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Device for releasing, in a pulsed manner, an amount of fluid that can be stored in an accumulator housing

A memory and fluid quantity technology, applied in the direction of fluid pressure actuation device, transmission control, fluid pressure actuation system components, etc., can solve the problems of expensive, inconspicuous structure space, etc., and achieve low commutation loss and reliable device function , Simplify the effect of simple replacement

Active Publication Date: 2012-07-11
HYDAC TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The construction of the known devices is at least partially expensive and requires not insignificant construction space

Method used

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  • Device for releasing, in a pulsed manner, an amount of fluid that can be stored in an accumulator housing
  • Device for releasing, in a pulsed manner, an amount of fluid that can be stored in an accumulator housing
  • Device for releasing, in a pulsed manner, an amount of fluid that can be stored in an accumulator housing

Examples

Experimental program
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Embodiment Construction

[0023] exist figure 1 The device 1 for pulse-like release of a fluid quantity 3 that can be stored in a reservoir housing 2 is shown in longitudinal section. The device 1 is used to store a loaded working medium for a hydraulic system, such as, for example, to store and pulse out hydraulic oil for a shift cylinder of an automatic transmission of a passenger car. The cylindrical accumulator housing 2 has a first energy store 4 which is designed as a cylindrical compression spring. The first accumulator 4 is used to load a piston 5 with a pressure sufficient to move the piston 5 from the locked position (see figure 2 ) to the position where the fluid volume 3 is ejected in pulses from the accumulator housing 2 . Fluid volume 3 in as figure 2 In the piston position shown, fluid delivery means 20 known per se, such as, for example, rotary pumps of the vane or gear pump type, are inserted under pressure into the accumulator housing 2 .

[0024] The valve device 6 regulates th...

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Abstract

The invention relates to a device for releasing in a pulsed manner a fluid amount (3) that can be stored in an accumulator housing (2), in particular for carrying out a start-stop function in automatic transmissions, comprising a piston (5) supported against a first energy store (4), which piston can be moved inside the accumulator housing (2) and together with said housing (2) limits the fluid amount (3) that can be accommodated, wherein the piston (5) is held by a valve unit (6) at least in a position equivalent to the maximum volume of the fluid amount (3) in the accumulator housing (2) in that a fluid-conducting connection (7) between the accumulator housing (2) and a load (8) is blocked by the valve unit (6), said device for releasing in a pulsed manner the fluid amount (3) that can be stored in the accumulator housing (2) being characterized in that the valve unit (6); is made up of at least one seat valve (9).

Description

technical field [0001] The invention relates to a device for pulse-like release of a fluid quantity that can be stored in an accumulator housing, in particular for implementing a start-stop function in an automatic transmission, the device comprising a support against a first accumulator a piston that is movably inside the reservoir housing and together with the reservoir housing defines a containable volume of fluid, wherein the piston is held by a valve device at least in a position corresponding to the maximum volume of the fluid volume in the storage housing , in which the fluid-conducting connection between the accumulator housing and the load is blocked by the valve device. Background technique [0002] Provision is made not only to reduce the fuel consumption of the internal combustion engine of the motor vehicle but also to reduce the emissions of pollutants from the internal combustion engine of the motor vehicle, the internal combustion engine being switched off in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/00F15B1/22
CPCY02E60/15F15B2201/40F16H61/0021F15B1/24F15B2201/21F16H2061/0034F15B2201/31F16H2312/14F15B21/065Y02E60/16Y10T74/20024F16H61/0025
Inventor N·朗格N·韦伯
Owner HYDAC TECH GMBH
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