WO2019161879A1 - Ensemble soupape pour un système de fluide sous pression - Google Patents

Ensemble soupape pour un système de fluide sous pression Download PDF

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Publication number
WO2019161879A1
WO2019161879A1 PCT/EP2018/054077 EP2018054077W WO2019161879A1 WO 2019161879 A1 WO2019161879 A1 WO 2019161879A1 EP 2018054077 W EP2018054077 W EP 2018054077W WO 2019161879 A1 WO2019161879 A1 WO 2019161879A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
check valve
flow
solenoid valve
housing part
Prior art date
Application number
PCT/EP2018/054077
Other languages
German (de)
English (en)
Inventor
Anita Dickmann
Thomas Grünhagen
Nikolaus Henze
Lukas Romanowski
Markus Schwarz
Original Assignee
Pierburg Gmbh
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 Pierburg Gmbh filed Critical Pierburg Gmbh
Priority to PCT/EP2018/054077 priority Critical patent/WO2019161879A1/fr
Publication of WO2019161879A1 publication Critical patent/WO2019161879A1/fr

Links

Classifications

    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/44—Details of seats or valve members of double-seat valves
    • 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
    • F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated

Definitions

  • the invention relates to a valve device for a pressure fluid system having a check valve with a check valve housing having an inlet and an outlet and in which a check valve body is arranged, which is loaded by a spring element in the closing direction and via which a flow cross-section between the inlet and the outlet in Dependence of a difference between a front side facing the inlet to the inlet facing the check valve body opening pressure and a voltage applied to a back of the check valve body closing pressure is closed or released, a solenoid valve with an actuator housing part in which an electromagnetic actuator is arranged, and a flow-through housing part, wherein an inlet port fluidly connected to the inlet of the check valve and a communication port fluidly connected to the back of the check valve body are formed in which a connection between the inlet opening and the connecting opening of the electromagnetic valve is releasable or closable by the solenoid valve, and a discharge channel, via the fluid from the back of the check valve body can be discharged.
  • valve devices are used, for example, in internal combustion engines for oil cooling of pistons.
  • the valve device is integrated into the cooling circuit of the internal combustion engine and serves to control a flow to the cooling nozzles, which are usually arranged under the piston.
  • piston cooling valves are usually designed as self-opening check valves that release the way to the cooling nozzles at a sufficient pressure difference against the force of a spring acting in the closing direction.
  • Such a valve device is known, for example, from US 2013/0152883 A1.
  • a spring-loaded piston-shaped check valve is arranged in a bore of a flow housing, which has an inlet channel which is connected to an oil pump and an outlet channel which is connected to an injection nozzle.
  • the inlet passage is additionally connected, via another passage extending into a solenoid valve housing, to the inlet of a solenoid valve whose outlet is connected to a rear side of the piston-shaped stop valve in the flow housing, so that when the solenoid valve is opened, the inlet pressure both on the front side and acts on the back of the check valve, whereby this is moved in the closing direction due to the acting spring force.
  • this valve device has the disadvantage that various holes must be provided in the housings for receiving and fixing the two valves, which additionally has a relatively large Require space. Furthermore, there is an increased oil consumption, since in the flow housing an additional discharge channel for pressure relief of the check valve back must be formed, which is continuously open when the check valve is closed, creating a leakage current.
  • valve device in which an electromagnetic pilot valve is arranged directly axially adjacent to the check valve, so that only a bore for receiving the valve unit in the flow housing must be provided.
  • this valve is not suitable for use as a lockable check valve, since the inlet pressure on the front side is not completely transferable to the back, but is steadily reduced.
  • valve device It is therefore the object to provide a valve device, with the required installation space and costs can be reduced.
  • installation should be simplified.
  • valve device should be used as a lockable pressure difference-controlled valve, which minimizes the oil consumption, especially in the closed state of the check valve.
  • valve device for a pressure fluid system having the features of the main claim 1.
  • the flow-through bare housing part of the solenoid valve is arranged completely radially within the check valve housing, the space used is significantly reduced and dispensed with additional seals and holes for introducing the two valves, whereby the manufacturing and assembly costs can be reduced.
  • the flow-through housing part of the solenoid valve is understood to mean the housing part in which Flow channels and connecting openings, such as inlets and outlets and the valve seats are formed, but not housing parts that only come into contact with the fluid without a channel to limit or form, which is to be flowed through.
  • a second spring element is arranged, via which a closing member of the solenoid valve in the direction of a valve seat, which limits a flow cross-section between the inlet opening and the connection opening, which is fluidly connected to the back of the check valve body is loaded, so that the Connection between the inlet opening of the solenoid valve and the back of the check valve is closed in the non-energized state of the electromagnetic actuator.
  • the connection of the inlet to the rear occlusive solenoid valve is provided, which has a predetermined state in this state position of the closing member, which is realized in a simple manner by a second spring element.
  • the spring element can be designed according to the energization and the size of the electromagnet, so that with a small actuator and low electromagnetic forces, the function can be ensured.
