DE102012112481A1 - 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 - Google Patents

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 Download PDF

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Publication number
DE102012112481A1
DE102012112481A1 DE201210112481 DE102012112481A DE102012112481A1 DE 102012112481 A1 DE102012112481 A1 DE 102012112481A1 DE 201210112481 DE201210112481 DE 201210112481 DE 102012112481 A DE102012112481 A DE 102012112481A DE 102012112481 A1 DE102012112481 A1 DE 102012112481A1
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Prior art keywords
valve
longitudinal axis
connecting rod
check valve
valve closing
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DE201210112481
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German (de)
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Michael Paul
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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Priority to DE201210112481 priority Critical patent/DE102012112481A1/en
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    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • F16K15/028—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Check Valves (AREA)

Abstract

The check valve (11) has a valve closing body, which is movable to and fro for showing a valve seat along a valve longitudinal axis (23). A radial inlet-or flow direction is provided in relation to the valve longitudinal axis. The valve closing body is executed as a valve closing plate (30). The valve closing plate has a shape of a circular disk. The valve closing plate is guided in a cylindrical recess (32) of a spring receiving body (34).

Description

Die Erfindung betrifft ein Rückschlagventil mit einem Ventilschließkörper, der zur Darstellung eines Ventilsitzes entlang einer Ventillängsachse hin und her bewegbar ist, und mit einer bezogen auf die Ventillängsachse radialen Zulauf- und/oder Ablaufrichtung. Die Erfindung betrifft des Weiteren ein Pleuel mit einem derartigen Rückschlagventil. Die Erfindung betrifft darüber hinaus einen Motor mit einem derartigen Pleuel. The invention relates to a check valve with a valve closing body, which is movable to represent a valve seat along a valve longitudinal axis back and forth, and with respect to the valve longitudinal axis radial inlet and / or outlet direction. The invention further relates to a connecting rod with such a check valve. The invention also relates to a motor with such a connecting rod.

Aus der deutschen Offenlegungsschrift DE 198 30 078 A1 ist ein Rückschlagventil mit einem Ventilschließkörper und einer Einlassbohrung bekannt, die radial in eine Bohrung mündet, wobei eine in einem Pumpengehäuse angebrachte Auslassbohrung radial zu der Pumpenbohrung angeordnet ist. Ein vergleichbares Rückschlagventil ist aus der französischen Veröffentlichung FR 2151571 bekannt. From the German patent application DE 198 30 078 A1 is known a check valve with a valve closing body and an inlet bore, which opens radially into a bore, wherein an outlet bore mounted in a pump housing is arranged radially to the pump bore. A similar check valve is from the French publication FR 2151571 known.

Aufgabe der Erfindung ist es, ein Rückschlagventil gemäß dem Oberbegriff des Anspruchs 1, insbesondere im Hinblick auf die Belastbarkeit des Ventilsitzes und/oder den benötigten Bauraum, zu optimieren. The object of the invention is to optimize a check valve according to the preamble of claim 1, in particular with regard to the load capacity of the valve seat and / or the required space.

Die Aufgabe ist bei einem Rückschlagventil mit einem Ventilschließkörper, der zur Darstellung eines Ventilsitzes entlang einer Ventillängsachse hin und her bewegbar ist, und mit einer bezogen auf die Ventillängsachse radialen Zulauf- und/oder Ablaufrichtung, dadurch gelöst, dass der Ventilschließkörper als Ventilschließplatte ausgeführt ist. Die Ventilschließplatte hat sich im Hinblick auf eine im Betrieb auftretende Belastung des Ventilsitzes als vorteilhaft erwiesen. The object is achieved with a check valve having a valve closing body, which is movable to represent a valve seat along a valve longitudinal axis back and forth, and with respect to the valve longitudinal axis radial inlet and / or outlet direction, achieved in that the valve closing body is designed as a valve closing plate. The valve closing plate has proved to be advantageous in view of a load occurring during operation of the valve seat.

