Meaning of throttleless | Babel Free

Definitions

Not involving a throttle; unthrottled.

not-comparable

Examples

“The next logical step in valve timing flexibility and control⟳ are fully variable mechanical systems like⟳ the BMW Valvetronic system [7], which gives increased flexibility over valve timing, duration and allows, for the first time, the ability to achieve⟳ throttleless load⟳ control⟳ with a mechanical system. Shown in Figure⟳ 14, is an example of an early inlet valve closing strategy that allows throttleless load⟳ control⟳. […] Throttleless operation has also been shown by Law et al [5] by replacing fresh charge with trapped exhaust⟳ gasses and achieving stable combustion with over 70% exhaust⟳ gas by two valve strategies, of either early exhaust⟳ valve closing and late intake valve opening or a strategy of double⟳ exhaust⟳ valve opening.”

“Engine performance has been mapped at shaft speeds from 2000 to 12,000 RPM, at altitudes from sea level up to 20,000 ft. and for a range of inlet pressures representative of throttling and supercharging. Mixture strengths were varied to evaluate⟳ the potential range of throttleless operation for minimizing fuel consumption.”

“In SI engine application, an EIVC strategy offers the possibility of throttleless operation throughout the engine speed⟳ and load⟳ range, and considerable improvement in fuel economy can be achieved by eliminating or reducing throttle [12].”

CEFR level