  • the second spring element is arranged radially within the first spring element of the check valve, whereby the required installation space is additionally reduced and a nested easy-to-install unit is formed.
  • the axial space is advantageously additionally reduced.
  • a sliding bush is arranged in the check valve body, in which the check valve body is mounted. This can be correspondingly operated with low friction, so that the connection opening pressure difference largely depends only on the spring force of the force acting on the check valve body spring element.
  • the check valve body is formed as a one-sided open cylinder Flohl, in the interior of which the first spring element of the check valve protrudes, which is clamped between a bottom of the Flohlzylinders and the flow-through housing part of the solenoid valve. This creates a large-scale sliding seat, whereby a tilting of the check valve body is prevented. At the same time a reliable guidance of the spring element is ensured.
  • the through-flow bare housing part of the solenoid valve protrudes with a hollow cylindrical projection in the check valve body, in the interior of which a pin-shaped actuator is mounted, which loads the closing member of the solenoid valve in the direction of the valve seat by means of the second spring element.
  • the position of the closing member can be predetermined in a simple manner.
  • the pin and the projection provide reliable guidance of the spring element, which is thus protected against kinking. Due to the long guide and tilting of the pin-shaped actuator is avoided.
  • the check valve housing the check valve body, the first spring element, the second spring element, the hollow cylindrical projection of the flow-through housing part and the pin-shaped actuator of the solenoid valve Preferably, in a cross section perpendicular to the direction of movement of the check valve body extend the check valve housing the check valve body, the first spring element, the second spring element, the hollow cylindrical projection of the flow-through housing part and the pin-shaped actuator of the solenoid valve. Accordingly, seven different elements of the valve device are arranged radially in a single plane radially into one another, whereby a high compactness of the valve device is achieved with very low axial height. In a further embodiment, this further extends in the cross section in addition to the sliding bush, the solenoid valve facing end of the flow-through housing part of the solenoid valve is radially surrounded and abuts axially against the flow-through bare housing part of the solenoid valve.
  • an inlet channel extends in the cross section through which the inlet of the check valve is connected to the inlet opening of the flow-through housing part of the solenoid valve and which is formed between the slide bushing and the check valve housing. Accordingly, this channel does not have to be formed in a surrounding flow housing but is part of the valve device.
  • the Fier ein this channel is particularly simple, since it can be formed directly in the Fier ein of the check valve housing as a recess which is closed by the slide bushing. This saves additional space.
  • the assembly is further simplified when the flow-through bare housing part of the solenoid valve and the check valve housing are held axially in a bore of a flow housing by the actuator housing part.
  • the solenoid valve has a second valve seat, which is releasable or closable by the closing member, wherein the second valve seat defines a flow area between the connection opening, which is fluidly connected to the back of the check valve body, and the discharge channel, wherein the closure member by energizing the electromagnetic Actuator can be placed on the second valve seat.
  • the second valve seat defines a flow area between the connection opening, which is fluidly connected to the back of the check valve body, and the discharge channel, wherein the closure member by energizing the electromagnetic Actuator can be placed on the second valve seat.
  • the solenoid valve has a valve rod which is connected to an armature of the solenoid valve and against the closing member, which is designed as a ball, is displaceable, abuts the spring-loaded pin-shaped actuator at its opposite end.
  • the ball as a closing member is insensitive to tilting and allows over the entire circumference in each case a reliable closure of the two valve seats.
  • valve device for a pressure fluid system which is introduced as a piston cooling valve between a spray nozzle and the oil pump simply in a single mounting hole with minimal installation and manufacturing costs.
  • the required space is minimized, since both can be dispensed with a second bore, and by the strong nesting of the various elements into each other, the axial height is minimized.
  • a leakage current is almost completely prevented with actively closed check valve, without requiring additional space.
  • valve device according to the invention for a pressurized fluid system is shown in the figures and will be described below.
  • FIG. 1 shows a side view of a valve device according to the invention for a pressure fluid system in a sectional view.
  • the valve device consists of a check valve 10 and a solenoid valve 12, which are inserted together in a bore 14 of a flow housing 16.
  • the flow housing 16 has an inlet conduit 18 extending axially to the check valve 10 and two outlet conduits 20, 22 extending radially from the check valve 10, the first of which
  • a check valve housing 24 of the check valve 10 having an inlet 26 fluidly connected to the inlet conduit 18 and an outlet 28 connected to the first outlet conduit 20 of the flow housing 16. Furthermore, a relief channel 30, which is fluidically connected to the second outlet line 22, is formed on the check valve housing 24. Between the two outlet lines 20, 22, an O-ring seal 29 is arranged in a groove on the outer circumference of the check valve housing 24.
  • a slide bush 32 is fixed, in which a check valve body 34 is mounted axially slidably.
  • This check valve body 34 is formed in the present embodiment as a hollow cylinder open on one side, the closed front side 36 is directed to the inlet 26 and the rear side 38 is directed to the solenoid valve 12.
