초록

The disclosure concerns a method of manufacturing scroll expander and a scroll compressor including winding together strips of different width so that the wider strip forms a scroll or spiral and the narrower strip partially occupies the inter-convolution spaces of the wider strip.

대표청구항 ▼

In the method of making a scroll type apparatus including a back plate and a spiral wrap on one face of said back plate, the steps which comprise: placing at least two strips of flexible material longitudinally of and in facing engagement with each other with at least one of said strips having one l

In the method of making a scroll type apparatus including a back plate and a spiral wrap on one face of said back plate, the steps which comprise: placing at least two strips of flexible material longitudinally of and in facing engagement with each other with at least one of said strips having one longitudinal edge located laterally beyond the remaining strip, and coiling said strips into a helix with adjacent convolutions in engagement with each other, whereby said coil strips combine laterally inwardly of said remaining strip to define a back plate, and said one strip laterally beyond said remaining strip defines a spiral wrap on said back plate.