# US 2013/0239583 A1 · Pump system for hpc eps parasitic loss elimination > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0239583 A1 - Document ID: US20130239583A1 - Status: Published application - Kind: A1 - Application number: 13/419,679 - Filed: 2012-03-14 - Published: 2013-09-19 - Earliest claimed: 2012-03-14 - Assignees: United Technologies Corporation - Inventors: Gabriel L. Suciu; Jorn A. Glahn; Brian D. Merry; Christopher M. Dye - Web page: https://patentgrep.com/patent/US20130239583A1 ## CPC - F01D 15/08: Adaptations for driving, or combinations with, pumps - F02C 6/08: the gas being bled from the gas-turbine compressor - F02C 7/32: Arrangement, mounting, or driving, of auxiliaries - F02C 3/10: with another turbine driving an output shaft but not driving the compressor - F02C 6/04: Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output (F02C6/18 takes precedence {; for a fluidised-bed combustor F02C3/205}) - F02C 7/14: of fluids in the plant {, e.g. lubricant or fuel (F02C7/185 takes precedence)} - F02C 9/16: Control of working fluid flow (F02C9/48 takes precedence; control of air-intake flow F02C7/057) - Y02T 50/60: Efficient propulsion technologies, e.g. for aircraft - F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D) - F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00) - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An engine includes a duct containing a flow of cool air and a pump system for providing air to an environmental control system. The pump system has an impeller having an inlet for receiving cool air from the duct and an outlet for discharging air to the environmental control system. ## Claims ### Claim 1 An engine comprising: a duct containing a flow of cool air; a pump system for providing air to an environmental control system; and said pump system comprising an impeller having an inlet for receiving cool air from said duct and an outlet for discharging air to said environmental control system. ### Claim 2 (depends on 1) The engine according to claim 1, further comprising: an intake manifold for receiving said air from said duct and for delivering said air to said intake. ### Claim 3 (depends on 2) The engine according to claim 2, further comprising: a discharge manifold for delivering said air from said outlet to said environmental control system. ### Claim 4 (depends on 3) The engine according to claim 3, wherein said environmental control system includes an aircraft precooler and said discharge manifold delivers said air to said aircraft precooler. ### Claim 5 (depends on 3) The engine according to claim 3, further comprising a valve incorporated into said discharge manifold to control the flow of said air through said discharge manifold. ### Claim 6 (depends on 1) The engine according to claim 1, wherein said pump system further comprises a towershaft for driving said impeller. ### Claim 7 (depends on 6) The engine according to claim 6, further comprising a spool and said towershaft being connected to said spool by a drive gear. ### Claim 8 (depends on 7) The engine according to claim 7, wherein said spool is a low spool connected to a fan. ### Claim 9 (depends on 7) The engine according to claim 7, wherein said spool is a high spool connected to a high pressure compressor. ### Claim 10 (depends on 1) The engine according to claim 1, wherein said engine has a fan and said duct is a by-pass duct having an air stream created by said fan. ### Claim 11 A pump system for providing air to an environmental control system, said pump system comprising: an air intake for receiving air from a supply of air; an impeller having an intake for receiving said air and an outlet for discharging said air; and a discharge manifold for delivering said air from said outlet to said environmental control system. ### Claim 12 (depends on 11) The pump system of claim 11, further comprising a towershaft for driving said impeller. ### Claim 13 (depends on 12) The pump system of claim 12, wherein said towershaft is driven by a spool of an engine. ### Claim 14 (depends on 13) The pump system of claim 13, wherein said spool is a low spool. ### Claim 15 (depends on 13) The pump system of claim 13, wherein said spool is a high spool. ### Claim 16 (depends on 13) The pump system of claim 13, wherein said towershaft is connected to said spool by a drive gear. ### Claim 17 (depends on 11) The pump system of claim 11, further comprising a valve incorporated into said discharge manifold.