Hardo Barths

from Bloomfield Hills, MI
Age ~58

Hardo Barths Phones & Addresses

  • 2989 Little Ln, Bloomfield Hills, MI 48302 (248) 874-1488
  • 4085 Willoway Place Dr, Bloomfield Hills, MI 48302
  • Ferndale, MI
  • Oakland, MI
  • Harrison Township, MI
  • Macomb, MI
  • Royal Oak, MI
  • Bloomfld Hls, MI
  • Sterling Heights, MI
  • 2989 Little Ln, Bloomfield, MI 48302 (248) 321-8709


Position: Professional/Technical


Degree: Associate degree or higher



Hardo Barths Photo 1

Staff Project Engineer

View page
Warren, MI
Mechanical Or Industrial Engineering
General Motors
Staff Project Engineer

General Motors May 2005 - Nov 2008
Plce V6 Engines

General Motors Mar 2000 - May 2005
Staff Research Engineer
University of California, Davis 1991 - 1992
Rwth Aachen University
Doctorates, Mechanical Engineering
Hardo Barths Photo 2

Hardo Barths

View page


Us Patents

Engine Assembly And Method Of Making

View page
US Patent:
8544267, Oct 1, 2013
May 17, 2011
Appl. No.:
Curt R. Danielewicz - Macomb MI, US
Brian J. Edwards - Macomb MI, US
Hardo Barths - Bloomfield Hills MI, US
GM Global Technology Operations LLC - Detroit MI
International Classification:
F02B 23/00
F01N 1/00
F01N 13/08
F16L 39/00
F16L 41/00
F16L 45/00
F16L 51/00
F02F 11/00
B21K 3/00
B23P 6/00
F01D 1/02
F04D 29/44
F04D 29/54
US Classification:
60602, 60323, 28513311, 277592, 277593, 2988801, 29888011, 29888021, 415203
An engine assembly comprising a cylinder head, turbocharger in fluid communication with the cylinder head and exhaust conduit in fluid communication with the turbocharger and method of making the assembly using a single human assembler includes: mounting the turbine to the cylinder head; using a first assembly aid to form a slidable joint between the exhaust conduit and head; using a second assembly aid to form a movable joint between the turbine and exhaust conduit and align the turbine outlet flange and exhaust conduit inlet flange; using a third assembly aid to pilotingly engage the flanges; disposing a clamp about the turbine outlet flange and the exhaust conduit inlet flange; tightening the second assembly aid sufficiently to form an immovable joint; tightening the clamp to form a sealed joint between the flanges; and tightening the first assembly aid to form a fixed joint.

Valve And Fueling Strategy For Operating A Controlled Auto-Ignition Four-Stroke Internal Combustion Engine

View page
US Patent:
20060016423, Jan 26, 2006
Jul 26, 2004
Appl. No.:
Tang-Wei Kuo - Troy MI, US
Barry Brown - Lake Orion MI, US
Paul Najt - Bloomfield Hills MI, US
Thompson Sloane - Oxford MI, US
Hardo Barths - Royal Oak MI, US
International Classification:
F02B 3/00
US Classification:
Part load operating point for a controlled auto-ignition four-stroke internal combustion engine is reduced without compromising combustion stability through negative valve overlap control operative to retain and compress combusted gases within the combustion chamber into which fuel is introduced. Combustion chamber pressures and temperatures are increased as engine load decreases. Various split-injection fuel controls are implemented during low and intermediate part load operation whereas a single-injection fuel control is implemented during high part load operation. Split-injections are characterized by lean fuel/air ratios and single-injections are characterized by either lean or stoichiometric fuel/air ratios. Controlled autoignition is thereby enabled through an extended range of engine loads while maintaining acceptable combustion stability and emissions.
Hardo Barths from Bloomfield Hills, MI, age ~58 Get Report