  • a spring element 40 which is arranged clamped between a bottom 42 on the closed side of the hollow cylinder and a check valve body 34 facing wall of a flow-through housing part 44 of the solenoid valve 12, which according to the invention radially completely and over its entire axial height Block valve housing 24 is surrounded and thus with the check valve housing 24 in the same bore 14th can be placed.
  • a shoulder is formed in the check valve housing 24, on which the flow-through bare housing part 44 rests.
  • the solenoid valve 12 has an electromagnetic actuator 46 with a coil 48 which is wound in a known manner on a bobbin 50 and can be supplied via a not visible in the view plug with voltage.
  • the electromagnetic circuit is closed by two return plates 54, 56 arranged at the opposite axial ends of the coil carrier 50, as well as a yoke 58, a core 60 and an armature 62.
  • the armature 62 is axially movably mounted on the axially opposite to the check valve 10 axial end within an axially extending in the bobbin portion of the first return plate 54 axially.
  • the actuator 46 is disposed within an actuator housing part 64 by means of which the valve device is attached to the flow housing 16 by, on the one hand, a flange 66 of Aktorgephinuseteils 64 rests on one axial end of the check valve housing 24 and on the other hand extending from the flange 66 into the interior of the check valve housing 24 annular projection 68 which flows through bare housing part 44 axially against a shoulder 70 of the check valve housing 24.
  • the armature 62 of the solenoid valve 12 cooperates with a valve rod 72 which is guided in the core 60 and extends through the core 60 in the flow-through housing part 44 of the solenoid valve 12.
  • the valve rod 72 is opposite to a arranged in the flow-through housing part 44 closing member 74 of the solenoid valve 12, which is designed as a ball arranged.
  • the valve rod 72 When energized, the valve rod 72 is pressed against the closing member 74 to move it, while in the non-energized state on the armature 62 and the valve rod 72 no spring or electromagnetic forces act, so that usually and depending on the mounting position in not energized state optionally forms a gap between the closing member 74 and the valve rod 72.
  • a pin-shaped actuator 76 On the opposite side to the valve rod 72 is a pin-shaped actuator 76 against the closing member 74, wherein the pin-shaped actuator 76 is axially movably guided in a hollow cylindrical projection 78 of a housing base 80 of the flow-through housing part 44.
  • a second spring element 82 In the hollow cylindrical projection 78, a second spring element 82, the pin-shaped actuator 76 is disposed radially surrounding.
  • the second spring member 82 between an inner shoulder 84 of the housing base 80 which is formed directly above a first guide portion 85 of the pin-shaped actuator 76, and a radially widening portion 86 of the pin-shaped Actuator 76, which serves as a second guide portion in the hollow cylindrical projection 78, clamped.
  • the elements of the solenoid valve 12 and the check valve 10 are arranged so that the pin-shaped actuator 76 is disposed radially within the second spring element 82, which in turn is surrounded by the hollow cylindrical projection 78 of the flow-through housing part 44 which is radially surrounded by the first spring element 40, which in turn is arranged in the check valve body 34.
  • the closing member 74 is pressed when not energized actuator 46 against a first valve seat 88, the an upper housing part 90 of the through-flow housing part 44 is formed, which is fixedly connected to the lower housing part 80 with the interposition of a plate 92.
  • an inlet opening 94 is formed, which opens at the first valve seat 88, so that the valve rod 72 projects through the inlet opening 94.
  • This second valve seat 96 is formed at the upper end of a through-bore 98 in the plate 92 facing the upper housing part 90, through which the pin-shaped actuator 76 projects, leaving a gap between the walls of the through-bore 98 and the pin-shaped actuator 76.
  • the actuator 46 is de-energized. This has the consequence that the check valve 10 opens or closes depending on the applied pressure difference.
  • an additional inlet channel 100 which is formed by an axially extending recess in the check valve housing 24 between it and the sliding bush 32 and thus likewise extends through the cross section Q, fluid with the existing inlet pressure is present at the inlet opening 94 of the solenoid valve 12.
  • Flierzu is arranged in extension of the inlet channel 100, a through hole 102 in the housing part 80, which leads via a nozzle 104 in the plate 92 in a space 106 between the actuator 46 and the flow-through housing part 44, from which the inlet opening 94 into the interior of the Wegströmbaren housing part 44 extends. Since the closing member 74 rests on the first valve seat 88 in this state, no fluid reaches the rear side 38 of the check valve body 34.
  • connection opening 108 which extends through the housing lower part 80 and the plate 92 into the housing upper part 90 and here through the gap between the through hole 98 and the pin-shaped actuator 76 and thereon Subsequently, via an outlet channel 110 which is formed between the plate 92 and the housing part 80, pressurized fluid from the back 38 of the check valve body 34 are discharged into the discharge channel 30, in which the outlet channel 110 opens.
  • the electromagnetic actuator 46 is energized.
  • the closing member 74 is pressed by the valve rod 72 against the force of the second spring element 82 on the second valve seat 96, so that a fluid connection between the back 38 of the check valve body 34 and the discharge channel 30 is interrupted.
  • pressurized fluid can now flow from the inlet 26 via the inlet channel 100, the passage opening 102, the nozzle 104 and the inlet opening 94, at the end of which the throughflow cross section surrounded by the first valve seat 88 is formed, to the connection opening 108 and thus to the rear side of the check valve 10 ,
  • a pressure equalization between the front 36 and the back 38 of the check valve body 34 is made so that it is displaced due to the spring force of the first spring element 40 in its the flow cross-section between the inlet 26 and the outlet 28 occluding position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

