CN107401459B - Method for circularly stopping cylinders of V-shaped arranged diesel engine - Google Patents
Method for circularly stopping cylinders of V-shaped arranged diesel engine Download PDFInfo
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- CN107401459B CN107401459B CN201710772756.1A CN201710772756A CN107401459B CN 107401459 B CN107401459 B CN 107401459B CN 201710772756 A CN201710772756 A CN 201710772756A CN 107401459 B CN107401459 B CN 107401459B
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Abstract
The invention relates to the technical field of diesel engines, in particular to a method for circularly stopping cylinders of a V-shaped arranged diesel engine, which is used for finishing the alternate firing of each cylinder within the range of m degrees of rotation of a crankshaft, wherein the number of the cylinders is n, n/2 cylinders fire in the first m/2-degree working cycle, and the other n/2 cylinders fire in turn in the second m/2-degree working cycle. According to the method for the circular cylinder deactivation of the V-shaped arrangement diesel engine, half of the cylinders stop working in the normal working cycle of the four-stroke diesel engine, so that the effects of improving combustion, reducing oil consumption and avoiding oil injection of a smoke exhaust pipe of a supercharger are achieved. When the diesel engine runs in idle running, a method of stopping part of cylinders to work is adopted to increase the single-cylinder fuel injection quantity of the working cylinder, so that the control precision and the atomization quality of single-cylinder fuel injection are improved, combustion is improved, fuel consumption is reduced, emission is reduced, and the problem of fuel injection of a smoke exhaust pipe is solved.
Description
Technical Field
The invention relates to the technical field of diesel engines, in particular to a method for circularly stopping cylinders of a V-shaped arrangement diesel engine.
Background
In the process of each 2-turn crankshaft rotation, all cylinders are ignited by turns. For a diesel engine using a monoblock pump fuel system, the ratio of the fuel quantity injected by each cylinder nozzle to the rated power in the working condition of the rated rotating speed in idle running is about 1:51000, the variation range of the fuel quantity in high and low working conditions is large, the control precision of the nozzles in the low fuel quantity injection is poor, and the fuel injection pressure is low and the atomization is poor in the low rotating speed running, so that the fuel in the cylinders can not be completely combusted after the diesel engine runs for a long time in idle running, the accumulated fuel is sprayed out from a booster smoke exhaust pipe, the environment is polluted, and the fuel is wasted. The problem that the fuel injection of the smoke exhaust pipe is frequently generated when the shunting locomotive is in the idle working condition and has long running time is solved.
In order to solve the problem of idle rotation oil injection, a single-row oil stopping method is adopted, namely for a diesel engine with 4-stroke V-shaped cylinder arrangement, when the engine runs in idle rotation, the oil supply of one row of cylinders is stopped, in order to maintain the rotating speed of the diesel engine, the single-cylinder oil injection quantity of the other exhaust cylinder is doubled, the control precision of the oil injection quantity of each nozzle is correspondingly improved, the atomization is improved, fuel oil can be fully combusted in the cylinder of the diesel engine, and the problem of oil injection of a smoke exhaust pipe is avoided. However, this solution has some drawbacks:
1, one row of cylinders of the diesel engine work, and the other row of cylinders do not work, so that the diesel engine is unbalanced in operation and aggravated in vibration.
And 2, the abrasion of the cylinder on the working side is larger than that of the cylinder on the non-working side.
Disclosure of Invention
In order to overcome the problem of inert fuel injection of the existing diesel engine, the invention provides a method for circularly stopping the cylinders of a V-shaped arrangement diesel engine, taking the example that each cylinder is ignited in turn once within the range of m degrees, the number of the cylinders is set to be n, n/2 cylinders are ignited in the first m/2 working cycle, and the other n/2 cylinders are ignited in turn in the second m/2 working cycle.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for circularly stopping cylinders of a V-shaped arranged diesel engine comprises a 12-cylinder V-shaped arranged four-stroke diesel engine and a 16-cylinder V-shaped arranged four-stroke diesel engine, wherein the 12-cylinder V-shaped arranged four-stroke diesel engine and the 16-cylinder V-shaped arranged four-stroke diesel engine are composed of a left cylinder 1 and a right cylinder 2, and an included angle between the left cylinder 1 and the right cylinder 2 is 50 degrees.
