The working fluid which is between the gear’s beards of the shaft feeds and moves into the pressure line in shaft rotation.
The discharging of working fluid is done in case of shaft’s rotating and reciprocating motions.
The working fluid whit is between the plates of the shaft feeds and moves into the pressure line in shaft rotation.
Hand pump actuates directly by human efforts thought the instrumentality of leverage. The feed of pump relate on move frequency of leverage.