초록 ▼

A fluid power operated advancing unit has housing and a plunger adapted to run axially therein. The plunger is designed in the form of a three sided prismatic body at least along its length section running in the housing, said body being guided in the housing at its three side surface, whereas three

A fluid power operated advancing unit has housing and a plunger adapted to run axially therein. The plunger is designed in the form of a three sided prismatic body at least along its length section running in the housing, said body being guided in the housing at its three side surface, whereas three transitions between respective adjacent side are not guided. The result is accordingly an extremely accurate guiding action for the plunger while simultaneously preventing rotation thereof.

대표청구항 ▼

A fluid power advancing unit comprising: a housing having an axial bore therein opening at a first end thereof; a plunger adapted to slide axially in the bore of the housing for extension therefrom under the influence of a drive fluid, wherein the axial bore in the housing and the plunger are substa

A fluid power advancing unit comprising: a housing having an axial bore therein opening at a first end thereof; a plunger adapted to slide axially in the bore of the housing for extension therefrom under the influence of a drive fluid, wherein the axial bore in the housing and the plunger are substantially triangular in cross-section; first guide elements fixed in the axial bore of the housing adjacent to the first end thereof; and second guide elements fixed on the plunger at an end distal to the housing opening, said second guide elements sliding within the axial bore of the housing upon activation of the plunger.