Richard J Fotsch

US Patent:

D671959, Dec 4, 2012

Filed:

Oct 21, 2011

Appl. No.:

29/404497

Inventors:

John Burey - Sheboygan WI, US
Mark Huibregtse - Cleveland WI, US
Ronald V. Post - Manitowoc WI, US
Benji J. Bink - St. Cloud WI, US
Daniel J. Luhman - Kohler WI, US
Richard J. Fotsch - Sheboygan Falls WI, US

Assignee:

Kohler Co. - Kohler WI

International Classification:

1501

US Classification:

D15 5

US Patent:

6349688, Feb 26, 2002

Filed:

Feb 18, 2000

Appl. No.:

09/507070

Inventors:

Gary J. Gracyalny - Milwaukee WI
Richard J. Fotsch - Elm Grove WI
David Procknow - Elm Grove WI
Art Poehlman - West Bend WI
Scott A. Funke - New Berlin WI

Assignee:

Briggs Stratton Corporation - Milwaukee WI

International Classification:

F01L 118

US Classification:

123 9039, 123 9016, 123 9017

Abstract:

An overhead valve engine including a cylinder bore having an outer end; and a crankshaft assembly including a substantially straight crankshaft, a substantially cylindrical journal eccentrically mounted on the crankshaft, a one-piece connecting rod rotatably mounted on the journal, and a counterweight mounted on the crankshaft. The engine also includes a cam shaft having at least one cam surface and an axis inward of the outer end of the cylinder bore; two valves having opened and closed positions; two valve stems, each valve stem being attached to a valve; and two generally L-shaped and pivotably mounted valve operating levers, each lever including a first lever arm having a cam follower in contact with the cam surface, a pivot axis about which the lever pivots, and a valve arm in contact with a valve stem, where movement of the lever caused by the cam surface causes the lever to pivot and the valve arm to depress the valve stem and thus open the valve.

US Patent:

20210348548, Nov 11, 2021

Filed:

May 26, 2021

Appl. No.:

17/330903

Inventors:

- Sheboygan Falls WI, US
Richard J. Fotsch - Sheboygan Falls WI, US
C. Thomas Sylke - Whitefish Bay WI, US

Assignee:

Bright Acceleration Technologies LLC - Sheboygan Falls WI

International Classification:

F02B 37/007
F02B 27/02
F02D 9/10
F02D 31/00
F02D 41/00
F02B 37/22

Abstract:

Cross-port air flow that improves engine fuel economy and reduces pumping losses during part-throttle operation can be implemented in various types of internal combustion engine systems using ports that interconnect the intake ports of different cylinders, thus allowing different cylinders to share combustion air. Cross-port air flow is commenced during part-throttle engine operation to disrupt the primary combustion air flow from each throttle to its associated cylinder, which reduces charge density and engine power. The engine compensates for the reduced power by incrementally opening the throttles, thus increasing the primary combustion air flow, reducing pumping losses and improving fuel economy.

US Patent:

20200400063, Dec 24, 2020

Filed:

Jun 29, 2020

Appl. No.:

16/915366

Inventors:

- Sheboygan Falls WI, US
Richard J. Fotsch - Sheboygan Falls WI, US
C. Thomas Sylke - Whitefish Bay WI, US

Assignee:

Bright Acceleration Technologies LLC - Sheboygan Falls WI

International Classification:

F02B 37/007
F02B 27/02
F02D 9/10
F02D 31/00
F02D 41/00
F02B 37/22

Abstract:

Cross-port air flow that improves engine fuel economy and reduces pumping losses during part-throttle operation can be implemented in various types of internal combustion engine systems using ports that interconnect the intake ports of different cylinders, thus allowing different cylinders to share combustion air. Cross-port air flow is commenced during part-throttle engine operation to disrupt the primary combustion air flow from each throttle to its associated cylinder, which reduces charge density and engine power. The engine compensates for the reduced power by incrementally opening the throttles, thus increasing the primary combustion air flow, reducing pumping losses and improving fuel economy.

