Robert S. McAlpine

Person

Lake Orion, MI, US

People

Patents Grantslast 30 patents

Information Patent Grant
Pneumatic resonator and accumulator system for control of turbochar...
- Patent number 11,598,253
- Issue date Mar 7, 2023
- GM Global Technology Operations LLC
- Lisa M. Marcella-O'Leary
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Dedicated exhaust gas recirculation control systems and methods
- Patent number 11,060,471
- Issue date Jul 13, 2021
- GM Global Technology Operations LLC
- Edward J. Keating
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Cam follower assembly and method of manufacturing thereof
- Patent number 10,378,393
- Issue date Aug 13, 2019
- GM Global Technology Operations LLC
- Alan W Hayman
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Engine control systems and methods for nitrogen oxide reduction
- Patent number 10,077,727
- Issue date Sep 18, 2018
- GM Global Technology Operations LLC
- David P. Sczomak
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Variable-speed supercharger for highly diluted internal combustion...
- Patent number 10,018,128
- Issue date Jul 10, 2018
- GM Global Technology Operations LLC
- Ko-Jen Wu
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Exhaust valve and an engine assembly including the exhaust valve ha...
- Patent number 9,797,279
- Issue date Oct 24, 2017
- GM Global Technology Operations LLC
- Terry A. Tomas
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
High damping low force hydraulic strut tensioner
- Patent number 9,714,694
- Issue date Jul 25, 2017
- GM Global Technology Operations LLC
- Eric D. Staley
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Engine with a turbocharger cooling module
- Patent number 9,670,823
- Issue date Jun 6, 2017
- GM Global Technology Operations LLC
- Alan W. Hayman
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Dedicated EGR engine with dynamic load control
- Patent number 9,435,298
- Issue date Sep 6, 2016
- GM Global Technology Operations LLC
- Alan W. Hayman
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Camshaft assembly for an internal combustion engine
- Patent number 9,422,833
- Issue date Aug 23, 2016
- GM Global Technology Operations LLC
- Alan W. Hayman
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Fuel consumption based cylinder activation and deactivation control...
- Patent number 9,341,128
- Issue date May 17, 2016
- GM Global Technology Operations LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine inlet for EGR-air flow distribution
- Patent number 9,322,364
- Issue date Apr 26, 2016
- GM Global Technology Operations LLC
- Edward J. Keating
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine assembly including crankshaft for V8 arrangement
- Patent number 9,316,151
- Issue date Apr 19, 2016
- GM Global Technology Operations LLC
- Edward J. Keating
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Crankshaft for variable displacement internal combustion engine
- Patent number 9,297,318
- Issue date Mar 29, 2016
- GM Global Technology Operations LLC
- Alan W. Hayman
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Reduced torque variation for engines with active fuel management
- Patent number 9,284,894
- Issue date Mar 15, 2016
- GM Global Technology Operations LLC
- Hatem Zakaria Orban
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Split/dual plane integrated exhaust manifold for dual scroll turbo...
- Patent number 9,133,745
- Issue date Sep 15, 2015
- GM Global Technology Operations LLC
- Akram R. Zahdeh
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine assembly with variable valve displacement on one cylinder ba...
- Patent number 9,109,507
- Issue date Aug 18, 2015
- GM Global Technology Operations LLC
- Alan W. Hayman
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Targeted cooling with individualized feeding ports to cylinders
- Patent number 8,960,134
- Issue date Feb 24, 2015
- GM Global Technology Operations LLC
- Akram R. Zahdeh
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Dual path SAIR for dual plane integrated exhaust manifolds
- Patent number 8,850,804
- Issue date Oct 7, 2014
- GM Global Technology Operations LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Valvetrain for overhead valve engine
- Patent number 8,794,204
- Issue date Aug 5, 2014
- GM Global Technology Operations LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Internal combustion engine
- Patent number 8,671,920
- Issue date Mar 18, 2014
- GM Global Technology Operations LLC
- Alan W. Hayman
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Cylinder deactivation to reduce fuel enrichment after fuel cutoff m...
- Patent number 8,667,953
- Issue date Mar 11, 2014
- GM Global Technology Operations LLC
- Robert Jack Gallon
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Engine assembly including camshaft with independent cam phasing
- Patent number 8,651,075
- Issue date Feb 18, 2014
- GM Global Technology Operations LLC
- Alan W. Hayman
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Engine assembly including camshaft with multimode lobe
- Patent number 8,544,436
- Issue date Oct 1, 2013
- GM Global Technology Operations LLC
- Alan W. Hayman
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Engine rocker arm
- Patent number 8,327,814
- Issue date Dec 11, 2012
- GM Global Technology Operations LLC
- Hatem Zakaria Orban
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Camshaft damping mechanism and method of assembly
- Patent number 8,109,246
- Issue date Feb 7, 2012
- GM Global Technology Operations LLC
- Robert Jack Gallon
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Dry sump oil tank assembly for a vehicle
- Patent number 8,028,672
- Issue date Oct 4, 2011
- GM Global Technology Operations LLC
- Gregory P. Prior
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
High performance overhead valvetrain assembly
- Patent number 7,878,168
- Issue date Feb 1, 2011
- GM Global Technology Operations LLC
- Alan W. Hayman
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Hydraulically lashed end pivot rocker arm
- Patent number 7,753,017
- Issue date Jul 13, 2010
- GM Global Technology Operations, Inc.
