Sentences with phrase «volumetric efficiency at»

Variable Induction Systems to Improve Volumetric Efficiency at Low and / or Medium Engine Speeds

To get the best volumetric efficiency at a particular operating point, one must tune the valve events to be in - sync with these pulses.

The engine includes a variable induction control system to improve volumetric efficiency at low and middle speed ranges, while an efficient belt layout reduces maintenance requirements and aids fuel efficiency.

Not exact matches

The engine «struggling» to intake air at high engine speed is measured as «volumetric efficiency».

As it states in the body, this correlates with volumetric efficiency (how completely a cylinder fills with air on the intake stroke) at WOT.

VTEC (Variable Valve Timing & Lift Electronic Control) is a system developed by Honda which was said to improve the volumetric efficiency of a four - stroke internal combustion engine, resulting in higher performance at high RPM, and lower fuel consumption at low RPM.

Unfortunately, the frequency, magnitude and timing of these pulses varies with speed, so the volumetric efficiency of an engine with fixed valve timing will only be optimum at one speed.

Implementing an optimised fluid - dynamic intake system, it is characterised by particularly high volumetric efficiency across the entire operating range, which translates into brilliant performance and cost - effective running at the same time.

In passenger cars at low partial loads, a higher swirl level (partial closing of the filling port in a four - valve cylinder head) can lead to a better particle / NOx trade - off, whereby consumption as well as CO emissions increase because of the deterioration in volumetric efficiency [1].

Maximum power available from the volumetric expander is as much as 32kW (43hp), and maximum thermal efficiency of the unit is 13 % at 23kW (30hp).