L'invention concerne des ensembles soupape pour un système de fluide sous pression, comportant une soupape d'arrêt (10) doté d'un boîtier de soupape d'arrêt (24) qui présente une entrée (26) et une sortie (28) et dans lequel un corps de soupape d'arrêt (34) est disposé, qui est sollicité dans le sens de fermeture par un élément à ressort (40) et par lequel une section d'écoulement entre l'entrée (26) et la sortie (28) est fermée ou ouverte en fonction d'une différence entre une pression d'ouverture agissant sur une face frontale (36) du corps de la soupape d'arrêt (34) orientée vers le côté frontal (36) de l'entrée (26) et une pression de fermeture appliquée sur une face arrière (38) de la soupape d'arrêt (34), une vanne électromagnétique (12) comportant une partie de boîtier d'actionneur (64) dans laquelle est disposé un actionneur électromagnétique (46), et une partie de boîtier fluide (44) dans laquelle une ouverture d'entrée (94) reliée de manière fluidique à l'entrée (26) de la vanne d'arrêt (10) et une ouverture de connexion (108) reliée de manière fluidique à la face arrière (38) du corps de la soupape d'arrêt (34) est prévue, une liaison entre l'ouverture d'entrée (94) et l'ouverture de liaison (108) de l'électrovanne (12) pouvant être libérée ou fermée par l'électrovanne (12), et un canal de décharge (30), par lequel un fluide peut être évacué par la face arrière (38) du corps de la soupape d'arrêt (34). Afin de réduire l'espace de montage d'une telle soupape et de simplifier le montage et la fabrication, selon l'invention, la partie (44), pouvant être traversée, du corps de l'électrovanne (12) est disposée complètement radialement à l'intérieur du corps de la soupape d'arrêt (24).
PCT/EP2018/054077 2018-02-20 2018-02-20 Ensemble soupape pour un système de fluide sous pression WO2019161879A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/054077 WO2019161879A1 (fr) 2018-02-20 2018-02-20 Ensemble soupape pour un système de fluide sous pression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/054077 WO2019161879A1 (fr) 2018-02-20 2018-02-20 Ensemble soupape pour un système de fluide sous pression

