US 10,480,513 B2Granted

Intermediate discharge port for a compressor

AssigneeTrane International Inc.

InventorEric S. Mlsna

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Abstract

An intermediate discharge port in a scroll compressor and a method for controlling part-load efficiency of a scroll compressor are disclosed. The compressor includes a compressor housing; a non-orbiting scroll member and an orbiting scroll member forming a compression chamber; a discharge port for receiving a compressed fluid; and an intermediate discharge port fluidly connected between the compression chamber and the discharge port, the intermediate discharge port including a sealing member, fluid flow being prevented between the compression chamber and the discharge port through the intermediate discharge port when in a flow-blocked state, and fluid flow being enabled between the compression chamber and the discharge port through the intermediate discharge port when in a flow-permitted state.

Claims17

Dependent claims

A compressor, comprising:

a compressor housing;
a non-orbiting scroll member and an orbiting scroll member forming a compression chamber;
a discharge port for receiving a compressed fluid;
and
an intermediate discharge port fluidly connected between the compression chamber and the discharge port, the intermediate discharge port including:
a first portion having a first diameter, the first portion disposed adjacent the compression chamber,
a second portion having a second diameter different from the first diameter, the second portion disposed adjacent the first portion and adjacent the discharge port,
a sealing member disposed within the intermediate discharge port, wherein the sealing member includes a center portion having a diameter and a plurality of protrusions,
fluid flow being prevented between the compression chamber and the discharge port through the intermediate discharge port when in a flow-blocked state, and
fluid flow being enabled between the compression chamber and the discharge port through the intermediate discharge port when in a flow-permitted state.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/758,253Filed 14 Sep 2016 · us provisional application
Priority: 14 Sep 2015
Published: US 2018/0245595 A130 Aug 2018
Granted: 19 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F04C 29/12
Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00: arrangements for…
F04C 18/0215
Both members having co-operating elements in spiral form: where only one member is moving
F04C 28/16
Characterised by changing the positions of the inlet or outlet openings with respect to the working chamber: using lift valves
F25B 1/04
Compression machines, plants or systems with non-reversible cycle: with compressor of rotary type

Family

Application62/218,091Us provisional application · filed 14 Sep 2015
US 2018/0245595 A1Pre-grant publication · published 30 Aug 2018
US 10,480,513 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

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