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Variable valve actuator

An actuator and actuation technology, applied to non-mechanical actuated valves, engine components, machines/engines, etc., can solve problems such as uncontrollable valve lift, achieve simple and reliable control, increase movement speed, and valve lift variable effect

Inactive Publication Date: 2013-11-27
NINGBO HOYEA MACHINERY MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It also cannot control the valve lift

Method used

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  • Variable valve actuator
  • Variable valve actuator
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Embodiment Construction

[0087] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0088] see figure 1 and image 3 , the embodiment of the present invention includes:

[0089] An actuator comprising: a housing 200 in which, along a longitudinal axis 110 and in a second direction (direction from top to bottom in the Figures), there is an activation port 260, a cavity 250, The first control hole 271, the first upper port 211, the second upper port 212, the actuating cylinder 230, the fluid bypass 240, the second lower port 222, the first lower port 221, the second control hole 272; The first spring system (not labeled) in the chamber 250, the first piston rod 410 arranged in the first control hole 271, the actuating piston 300...

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PUM

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Abstract

The invention discloses an actuator, whichis divided into a hydraulic control loop portion and a spring mechanical system portion and comprises a shell, an actuating cylinder, an actuating piston, a first fluid space, a second fluid space, a first piston rod, a second piston rod, a fluid bypass, a first spring system, a second spring system, a first flowing mechanism and a second flowing system. The shell is provided with an upper port and a lower port, the actuating cylinder is arranged in the shell, the actuating piston in the cylinder can move along a longitudinal axis, the first piston rod is connected to a first surface of the actuating piston, the second piston rod is connected to a second surface of the actuating piston, the first spring system is connected with the first piston rod and eccentrically presses the actuating piston along a second direction, and the second spring system eccentrically presses the actuating piston along a first direction. The invention further discloses two other actuators. The actuator has the advantages that the lift of a valve is variable, energy consumption is low, response speed is fast, valve crash speed is slow, control is simple and reliable, and the like.

Description

technical field [0001] The present invention relates generally to actuators and related methods and systems for controlling the same, and in particular, to actuators that provide independent lift (or stroke or travel) and timing control with minimal energy consumption. Background technique [0002] Various systems are available to effectively control the timing and lift of engine valves to improve engine performance, fuel economy, injection, and other characteristics. Depending on the device or actuator controlled, these systems can be classified into mechanical, electrohydraulic, and electromechanical (sometimes called electromagnetic) forms. According to the scope of control, it can be divided into variable valve lift and timing, variable valve timing and variable valve lift. They can also be divided into cam-based or indirect acting and camless or direct acting. [0003] In the case of a cammed system, the conventional engine cam system is maintained and slightly modifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/34F01L9/02F01L9/10
Inventor 邓强泉娄征文韶
Owner NINGBO HOYEA MACHINERY MFG