A camless or free-valve piston engine is an engine that has poppet valves operated by means of electromagnetic, hydraulic, or pneumatic [1] actuators instead of conventional cams. Actuators …

2025年1月28日 · While most car engines have a camshaft, there are some cars with a camless engine. But what does this mean, and what benefits does this configuration offer?

2016年2月16日 · So why aren’t we all driving camless engines? There are a few reasons. The advantages of camless engines to camshaft engines are analogous to the advantages of …

Camless refers to a system or engine that eliminates the need for a mechanical connection between the camshaft and valve mechanism, instead using exhaust gas pressure or other …

2021年9月9日 · The goal is a flexible valve-control system that improves performance while reducing emissions. Sometimes called a “camless” system, this control allows engine control …

发动机无凸轮轴气门驱动技术具有灵活改变配气参数、较强的发动机动力、较低的燃油消耗和排放等优点，受到诸多汽车公司及科研单位重视。 在分析发动机无凸轮轴气门驱动技术现状，有 …

1996年2月1日 · An experimental engine with an electrohydraulic camless valvetrain, capable of total valve motion control, was built at Ford Research Laboratory. The system uses neither …

A camless (or, free valve engine) uses electromagnetic, hydraulic, or pneumatic actuators to open the poppet valves instead. Actuators can be used to both open and close the valves, or an …

2019年1月1日 · This paper presents an innovative application of an electromagnetic actuator for a future camless engine valvetrain. The actuators are designed for small gasoline engine. The …

2019年9月15日 · Camless technology is capturing the future of internal combustion engines. It has been known to man that if valves could be controlled independently in an Internal …