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Switching valve for controlling hydraulic fluid stream and connecting rod for combustion engine with variable compression with switching valve

一种液压流体、转换阀的技术，应用在转换阀领域，能够解决昂贵、转换阀结构耗费成本等问题，达到防止液压短路的效果

Active Publication Date: 2019-03-05
ECO HLDG 1 GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known switching valve constructions are considered complex and therefore cost-intensive

Method used

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  • Switching valve for controlling hydraulic fluid stream and connecting rod for combustion engine with variable compression with switching valve
  • Switching valve for controlling hydraulic fluid stream and connecting rod for combustion engine with variable compression with switching valve
  • Switching valve for controlling hydraulic fluid stream and connecting rod for combustion engine with variable compression with switching valve

Examples

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Embodiment Construction

[0052] Components of the same type or of the same type are identified with the same reference numerals in the figures. The drawings show examples only and are not to be construed as being limited thereto.

[0053] Figure 2 to Figure 12 A first exemplary embodiment of a switchover valve 11 according to the invention, or individual components of the switchover valve 11 , which is used in particular in the figure 1 A known variable compression ratio connecting rod 1 for an internal combustion engine is shown in .

[0054] exist figure 1 The connecting rod 1 shown in has a connecting rod shaft 34 and an adjustable eccentric adjustment device 6 at least partially arranged in the small end bearing hole 2 of the connecting rod, and the connecting rod shaft includes a connecting rod body 29 and a connecting rod Cover 30 , the eccentric adjustment device 6 has the eccentric 10 . The eccentric adjustment device 6 is used to adjust the effective connecting rod length. The distance ...

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PUM

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Abstract

A switch valve for controlling a hydraulic fluid flow, the switch valve comprising a tapping element that is arranged in a valve housing, wherein the tapping element is displaceable into a first switching position or a second switching position and interlockable by a spring loaded interlocking element in the first switching position or the second switching position, wherein a first hydraulic connection is connected with a relief connection in the first switching position and a second hydraulic connection is connected with the relief connection in the second switching position, wherein a switching travel of the tapping element is limited, wherein the interlocking element is at least partially arranged in a recess of the tapping element, wherein the valve housing includes a first groove thatis oriented in an axial direction of the valve housing and limited in the axial direction.

Description

technical field [0001] The invention relates to a switching valve for controlling the flow of a hydraulic fluid, in particular for a connecting rod of an internal combustion engine with a variable compression ratio, the connecting rod having an eccentric for adjusting the effective connecting rod length Adjustment device. The invention also relates to a connecting rod with such a switching valve. Background technique [0002] In internal combustion engines, a high compression ratio has a positive effect on the efficiency of the internal combustion engine. The compression ratio is generally understood to be the ratio of the entire cylinder volume before compression to the cylinder volume remaining after compression. However, in internal combustion engines having a fixed compression ratio with external ignition, especially Otto engines, it is only permissible to select a compression ratio so high that so-called "knocking" of the internal combustion engine is avoided during f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16C7/02
CPCF15B13/02F16C7/02F01B31/14F02B75/045F16C7/06F16C23/10F16C2360/22F16K11/0704
Inventor 大卫·胡伯克里斯蒂安·雍亚历山大·穆德拉迪特玛·舒尔茨
Owner ECO HLDG 1 GMBH
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