger is provided with the intercooler, the outlet end of the intercooler is communicated with the intake manifold of the engine, and cooled high-pressure air is fed into the engine, so that the operation efficiency is improved. The pressure storage pipeline is arranged between the intercooler and the air inlet manifold and communicated with the air storage tank, under the condition that normal work of the engine is met, redundant high-pressure air is stored in the air storage tank through the pressure storage pipeline to be used by an automobile braking system, and the combustion efficiency of the engine is improved through integrated hydrogen injection. The dynamic property and stability of the engine can be improved.

A novel supercharged engine general arrangement structure relates to the technical field of engine research and development. A valve chamber cover and oil filler cap assembly and a rear cam bearing cap assembly are arranged above the engine body; a synchronous chain housing assembly, a generator, a crankshaft pulley assembly and an air conditioner compressor are arranged at the front end; an intake manifold assembly, an electronic throttle body, a thermostat and housing assembly, a fuel gas injection rail assembly and an oil rail assembly are arranged on the intake side; a turbocharger assembly, a three-way catalyst assembly, a water pump and adapter assembly and a water inlet pipe and O-shaped ring assembly are arranged on the exhaust side; a small circulation water return steel pipe assembly, an oil cooler connecting pipe assembly, a flywheel shell assembly and a flywheel disc and gear ring assembly are arranged at the rear end of the flywheel shell assembly; and an oil pan and an oil filter are arranged below. According to the structure that the supercharged engine with the fuel gas and fuel oil dual-fuel supply with the displacement of 2.0 L is overall arranged at the inclination angle of 0-10 degrees, the whole engine is compact in arrangement and integrated in design, and the energy-saving and environment-friendly requirements are met.

The invention provides an intake manifold split charging tool, and relates to the technical field of engine manufacturing, the intake manifold split charging tool comprises two groups of mounting seats, the side walls of the mounting seats are rotatably connected with rotary discs, and a mounting plate is connected between the rotary discs; the device further comprises a hydraulic clamping mechanism, the hydraulic clamping mechanism comprises multiple sets of fixing cylinders, the multiple sets of fixing cylinders are fixedly connected with the side wall of the mounting plate, the multiple sets of fixing cylinders are connected through multiple sets of communicating pipes, fixing rings are arranged in the fixing cylinders, multiple sets of sliding holes are formed in the surfaces of the fixing rings, and the sliding holes are communicated with the communicating pipes. According to the split charging tool for the intake manifold, through the multi-dimensional clamping system, all-dimensional stable constraint on the intake manifold is achieved, and the problem that the clamping stability of a traditional tool is insufficient is solved.

The invention discloses a gas engine cold start difficulty diagnosis method, system and device and a readable storage medium, and relates to the field of cold start fault detection, and the method specifically comprises the steps: determining an initial idle speed segment based on a real-time vehicle speed, a real-time engine rotation speed, a neutral gear signal and a clutch signal when the lowest environment temperature is detected to be smaller than a preset environment temperature threshold value; the initial idling segment is a working state when the vehicle is static and an engine is in an idling mode; in the initial idle speed segment, based on the maximum value of the engine rotating speed, the real-time engine rotating speed, the real-time gas rail pressure, the real-time gas rail temperature, the engine water temperature at the starting point of the initial idle speed segment, the real-time accelerator opening degree and the fault code, the cold start difficulty result of the gas engine is determined; the fault code is a corresponding fault code when the pressure of the intake manifold is smaller than a preset pressure threshold value of the intake manifold. According to the invention, specific faults of cold start difficulty can be identified efficiently and accurately.

An example system includes a fluid end having a block, a fluid inlet formed in the block, and a fluid outlet formed in the block. The system also includes an intake manifold fluidly coupled to the fluid inlet, and a fluid conduit fluidly coupled to the fluid outlet and the intake manifold. The system further includes a valve fluidly coupled to the fluid conduit, the valve configured to control fluid flow through the fluid conduit, an actuator coupled to the valve and configured to position the valve in an open position or a closed position, and a controller communicatively coupled to the actuator and configured to send one or more signals to the actuator, causing the actuator to position the valve in the open position or the closed position.

The invention discloses a hot EGR flow calculation method and device, an engine and a vehicle. The calculation method comprises the steps that a flow conservation equation of the hot EGR flow is established according to flow conservation; the operation condition of the engine is obtained, and the EGR flow direction is determined according to the operation condition; a corresponding flow conservation equation is solved according to the EGR flow direction, and the initial hot EGR flow is determined; the pressure ratio of the engine is obtained, the initial hot EGR flow is corrected according to the pressure ratio, and the hot EGR flow is obtained; the pressure ratio is a ratio of exhaust manifold pressure to intake manifold pressure or a ratio of exhaust manifold pressure to turbine outlet pressure. According to the technical scheme, the initial hot EGR flow is determined by establishing the mass conservation equation during EGR forward flow and reverse flow and combining the EGR flow direction, the initial hot EGR flow is corrected through the pressure ratio of the engine, the hot EGR flow is obtained, model calculation is used for replacing a hot EGR flow sensor, and the application range of hot EGR is widened.

The invention discloses a double-air-passage double-injection methanol engine air inlet system, belongs to the technical field of engines, and solves the problem of poor air inlet mixing effect of an existing methanol engine. The air inlet structure comprises an air inlet main pipe, the air inlet main pipe is communicated with each combustion chamber of an engine through an air inlet structure, the air inlet structure comprises a first air inlet channel and a second air inlet channel which are independently arranged, and the first air inlet channel and the second air inlet channel are both formed in an air cylinder cover. One end of the first air inlet channel and one end of the second air inlet channel are both communicated with a combustion chamber of the engine, the other end of the first air inlet channel and the other end of the second air inlet channel are correspondingly connected with an air inlet manifold, each air inlet manifold is provided with a methanol injection valve, and the injection direction of each methanol injection valve faces one side of the first air inlet channel and one side of the second air inlet channel. And the other end of each intake manifold is communicated with an intake manifold. According to the air inlet system, the mixing effect of methanol and air can be improved, then the combustion efficiency is improved, and the cost is reduced.

