CN209413995U - Diesel engine closes the cylinder circulatory system - Google Patents
Diesel engine closes the cylinder circulatory system Download PDFInfo
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- CN209413995U CN209413995U CN201822267293.6U CN201822267293U CN209413995U CN 209413995 U CN209413995 U CN 209413995U CN 201822267293 U CN201822267293 U CN 201822267293U CN 209413995 U CN209413995 U CN 209413995U
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Abstract
The utility model discloses a kind of diesel engines to close the cylinder circulatory system, includes diesel engine control module, the distribution module being connect with the diesel engine control module by sensor signal and fuel oil supply unit；Replace the opening and closing of mechanical cam shaft system and its transmission mechanism control jet and puff prot by ECM electronic control, to stop the acting of this cylinder, to make other several cylinder operations in the state of higher load rate, so that the emission performance of the fuel consumption rate of host is improved, achievees the purpose that the emission performance of raising and then consumption rate, realizes the utilization rate for the timing of cylinder being precisely controlled and being improved host.
Description
Technical field
The utility model relates to diesel engine production application fields, and in particular to diesel engine closes the cylinder circulatory system.
Background technique
Show that fuel utilization ratio is low when main unit load rate is lower according to the characteristic of diesel engine；When main unit load rate is higher
When (about 80% to 90%), fuel utilization ratio is higher, and emission performance improves.We select engine of boat and ship when
It waits, generally requires the high host of selection power, just can guarantee the rapidity of ship, and in the case where most of routine use,
In order to consider economy, the efficiency of propeller can be effectively improved using long stroke and reduction revolution speed of propeller, marine main engine
Rate of load condensate is often not achieved so high.How to meet host using needs from the Eco-power what state of limited consideration is urgently
It solves the problems, such as.
Utility model content
In order to solve the above technical problems, the utility model proposes diesel engines to close the cylinder circulatory system, improved then with reaching
The emission performance of consumption rate realizes the purpose for the timing of cylinder being precisely controlled and being improved the utilization rate of host.
In order to achieve the above objectives, the technical solution of the utility model is as follows:
A kind of diesel engine closes the cylinder circulatory system, includes diesel engine control module, controls with the diesel engine
The distribution module and fuel oil supply unit that module is connected by sensor signal；
The diesel engine control module is used to receive and handle the data of sensor transmissions, and is stored, calculated
It is handled with analysis, and output is executed instruction into each execution unit by feedback according to result；
The distribution module includes the air inlet and exhaust valve and safety air vavle being arranged in gas circuit, and the air inlet and exhaust valve is according to biography
The signal of sensor detection and the instruction of diesel engine control module output execute；
The fuel oil supply unit includes solenoid valve and active relief valve on oil circuit, the solenoid valve and active relief valve
Open state is by diesel engine control module according to the instruction execution issued after the analysis of the data of sensor transmissions.
Preferably, the diesel engine control module is connected with following sensing by signal input and output circuit
Device: crankshaft position sensor, pressure sensor, cylinder temperature sensor, engine speed sensor and lambda sensor,
The crankshaft position sensor is used to determine the position of crankshaft, to determine the basic ignition moment；
Pressure sensor in intake and exhaust manifold is used to detect the variation of manifold pressure caused by displacement variation, is also used to
Whether detection pumping loss shares, and the pressure sensor on oil circuit is used to monitor the variation of oily rail pressure power, and then controls
The switch state of active safety valve；Pressure sensor on cylinder is in order to avoid generation pumping loss；
The cylinder temperature sensor is used to detect the variation of temperature cylinder；
The engine speed sensor is used to detect the revolving speed of engine；
The lambda sensor is used to detect the content of oxygen in engine.
Preferably, signal input and output circuit be also connected with amplifying circuit with guarantee system accuracy and can
By property.
The utility model has the advantages that
Diesel engine provided by the utility model closes the cylinder circulatory system and replaces mechanical cam shafting by ECM electronic control
The opening and closing of system and its transmission mechanism control jet and puff prot, to stop the acting of this cylinder, to make other several gas
Cylinder working makes the emission performance of the fuel consumption rate of host improve in the state of higher load rate, reaches raising and then consumes
The emission performance of rate realizes the purpose for the timing of cylinder being precisely controlled and being improved the utilization rate of host.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.
Fig. 1 is the system block diagram that diesel engine disclosed in the utility model embodiment closes the cylinder circulatory system；
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
The utility model provides diesel engine and closes the cylinder circulatory system, its working principle is that being replaced by ECM electronic control
The opening and closing of mechanical cam shaft system and its transmission mechanism control jet and puff prot, to stop the acting of this cylinder, from
And make other several cylinder operations in the state of higher load rate, so that the emission performance of the fuel consumption rate of host is improved, reaches
The timing of cylinder is precisely controlled and is improved to the emission performance of raising and then consumption rate, realization the purpose of the utilization rate of host.
The utility model is described in further detail below with reference to embodiment and specific embodiment.
