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Control plunger latch with separate control piston for length-adjustable connecting rod

A technology for controlling pistons and connecting rods, applied to connecting rods, engine control, valve details, etc., to achieve the effects of reducing consumption, reducing coaxiality requirements, and reducing cutting volume

Inactive Publication Date: 2020-09-15
IWIS MOTORSYSTEME GMBH & CO KG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it is also necessary to ensure the low-cost manufacture and installation of the components of the piston engine

Method used

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  • Control plunger latch with separate control piston for length-adjustable connecting rod
  • Control plunger latch with separate control piston for length-adjustable connecting rod
  • Control plunger latch with separate control piston for length-adjustable connecting rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] exist figure 1 The length-adjustable link 1 shown in the figure comprises two link parts 2, 3 which are telescopically movable relative to each other. exist figure 1 In the illustration of the length-adjustable connecting rod 1 , the lower connecting rod part 2 arranged below has a large connecting rod eye 4 with which the length-adjustable connecting rod 1 is supported (not shown) on the crankshaft of a piston engine. For this purpose, a bearing shell 5 is also arranged on the lower connecting rod part 2 , which together with the likewise bearing-shell-shaped lower region of the lower connecting rod part 2 forms a large connecting rod eye 4 . Bearing shell 5 and lower connecting rod part 2 are connected to one another by means of connecting rod screws 43 . The upper connecting rod part 3 has a connecting rod head 6 with a small connecting rod eye 7 which accommodates a (not shown) piston pin of a reciprocating piston in a piston engine.

[0039] as in figure 2 It...

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PUM

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Abstract

The invention relates to a control plunger latch with a separate control piston for a length-adjustable connecting rod. For a length-adjustable connecting rod for a piston engine, the connecting rod has a hydraulic control device for adjusting the effective length of the length-adjustable connecting rod. Wherein the hydraulic control device has a hydraulic control valve having a control cylinder,a control plunger and at least one discharge valve which can be actuated by the control plunger, and wherein the control plunger comprises a control piston which is guided so as to be displaceable inthe control cylinder and which can be acted upon by a hydraulic control pressure, and a plunger tappet. Here, the control piston and the plunger tappet are designed as separate components, and the plunger tappet is designed with a piston receptacle, the control piston being arranged in a clearance-fit manner on the piston receptacle of the plunger tappet. The invention further relates to a controlslide for such a hydraulic control valve for a length-adjustable connecting rod, and to a piston engine having a length-adjustable connecting rod.

Description

technical field [0001] The invention relates to a length-adjustable connecting rod for a piston engine, wherein the connecting rod has a hydraulic control device for setting the effective length of the length-adjustable connecting rod, and the control device has a hydraulic control valve , the hydraulic control valve has a control cylinder, a control slide and at least one outlet valve that can be manipulated by the control slide, wherein the control slide includes a control that can be guided in a movable manner in the control cylinder and can be loaded with hydraulic control pressure. Piston and control rod. The invention also relates to a control slide for a hydraulic control valve with an adjustable-length connecting rod and to a piston engine with an adjustable-length connecting rod. Background technique [0002] In internal combustion engines with reciprocating pistons, in order to increase the thermal efficiency of the internal combustion engine, it is attempted to v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C7/06F02B75/32
CPCF02B75/045F16C7/06F02D15/02F16K31/122F16K11/07F16K11/161F02B75/32
Inventor 马尔特·黑勒
Owner IWIS MOTORSYSTEME GMBH & CO KG
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