Design and Performance Analysis of Plunger pump

• Main Authors: Chung-Kai Yu, 游仲凱
• Other Authors: Hsien-I You
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/54201639575091944793

碩士 === 南開科技大學 === 車輛與機電產業研究所 === 99 === The design and manufacturing of a piston pump is conducted in the present paper. Researches are focused on two mechanical key points used for the development of plunger pump, i.e.,(1) the contact mechanism of the driving swash-plate and the cylinder block, (2) the fine tolerance necessary for efficient operation of the reciprocating piston-cylinder assembly. The integrated units completed in the present program are replaced with the corresponding parts of the original purchased piston pump in the performance tests. One part of this program is to design and manufacturing of a swashplate. The properly designed contact geometry of the plate is produced based on the principle of optimum lubricating and minimum contact stress with the cylinder block. The wear mechanisms are inspected during the running tests. The second part of this program is to design and manufacturing of a piston/cylinder assembly based on the design philosophy applicable for plunger pump. The completed mechanical units are assembled on the testing-piston-pump and put on an oil test apparatus for the performance and temperature measurements. The expected problems during the developing process will be the development of the precision manufacturing technique used for piston/cylinder assembly with the fitting tolerance within a few 0.01mm, and also the taper angle of the slender plunger less than 1°. However, with high precision machines and strong machining skill, the manufacturing difficult points are solved accordingly.