| 摘要 |
<p>A piston gas compressor comprising:
- a cylinder having a cylinder wall, a longitudinal axis and a cylinder cover at an end of the cylinder,
- a piston, which is reciprocable inside the cylinder, the piston comprising a piston body and at least one rider ring that extends around at least a part of the circumference of the piston body and bears against the cylinder wall, the piston delimiting a compression chamber in the cylinder, wherein the cylinder wall is provided with at least one inlet port to the compression chamber and with at least one outlet port from the compression chamber,
- a reciprocable piston rod, which is at a first end thereof connected to the piston and at a second end thereof to drive means of the compressor, preferably to a cross head which is guided in a frame of the compressor,
- a condition monitoring system comprising:
- a rider ring wear sensor and associated control unit for determination of rider ring wear by measuring a distance of the piston relative to the sensor.</p> |
