Inventor

ROTH DAVID B

US20 patents

⚠️ This page may combine multiple inventors who share the name “ROTH DAVID B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ROTH DAVID B

BORGWARNER INC

System and method of providing hydraulic pressure for mechanical work from an engine lubricating system

Condensing EGR-mixer system

Valve event reduction through operation of a fast-acting camshaft phaser

Viscous coolant heater with variable coolant pump drive

Method of providing hydraulic pressure for mechanical work from an engine lubricating system

Turbocharger with integrated venturi mixer and EGR valve system

Variable lift and duration device for poppet valves

Directly communicated turbocharger

Controlling exhaust gas flow to the EGR system through a scavenger valve

Variable compression ratio connecting rod system with rotary actuator

ROTH DAVID B

Controlling exhaust gas flow divided between turbocharging and exhaust gas recirculating

Viscous coolant heater with variable coolant pump drive

Knock-responsive adjustment of an external EGR mixture

Directly communicated turbocharger

CHRYSLER CORP

Engine cooling system with thermostat coolant flow control between head and block

Direct injection spark ignition engine

Engine cooling system and thermostat with improved bypass control

SHUTTY JOHN

Controlling exhaust gas recirculation in a turbocharged engine system

Boost assist system

UNIV NEW YORK

Compositions, kits, and methods for stimulation of homologous recombination