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position actuator

A technology of actuator and main piston, applied in fluid pressure actuating device, transmission device control, servo motor, etc., can solve the problem of insufficient force, and achieve the effect of easy assembly and space saving

Active Publication Date: 2020-10-09
KONGSBERG AUTOMOTIVE AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if both sides of the actuator are fully pressurized, the force is not high enough

Method used

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Experimental program
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Embodiment Construction

[0014] Such as Figure 1 to Figure 4 As disclosed in, an embodiment of the position actuator 10 according to the present invention is shown as being used to move various components of a vehicle powertrain (not shown), such as gears and clutches located in an automatic transmission or an automatic manual transmission. Pneumatic actuator. in figure 1 In the illustrated embodiment, the position actuator 10 is used to move the shift rail 11 to engage and disengage at least one gear (gear) in the transmission. It should be understood that the position actuator 10 may be used in other embodiments of the vehicle other than the powertrain. It should also be understood that the position actuator 10 may be a two-position actuator or a three-position actuator.

[0015] reference Figure 2-4 , The position actuator 10 includes an axially extending cylinder housing 12. The cylinder housing 12 is generally cylindrical and has a substantially circular cross section. The cylinder housing 12 ...

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Abstract

The position actuator comprises a cylinder housing, a movable main piston, a piston rod and a push ring, the cylinder housing forms a fluid chamber having a first part and a second part, the movable main piston is arranged in the second part, and the piston rod is fixed Attached to the main piston and extending through one end of the cylinder housing, a push ring is disposed in the first portion and is axially movable relative to the main piston. The position actuator also includes a first port extending through the cylinder housing to allow fluid communication between the main piston and one end of the cylinder housing and a second port extending through the cylinder housing , thereby allowing fluid communication between the main piston and the other end of the cylinder housing with the second portion, wherein at least one of the first and second portions is pressurized to move the main piston to the first position and the second position at least one of the

Description

[0001] 1. Technical Field [0002] The present invention relates generally to position actuators for powertrains, and more specifically to position actuators for vehicle powertrains. [0003] 2. Background technology [0004] It is known to provide a pneumatically actuated position actuator for actuating components in a powertrain such as gears and clutches in a transmission. An example of such a position actuator is disclosed in U.S. Patent Application Publication No. 2003 / 0136254 by Hirano et al. In this patent publication, the position actuator includes a housing, a movable inner piston, and a piston rod. The movable inner piston is disposed in a chamber in the housing, and the piston rod axially extends from the piston through one end of the housing. For this position actuator, the partition wall divides the housing into two pressure chambers. In addition, the position actuator has a relatively small force from its end position to its middle position. If it is used as a shift a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/12F16H61/30
CPCF16H61/30F15B11/123F15B2211/7053F15B2211/7055
Inventor K·T·约斯纳B·维斯特加德S·比约加德
Owner KONGSBERG AUTOMOTIVE AS