- Eric C. Douse
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
Dedicated Exhaust Gas Recirculation Control Systems and Methods
- Publication number 20210215111
- Publication date Jul 15, 2021
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Edward J. KEATING
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
CAM FOLLOWER ASSEMBLY AND METHOD OF MANUFACTURING THEREOF
- Publication number 20180347412
- Publication date Dec 6, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W Hayman
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
THREE CYLINDER HEAD FOR A DEDICATED EGR INTERNAL COMBUSTION ENGINE...
- Publication number 20180058390
- Publication date Mar 1, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
VARIABLE-SPEED SUPERCHARGER FOR HIGHLY DILUTED INTERNAL COMBUSTION...
- Publication number 20180038293
- Publication date Feb 8, 2018
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Ko-Jen WU
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE CONTROL SYSTEMS AND METHODS FOR NITROGEN OXIDE REDUCTION
- Publication number 20170198652
- Publication date Jul 13, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- David P. SCZOMAK
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
HIGH DAMPING LOW FORCE HYDRAULIC STRUT TENSIONER
- Publication number 20170059010
- Publication date Mar 2, 2017
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Eric D. STALEY
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
ENGINE WITH A TURBOCHARGER COOLING MODULE
- Publication number 20160281582
- Publication date Sep 29, 2016
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- B60 - VEHICLES IN GENERAL
Information Patent Application
EXHAUST VALVE AND AN ENGINE ASSEMBLY INCLUDING THE EXHAUST VALVE HA...
- Publication number 20160265396
- Publication date Sep 15, 2016
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Terry A. Tomas
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
DEDICATED EGR ENGINE WITH DYNAMIC LOAD CONTROL
- Publication number 20160258369
- Publication date Sep 8, 2016
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
CAMSHAFT ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE
- Publication number 20160146062
- Publication date May 26, 2016
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
FUEL CONSUMPTION BASED CYLINDER ACTIVATION AND DEACTIVATION CONTROL...
- Publication number 20150361907
- Publication date Dec 17, 2015
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Split/Dual Plane Integrated Exhaust Manifold For Dual Scroll Turbo...
- Publication number 20150059339
- Publication date Mar 5, 2015
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Akram R. Zahdeh
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Targeted Cooling With Individualized Feeding Ports To Cylinders
- Publication number 20150034028
- Publication date Feb 5, 2015
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Akram R. ZAHDEH
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
Engine Inlet For EGR-Air Flow Distribution
- Publication number 20150020781
- Publication date Jan 22, 2015
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Edward J. Keating
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Dedicated EGR Engine with Dynamic Load Control
- Publication number 20150013651
- Publication date Jan 15, 2015
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Reduced Torque Variation for Engines with Active Fuel Management
- Publication number 20140360459
- Publication date Dec 11, 2014
- Hatem Zakaria Orban
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
CRANKSHAFT FOR VARIABLE DISPLACEMENT INTERNAL COMBUSTION ENGINE
- Publication number 20140283783
- Publication date Sep 25, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
DUAL PATH SAIR FOR DUAL PLANE INTEGRATED EXHAUST MANIFOLDS
- Publication number 20140230772
- Publication date Aug 21, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. HAYMAN
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE ASSEMBLY WITH VARIABLE VALVE DISPLACEMENT ON ONE CYLINDER BA...
- Publication number 20140109847
- Publication date Apr 24, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
INLET MANIFOLD WITH DUAL PORT EGR
- Publication number 20140102429
- Publication date Apr 17, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
CENTRIFUGAL PUMP
- Publication number 20140030086
- Publication date Jan 30, 2014
- David R. Staley
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
PUMP IMPELLER
- Publication number 20140030099
- Publication date Jan 30, 2014
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
CRANKSHAFT FOR AN INTERNAL COMBUSTION ENGINE
- Publication number 20130146004
- Publication date Jun 13, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Internal Combustion Engine
- Publication number 20120260897
- Publication date Oct 18, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
ENGINE ASSEMBLY INCLUDING CRANKSHAFT FOR V4 ARRANGEMENT
- Publication number 20120234270
- Publication date Sep 20, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- EDWARD J. KEATING
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE ASSEMBLY INCLUDING CRANKSHAFT FOR V8 ARRANGEMENT
- Publication number 20120210958
- Publication date Aug 23, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- EDWARD J. KEATING
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
ENGINE ASSEMBLY INCLUDING CAMSHAFT WITH INDEPENDENT CAM PHASING
- Publication number 20120145103
- Publication date Jun 14, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- ALAN W. HAYMAN
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
ENGINE ASSEMBLY INCLUDING CAMSHAFT WITH MULTIMODE LOBE
- Publication number 20120145097
- Publication date Jun 14, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
INTERNAL COMBUSTION ENGINE
- Publication number 20120048244
- Publication date Mar 1, 2012
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Alan W. Hayman
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
ENGINE ASSEMBLY WITH INTEGRATED EXHAUST MANIFOLD
- Publication number 20120006287
- Publication date Jan 12, 2012
- GM Global Technology Operations, Inc.
- Alan W. Hayman
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Robert S. McAlpine