US Patent:

20200072122, Mar 5, 2020

Filed:

Sep 10, 2019

Appl. No.:

16/565720

Inventors:

- Sheboygan Falls WI, US
Richard J. Fotsch - Sheboygan Falls WI, US
C. Thomas Sylke - Whitefish Bay WI, US

Assignee:

Bright Acceleration Technologies LLC - Sheboygan Falls WI

International Classification:

F02B 37/007
F02D 9/10
F02D 41/00
F02D 11/10
F02B 37/22
F02D 9/02
F02B 37/00

Abstract:

Synergistic induction and turbocharging includes the use of one or more throttles in close proximity to each cylinder intake valve to control air flow in each intake port delivering air to combustion cylinders in an internal combustion engine system. A turbocharger may also be affixed in close proximity to each cylinder exhaust valve to enable a synergistic combination of hyper-filling cylinders with combustion air and immediate harvesting of exhaust gas by adjacent turbochargers. In some implementations the turbochargers may be low-inertia turbochargers. The combination of individual throttles per intake port and a turbocharger in close proximity to each cylinder enables faster ramp-up of an engine in the early stages of acceleration. Various implementations thus provide improved fuel economy and improved engine performance in tandem, instead of one at the expense of the other.

US Patent:

20190277186, Sep 12, 2019

Filed:

May 23, 2019

Appl. No.:

16/421134

Inventors:

- Sheboygan Falls WI, US
Richard J. Fotsch - Sheboygan Falls WI, US
C. Thomas Sylke - Whitefish Bay WI, US

Assignee:

Bright Acceleration Technologies LLC - Sheboygan Falls WI

International Classification:

F02B 37/007
F02B 27/02
F02D 9/10
F02D 31/00
F02D 41/00
F02B 37/22

Abstract:

Cross-port air flow that improves engine fuel economy and reduces pumping losses during part-throttle operation can be implemented in various types of internal combustion engine systems using ports that interconnect the intake ports of different cylinders, thus allowing different cylinders to share combustion air. Cross-port air flow is commenced during part-throttle engine operation to disrupt the primary combustion air flow from each throttle to its associated cylinder, which reduces charge density and engine power. The engine compensates for the reduced power by incrementally opening the throttles, thus increasing the primary combustion air flow, reducing pumping losses and improving fuel economy.

US Patent:

20190032547, Jan 31, 2019

Filed:

Sep 27, 2018

Appl. No.:

16/144975

Inventors:

- Sheboygan Falls WI, US
Richard J. Fotsch - Sheboygan Falls WI, US
C. Thomas Sylke - Whitefish Bay WI, US

International Classification:

F02B 37/007
F02D 9/10
F02D 41/00
F02B 37/00

Abstract:

Synergistic induction and turbocharging includes the use of one or more throttles in close proximity to each cylinder intake valve to control air flow in each intake port delivering air to combustion cylinders in an internal combustion engine system. A turbocharger may also be affixed in close proximity to each cylinder exhaust valve to enable a synergistic combination of hyper-filling cylinders with combustion air and immediate harvesting of exhaust gas by adjacent turbochargers. In some implementations the turbochargers may be low-inertia turbochargers. The combination of individual throttles per intake port and a turbocharger in close proximity to each cylinder enables faster ramp-up of an engine in the early stages of acceleration. Various implementations thus provide improved fuel economy and improved engine performance in tandem, instead of one at the expense of the other.

US Patent:

20190032584, Jan 31, 2019

Filed:

Sep 27, 2018

Appl. No.:

16/144787

Inventors:

- Sheboygan Falls WI, US
Richard J. Fotsch - Sheboygan Falls WI, US
C. Thomas Sylke - Whitefish Bay WI, US

International Classification:

F02D 41/00
F02B 37/007
F02D 41/08
F02B 37/00
F02B 37/22
F02D 9/02
F02D 11/10

Abstract:

Synergistic induction and turbocharging includes the use of one or more throttles in close proximity to each cylinder intake valve to control air flow in each intake port delivering air to combustion cylinders in an internal combustion engine system. A turbocharger may also be affixed in close proximity to each cylinder exhaust valve to enable a synergistic combination of hyper-filling cylinders with combustion air and immediate harvesting of exhaust gas by adjacent turbochargers. In some implementations the turbochargers may be low-inertia turbochargers. The combination of individual throttles per intake port and a turbocharger in close proximity to each cylinder enables faster ramp-up of an engine in the early stages of acceleration. Various implementations thus provide improved fuel economy and improved engine performance in tandem, instead of one at the expense of the other.