Oil pump and speed adjusting mechanism as well as positive-negative correction mechanism thereof
A technology of positive and negative correction and speed regulating mechanism, which is applied in the field of oil pump speed regulating mechanism, which can solve the problems that the speed regulating mechanism of VE pump cannot meet the torque reserve requirements of non-road vehicles and has no positive and negative correction, and achieve positive and negative correction adjustment The effect of simple process and simple structure
Inactive Publication Date: 2014-07-16
NANJING WEIFU JINNING
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Problems solved by technology
[0004] Although the use of the VE pump can meet the requirements of exhaust gas emission and noise reduction, but because the current VE pump only uses a negative correction mechanism, the speed regulating mechanism of the VE pump cannot meet the torque reserve requirements of non-road vehicles: see Figure 8 , the curve a in the figure is the engine torque speed curve with positive correction, and the curve b is the engine torque speed curve without positive correction. The required torque point is 186N.m / 1600rpm and the power is 36.8kw / 2400rpm during the running of the engine
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[0028] In order to make the purpose and technical solutions of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0029] Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as commonly understood by those of ordinary skill in the art to which the present invention belongs. It should also be understood that terms such as those defi...
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The invention discloses an oil pump and a speed adjusting mechanism as well as a positive-negative correction mechanism thereof. The speed adjusting mechanism comprises a positive correction support, a negative correction support, a positive correction rod, a positive correction spring, a negative correction rod and a negative correction spring, the positive correction rod is arranged at the upper ends of the positive correction support and the negative correction support, two ends of the positive correction rod are erected on the positive correction support and the negative correction support respectively, the positive correction spring is arranged on the positive correction rod between the positive correction support and the negative correction support, the negative correction rod is arranged at the lower ends of the positive correction support and the negative correction support, two ends of the negative correction rod are erected on the positive correction support and the negative correction support respectively, and the negative correction spring is arranged on the negative correction rod between the positive correction support and the negative correction support. The positive-negative correction mechanism meets requirements on torque reserve of non-road vehicles and is simple in structure and positive-negative correction and adjustment process.
Description
Technical field [0001] The present invention belongs to the technical field of speed regulating mechanisms of oil pumps, and in particular relates to a positive and negative correction mechanism for speed regulating mechanisms of oil pumps. [0002] Background technique [0003] As non-road vehicles have increased their diesel engine exhaust emission and noise requirements, the original in-line pump diesel engine can no longer meet the requirements. In the mid-1970s, the German company Bosch developed the VE single plunger distribution pump. With simple structure, perfect performance, small size and light weight, it is quickly favored by diesel engine manufacturers all over the world, and has been widely promoted, becoming the world's most produced multi-cylinder fuel injection pump. Subsequently, Denso Corporation and Jack Sail Corporation successively introduced German Bosch's patented technology to produce VE type distribution pumps. Compared with the in-line plunger injectio...
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Inventor 张长林范要军杨继定赵琛阔李培飞
Owner NANJING WEIFU JINNING