As shown in Figure 1, a kind of diesel engine closes the cylinder circulatory system, it include (the automatically controlled mould of ECM of diesel engine control module 1
Block), the distribution module 3 that is connect with the diesel engine control module by sensor signal and fuel oil supply unit 4, the CEM
Electronic control module is connect by signal input and output circuit with sensor, and amplification electricity is also connected on signal input and output circuit
Road；
The diesel engine control module is used to receive and handle the data of sensor transmissions, and is stored, calculated
It is handled with analysis, and output is executed instruction into each execution unit by feedback according to result；
The distribution module includes the air inlet and exhaust valve 31 and safety air vavle 32 being arranged in gas circuit, the air inlet and exhaust valve root
It is executed according to the instruction that the signal and diesel engine control module of sensor detection export；
The fuel oil supply unit includes solenoid valve 41 and active relief valve 42 on oil circuit, the solenoid valve and active pressure release
The open state of valve is by diesel engine control module according to the instruction execution issued after the analysis of the data of sensor transmissions.
Signal input and output circuit includes input circuit and output loop, and input circuit is used for the simulation of sensor detection
Signal is transmitted to ECM electronic control module, and output loop is transmitted to executive component for executing instruction for ECM electronic control module sending.
Wherein sensor includes: crankshaft position sensor 21, pressure sensor 22, cylinder temperature sensor 23, host turn
Fast sensor 24 and lambda sensor 25,
The crankshaft position sensor is used to determine the position of crankshaft, to determine the basic ignition moment；
Pressure sensor in intake and exhaust manifold is used to detect the variation of manifold pressure caused by displacement variation, is also used to
Whether detection pumping loss shares, and the pressure sensor on oil circuit is used to monitor the variation of oily rail pressure power, and then controls
The switch state of active safety valve；Pressure sensor on cylinder is in order to avoid generation pumping loss；
The cylinder temperature sensor is used to detect the variation of temperature cylinder；
The engine speed sensor is used to detect the revolving speed of engine；
The lambda sensor is used to detect the content of oxygen in engine.
Steps are as follows for the utility model specifically used: again as shown in Figure 1, ECM control is most importantly to valve actuating mechanism:
Including air inlet and exhaust valve, safety air vavle.Common rail system: the control including solenoid valve and active relief valve, also to control including
Auxiliary system including coolant system guarantees host smooth working.In entire engine operational cycle, this part is controlled
The definition of working condition include stopping, starting is closed cylinder state (special 4 cylinder of array), normal operating conditions (6 cylinders whole
Acting) these states, for stopping and starting the two states, we are repeated no more, and main introduce closes cylinder and normal work here
Make the control strategy and thought of state:
When a host work circulation starts, first judges that host is in and close cylinder working state or normal 6 cylinder working shape
State:
1. if ECM passes through analysis engine speed sensor and cylinder temperature sensor be in 6 cylinder normal operating conditions
Whether information analysis main unit load rate and fuel burning rate are lower than the threshold values of economic work, in subsequent cycle if reaching condition
Start to close the cylinder firing order that cylinder recycles, continuing to work normally if not up to terminates this circulation.
2. if in cylinder working state, the letter that ECM passes through analysis engine speed sensor and cylinder temperature sensor is closed
Breath analysis main unit load rate and fuel burning rate judge whether to reach the threshold values for being still required to continue to close cylinder, reach, continue to close cylinder
Work step, in subsequent cycle using 6 cylinders while the firing order of acting if being unsatisfactory for.
It is as follows specifically to close cylinder working scheme:
Signal is fed back to main control unit ECM by load on host computers sensor, ECM compare host work rule map in ROM and
Time calculates the time point for being suitble to close cylinder, and analog signal is transmitted in valve actuating mechanism and oil supply mechanism truncation fuel injector pipeline
Solenoid valve opens the active relief valve in fuel injector pipeline safety valve, controls air valve and spray bar is closed, realization is died disconnected
Oil starts to close cylinder circulation at this time, and a working cycles of the host after closing cylinder are divided into three steps:
Step 1: No. four two cylinders of No.1 stop working, 2356 cylinders work according to the firing order of 2-5-6-3.
Step 2: No. two No. five two cylinders stop working, the sequential working that one three four six cylinders are under fire according to 1-4-6-3.
Step 3: No. three No. six two cylinders stop working, the firing order of remaining cylinders is 1-4-5-2.
In whole process, in trigger wheel plus a very thin compensation wheel of circle, allow it all the time by the induction zone of Hall element,
To Hall element one permanent but very little voltage, using this voltage as Fixed Initial Point, to eliminate the zero shift bring of circuit
It influences.
In whole process, the working principle of electronic control cylinder air valve is as follows: the working condition of cylinder is passed according to crank position
Sensor and cylinder pressure sensors judge.The order of the opening and closing of cylinder valve is according to crank angle and cylinder gas
Valve can be changed the opening time through electronic control module calculating determination, when receiving the order of unlatching, control of the servo oil valve in solenoid valve
The lower starting of system, servo oil are opened from the execution oil cylinder pushing cylinder valve that servo-cylinder enters hydraulic system；It is closed when receiving
When order, servo oil valve reverse-conducting, hydraulic oil is released from oil cylinder is executed to servo-cylinder, and cylinder valve is closed, to realize
Cylinder valve it is automatically controlled.
