Charles E Hunter

US Patent:

48830321, Nov 28, 1989

Filed:

Jan 23, 1989

Appl. No.:

7/299853

Inventors:

Charles E. Hunter - Belleville MI
Harry A. Cikanek - Northville MI

Assignee:

Ford Motor Company - Dearborn MI

International Classification:

F02B 300

US Classification:

123276

Abstract:

A method using concurrently and simultaneously certain control factors for in-cylinder combustion, at least two of such factors being at levels never tried before by the prior art. The combination of control factors comprises: (i) high pressure charging of supply air for enhanced excess oxygen; (ii) advanced techniques for improved in-cylinder mixing of fuel and air (i. e. , high swirl, reentraining piston bowl configuration, high compression ratio); (iii) high pressure injection of diesel fuel at levels of 16-22. times. 10. sup. 3 psi; (iv) smaller fuel nozzle ports for creating finer droplet size; (v) retardation of fuel injection from TDC by 2. degree. -5. degree. ; and (vi) limitation of the ingress of lubrication oil into the combustion chamber by use of noncompressed cylinder sleeves to enhance piston to bore concentricity and preferably by other augmenting limits.

US Patent:

55529925, Sep 3, 1996

Filed:

Nov 1, 1994

Appl. No.:

8/332951

Inventors:

Charles R. Hunter - Sterling Heights MI

International Classification:

G06F 1900
G06T 1700

US Classification:

36446825

Abstract:

The surface of a clay model is laser scanned to obtain a set of laser scan data. The scan data provides X, Y and Z values of the part. The raw scan data is then preferably edited to smooth, filter, and pre-process it for further use. A first algorithm implemented at an engineering workstation is used to create a first set of equations which represent a three-dimensional surface of the model from the edited set of scan data. A second algorithm utilizes known wire frame data for the part model to compute a second set of mathematical equations. The first set of equations and the second set of equations represent surface(s) and characteristics of the model in a recorded format usable by CAD-based systems to facilitate part design and tool construction. A third algorithm generates an NC tool path data from the first and second set of equations. The NC tool path data may be utilized at a machining center to cut a production part mold, or a direct reproduction of the model.

US Patent:

60730560, Jun 6, 2000

Filed:

Apr 8, 1997

Appl. No.:

8/827721

Inventors:

David E. Gawronski - Macomb MI
Charles R. Hunter - Sterling Heights MI

International Classification:

G06F 1900

US Classification:

700 98

Abstract:

Method and system are provided for building a data model of a physical part in a data format useful for reproduction of the part. The system preferably includes a Moire interferometry system including a camera mounted on a portable coordinate measuring system (CMM) to obtain high density data scans in the form of 3-D point data from different positions and orientations of the interferometry system relative to the part. The CMM provides position data to enable an engineering workstation to convert the data scans obtained in multiple local coordinate systems into a single global coordinate system. The engineering workstation then integrates the data scans in the global coordinate system and joins the point data to form a polygonal structure corresponding to multiple continuous surfaces of the physical part. From this data, a tool path can be generated to cut a reproduction of the part or a mold for molding the reproduction. Alternatively, a stereo-lithography or FDM file can be generated for use in a fused deposition molding (FDM) system to form a mold layer-by-layer.