Improved plunger type fluid pump and motor

• Main Authors: YU MINGZHEN, WANG XINBIAO, HU KAI
• Format: Patent
• Language: English
• Published: 13.05.2015
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS; PRODUCING MECHANICAL POWER; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

The invention discloses an improved plunger type fluid pump and motor. The improved plunger type fluid pump and improved motor comprises a cylinder body which is arranged on a shaft and with a fluid cavity, multiple plunger piston components which slide in the cylinder body, a variable disc which makes contact with the plunger piston components, a variable mechanism which is connected with the variable disc, and a plunger piston holding device which holds the plunger piston components to separate or restore to make contact with the the variable disc. By means of the improved plunger type fluid pump and improved motor, the problems that the unnecessary power consumption and the temperature rise are caused due to the facts that large flow is still output by the fluid pump and the motor in an occasion and time that working is not needed and the back pressure exists, and the mechanical wear is increased are solved, so that the output flow of the fluid pump and the motor is zero when the working is not needed, and the power consumption in nonworking time is eliminated; friction pieces do not make contact with each other, so that the mechanical friction loss is eliminated, the fluid circulation is stopped, and the unnecessary fluid temperature rise is eliminated.