The method comprises the following steps: the method is characterized in that when a 12-cylinder V-shaped arranged four-stroke diesel engine and a 16-cylinder V-shaped arranged four-stroke diesel engine are in working states, the cylinders are ignited once by turns within a 1440-degree rotation angle range or a 2160-degree rotation angle range.
Further, the method comprises the following steps that when the 12-cylinder V-shaped arranged four-stroke diesel engine is in an operating state, cylinders are ignited by turns within the 1440-degree rotation angle range: firstly, the No. 1 cylinder fires, the crankshaft rotates 70 degrees, the No. 8 cylinder fires, the crankshaft continues to rotate 170 degrees, the No. 3 cylinder fires, the crankshaft continues to rotate 70 degrees, the No. 7 cylinder fires, the crankshaft continues to rotate 170 degrees, the No. 2 cylinder fires, the crankshaft continues to rotate 70 degrees, the No. 9 cylinder fires, the crankshaft continues to rotate 120 degrees, the No. 12 cylinder fires, the crankshaft continues to rotate 170 degrees, the No. 5 cylinder fires, the crankshaft continues to rotate 70 degrees, the No. 10 cylinder fires, the crankshaft continues to rotate 170 degrees, the No. 6 cylinder fires, the crankshaft continues to rotate 70 degrees, the No. 11 cylinder fires, the crankshaft continues to rotate 170 degrees, the No. 4 cylinder fires, and the crankshaft continues to rotate 120 degrees, and the No. 1 cylinder fires.
Further, the method comprises the following steps that when the 16-cylinder V-shaped arranged four-stroke diesel engine is in an operating state, cylinders are ignited one time by turns within the 1440-degree rotation angle range: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 40 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 90 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, after the crankshaft continues to rotate 90 degrees, the No. 1 cylinder fires.
Further, the method comprises the following steps that when the 16-cylinder V-shaped arranged four-stroke diesel engine is in a working state, the cylinders are ignited one time by turns within the 2160-degree rotation angle range: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 130 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 14 cylinder is ignited, after the crankshaft continues to rotate for 140 degrees, the No. 1 cylinder fires.
Further, the method comprises the following steps that when the 16-cylinder V-shaped arranged four-stroke diesel engine is in an operating state, cylinders are ignited one time by turns within the 1440-degree rotation angle range: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 40 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 90 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, after the crankshaft continues to rotate 90 degrees, the No. 1 cylinder fires.
Further, the method comprises the following steps that when the 16-cylinder V-shaped arranged four-stroke diesel engine is in a working state, the cylinders are ignited one time by turns within the 2160-degree rotation angle range: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 130 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 11 cylinder is ignited, after the crankshaft continues to rotate for 140 degrees, the No. 1 cylinder fires.
The method for cyclically stopping the cylinders of the V-shaped arranged diesel engine has the advantages that when the diesel engine runs in an idle running mode, the method for cyclically stopping the cylinders by means of cylinder jumping ignition can reduce no-load oil consumption of the diesel engine, reduce pollutant emission, avoid oil injection of a smoke exhaust pipe, reduce carbon deposition on the top of a piston, and prolong the service life of a cylinder sleeve and a piston ring.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a cross-sectional view of a V-arrangement four-stroke diesel engine;
FIG. 2 is a schematic diagram showing a method for alternately igniting cylinders once within a 1440 degree rotation angle range of a crankshaft in a working state of a 12-cylinder V-type four-stroke diesel engine;
FIG. 3 is a schematic diagram showing a method for alternately igniting cylinders once within a 1440 degree rotation angle range of a crankshaft in a working state of a 16-cylinder V-type four-stroke diesel engine;
FIG. 4 is a schematic view showing a method of alternately igniting cylinders once in a 2160 DEG rotation angle range in a working state of a 16-cylinder V-bank four-stroke diesel engine;
FIG. 5 is a schematic view showing a method of alternately igniting cylinders once in a 1440 degree rotation angle range of a crankshaft in an operating state of a 16-cylinder V-type arrangement four-stroke diesel engine;
FIG. 6 is a schematic view showing a method of alternately igniting cylinders once in a 2160 degree rotation angle range of a crankshaft in an operating state of a 16-cylinder V-bank four-stroke diesel engine;
FIG. 7 is a schematic diagram showing a prior art method for alternately igniting cylinders once within a 1440 degree rotation angle range of a crankshaft when a 12-cylinder V-type arrangement four-stroke diesel engine is in operation;
FIG. 8 is a schematic view showing a prior art method of alternately igniting cylinders within a 1440 degree rotation angle range of a crankshaft when a 16-cylinder V-bank four-stroke diesel engine is in operation;
fig. 9 is a schematic view showing a method of alternately igniting cylinders once in a 2160 degree rotation angle range of a crankshaft in an operating state of a 16-cylinder V-bank four-stroke diesel engine in the prior art.