Ein bevorzugtes Ausführungsbeispiel des Rückschlagventils ist dadurch gekennzeichnet, dass die Ventilschließplatte im Wesentlichen die Gestalt einer Kreisscheibe aufweist. Die Kreisscheibe hat im Wesentlichen die Gestalt eines geraden Kreiszylinders, dessen Zylinderachse mit der Ventillängsachse zusammenfällt. A preferred embodiment of the check valve is characterized in that the valve-closing plate has substantially the shape of a circular disk. The circular disc has essentially the shape of a straight circular cylinder whose cylinder axis coincides with the valve longitudinal axis.

Ein weiteres bevorzugtes Ausführungsbeispiel des Rückschlagventils ist dadurch gekennzeichnet, dass die Ventilschließplatte in einer Zylindersenkung eines Federaufnahmekörpers geführt ist. Durch die Abmessung der Zylindersenkung in Richtung der Ventillängsachse kann auf einfache Art und Weise der Ventilhub des Rückschlagventils begrenzt werden. A further preferred embodiment of the check valve is characterized in that the valve closing plate is guided in a cylinder depression of a spring receiving body. Due to the dimension of the cylinder counterbore in the direction of the valve longitudinal axis, the valve lift of the check valve can be limited in a simple manner.

Ein weiteres bevorzugtes Ausführungsbeispiel des Rückschlagventils ist dadurch gekennzeichnet, dass der Federaufnahmekörper ein zentrales Sackloch zur Aufnahme einer Ventilfeder aufweist. Dadurch kann in Kombination mit der erfindungsgemäßen Ventilschließplatte eine besonders kompakte Ventilbauform dargestellt werden. A further preferred embodiment of the check valve is characterized in that the spring receiving body has a central blind hole for receiving a valve spring. This can be represented in combination with the valve closing plate according to the invention a particularly compact valve design.

Ein weiteres bevorzugtes Ausführungsbeispiel des Rückschlagventils ist dadurch gekennzeichnet, dass die Ventilschließplatte gegen einen Ventilsitzkörper vorgespannt ist. Der Ventilsitzkörper kann zur Darstellung eines definierten Ventilsitzes mit einer Ventilsitzkante ausgestattet sein. Alternativ kann eine Dichtkante an der Ventilschließplatte ausgebildet sein. Another preferred embodiment of the check valve is characterized in that the valve closure plate is biased against a valve seat body. The valve seat body can be equipped with a valve seat edge for the representation of a defined valve seat. Alternatively, a sealing edge may be formed on the valve closing plate.

Ein weiteres bevorzugtes Ausführungsbeispiel des Rückschlagventils ist dadurch gekennzeichnet, dass der Ventilsitzkörper ein zentrales Durchgangsloch aufweist. Das zentrale Durchgangsloch in dem Ventilsitzkörper ermöglicht den Durchtritt von Medium, insbesondere Hydraulikmedium, wie Hydrauliköl, wenn die Ventilschließplatte von dem Ventilsitz abhebt. Another preferred embodiment of the check valve is characterized in that the valve seat body has a central through hole. The central through hole in the valve seat body allows the passage of medium, in particular hydraulic medium, such as hydraulic oil, when the valve closing plate lifts from the valve seat.

Die Erfindung betrifft des Weiteren einen Pleuel mit einem vorab beschriebenen Rückschlagventil. Bei dem Pleuel handelt es sich vorzugsweise um ein sogenanntes VCR-Pleuel, wobei die Buchstaben VCR für Variable Compression Ratio stehen, was variables Verdichtungsverhältnis bedeutet. Ein derartiger Pleuel ist vorzugsweise mit mindestens einem vorab beschriebenen Rückschlagventil, vorzugsweise mit zwei vorab beschriebenen Rückschlagventilen, ausgestattet. The invention further relates to a connecting rod with a check valve described above. The connecting rod is preferably a so-called VCR connecting rod, the letters VCR standing for Variable Compression Ratio, which means variable compression ratio. Such a connecting rod is preferably equipped with at least one check valve described above, preferably with two check valves described above.

