RU1813904C - Centrifugal rotation speed governor for diesel - Google Patents

Abstract

Usage: regulation of internal combustion engines. SUMMARY OF THE INVENTION: A centrifugal diesel speed controller comprises a housing 1, a shaft 2 with centrifugal weights 4, a clutch 5 kinematically connected with centrifugal weights 4. A clutch 5 is connected to the lever 7 of the regulator and the lever 8 of the fuel pump rail. A spring counter-corrector is installed between the levers 7 and 8, the Positive corrector 14 with the thrust plate 25 is pivotally connected to the lever 8. The guide sleeve 15 is mounted coaxially with the thrust plate 2. A spring-loaded sleeve 16 is movably mounted in the guide sleeve 15. Rod 19 s the collar 20 is movably mounted in the sleeve 16 and is spring-loaded relative to the latter. The control lever 18 restricts the movement of the sleeve 16. The centering sleeve 24 is fixed on the shoulder 20 coaxially to the positive corrector 14. The thrust plate 25 of the positive corrector 14 is placed in the inner bore of the centering sleeve. 1 ill.

Description

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201621 22 23

The invention relates to the regulation of internal combustion engines, and more particularly to centrifugal diesel engine speed controllers.

The purpose of the invention is to increase accuracy and expand the limits of regulation.

The drawing shows the regulator circuit.

All units and parts of the regulator are located in the housing 1. The regulator has a shaft 2 connected through a gear 3 with the crankshaft of the engine. Centrifugal weights 4 are pivotally mounted on the shaft 2, resting their paws on the coupling 5. The coupling 5 is articulated through the hinge 6 with the lever of the regulator 7 and the lever of the rail 8 of the fuel injection pump. The lever of the regulator 7 is pivotally mounted on an axis 9 fixed in the housing 1. An anticorrector 10 is installed between the levers 7 and 8. The upper arm of the lever 8 is connected through the pin 11 to the rail 12 of the fuel injection pump, and through the axis 13 it is pivotally connected to the positive corrector 14. A sleeve 15 is fixedly mounted in the housing 1 coaxially with the corrector 14, which serves as a guide for the sleeve 16. The sleeve 16 through the flange 17 interacts with the control lever 18 of the regulator. Inside the sleeve 16, coaxially to the positive corrector 14, a rod 19 with a collar 20, a pressure plate 21, springs 22 and 23 are placed. A centering sleeve 24 is fixed on the collar 20 of the rod 19, in the inner bore of which there is a stop plate 25 of the positive corrector 14. The rod 19 is provided emphasis 26, restricting the movement of the rod in the direction of centrifugal loads. Between the end of the sleeve 16 and the plate 28 fixed to the positive corrector 14, a spring 28 is located.

In the drawing, all parts of the controller are in a position corresponding to an idle engine.

The controller operates as follows.

To start the engine, the control lever 18 is rotated counterclockwise. In this case, the sleeve 16 and the rod 19 are displaced to the left, the rod 19 being pressed against the stop 26 with the end face of the sleeve 15, and the springs 23 and 28 are compressed. Under the action of the spring 28, the clutch 5, levers 7 and 8, the rack 12 are displaced to the left to the starting position . The spring preload 28 determines the rotational speed of the beginning of the extension of the rack 12 from the starting position. With increasing speed of the coupling 5, the levers 7 and 8 are shifted to the right until the thrust plate 25 of the positive corrector 14 touches the end of the shoulder

20 rod 19, reducing fuel supply. A further decrease in fuel supply and idle speed control at a low speed are accompanied by a shift of the rod 19 to the right and compression of the spring 23. When operating according to an external speed characteristic, the control lever 18 further rotates counterclockwise. Depending on whether or not a spring 22 is installed with a preload or not, the described controller can be dual-mode or all-mode, respectively, while the stop 26 on the rod 19 determines the value of the nominal fuel supply. In the case when the force developed by centrifugal weights 4 exceeds the spring preload нат of spring 22, this spring is compressed and the clutch 5, levers 7 and 8, rod 19 are moved to the right, while the fuel supply is reduced and the regulator operates according to the regulatory characteristic.

In all the typical operating modes of the centrifugal controller described above, in addition to pushing the rack from the start, the thrust plate 25 of the positive corrector 14, resting on the shoulder 29 of the rod 19, does not touch the stationary parts of the controller, for example, the sleeve 16, and does not worsen by This is an accurate control, since it is centered on the movable stem 19 by means of a sleeve 24.

In addition, the centering of the thrust plate 25 along the movable and spring-loaded stem 19 allows to improve the assembly conditions of the regulator, especially when using centrifugal weights with an increased stroke. To remove the levers 7 and 8, it is necessary to overcome the force of the spring 23, move the rod 19 to the right and bring the plate 25 positive corrector 14 from the inner bore of sleeve 24. In the case of using loads with a large stroke, dismantling of the levers may be accompanied by compression of the spring 22.

Thus, the placement of the thrust plate of the positive corrector connected to the lever of the regulator and interacting with the spring rod in the inner bore of the centering sleeve mounted on the spring rod allows one to increase the accuracy and extend the control limits of the centrifugal regulator.

Claims (1)

The claims A centrifugal diesel engine speed controller comprising a housing, a shaft with centrifugal weights, a clutch kinematically connected to centrifugal weights, a regulator lever mounted on a fixed axis, a fuel pump rail lever pivotally connected to the clutch and lever regulator, spring anticorrector installed between the lever of the rail and the lever of the regulator, positive corrector by a thrust plate, pivotally connected to the lever of the rail of the fuel pump, a guide sleeve fixedly mounted in the housing coaxially with the thrust plate of the positive corrector, a sleeve movably mounted in the direction the sleeve and spring-loaded relative to the positive corrector, a shaft with a shoulder, movably mounted in the sleeve and spring-loaded relative to the latter, moreover 0 the shaft shoulder is configured to interact with the thrust plate of the positive corrector, and the control lever is capable of limiting the movement of the sleeve, characterized in that, in order to increase the accuracy and expand the limits of regulation, the controller is equipped with a centering sleeve fixed to the shaft shoulder coaxially to the positive corrector , and the thrust plate of the positive corrector is placed by the internal bore of the centering sleeve.