In the figure, 1 is a left cylinder, and 2 is a right cylinder.
Detailed Description
Referring to fig. 1, which is a sectional view of a V-bank four-stroke diesel engine, a method for cyclically deactivating cylinders of a V-bank diesel engine, the V-bank four-stroke diesel engine includes a 12-cylinder V-bank four-stroke diesel engine and a 16-cylinder V-bank four-stroke diesel engine, the 12-cylinder V-bank four-stroke diesel engine and the 16-cylinder V-bank four-stroke diesel engine are composed of a left cylinder 1 and a right cylinder 2, and an included angle between the left cylinder 1 and the right cylinder 2 is 50 °.
The method comprises the following steps: the method is characterized in that when a 12-cylinder V-shaped arranged four-stroke diesel engine and a 16-cylinder V-shaped arranged four-stroke diesel engine are in working states, the cylinders are ignited once by turns within a 1440-degree rotation angle range or a 2160-degree rotation angle range.
Referring to fig. 2 and 7, a conventional method for a normal firing sequence is shown in fig. 7, which is a four-stroke diesel engine with 12 cylinders arranged in a V-shape, and includes: firstly, the cylinder No. 1 is ignited, the crankshaft rotates 70 degrees, the cylinder No. 8 is ignited, the crankshaft continues to rotate 50 degrees, the cylinder No. 5 is ignited, the crankshaft continues to rotate 70 degrees, the cylinder No. 10 is ignited, the crankshaft continues to rotate 50 degrees, the cylinder No. 3 is ignited, the crankshaft continues to rotate 70 degrees, the cylinder No. 7 is ignited, the crankshaft continues to rotate 50 degrees, the cylinder No. 6 is ignited, the crankshaft continues to rotate 70 degrees, the cylinder No. 11 is ignited, the crankshaft continues to rotate 50 degrees, the cylinder No. 2 is ignited, the crankshaft continues to rotate 70 degrees, the cylinder No. 9 is ignited, the crankshaft continues to rotate 50 degrees, the cylinder No. 4 is ignited, the crankshaft continues to rotate 70 degrees, the cylinder No. 12 is ignited, and the cylinder No. 1 is ignited after the crankshaft continues to rotate 50 degrees.
The newly designed firing sequence method is shown in figure 2, compared with the normal firing sequence, the firing interval angle of each cylinder of the new firing sequence is increased, and all cylinders fire once in turn within the range of 1440 degrees of the crankshaft, and the method comprises the following steps: firstly, the No. 1 cylinder fires, the crankshaft rotates 70 degrees, the No. 8 cylinder fires, the crankshaft continues to rotate 170 degrees, the No. 3 cylinder fires, the crankshaft continues to rotate 70 degrees, the No. 7 cylinder fires, the crankshaft continues to rotate 170 degrees, the No. 2 cylinder fires, the crankshaft continues to rotate 70 degrees, the No. 9 cylinder fires, the crankshaft continues to rotate 120 degrees, the No. 12 cylinder fires, the crankshaft continues to rotate 170 degrees, the No. 5 cylinder fires, the crankshaft continues to rotate 70 degrees, the No. 10 cylinder fires, the crankshaft continues to rotate 170 degrees, the No. 6 cylinder fires, the crankshaft continues to rotate 70 degrees, the No. 11 cylinder fires, the crankshaft continues to rotate 170 degrees, the No. 4 cylinder fires, and the crankshaft continues to rotate 120 degrees, and the No. 1 cylinder fires.
Referring to fig. 8, 3 and 4, a conventional normal firing sequence method is shown in fig. 8, which is an example of a four-stroke diesel engine with 16 cylinders arranged in a V-shape, and includes: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 40 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 16 cylinder is ignited, after the crankshaft continues to rotate by 50 degrees, the No. 1 cylinder fires.