Die Erfindung betrifft des Weiteren einen Motor mit einer Motorlängsachse und mit einem vorab beschriebenen Pleuel, in welches das Rückschlagventil so eingebaut ist, dass die Ventillängsachse parallel zur Motorlängsachse angeordnet ist. Dadurch kann eine Belastung der Ventilschließplatte durch Zentrifugalkräfte im Betrieb des Motors vermieden werden. The invention further relates to a motor with a motor longitudinal axis and with a connecting rod described above, in which the check valve is installed so that the valve longitudinal axis is arranged parallel to the engine longitudinal axis. As a result, a load on the valve closing plate can be avoided by centrifugal forces during operation of the engine.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein Ausführungsbeispiel im Einzelnen beschrieben ist. Es zeigen: Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawings, an embodiment is described in detail. Show it:

1 eine perspektivische Darstellung eines Pleuels mit einem erfindungsgemäßen Rückschlagventil und 1 a perspective view of a connecting rod with a check valve according to the invention and

2 eine vergrößerte Darstellung des Rückschlagventils aus 1 im Längsschnitt. 2 an enlarged view of the check valve 1 in longitudinal section.

In 1 ist ein Pleuel 1 mit einem Pleuelkopf 4 und einem Pleuelfuß 5 perspektivisch dargestellt. In den Pleuelfuß 5 ist ein Pleuellager 8 integriert, dessen Position verstellbar ist. Dadurch kann in einem sogenannten VCR-Kurbeltrieb ein variables Verdichtungsverhältnis dargestellt werden. Die Buchstaben VCR stehen für Variable Compression Ratio, was variables Verdichtungsverhältnis bedeutet. In 1 is a connecting rod 1 with a connecting rod 4 and a big end 5 shown in perspective. In the big bowel 5 is a connecting rod bearing 8th integrated, whose position is adjustable. As a result, a variable compression ratio can be displayed in a so-called VCR crank mechanism. The letters VCR stands for Variable Compression Ratio, which means variable compression ratio.

Die Verstellung der Position des Pleuellagers 8 erfolgt hydraulisch mit Hilfe von zwei Rückschlagventilen 11, 12, deren Einbaulage in 1 durch zwei Kreise angedeutet ist. Die Rückschlagventile 11, 12 sind dabei so in das Pleuel 1 eingebaut, dass Ventillängsachsen der Rückschlagventile 11, 12 parallel zu einer Motorlängsachse verlaufen. The adjustment of the position of the connecting rod bearing 8th hydraulically by means of two check valves 11 . 12 , whose installation position in 1 indicated by two circles. The check valves 11 . 12 are doing so in the connecting rod 1 built-in, that valve longitudinal axes of the check valves 11 . 12 run parallel to a motor longitudinal axis.

In 2 ist das Rückschlagventil 11 vergrößert im Längsschnitt dargestellt. Das in 2 dargestellte Rückschlagventil 11 umfasst ein Ventilgehäuse 20 mit einer Hülse 22. Die Hülse 22 ist an ihrem in 2 linken Ende offen und ihrem in 2 rechten Ende durch einen Boden 24 geschlossen. In 2 is the check valve 11 enlarged shown in longitudinal section. This in 2 illustrated check valve 11 includes a valve housing 20 with a sleeve 22 , The sleeve 22 is at her in 2 left end open and hers in 2 right end through a floor 24 closed.

Die Hülse 22 hat im Wesentlichen die Gestalt eines geraden Kreiszylindermantels mit einer Zylinderachse 23, welche eine Ventillängsachse darstellt. Das Ventilgehäuse 20 wird so in eine entsprechende Bohrung des Pleuels 1 eingebaut, dass ein Zulauf 25 und ein Ablauf 26 radial außen in das Ventilgehäuse 20 münden. Dabei ist der Zulauf 25 und der Ablauf 26 radial zur Ventillängsachse 23 angeordnet. The sleeve 22 has substantially the shape of a straight circular cylinder jacket with a cylinder axis 23 , which represents a valve longitudinal axis. The valve housing 20 is so in a corresponding hole of the connecting rod 1 built in that an inlet 25 and a process 26 radially outside into the valve housing 20 lead. Here is the feed 25 and the process 26 radial to the valve longitudinal axis 23 arranged.