Person

Patents Grantslast 30 patents

Pneumatic resonator and accumulator system for control of turbochar...

Dedicated exhaust gas recirculation control systems and methods

Cam follower assembly and method of manufacturing thereof

Engine control systems and methods for nitrogen oxide reduction

Variable-speed supercharger for highly diluted internal combustion...

Exhaust valve and an engine assembly including the exhaust valve ha...

High damping low force hydraulic strut tensioner

Engine with a turbocharger cooling module

Dedicated EGR engine with dynamic load control

Camshaft assembly for an internal combustion engine

Fuel consumption based cylinder activation and deactivation control...

Engine inlet for EGR-air flow distribution

Engine assembly including crankshaft for V8 arrangement

Crankshaft for variable displacement internal combustion engine

Reduced torque variation for engines with active fuel management

Split/dual plane integrated exhaust manifold for dual scroll turbo...

Engine assembly with variable valve displacement on one cylinder ba...

Targeted cooling with individualized feeding ports to cylinders

Dual path SAIR for dual plane integrated exhaust manifolds

Valvetrain for overhead valve engine

Internal combustion engine

Cylinder deactivation to reduce fuel enrichment after fuel cutoff m...

Engine assembly including camshaft with independent cam phasing

Engine assembly including camshaft with multimode lobe

Engine rocker arm

Camshaft damping mechanism and method of assembly

Dry sump oil tank assembly for a vehicle

High performance overhead valvetrain assembly

Hydraulically lashed end pivot rocker arm

Patents Applicationslast 30 patents

Dedicated Exhaust Gas Recirculation Control Systems and Methods

CAM FOLLOWER ASSEMBLY AND METHOD OF MANUFACTURING THEREOF

THREE CYLINDER HEAD FOR A DEDICATED EGR INTERNAL COMBUSTION ENGINE...

VARIABLE-SPEED SUPERCHARGER FOR HIGHLY DILUTED INTERNAL COMBUSTION...

ENGINE CONTROL SYSTEMS AND METHODS FOR NITROGEN OXIDE REDUCTION

HIGH DAMPING LOW FORCE HYDRAULIC STRUT TENSIONER

ENGINE WITH A TURBOCHARGER COOLING MODULE

EXHAUST VALVE AND AN ENGINE ASSEMBLY INCLUDING THE EXHAUST VALVE HA...

DEDICATED EGR ENGINE WITH DYNAMIC LOAD CONTROL

CAMSHAFT ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE

FUEL CONSUMPTION BASED CYLINDER ACTIVATION AND DEACTIVATION CONTROL...

Split/Dual Plane Integrated Exhaust Manifold For Dual Scroll Turbo...

Targeted Cooling With Individualized Feeding Ports To Cylinders

Engine Inlet For EGR-Air Flow Distribution

Dedicated EGR Engine with Dynamic Load Control

Reduced Torque Variation for Engines with Active Fuel Management

CRANKSHAFT FOR VARIABLE DISPLACEMENT INTERNAL COMBUSTION ENGINE

DUAL PATH SAIR FOR DUAL PLANE INTEGRATED EXHAUST MANIFOLDS

ENGINE ASSEMBLY WITH VARIABLE VALVE DISPLACEMENT ON ONE CYLINDER BA...

INLET MANIFOLD WITH DUAL PORT EGR

CENTRIFUGAL PUMP

PUMP IMPELLER

CRANKSHAFT FOR AN INTERNAL COMBUSTION ENGINE

Internal Combustion Engine

ENGINE ASSEMBLY INCLUDING CRANKSHAFT FOR V4 ARRANGEMENT

ENGINE ASSEMBLY INCLUDING CRANKSHAFT FOR V8 ARRANGEMENT

ENGINE ASSEMBLY INCLUDING CAMSHAFT WITH INDEPENDENT CAM PHASING

ENGINE ASSEMBLY INCLUDING CAMSHAFT WITH MULTIMODE LOBE

INTERNAL COMBUSTION ENGINE

ENGINE ASSEMBLY WITH INTEGRATED EXHAUST MANIFOLD