Self-Positioning Volume Slide Valve for Screw Compressor
AssigneeVilter Manufacturing Corporation
InventorsJean-Louis Picouet, Steven Fels
Life of this patent
Estimating the term…
Abstract
Dual slide valve assemblies having volume slide valve members that are self-positioning. The slide valve assemblies include a self-positioning volume slide valve mechanism that automatically slidably adjusts to control compressor volume ratio and power input to the compressor. The slide valve assemblies also include a capacity slide valve mechanism that is slidably movable to control compressor capacity.
Claims10
A slide valve assembly for use in a compressor, the slide valve assembly comprising:
- a slide valve carriage;
- a volume slide valve member secured to the slide valve carriage and slidably movable longitudinally with respect to the slide valve carriage, the volume slide valve member being self-positioning along the axis of movement;
- and
- a capacity slide valve mechanism secured to the slide valve carriage and slidably movable longitudinally with respect to the slide valve carriage, the capacity slide valve mechanism being slidably movable by a controller.
A compressor comprising:
- a slide valve assembly, wherein the slide valve assembly includes:
- a slide valve carriage;
- a volume slide valve member secured to the slide valve carriage and slidably movable longitudinally with respect to the slide valve carriage, the volume slide valve member being self-positioning along the axis of movement;
- and
- a capacity slide valve mechanism secured to the slide valve carriage and slidably movable longitudinally with respect to the slide valve carriage, the capacity slide valve mechanism being slidably movable by a controller to control compressor capacity.
A method of operating a compressor having a slide valve assembly, wherein the slide valve assembly includes:
- a slide valve carriage;
- a volume slide valve member secured to the slide valve carriage and slidably movable longitudinally with respect to the slide valve carriage, the volume slide valve member being self-positioning along the axis of movement;
- and a capacity slide valve mechanism secured to the slide valve carriage and slidably movable longitudinally with respect to the slide valve carriage, the capacity slide valve mechanism being slidably movable by a controller to control compressor capacity;
- the method comprising:
- operating the compressor under operation conditions that cause unbalanced forces acting upon the volume slide member;
- adjusting the position of the slide valve member by self-positioning of the slide valve member in response to the unbalanced forces;
- and
- operating the compressor under operation conditions where there are balanced forces acting upon the volume slide member.
Dependencies are inferred from the claim text.