Device for adjusting fuel quantity consistency of cylinders of multicylinder fuel injection pump
A fuel injection pump, consistent technology, applied in the direction of fuel injection pump, fuel injection control, engine control, etc., can solve the problems of sealing gasket failure, poor sealing, troublesome operation, etc. Strong, reduce the volume of the pump body, solve the effect of poor sealing
Inactive Publication Date: 2015-04-08
NANJING WEIFU JINNING
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Problems solved by technology
[0004] 1. The existing solution not only needs to process two more adjustment positioning pin holes on the pump body, but also requires O-ring seals. The structure is complex and the seal is not good.
[0005] 2. It is necessary to loosen the tight seat of the oil outlet valve during adjustment, which is not only troublesome to operate, but also often loosening the tight seat of the oil outlet valve will cause the sealing gasket of the tight seat of the oil outlet valve to fail and cause poor sealing
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[0017] In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0018] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries shoul...
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The invention relates to a device for adjusting fuel quantity consistency of cylinders of a multicylinder fuel injection pump. A plunger bushing is mounted in a pump body of a fuel pump; a flat plunger structure is arranged at the lower end of a plunger and extends to the outside of the plunger bushing; a flat groove is formed at the bottom end of a control sleeve mounting barrel; the plunger bushing is sleeved with the control sleeve mounting barrel in a clearance fit manner; a fork comprises a fork locking screw hole matched with a control sleeve locking screw hole and a fork mounting hole formed in the middle of the fork; a fuel quantity control sleeve and the fork mutually rotate to adjust a relative angle between the fuel quantity control sleeve and the fork; and the fork locking screw hole is connected with the control sleeve locking screw hole via a connecting piece.The device for adjusting the fuel quantity consistency of the cylinders of the multicylinder fuel injection pump can greatly reduce the size of the pump body, avoids a hidden danger of poor sealability and has higher reliability.
Description
technical field [0001] The invention belongs to the technical field of oil quantity adjustment of a fuel injection pump, and in particular relates to a device for adjusting the consistency of the oil quantity of each cylinder of a multi-cylinder fuel injection pump. Background technique [0002] The oil volume consistency adjustment mechanism is a key part of the multi-cylinder fuel injection pump. At present, the conventional multi-cylinder fuel injection pump oil volume consistency adjustment structure is used: the position of the plunger sleeve is adjusted through the eccentric cylindrical pin to make the oil volume of each cylinder consistent, and this structure not only needs to process two more adjustment positions on the pump body The pin hole has a complex structure and poor sealing. [0003] Currently there are the following problems: [0004] 1. The existing solution not only needs to process two more adjustment positioning pin holes on the pump body, but also re...
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IPC IPC(8): F02D1/02
Inventor 王伟刘华勇马春燕王琦
Owner NANJING WEIFU JINNING