Das Rückschlagventil 11 umfasst einen Ventilsitzkörper 28, der in dem Ventilgehäuse 20 an dem Boden 24 anliegt. Der Ventilsitzkörper 28 weist ein zentrales Durchgangsloch auf, das den Zulauf 25 mit dem Ablauf 26 verbindet. The check valve 11 includes a valve seat body 28 which is in the valve body 20 on the ground 24 is applied. The valve seat body 28 has a central through hole, which is the inlet 25 with the process 26 combines.

Eine Ventilschließplatte 30 ist so gegen den Ventilsitzkörper 28 vorgespannt, dass das zentrale Durchgangsloch in dem Ventilsitzkörper 28 verschlossen ist. Dabei ist die Ventilschließplatte 30 in Richtung der Ventillängsachse 23 hin und her bewegbar in einer Zylindersenkung 32 eines Federaufnahmekörpers 34 geführt. Der Federaufnahmekörper 34 umfasst ein zentrales Sackloch 35, in dem eine Ventilfeder 38 gegen die Ventilschließplatte 30 vorgespannt ist. Durch die Vorspannkraft der Ventilfeder 38 wird die Ventilschließplatte 30 so gegen den Ventilsitzkörper 28 gedrückt, dass das zentrale Durchgangsloch 35 in dem Ventilsitzkörper 28 durch die Ventilschließplatte 30 dicht verschlossen wird. A valve closing plate 30 is so against the valve seat body 28 biased that the central through hole in the valve seat body 28 is closed. Here is the valve closing plate 30 in the direction of the valve longitudinal axis 23 movable back and forth in a cylinder counterbore 32 a spring receiving body 34 guided. The spring receiving body 34 includes a central blind hole 35 in which a valve spring 38 against the valve closing plate 30 is biased. By the biasing force of the valve spring 38 becomes the valve closing plate 30 so against the valve seat body 28 pressed that central through hole 35 in the valve seat body 28 through the valve closing plate 30 is sealed tight.

Wenn eine durch den Druck im Zulauf 25 bewirkte Druckkraft auf die Ventilschließplatte 30 die Federvorspannkraft der Ventilfeder 38 übersteigt, dann hebt die Ventilschließplatte 30 von dem Ventilsitzkörper 28 ab, so dass die Verbindung zwischen dem Zulauf 25 und dem Ablauf 26 freigegeben wird. Ein Rückströmen vom Ablauf 26 in den Zulauf 25 wird durch die federvorgespannte Ventilschließplatte 30 verhindert. If any by the pressure in the inlet 25 caused pressure force on the valve closing plate 30 the spring biasing force of the valve spring 38 exceeds, then raises the valve closing plate 30 from the valve seat body 28 off, leaving the connection between the inlet 25 and the process 26 is released. A backflow from the drain 26 in the inflow 25 is by the spring-biased valve closing plate 30 prevented.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 19830078 A1 [0002] DE 19830078 A1 [0002]
  • FR 2151571 [0002] FR 2151571 [0002]

Claims (8)