In whole process, pressure of the oil supply system by primary oil rail (case), between second level high pressure oil rail and two-stage oil rail
Pump, the fuel dispenser (pump) that second level oil rail is connected in fuel injector, fuel injector pipeline active relief valve (solenoid valve), fuel injector pipe
The passive relief valve in road (overflow valve) and fuel injector composition.Its course of work is as follows: pressure pump first is by the combustion in primary oil rail
Oil imports in second level oil rail, and high pressure fuel is transported to fuel injector pipeline (fuel injector again by the fuel dispenser in second level oil rail
Pipeline determines according to cylinder number, independent mutually) in, host work state that the main control unit ECM of host gives according to sensor
Solenoid valve of the information (analog signal) into fuel injector pipeline sends signal, it is made to be opened or be closed according to oil spout opportunity
It closes, the high pressure fuel in fuel injector overcomes the initial tension of spring of fuel injector mouth to open oil spout, receives the finger of after end of injection
Solenoid valve is enabled to close, the high pressure fuel oil in fuel injector pipeline is back to primary oil rail by safety valve, remaining fuel injector is pressed
Firing order successively works, and completes a duty cycle.Realize the automatically controlled of host oil supply system.
By above mode, diesel engine provided by the utility model closes the cylinder circulatory system, by ECM electronic control come
Replace the opening and closing of mechanical cam shaft system and its transmission mechanism control jet and puff prot, to stop doing for this cylinder
Function becomes the emission performance of the fuel consumption rate of host to make other several cylinder operations in the state of higher load rate
It is good, reach the emission performance of raising and then consumption rate, realize the utilization rate for the timing of cylinder being precisely controlled and being improved host
Purpose.
The preferred embodiment that above-described is only disclosed in the utility model ..., it is noted that for ability
For the those of ordinary skill in domain, without departing from the concept of the present invention, can also make it is several deformation and
It improves, these are all within the protection scope of the present invention.
Claims (3)
1. a kind of diesel engine closes the cylinder circulatory system, which is characterized in that include that diesel engine control module and the diesel oil are sent out
The distribution module and fuel oil supply unit that motivation control module is connected by sensor signal；
The diesel engine control module is used to receive and handle the data of sensor transmissions, and is stored, calculated and divided
Analysis processing, and output is executed instruction into each execution unit by feedback according to result；
The distribution module includes the air inlet and exhaust valve and safety air vavle being arranged in gas circuit, and the air inlet and exhaust valve is according to sensor
The instruction of signal and diesel engine the control module output of detection executes；
The fuel oil supply unit includes solenoid valve and active relief valve on oil circuit, the unlatching of the solenoid valve and active relief valve
State is by diesel engine control module according to the instruction execution issued after the analysis of the data of sensor transmissions.
2. diesel engine according to claim 1 closes the cylinder circulatory system, which is characterized in that the diesel engine control module
It is connected with by signal input and output circuit such as lower sensor: crankshaft position sensor, pressure sensor, temperature cylinder sensing
Device, engine speed sensor and lambda sensor,
The crankshaft position sensor is used to determine the position of crankshaft, to determine the basic ignition moment；
Pressure sensor in intake and exhaust manifold is used to detect the variation of manifold pressure caused by displacement variation, is also used to examine
Survey whether pumping loss shares, the pressure sensor on oil circuit is used to monitor the variation of oily rail pressure power, and then controls master
The switch state of dynamic safety valve；Pressure sensor on cylinder is in order to avoid generation pumping loss；
The cylinder temperature sensor is used to detect the variation of temperature cylinder；
The engine speed sensor is used to detect the revolving speed of engine；
The lambda sensor is used to detect the content of oxygen in engine.
3. diesel engine according to claim 2 closes the cylinder circulatory system, which is characterized in that signal input and output circuit is also
Amplifying circuit is connected with to guarantee the accuracy and reliability of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822267293.6U CN209413995U (en) | 2018-12-30 | 2018-12-30 | Diesel engine closes the cylinder circulatory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822267293.6U CN209413995U (en) | 2018-12-30 | 2018-12-30 | Diesel engine closes the cylinder circulatory system |
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| Publication Number | Publication Date |
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| CN209413995U true CN209413995U (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822267293.6U Active CN209413995U (en) | 2018-12-30 | 2018-12-30 | Diesel engine closes the cylinder circulatory system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441647A (en) * | 2018-12-30 | 2019-03-08 | 中国人民解放军陆军军事交通学院镇江校区 | Diesel engine closes the cylinder circulatory system |
| CN112033687A (en) * | 2020-09-07 | 2020-12-04 | 潍柴动力股份有限公司 | Cylinder-failure testing method and device, controller and engine |
-
2018
- 2018-12-30 CN CN201822267293.6U patent/CN209413995U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441647A (en) * | 2018-12-30 | 2019-03-08 | 中国人民解放军陆军军事交通学院镇江校区 | Diesel engine closes the cylinder circulatory system |
| CN112033687A (en) * | 2020-09-07 | 2020-12-04 | 潍柴动力股份有限公司 | Cylinder-failure testing method and device, controller and engine |
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