| 摘要 |
A system for greasing a valve is provided. The system comprises a main valve connected to a compressed fluid source, a grease supply system, a main chamber, a left head assembly, a right head assembly, and a grease supply line in communication with the valve. The main chamber includes a piston that is slidable from a first end to a second end of the main chamber. In the first position, the main valve injects fluid into the first end of the main chamber, thereby charging the left head assembly with grease and simultaneously discharging grease from the right head assembly into the grease supply line. In the second position, the main valve injects fluid into the second end of the main chamber, thereby charging the right head assembly with grease and simultaneously discharging grease from the left head assembly into the grease supply line. |
| 主权项 |
1. An apparatus for greasing a valve comprising:
a main valve connected to a compressed fluid source, the main valve having a first position and a second position; a grease supply system having a supply of grease; a grease injection assembly comprising a main chamber, a left head assembly, a left channel in fluid communication with the left head assembly and extending from a first end of the main chamber to the left head assembly, a right head assembly and a right channel in fluid communication with the right head assembly and extending from a second end of the main chamber to the right head assembly, the grease injection assembly being in communication with the grease supply system and at least one grease supply line, and the at least one grease supply line being connectable into communication with the valve; and the main chamber having a piston therein forming a fluid seal between the first and second ends, the piston having a first piston face wherefrom a left plunger extends, and a second piston face wherefrom a right plungerextends, the left plunegplunger being inserted into the left channel and forming a fluidic seal between the main chamber and the left channel, and the right plunger being inserted into the right channel and forming a fluidic seal between the main chamber and the right channel, the piston being slidable from near the first end to near the second end of the main chamber and thereby move the right plunger into and out of the right chamber while alternately the left plungers is moved out of and into the left chamber; wherein in the first position, the main valve injects fluid into the first end of the main chamber, moving the piston towards the second end and simultaneously exhausting fluid from the second end, thereby retracting the left plunger from the left channel to thereby create a suction in and charge the left head assembly with grease from the grease supply system, and simultaneously driving the right plunger into the right channel to thereby discharge grease from the right head assembly into the at least one grease supply line; and wherein in the second position, the main valve injects fluid into the second end of the main chamber, moving the piston towards the first end and simultaneously exhausting fluid from the first end, thereby retracting the right plunger from the right channel to thereby create a suction in and charge the right head assembly with grease from the grease supply system, and simultaneously driving the left plunger into the left channel to thereby discharge grease from the left head assembly into the at least one grease supply line. |