Rückschlagventil mit einem Ventilschließkörper, der zur Darstellung eines Ventilsitzes entlang einer Ventillängsachse (23) hin und her bewegbar ist, und mit einer bezogen auf die Ventillängsachse (23) radialen Zulauf- und/oder Ablaufrichtung, dadurch gekennzeichnet, dass der Ventilschließkörper als Ventilschließplatte (30) ausgeführt ist. Non-return valve with a valve closing body, which is used to represent a valve seat along a valve longitudinal axis ( 23 ) is movable back and forth, and with respect to the valve longitudinal axis ( 23 ) radial inlet and / or outlet direction, characterized in that the valve closing body as a valve closing plate ( 30 ) is executed. Rückschlagventil nach Anspruch 1, dadurch gekennzeichnet, dass die Ventilschließplatte (30) im Wesentlichen die Gestalt einer Kreisscheibe aufweist. Check valve according to claim 1, characterized in that the valve closing plate ( 30 ) has substantially the shape of a circular disk. Rückschlagventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ventilschließplatte (30) in einer Zylindersenkung (32) eines Federaufnahmekörpers (34) geführt ist. Check valve according to one of the preceding claims, characterized in that the valve closing plate ( 30 ) in a cylinder counterbore ( 32 ) of a spring receiving body ( 34 ) is guided. Rückschlagventil nach Anspruch 3, dadurch gekennzeichnet, dass der Federaufnahmekörper (34) ein zentrales Sackloch (35) zur Aufnahme einer Ventilfeder (38) aufweist. Check valve according to claim 3, characterized in that the spring receiving body ( 34 ) a central blind hole ( 35 ) for receiving a valve spring ( 38 ) having. Rückschlagventil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ventilschließplatte (30) gegen einen Ventilsitzkörper (28) vorgespannt ist. Check valve according to one of the preceding claims, characterized in that the valve closing plate ( 30 ) against a valve seat body ( 28 ) is biased. Rückschlagventil nach Anspruch 5, dadurch gekennzeichnet, dass der Ventilsitzkörper (28) ein zentrales Durchgangsloch aufweist. Check valve according to claim 5, characterized in that the valve seat body ( 28 ) has a central through hole. Pleuel mit einem Rückschlagventil (11) nach einem der vorhergehenden Ansprüche. Connecting rod with a check valve ( 11 ) according to any one of the preceding claims. Motor mit einer Motorlängsachse und mit einem Pleuel (1) nach Anspruch 7, in welches das Rückschlagventil (11) so eingebaut ist, dass die Ventillängsachse (23) parallel zur Motorlängsachse angeordnet ist. Motor with a motor longitudinal axis and with a connecting rod ( 1 ) according to claim 7, in which the check valve ( 11 ) is installed so that the valve longitudinal axis ( 23 ) is arranged parallel to the motor longitudinal axis.
DE201210112481 2012-12-18 2012-12-18 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 Pending DE102012112481A1 (en)

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DE201210112481 DE102012112481A1 (en) 2012-12-18 2012-12-18 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

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DE201210112481 DE102012112481A1 (en) 2012-12-18 2012-12-18 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

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3173601A1 (en) 2015-11-25 2017-05-31 Hilite Germany GmbH Non-return valve for a connecting rod for a variable compression of an internal combustion engine, and connecting rod with such a non-return valve
DE102016110279A1 (en) 2015-11-25 2017-06-01 Hilite Germany Gmbh Check valve for a connecting rod for variable compression of an internal combustion engine and connecting rod with such a check valve
CN107191467A (en) * 2016-03-14 2017-09-22 伊希欧1控股有限公司 For controlling the switching valve of hydraulic fluid stream and connecting rod with switching valve
WO2017162425A1 (en) * 2016-03-21 2017-09-28 ECO Holding 1 GmbH Non-return valve for a connecting rod for an internal combustion engine with variable compression and connecting rod having a non-return valve
WO2017194050A3 (en) * 2016-05-13 2018-01-04 Schaeffler Technologies AG & Co. KG Control system and non-return valve for arrangement in such a control system
EP3267012A1 (en) 2016-07-08 2018-01-10 ECO Holding 1 GmbH Check valve for a connecting rod for a combustion engine with variable compression
DE102017106987A1 (en) 2016-07-08 2018-01-11 ECO Holding 1 GmbH Check valve for a connecting rod for a variable compression internal combustion engine
AT15576U1 (en) * 2016-04-29 2018-03-15 Avl List Gmbh Length adjustable connecting rod
DE102017106994A1 (en) 2016-09-23 2018-03-29 ECO Holding 1 GmbH Check valve for a connecting rod for a variable compression internal combustion engine
DE102016124163A1 (en) 2016-12-13 2018-06-14 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Connecting rod and internal combustion engine
EP3361069A1 (en) 2017-02-13 2018-08-15 ECO Holding 1 GmbH Connecting rod of a combustion engine with variable compression with a check valve
DE102017121443A1 (en) 2017-02-13 2018-08-16 ECO Holding 1 GmbH Check valve for a connecting rod of an internal combustion engine with variable compression and connecting rod with such a check valve
US20180328276A1 (en) * 2017-05-15 2018-11-15 ECO Holding 1 GmbH Connecting rod for an internal combustion engine with variable compression
US10352469B2 (en) 2016-10-21 2019-07-16 ECP Holding 1 GmbH Electromagnetic pressure control valve
DE102018116966A1 (en) 2018-06-27 2020-01-02 ECO Holding 1 GmbH Check valve for a connecting rod of an internal combustion engine with variable compression and connecting rod with a check valve

