# US 10,371,034 B2 · Combination exhaust gas heat exchanger/noise reduction member > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,371,034 B2 - Document ID: US10371034B2 - Status: Granted - Kind: B2 - Application number: 14/565,950 - Filed: 2014-12-10 - Published: 2016-06-16 - Granted: 2019-08-06 - Earliest claimed: 2014-12-10 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Allen Dennis Dobryden; Daniel Neville; Michael Reibling; Keith A. Campbell; Philip Warner - Web page: https://patentgrep.com/patent/US10371034B2 ## CPC - F01N 5/02: the devices using heat - B60H 1/00328: {of the liquid-air type} - B60H 1/20: using an intermediate heat-transferring medium - F01N 1/166: {for changing the flow path through the silencer or for adjusting the dimensions of a chamber or a pipe (F01N1/165 takes precedence)} - F01N 2230/00: Combination of silencers and other devices - F01N 2240/02: a heat exchanger - F01N 2590/11: for hybrid vehicles - F01P 2060/00: Cooling circuits using auxiliaries - Y02T 10/12: Improving ICE efficiencies - F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16) - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES - F01P: COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES (arrangements in connection with cooling of propulsion units in vehicles B60K11/00; heat-transfer, heat-exchange or heat-storage materials C09K5/00; {cooling of gas-turbine engines F02C7/12}; heat exchange in general, radiators F28) - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract A combination exhaust gas heat exchanger and noise reduction unit is disclosed, whereby a heat exchanger and a noise reduction member are arranged side-by-side and integrated as a unit. A heat exchanger outlet opens directly into a chamber of the noise reduction member. In one arrangement, a bypass valve serves to selectively direct exhaust gas into either the heat exchanger or the noise reduction member, depending on an operating condition of an associated engine. ## Claims ### Claim 1 An exhaust gas heat exchanger, comprising: a noise reduction member arranged side-by-side and integrated with the heat exchanger as a single unit, a common wall member partially defining the noise reduction member and the heat exchanger, wherein a heat exchanger outlet opens directly into a chamber of the noise reduction member. ### Claim 2 (depends on 1) The exhaust gas heat exchanger of claim 1, wherein the common wall member is positioned between the chamber of the noise reduction member and a heat exchanger chamber to separate the heat exchanger and the noise reduction member within the unit. ### Claim 3 (depends on 1) The exhaust gas heat exchanger of claim 1, further comprising an inlet member that extends from a first end of the noise reduction member and an outlet that extends from a second end of the noise reduction member, wherein a first end of the inlet member is fluidly connected to an engine such that exhaust gas is configured to flow into the inlet member. ### Claim 4 (depends on 3) The exhaust gas heat exchanger of claim 3, wherein the inlet member is fluidly connected to a primary inlet path member, and wherein the primary inlet path member is fluidly connected to a heat exchanger chamber. ### Claim 5 (depends on 4) The exhaust gas heat exchanger of claim 4, wherein the primary inlet path member includes a first end that intersects and opens into the inlet member. ### Claim 6 (depends on 4) The exhaust gas heat exchanger of claim 4, wherein the primary inlet path member is configured with a right angle with respect to the inlet member. ### Claim 7 (depends on 4) The exhaust gas heat exchanger of claim 4, further comprising a bypass valve arranged adjacent to the first end of the primary inlet path member, wherein the bypass valve is configured to selectively open or close the primary inlet path member according to an operating condition of an associated engine. ### Claim 8 (depends on 7) The exhaust gas heat exchanger of claim 7, wherein the bypass valve is operatively connected to a control system and wherein the control system outputs a signal to actuate the bypass valve to close off the primary inlet path member according to a predetermined operating condition of the engine. ### Claim 9 (depends on 3) The exhaust gas heat exchanger of claim 3, further comprising at least one coolant tube, each coolant tube comprising an inlet and an outlet, wherein a portion of each coolant tube is disposed within the heat exchanger chamber such that coolant is directed through the inlet of each coolant tube and into the heat exchanger chamber, heated by the exhaust gas, and directed through the outlet of each coolant tube. ### Claim 10 (depends on 9) The exhaust gas heat exchanger of claim 9, wherein the coolant tube has a generally U-shape. ### Claim 11 (depends on 9) The exhaust gas heat exchanger of claim 9, wherein the coolant tube is configured as a coil. ### Claim 12 (depends on 1) The exhaust gas heat exchanger of claim 1, wherein the noise reduction member is a resonator. ### Claim 13 An exhaust gas heat exchanger and resonator unit, comprising: a heat exchanger and a resonator arranged side-by-side and integrated as a unit, wherein a heat exchanger outlet opens directly into a resonator chamber of the resonator; a common wall member positioned between and partially defining the resonator chamber and a heat exchanger chamber to separate the heat exchanger and the resonator within the unit; an inlet member that extends from a first end of the resonator and an outlet that extends from a second end of the resonator, wherein a first end of the inlet member is configured for fluidly connecting to an engine such that exhaust gas is configured to flow into the inlet member; wherein the inlet member is fluidly connected to a primary inlet path member, and wherein the primary inlet path member is fluidly connected to the heat exchanger chamber; and a bypass valve arranged adjacent to a first end of the primary inlet path member, wherein the bypass valve is configured to selectively open or close the primary inlet path member according to an operating condition of the engine; wherein when the primary inlet path member is closed, exhaust gas is directed through the inlet member and directly into the resonator chamber. ### Claim 14 (depends on 13) The exhaust gas heat exchanger and resonator unit of claim 13, wherein the bypass valve is operatively connected to a control system and wherein the control system outputs a signal to actuate the bypass valve to close off the primary inlet path member according to a predetermined operating condition of the engine. ### Claim 15 (depends on 14) The exhaust gas heat exchanger and resonator unit of claim 14, further comprising at least one coolant tube having an inlet and an outlet, wherein a portion of the coolant tube is disposed within the heat exchanger chamber such that coolant is directed through the inlet of the coolant tube and into the heat exchanger chamber, heated by the exhaust gas, and directed through the outlet of the coolant tube. ### Claim 16 An exhaust gas heat exchanger and noise reduction member unit, comprising: a heat exchanger and a noise reduction member arranged side-by-side and integrated as a unit, wherein a heat exchanger outlet opens directly into a chamber of the noise reduction member; a common wall member positioned between and partially defining the chamber of the noise reduction member and a heat exchanger chamber to separate the heat exchanger and the noise reduction member within the unit; an inlet member that extends from a first end of the noise reduction member and an outlet that extends from a second end of the noise reduction member, wherein a first end of the inlet member is fluidly connected to an engine such that exhaust gas is configured to flow into the inlet member; wherein the inlet member is fluidly connected to a primary inlet path member, and wherein the primary inlet path member is fluidly connected to the heat exchanger chamber; a bypass valve arranged adjacent to a first end of the primary inlet path member, wherein the bypass valve is configured to selectively open or close the primary inlet path member according to an operating condition of the engine; wherein when the primary inlet path member is closed, exhaust gas is directed through the inlet member and directly into the chamber of the noise reduction member; and at least one coolant tube having an inlet and an outlet, wherein a portion of the coolant tube is disposed within the heat exchanger chamber such that coolant is directed through the inlet of the coolant tube and into the heat exchanger chamber, heated by the exhaust gas passing through the heat exchanger, and then directed through the outlet of the coolant tube.