초록

A crawler that includes a first crawler assembly and a second crawler assembly attached to the first crawler assembly so that the first crawler assembly is aligned with the direction of travel of the second crawler assembly.

대표청구항 ▼

A crawler that includes a first crawler assembly and a second crawler assembly attached to the first crawler assembly so that the first crawler assembly is aligned with the direction of travel of the second crawler assembly. the feed line; an inlet for liquid, connected to the outlet of the liquid

A crawler that includes a first crawler assembly and a second crawler assembly attached to the first crawler assembly so that the first crawler assembly is aligned with the direction of travel of the second crawler assembly. the feed line; an inlet for liquid, connected to the outlet of the liquid container; a gas chamber, connected to the second line; and a spindle arranged between the liquid chamber and the gas chamber and movable between a first position, wherein the spindle closes the inlet such that the outlet of the liquid container is not in communication with the liquid chamber via the inlet and a second position, wherein the spindle opens the inlet such that the outlet of the liquid container is in communication with the liquid chamber via the inlet. 2. A fire extinguishing installation as claimed in claim 1, wherein the second line comprises a first throttle, and that the gas chamber is connected to the second line between the first throttle and the gas container. 3. A fire extinguishing installation as claimed in claim 1, further comprising a second throttle in the feed line between the outlet of the liquid container and the connection point, the second throttle being connected in parallel with the liquid chamber of the valve. 4. A fire extinguishing installation as claimed in claim 1, wherein the spindle comprises an action surface, on which the liquid pressure acts when the spindle is in the first position, a shoulder surface, on which the liquid pressure acts only when the spindle is in the second position, and a gas chamber surface, which points at the gas chamber and is larger than the action surface. 5. A fire extinguishing installation as claimed in claim 2, wherein the spindle comprises an action surface, on which the liquid pressure acts when the spindle is in the first position, a shoulder surface, on which the liquid pressure acts only when the spindle is in the second position, and a gas chamber surface, which points at the gas chamber and is larger than the action surface. 6. A fire extinguishing installation as claimed in claim 3, wherein the spindle comprises an action surface, on which the liquid pressure acts when the spindle is in the first position, a shoulder surface, on which the liquid pressure acts only when the spindle is in the second position, and a gas chamber surface, which points at the gas chamber and is larger than the action surface. 7. A fire extinguishing installation as claimed in claim 1, wherein the valve comprises a spring arranged to load the spindle. 8. A fire extinguishing installation as claimed in claim 2, wherein the valve comprises a spring arranged to load the spindle. 9. A fire extinguishing installation as claimed in claim 1, wherein the liquid container contains water. 10. A fire extinguishing installation as claimed in claim 2, wherein the liquid container contains water. 11. A fire extinguishing installation as claimed in claim 1, wherein the gas container contains incombustible gas. 12. A fire extinguishing installation as claimed in claim 2, wherein the gas container contains incombustible gas. 13. A fire extinguishing installation as claimed in claim 11, wherein the gas container contains nitrogen at a pressure of 50 to 300 bar. 14. A fire extinguishing installation as claimed in claim 13, wherein the first line is provided with a non-return valve, which is arranged to prevent a medium flow from the liquid container to the second line.