Publications (1)

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WO2019161879A1 true WO2019161879A1 (fr) 2019-08-29

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PCT/EP2018/054077 WO2019161879A1 (fr) 2018-02-20 2018-02-20 Ensemble soupape pour un système de fluide sous pression

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Country Link
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120241022A1 (en) * 2011-03-27 2012-09-27 Yamada Manufacturing Co., Ltd. Relief valve device
US20130152883A1 (en) 2008-09-09 2013-06-20 Bontaz Centre Device for controlling supply of a system with a fluid
DE102014212329A1 (de) 2014-06-26 2015-12-31 Robert Bosch Gmbh Ventileinrichtung
US20170016555A1 (en) * 2015-07-16 2017-01-19 Honeywell International Inc. Pneumatic mixing valve
EP3225799A1 (fr) * 2016-04-01 2017-10-04 HUSCO Automotive Holdings LLC Soupape de régulation de jet de refroidissement d'huile à commande pilote
WO2017174058A1 (fr) * 2016-04-07 2017-10-12 Schaeffler Technologies AG & Co. KG Dispositif servant au refroidissement d'un piston d'un moteur à combustion interne

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130152883A1 (en) 2008-09-09 2013-06-20 Bontaz Centre Device for controlling supply of a system with a fluid
US20120241022A1 (en) * 2011-03-27 2012-09-27 Yamada Manufacturing Co., Ltd. Relief valve device
DE102014212329A1 (de) 2014-06-26 2015-12-31 Robert Bosch Gmbh Ventileinrichtung
US20170016555A1 (en) * 2015-07-16 2017-01-19 Honeywell International Inc. Pneumatic mixing valve
EP3225799A1 (fr) * 2016-04-01 2017-10-04 HUSCO Automotive Holdings LLC Soupape de régulation de jet de refroidissement d'huile à commande pilote
WO2017174058A1 (fr) * 2016-04-07 2017-10-12 Schaeffler Technologies AG & Co. KG Dispositif servant au refroidissement d'un piston d'un moteur à combustion interne

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