# US 2018/0320776 A1 · Transmission tunnel encapsulation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0320776 A1 - Document ID: US20180320776A1 - Status: Published application - Kind: A1 - Application number: 15/972,402 - Filed: 2018-05-07 - Published: 2018-11-08 - Earliest claimed: 2017-05-08 - Assignees: Jaguar Land Rover Limited - Applicants: Jaguar Land Rover Limited - Inventors: Paul CHANDLER; Gery FOSSAERT - Web page: https://patentgrep.com/patent/US20180320776A1 ## CPC - F16H 57/0415: {Air cooling or ventilation; Heat exchangers; Thermal insulations} - B60K 11/085: {with adjustable shutters or blinds} - B60K 17/00: Arrangement or mounting of transmissions in vehicles - F16H 57/0416: {Air cooling or ventilation} - F16H 57/0419: {Thermal insulations} - B60Y 2410/10: Housings - Y02T 10/88: Optimized components or subsystems, e.g. lighting, actively controlled glasses - F16H: GEARING - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An encapsulation device suitable for encapsulating a transmission component of an engine system that comprises a housing member configured to encapsulate the transmission component and define an air gap in a volume between an outer surface of the transmission component and an inner surface of the encapsulation device in use. The housing member is configured to allow air flow through the air gap during operation of the engine system and to retain a heated air layer around the encapsulated transmission component following engine system shutdown in use. The air gap enables convective cooling of the transmission components during periods when the vehicle is driving and additionally allows heat dissipation to occur when the vehicle engine is switched off. ## Claims ### Claim 1 An encapsulation device suitable for encapsulating a transmission component of an engine system comprising: a housing member configured to encapsulate the transmission component and define an air gap in a volume between an outer surface of the transmission component and an inner surface of the encapsulation device, wherein the housing member is configured to allow air flow through the air gap during operation of the engine system and to retain a heated air layer around the encapsulated transmission component following engine system shutdown, wherein the housing member comprises pressure actuated air outlet ducts. ### Claim 2 (depends on 1) An encapsulation device as claimed in claim 1, wherein the air outlet ducts are actuated by a motor. ### Claim 3 (depends on 1) An encapsulation device as claimed in claim 1, wherein the housing member comprises a first portion and a second portion configured to be fixed together to encapsulate the transmission component and define the air gap. ### Claim 4 (depends on 3) An encapsulation device as claimed in claim 3, wherein the first portion is disposed above the second portion. ### Claim 5 (depends on 3) An encapsulation device as claimed in claim 3, wherein the first portion is arranged to be attached on a vehicle tunnel. ### Claim 6 (depends on 3) An encapsulation device as claimed in claim 3, wherein the first portion is arranged to rest on the transmission component. ### Claim 7 (depends on 3) An encapsulation device as claimed in claim 3, wherein the second portion is removably attached to the first portion. ### Claim 8 (depends on 3) An encapsulation device as claimed in claim 3, wherein the air outlet ducts are located on a bottom panel of the second portion. ### Claim 9 (depends on 3) An encapsulation device as claimed in claim 3, wherein the air outlet ducts are located on a top panel of the first portion. ### Claim 10 (depends on 1) An encapsulation device as claimed in claim 1, wherein the housing member comprises a substantially vertical panel and the air outlet ducts are located on the substantially vertical panel. ### Claim 11 (depends on 1) An encapsulation device as claimed claim 1, wherein the housing member is configured to additionally encapsulate at least one of an exhaust component and an after-treatment component within the volume between the outer surface of the transmission component and the inner surface of the encapsulation device. ### Claim 12 (depends on 1) An encapsulation device as claimed in claim 1, wherein the housing member comprises an outer surface arranged to support an exhaust encapsulation housing for encapsulating at least one of an exhaust component and an after-treatment component. ### Claim 13 (depends on 1) An encapsulation device as claimed in claim 1, wherein the housing member comprises a heat reflective coating. ### Claim 14 A vehicle comprising: an engine system including a transmission component; and an encapsulation device comprising a housing member configured to encapsulate the transmission component and define an air gap in a volume between an outer surface of the transmission component and an inner surface of the encapsulation device, wherein the housing member is configured to allow air flow through the air gap during operation of the engine system and to retain a heated air layer around the encapsulated transmission component following engine system shutdown, wherein the housing member comprises pressure actuated air outlet ducts. ### Claim 15 A vehicle as claimed in 14, wherein the vehicle comprises a transmission oil pan; and the encapsulation device is arranged to encapsulate the transmission oil pan.