# US 10,477,771 B2 · Agricultural harvester having a header based heat exchanger > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,477,771 B2 - Document ID: US10477771B2 - Status: Granted - Kind: B2 - Application number: 15/684,521 - Filed: 2017-08-23 - Published: 2017-12-07 - Granted: 2019-11-19 - Earliest claimed: 2015-09-15 - Assignees: CNH Industrial America LLC - Applicants: CNH Industrial America LLC - Inventors: Joshua Steward Joyce - Web page: https://patentgrep.com/patent/US10477771B2 ## CPC - A01D 69/03: fluid - A01D 41/06: Combines with headers - A01D 41/142: {Header drives} - F28D 15/00: Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls {; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies (F28D17/00, F28D19/00, F28D20/00 take precedence)} - A01D 2101/00: Lawn-mowers - F28D 2021/0019: {Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for} - F28D 2021/0089: {Oil coolers} - A01D: HARVESTING; MOWING - F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general) ## Abstract An agricultural harvester having a combine and a header is provided. The combine includes a primary hydraulic system for use in operations of the combine. The primary hydraulic system includes primary hydraulic fluid. The header is attachable to the combine and includes a header hydraulic system having a header hydraulic fluid and a heat exchanger operatively connected to the primary hydraulic system and the header hydraulic system. ## Claims ### Claim 1 An agricultural harvester header for operative attachment to a combine, the header comprising: an agricultural harvester header hydraulic system having a header hydraulic fluid, and a heat exchanger operatively connected to the agricultural harvester header hydraulic system and configured to transfer heat between the header hydraulic fluid and another hydraulic fluid. ### Claim 2 (depends on 1) The agricultural harvester header of claim 1, wherein the heat exchanger is in fluid communication with the agricultural harvester header hydraulic system. ### Claim 3 (depends on 1) The agricultural harvester header of claim 1, further comprising a motor, and wherein the heat exchanger is operatively connected to the agricultural harvester header hydraulic system downstream the motor. ### Claim 4 (depends on 1) The agricultural harvester header of claim 1, further comprising a reservoir, and wherein the heat exchanger is operatively connected to the agricultural harvester header hydraulic system upstream the reservoir. ### Claim 5 (depends on 1) The agricultural harvester header of claim 1, further comprising a pump, and wherein the heat exchanger is operatively connected to the agricultural harvester header hydraulic system downstream the pump. ### Claim 6 (depends on 1) The agricultural harvester header of claim 1, wherein the header hydraulic fluid is oil. ### Claim 7 (depends on 1) The agricultural harvester header of claim 1, wherein the heat exchanger is a shell and tube heat exchanger, a plate heat exchanger, a plate and shell heat exchanger, a plate fin heat exchanger, or a direct contact heat exchanger. ### Claim 8 (depends on 1) The agricultural harvester header of claim 1, further comprising a coupler for connecting the agricultural harvester header to the combine. ### Claim 9 (depends on 1) The agricultural harvester header of claim 1, wherein the heat exchanger includes an input for receiving said another hydraulic fluid. ### Claim 10 (depends on 1) The agricultural harvester header of claim 1, further comprising a reel drive motor, and wherein the heat exchanger is operatively connected to the agricultural harvester header hydraulic system downstream the reel drive motor. ### Claim 11 (depends on 1) The agricultural harvester header of claim 1, wherein the agricultural harvester header hydraulic system comprises a closed hydraulic circuit in fluid communication with the heat exchanger, and a motor, a pump and a reservoir. ### Claim 12 An agricultural harvester header attachable to a combine having a primary hydraulic system that includes a primary hydraulic fluid, the agricultural harvester header comprising: an agricultural harvester header hydraulic system having a header hydraulic fluid, and a two-fluid type heat exchanger operatively connected to the agricultural harvester header hydraulic system and configured to exchange heat with the primary hydraulic system. ### Claim 13 (depends on 12) The agricultural harvester header of claim 12, wherein the heat exchanger is configured to be in fluid communication with the primary hydraulic system and the agricultural harvester header hydraulic system. ### Claim 14 (depends on 12) The agricultural harvester header of claim 12, further comprising a motor, and wherein the heat exchanger is operatively connected to the agricultural harvester header hydraulic system downstream the motor. ### Claim 15 (depends on 12) The agricultural harvester header of claim 12, wherein the heat exchanger is a shell and tube heat exchanger, a plate heat exchanger, a plate and shell heat exchanger, a plate fin heat exchanger, or a direct contact heat exchanger. ### Claim 16 (depends on 12) The agricultural harvester header of claim 12, further comprising a reservoir, and wherein the heat exchanger is operatively connected to the agricultural harvester header hydraulic system upstream the reservoir. ### Claim 17 (depends on 12) The agricultural harvester header of claim 12, further comprising a pump, and wherein the heat exchanger is operatively connected to the agricultural harvester header hydraulic system downstream the pump. ### Claim 18 (depends on 12) The agricultural harvester header of claim 12, wherein the agricultural harvester header hydraulic system comprises a closed hydraulic circuit in fluid communication with the heat exchanger, and a motor, a pump and a reservoir. ### Claim 19 An agricultural harvester header for attaching to a combine comprising a primary hydraulic system having a cooler and a primary hydraulic fluid, the agricultural harvester header comprising: an agricultural harvester header hydraulic system having a pump, a motor and a reservoir and forming a closed hydraulic circuit therewith, and an oil-based header hydraulic fluid independent of the primary hydraulic fluid, and a heat exchanger operatively connectable to the primary hydraulic system and the agricultural harvester header hydraulic system downstream the pump.