Based on the prior art firing order method of fig. 8, two skip cylinder firing orders were devised, as shown in fig. 3 and 4. The method for the cylinder jump firing sequence of fig. 3 realizes that all cylinders fire once in turn within the range of 1440 degrees of crankshaft rotation, and the method comprises the following steps: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 40 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 90 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, after the crankshaft continues to rotate 90 degrees, the No. 1 cylinder fires.
The method for the cylinder jump firing sequence shown in fig. 4 realizes that all cylinders fire once in turn within the range of 2160 degrees of crankshaft rotation, and the method comprises the following steps: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 130 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 14 cylinder is ignited, after the crankshaft continues to rotate for 140 degrees, the No. 1 cylinder fires.
Referring to fig. 9, 5 and 6, another conventional method for a normal firing sequence is shown in fig. 9, which is exemplified by a four-stroke diesel engine with 16 cylinders arranged in a V-shape, and includes: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 40 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 50 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 16 cylinder is ignited, after the crankshaft continues to rotate by 50 degrees, the No. 1 cylinder fires.
Based on the firing order method of fig. 9, two jump cylinder firing order methods are designed, as shown in fig. 5 and 6. The cylinder jump firing sequence method of fig. 5 realizes that all cylinders fire once in turn within the range of 1440 degrees of crankshaft rotation, and the method is as follows: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 40 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 90 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, after the crankshaft continues to rotate 90 degrees, the No. 1 cylinder fires.
The cylinder jump firing sequence shown in fig. 6 realizes that all cylinders fire once in turn within the range of 2160 degrees of crankshaft rotation, and the method comprises the following steps: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 130 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 11 cylinder is ignited, after the crankshaft continues to rotate for 140 degrees, the No. 1 cylinder fires.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (1)
1. A method for circularly stopping cylinders of V-shaped arranged diesel engines is characterized in that the V-shaped arranged four-stroke diesel engines comprise 12-cylinder V-shaped arranged four-stroke diesel engines and 16-cylinder V-shaped arranged four-stroke diesel engines, the 12-cylinder V-shaped arranged four-stroke diesel engines and the 16-cylinder V-shaped arranged four-stroke diesel engines are composed of a left cylinder 1 and a right cylinder 2, and an included angle between the left cylinder 1 and the right cylinder 2 is 50 degrees.
The method comprises the following steps: a method of alternately firing cylinders once in a 1440 degree rotation angle range or 2160 degree rotation angle range of a crankshaft when a 12-cylinder V-shaped arranged four-stroke diesel engine and a 16-cylinder V-shaped arranged four-stroke diesel engine are in a working state;
the method is suitable for changing the firing sequence under the idle working condition;
the method for alternately igniting the cylinders once in a 1440-degree rotation angle range by the crankshaft when the 12-cylinder V-shaped arranged four-stroke diesel engine is in a working state comprises the following steps: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 70 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 170 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 70 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 170 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 70 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 120 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 170 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 70 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 170 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 70 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 170 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 120 degrees, the No. 1 cylinder is ignited, or the cylinders of the 16-cylinder V-shaped four-stroke diesel engine are ignited once by turns in the 1440 degree rotation angle range when the engine is in the working state: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 40 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 90 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, after the crankshaft continues to rotate for 90 degrees, the No. 1 cylinder fires, or the cylinders fire once in turn within the 2160-degree rotation angle range when the 16-cylinder V-shaped arranged four-stroke diesel engine is in a working state: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 130 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 14 cylinder is ignited, after the crankshaft continues to rotate for 140 degrees, the No. 1 cylinder fires, or the cylinders fire once in turn within the 1440-degree rotation angle range when the 16-cylinder V-shaped arranged four-stroke diesel engine is in a working state: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 40 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 11 cylinder is ignited, the