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US1889122A (en) * 1930-11-24 1932-11-29 Westinghouse Air Brake Co Check valve device
FR1595949A (en) * 1968-12-06 1970-06-15
FR2151571A5 (en) 1971-09-03 1973-04-20 Havre Nle Ateliers Chant
DE3642524C1 (en) * 1986-12-12 1987-07-23 Daimler Benz Ag Device for controlling the oil supply in a control chamber of a piston with variable compression height
DE19830078A1 (en) 1998-07-06 2000-01-13 Bosch Gmbh Robert Return valve with closure body and seating
JP2001153242A (en) * 1999-11-29 2001-06-08 Kayaba Ind Co Ltd Check valve
DE10243023A1 (en) * 2002-09-17 2004-03-25 Fev Motorentechnik Gmbh Reciprocating engine used as a reciprocating internal combustion engine comprises a connecting rod having a connecting rod bearing mounted on an eccentric ring, and an adjusting device

Patent Citations (8)

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Publication number Priority date Publication date Assignee Title
US1238334A (en) * 1916-09-26 1917-08-28 Harvey M Ueberroth Check-valve.
US1889122A (en) * 1930-11-24 1932-11-29 Westinghouse Air Brake Co Check valve device
FR1595949A (en) * 1968-12-06 1970-06-15
FR2151571A5 (en) 1971-09-03 1973-04-20 Havre Nle Ateliers Chant
DE3642524C1 (en) * 1986-12-12 1987-07-23 Daimler Benz Ag Device for controlling the oil supply in a control chamber of a piston with variable compression height
DE19830078A1 (en) 1998-07-06 2000-01-13 Bosch Gmbh Robert Return valve with closure body and seating
JP2001153242A (en) * 1999-11-29 2001-06-08 Kayaba Ind Co Ltd Check valve
DE10243023A1 (en) * 2002-09-17 2004-03-25 Fev Motorentechnik Gmbh Reciprocating engine used as a reciprocating internal combustion engine comprises a connecting rod having a connecting rod bearing mounted on an eccentric ring, and an adjusting device

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3173601A1 (en) 2015-11-25 2017-05-31 Hilite Germany GmbH Non-return valve for a connecting rod for a variable compression of an internal combustion engine, and connecting rod with such a non-return valve
DE102016110279A1 (en) 2015-11-25 2017-06-01 Hilite Germany Gmbh Check valve for a connecting rod for variable compression of an internal combustion engine and connecting rod with such a check valve
CN106801750A (en) * 2015-11-25 2017-06-06 海力达德国有限公司 Check-valves for the connecting rod of changeably compression internal combustion engine and the connecting rod with this check-valves
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CN107191467A (en) * 2016-03-14 2017-09-22 伊希欧1控股有限公司 For controlling the switching valve of hydraulic fluid stream and connecting rod with switching valve
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