A fluid end for use with a power end. The fluid end comprises a plurality of fluid end sections positioned adjacent one another. Each section includes a single horizontally positioned bore. A plunger is installed within the bore and includes a fluid passageway. Low-pressure fluid enters the bore through the plunger and high-pressure fluid exits the fluid end through an outlet valve installed within the bore. The intake of low-pressure fluid within the fluid end section is regulated by an inlet valve installed within the plunger. Low-pressure fluid enters the plunger through an inlet component attached to both the plunger and an inlet manifold.

The invention discloses a surge control system and a control method thereof. The surge control system comprises a surge valve, a three-way valve and a control unit, the first end of the surge valve is communicated with a first pipeline between the throttle valve and the intercooler; the second end of the surge valve is communicated with a second pipeline between the throttle valve and the intake manifold; the third end of the surge valve is communicated with a third pipeline between the air inlet channel and the supercharger; the three-way valve is arranged between the second end of the surge valve and the second pipeline; the inlet end of the three-way valve is communicated with the second end of the surge valve; a first outlet end of the three-way valve is communicated with the second pipeline; a second outlet end of the three-way valve is communicated with the third pipeline; the control unit is in communication connection with the three-way valve. According to the technical scheme, the noise problem caused by critical opening of the surge valve is solved, the surge risk of a whole machine pipeline is reduced, and meanwhile the driving and riding comfort is improved.

An engine backfire problem-based alarming method, apparatus, and device, and a computer-readable storage medium. The method comprises: on the basis of collected information on the current vehicle speed and information on the temperature change of an air inlet pipe, determining whether a backfire problem occurs in an engine of a vehicle; if it is determined that the backfire problem occurs in the engine, calculating a total pressure impact on the air inlet pipe generated by the occurrence of the backfire problem in the engine; and sending alarm information on the basis of the total pressure impact on the air inlet pipe generated by the occurrence of the backfire problem in the engine. The method solves the existing technical problem in the related art that, when an engine backfire problem occurs, natural gas burns in an air inlet pipe, causing the air inlet pipe to crack, thereby rendering a vehicle unable to travel. The method enables an accurate determination of the change in strength of an air inlet manifold on the basis of a pressure impact generated by a backfire problem, thereby identifying in advance whether the air inlet manifold is cracked, providing an advance alarm to prompt replacement of the air inlet manifold, and avoiding the inability of the vehicle to travel due to cracking of the air inlet manifold.

The utility model provides a power take-off device independent of a blast pump and a vacuum pump, which comprises a power transmission mechanism and an engine intake manifold, the engine intake manifold is connected with one end of a first vacuum air pipe, the other end of the first vacuum air pipe is connected with one side of a vacuum tank, and the other side of the vacuum tank is connected with a vacuum pump. The other side of the vacuum tank is connected with one end of a second vacuum air pipe, the other end of the second vacuum air pipe is connected with a vacuum cylinder, and the vacuum cylinder is connected with a power transmission mechanism. According to the power take-off implementation device independent of the inflating pump and the vacuum pump, the blank of a power take-off scheme of a vehicle type without a vacuum pump and an inflating pump on the market is filled, and the possibility is provided for achieving multiple functions of the vehicle type; the power takeoff device is simple in structural arrangement, compared with an air pump and a vacuum pump, electric appliances of the whole vehicle are reduced, the power takeoff device is simpler and more convenient, and a new power takeoff technical route is provided for an oil brake type.

The present disclosure relates to an air intake module (100) which includes a first sensor (10) for continuously monitoring air temperature and pressure at the intake manifold and generating a first sensed signal. The module comprises a float chamber (22) supplying fuel to a housing (12), which includes a first channel (13) with an air inlet (14) and an outlet (15) delivering an air-fuel mixture to the engine. A second channel (105) and a third channel (107) within the housing facilitate air passage. A throttle slide (51), positioned within the first channel, regulates airflow. A second sensor (108) detects the throttle slide (51) position and generates a second sensed signal. A control unit (134) processes sensed signals and generates an actuating signal. An IACV (146) with a plunger (111) adjusts airflow between the second channel and the third channel in response to the actuating signal, enabling air bypass during idle or low-load conditions.

The utility model discloses a heatable intake manifold suitable for a methanol engine, which comprises an intake manifold main body and an intake manifold heating branch, interlayers are arranged in double walls of the intake manifold main body, the intake manifold heating branch comprises a temperature control throttle valve, an intake manifold interlayer and a reversing valve, the intake manifold interlayer is provided with a water inlet, and the reversing valve is provided with a water outlet. Fin plates are embedded in the air inlet manifold interlayer, electric heating wires are embedded in the air inlet manifold interlayer, a water inlet of the air inlet manifold interlayer is connected to a temperature control throttling valve through a water channel, an output port of the temperature control throttling valve is connected to a water outlet main pipe, and a water circulation pipeline passes through a wax type thermostat from the water outlet main pipe. The thermostat first water circulation of the wax type thermostat is that the wax type thermostat is connected with a reversing valve and then is connected to an engine cylinder sleeve, and the thermostat second water circulation connected with the output end of the wax type thermostat is that the wax type thermostat is connected to a water tank and is connected to the engine cylinder sleeve through the water tank. According to the utility model, the direct heating of the intake manifold is efficiently realized, and the heating efficiency of the intake mixed atmosphere is improved.