WO2017194050A3 - Control system and non-return valve for arrangement in such a control system - Google Patents

Control system and non-return valve for arrangement in such a control system Download PDF

Info

Publication number
WO2017194050A3
WO2017194050A3 PCT/DE2017/100362 DE2017100362W WO2017194050A3 WO 2017194050 A3 WO2017194050 A3 WO 2017194050A3 DE 2017100362 W DE2017100362 W DE 2017100362W WO 2017194050 A3 WO2017194050 A3 WO 2017194050A3
Authority
WO
WIPO (PCT)
Prior art keywords
control
control system
switching device
pistons
adjusting element
Prior art date
Application number
PCT/DE2017/100362
Other languages
German (de)
French (fr)
Other versions
WO2017194050A2 (en
Inventor
Andreas Nendel
Markus Popp
Michael Knorr
Original Assignee
Schaeffler Technologies AG & Co. KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2017194050A2 publication Critical patent/WO2017194050A2/en
Publication of WO2017194050A3 publication Critical patent/WO2017194050A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/045—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable connecting rod length
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The invention relates to a control system for actuating two control pistons (14 and 15), which interact with an adjusting element, for a device for changing the compression ratio of a cylinder unit of a reciprocating-piston internal combustion engine. The adjusting element is arranged in a connecting-rod eye of a connecting rod and can be adjusted between two different positions, in which the control pistons (14 and 15), which are guided in supporting cylinders (19 and 20), are in a retracted or extended position. In this case, the associated pressure chambers (21 and 22) are connected to a switching device, so that one of the two oil lines (24, 25) can be selectively relieved of pressure by means of the switching device. The switching device comprises a directional control valve (29) which controls both control pistons (14 and 15), and a control slide of the directional control valve (29) is displaced into its two switching positions and held in them via a fluid line (26) originating from the connecting rod bearing (23) exclusively by at least two different control pressures in the interaction with a return spring (37).
PCT/DE2017/100362 2016-05-13 2017-05-02 Control system and non-return valve for arrangement in such a control system WO2017194050A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016208329.5 2016-05-13
DE102016208329.5A DE102016208329B4 (en) 2016-05-13 2016-05-13 Control system and check valve for placement in such a control system

Publications (2)

Publication Number Publication Date
WO2017194050A2 WO2017194050A2 (en) 2017-11-16
WO2017194050A3 true WO2017194050A3 (en) 2018-01-04

Family

ID=58994812

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2017/100362 WO2017194050A2 (en) 2016-05-13 2017-05-02 Control system and non-return valve for arrangement in such a control system

Country Status (2)

Country Link
DE (1) DE102016208329B4 (en)
WO (1) WO2017194050A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018117111A1 (en) * 2018-03-29 2019-10-02 ECO Holding 1 GmbH Connecting rod for a variable compression internal combustion engine
EP3546723B1 (en) * 2018-03-29 2021-01-20 ECO Holding 1 GmbH Connecting rod for a combustion engine with variable compression

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012112481A1 (en) * 2012-12-18 2014-06-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Check valve for connecting rod of engine, has valve closing body, which is movable to and fro for showing valve seat along valve longitudinal axis, where radial inlet-or flow direction is provided in relation to valve longitudinal axis
DE102013206513A1 (en) * 2013-04-12 2014-10-16 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Changeover valve and internal combustion engine with such a changeover valve
DE102013105391A1 (en) * 2013-05-27 2014-11-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Changeover valve and internal combustion engine with such a changeover valve
DE102013210494A1 (en) * 2013-06-06 2014-12-11 Schaeffler Technologies Gmbh & Co. Kg Switching devices for switching valves
EP2821619A1 (en) * 2013-07-05 2015-01-07 Hilite Germany GmbH Connecting rod for a two-stage variable compression
DE102013021065A1 (en) * 2013-12-18 2015-06-18 Fev Gmbh Piston machine with support piston
DE102014220175A1 (en) * 2014-10-06 2016-04-07 Schaeffler Technologies AG & Co. KG control system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010016037B4 (en) * 2010-03-19 2022-07-28 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Combustion engine that has an adjustable compression ratio with a changeover valve
DE102012112434B4 (en) * 2012-12-17 2022-10-20 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Connecting rod arrangement and method for venting a hydraulic cylinder of such a connecting rod arrangement
DE102013111617B4 (en) * 2013-10-22 2021-12-23 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Changeover valve and internal combustion engine with such a changeover valve

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012112481A1 (en) * 2012-12-18 2014-06-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Check valve for connecting rod of engine, has valve closing body, which is movable to and fro for showing valve seat along valve longitudinal axis, where radial inlet-or flow direction is provided in relation to valve longitudinal axis
DE102013206513A1 (en) * 2013-04-12 2014-10-16 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Changeover valve and internal combustion engine with such a changeover valve
DE102013105391A1 (en) * 2013-05-27 2014-11-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Changeover valve and internal combustion engine with such a changeover valve
DE102013210494A1 (en) * 2013-06-06 2014-12-11 Schaeffler Technologies Gmbh & Co. Kg Switching devices for switching valves
EP2821619A1 (en) * 2013-07-05 2015-01-07 Hilite Germany GmbH Connecting rod for a two-stage variable compression
DE102013021065A1 (en) * 2013-12-18 2015-06-18 Fev Gmbh Piston machine with support piston
DE102014220175A1 (en) * 2014-10-06 2016-04-07 Schaeffler Technologies AG & Co. KG control system

Also Published As

Publication number Publication date
DE102016208329B4 (en) 2019-10-31
WO2017194050A2 (en) 2017-11-16
DE102016208329A1 (en) 2017-11-16

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