crankshaft continues to rotate 90 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 40 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, after the crankshaft continues to rotate for 90 degrees, the No. 1 cylinder fires, or the cylinders fire once in turn within the 2160-degree rotation angle range when the 16-cylinder V-shaped arranged four-stroke diesel engine is in a working state: firstly, the No. 1 cylinder is ignited, the crankshaft rotates 130 degrees, the No. 10 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 3 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 13 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 2 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 16 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 5 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 14 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 8 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 15 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 6 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 12 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 7 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 9 cylinder is ignited, the crankshaft continues to rotate 140 degrees, the No. 4 cylinder is ignited, the crankshaft continues to rotate 130 degrees, the No. 11 cylinder is ignited, after the crankshaft continues to rotate for 140 degrees, the No. 1 cylinder fires.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772756.1A CN107401459B (en) | 2017-08-31 | 2017-08-31 | Method for circularly stopping cylinders of V-shaped arranged diesel engine |
| RU2020109552A RU2765843C2 (en) | 2017-08-31 | 2017-12-04 | Method for cyclic shutdown of v-shaped diesel engine cylinders |
| PCT/CN2017/114380 WO2019041615A1 (en) | 2017-08-31 | 2017-12-04 | Method for cyclically disabling cylinders of v-type diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710772756.1A CN107401459B (en) | 2017-08-31 | 2017-08-31 | Method for circularly stopping cylinders of V-shaped arranged diesel engine |
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| CN107401459A CN107401459A (en) | 2017-11-28 |
| CN107401459B true CN107401459B (en) | 2020-04-07 |
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| CN201710772756.1A Active CN107401459B (en) | 2017-08-31 | 2017-08-31 | Method for circularly stopping cylinders of V-shaped arranged diesel engine |
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| Country | Link |
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| CN (1) | CN107401459B (en) |
| RU (1) | RU2765843C2 (en) |
| WO (1) | WO2019041615A1 (en) |
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| CN107401459B (en) * | 2017-08-31 | 2020-04-07 | 中车戚墅堰机车有限公司 | Method for circularly stopping cylinders of V-shaped arranged diesel engine |
| WO2021007103A1 (en) * | 2019-07-09 | 2021-01-14 | Cummins Inc. | Systems and methods for selectively activating engine cylinders to maintain minimum cylinder pressure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208504A (en) * | 2005-03-09 | 2008-06-25 | 罗伯特·博世有限公司 | Mehtod for operating an internal combustion engine consisting of several cylinder banks |
| US8651091B2 (en) * | 2009-07-10 | 2014-02-18 | Tula Technology, Inc. | Skip fire engine control |
| CN105526014A (en) * | 2014-10-20 | 2016-04-27 | 福特环球技术公司 | Method and system for selective cylinder deactivation |
| CN106164450A (en) * | 2014-04-02 | 2016-11-23 | 舍弗勒技术股份两合公司 | Internal combustion engine with alternating cylinder deactivation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6405705B1 (en) * | 2000-05-19 | 2002-06-18 | General Electric Company | Method and apparatus for reducing locomotive diesel engine smoke using skip firing |
| US7069140B2 (en) * | 2004-06-30 | 2006-06-27 | General Electric Company | Engine operation without cam sensor |
| US9163568B2 (en) * | 2009-10-20 | 2015-10-20 | GM Global Technology Operations LLC | Cold start systems and methods |
| RU2473818C2 (en) * | 2010-11-15 | 2013-01-27 | Александр Андреевич Грабовский | Method of ice output discrete variation |
| US9316165B2 (en) * | 2011-05-23 | 2016-04-19 | General Electric Company | Method for exhaust gas recirculation rate control |
| US8788182B2 (en) * | 2011-09-07 | 2014-07-22 | GM Global Technology Operations LLC | Engine speed based valvetrain control systems and methods |
| CN107401459B (en) * | 2017-08-31 | 2020-04-07 | 中车戚墅堰机车有限公司 | Method for circularly stopping cylinders of V-shaped arranged diesel engine |
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2017
- 2017-08-31 CN CN201710772756.1A patent/CN107401459B/en active Active
- 2017-12-04 RU RU2020109552A patent/RU2765843C2/en active
- 2017-12-04 WO PCT/CN2017/114380 patent/WO2019041615A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208504A (en) * | 2005-03-09 | 2008-06-25 | 罗伯特·博世有限公司 | Mehtod for operating an internal combustion engine consisting of several cylinder banks |
| US8651091B2 (en) * | 2009-07-10 | 2014-02-18 | Tula Technology, Inc. | Skip fire engine control |
| CN106164450A (en) * | 2014-04-02 | 2016-11-23 | 舍弗勒技术股份两合公司 | Internal combustion engine with alternating cylinder deactivation |
| CN105526014A (en) * | 2014-10-20 | 2016-04-27 | 福特环球技术公司 | Method and system for selective cylinder deactivation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107401459A (en) | 2017-11-28 |
| RU2020109552A (en) | 2021-10-04 |
| RU2020109552A3 (en) | 2021-10-04 |
| RU2765843C2 (en) | 2022-02-03 |
| WO2019041615A1 (en) | 2019-03-07 |
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