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
  • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
  • F16K5/08—Details
  • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
  • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
  • F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
• • 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
  • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
  • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
  • F16K5/0663—Packings
  • F16K5/0689—Packings between housing and plug
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
  • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
  • F01P7/00—Controlling of coolant flow
  • F01P7/14—Controlling of coolant flow the coolant being liquid
  • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves

Definitions

• the invention relates to a connecting piece of a thermal management module of an internal combustion engine, which is insertable into a receiving bore of a housing of the thermal management module, wherein a sealing ring of the connecting piece by means of a compression spring element is biased against a rotary valve.
• the invention also relates to a thermal management module for a cooling circuit of an internal combustion engine having a housing and a rotary valve rotatably mounted therein, wherein at least one coolant connection with a connecting piece is arranged on the housing, and wherein the coolant flow can be controlled via the coolant connection by means of the rotary valve.
• a thermal management module With a thermal management module, the operating temperature of an internal combustion engine can be precisely controlled in an optimal temperature window. Thus, for example, the cold running phase of the internal combustion engine can be significantly shortened over an open short circuit, or the operating temperature of the internal combustion engine can be limited to a maximum value.
• a corresponding thermal management module has a rotary valve rotatably disposed in its housing, with which a mixing ratio of the coolant between the two cooling circuits can be set as a function of a predetermined coolant temperature.
• a thermal management module with a connecting piece of the aforementioned type is known from DE 10 2014 206 529 A1.
• the connecting piece When inserting the connecting piece into the housing of the heat management module, it must be ensured with great installation and testing effort that the sealing ring prestressed by the pressure spring element in the direction of the rotary valve is positioned with sufficient accuracy on the rotary valve.
• An inventive connecting piece of a thermal management module for the cooling circuit of an internal combustion engine can be inserted into a receiving bore of a housing of the thermal management module, wherein a sealing ring of the connecting piece by means of a compression spring element against a rotary valve of the thermal management module is prestressed.
• the connecting piece should be provided with a stop which limits the longitudinal movement of the sealing ring in the direction of the rotary valve.
• the connecting piece according to the invention with the compression spring element and the axially biased against the stop sealing ring is a captive mounting unit.
• a holding element can be fixed to the connecting piece, from which a radial projection forming the stop extends, which engages behind a portion of the sealing ring.
• the holding element may be a retaining bush, which is fixed to a projection extending in the axial direction or in a recess of the connecting piece.
• the projection may be provided with a mating surface, with the the connection piece guided in the receiving bore of the housing and ggfls. is pressed into it.
• the radial projection of the retaining bush may be formed as an at least partially circumferential first collar, which has radially inwardly and engages behind the portion of the sealing ring.
• the portion of the sealing ring is designed as a radially outwardly facing second collar.
• the retaining bush can be made of metal or plastic.
• the connecting piece may have a hollow cylindrical neck portion and a radially outwardly facing flange formed therewith, wherein as a projection of the flange extending with a radial distance to the outer surface of the nozzle portion sleeve extends and wherein the retaining sleeve is mounted on this sleeve.
• the compression spring element is first pushed over the connecting piece section as far as contact with the flange. Subsequently, the sealing ring is mounted together with a groove ring received therein on the nozzle section. After a radial sealing element is pushed onto the sleeve, the retaining bush is finally fastened to the sleeve, preferably by means of a press fit.
• the entire connecting piece is pre-assembled and only needs to be inserted into the receiving bore.
• the sealing ring is preferably made of a thermoplastic material in order to create a reliable and completely sealing to the circumference of the rotary valve can. It is also possible to produce only the cooperating with the rotary valve end portion of the sealing ring of a thermoplastic material, while the remaining area consists of a different material.
• the first collar of the retaining sleeve must be positioned axially when they are mounted on the connecting piece so that the sealing ring is lifted after mounting the connecting piece in the housing of the rotary valve and lifts against the force of the compression spring element from the stop.
• the groove ring received in an annular recess of the sealing ring has the effect that the tightness of the connecting piece is secured independently of the respective relative position of the sealing ring relative to the connecting piece section.
• the groove ring may be made of an elastomeric material and have a sealing lip abutting the outer casing of the nozzle section.
• the end of the compression spring element can rest directly on the grooved ring or on both the sealing ring and the grooved ring.
• the compression spring element is an annular wave spring or alternatively a helical spring or a plate spring package.
• a thermal management module for a cooling circuit of an internal combustion engine has a housing and at least one rotary slide rotatably mounted therein, wherein at least one coolant connection with a connecting piece according to the invention is arranged on the housing.
• the rotary valve By means of the rotary valve, the amount of coolant flowing in or out via the respective connecting piece can be controlled.
• Figure 1 shows a longitudinal section through a thermal management module with a rotary valve and an inventively designed connecting piece
• FIG. 1 shows a heat management module 1 for the control of coolant flow of an internal combustion engine, not shown.
• the thermal management module 1 has a housing 2, in which a rotary valve 3 is rotatably mounted with a spherical outer contour.
• the rotary valve 3 is rotated about its longitudinal axis by means of a drive unit 4 and has a control opening 5 which, depending on the position of the rotary valve 3, establishes the connection between a coolant connection 6 and a coolant connection 7. If the rotary valve 3 is rotated out of the illustrated blocking position by 90 °, then the coolant connections 6, 7 communicate with one another via the control opening 5.
• the coolant connection 7 is formed by a connecting piece 8, which is inserted into a receiving bore 9 of the housing 2.
• the connecting piece 8 has a hollow cylindrical neck portion 10 and a radially outwardly facing flange 1 1, with which the connecting piece 8 is flanged onto the housing 2 and, if necessary, is screwed.
• the connecting piece 8 is pressed with a cylindrical mating surface 12 in the receiving bore 9 and receives a compression spring element 13 which surrounds the nozzle portion 10 as an annular corrugated spring and is supported with its first end 14 on a rotary valve 3 facing end face 15 of the flanges 1 1.
• the connecting piece 8 comprises a sealing ring 16 which is guided longitudinally displaceably on the outer jacket of the nozzle section 10 and which is prestressed in the direction of the rotary slide 3 by means of the compression spring element 13 and is sealingly brought into contact with its outer contour.
• the compression spring element 13 bears with its second end 17 against a groove ring 18 received within the sealing ring 16.
• the connecting piece 8 further comprises a sleeve 19 extending at a radial distance from the outer shell of the nozzle section 10 and the receiving bore 9, which extends from the end face 15 of the flanges 1 1.
• a retaining sleeve 20 is fixed, which encloses the sleeve 19 by means of a press fit and at its the rotary valve 3 end portion facing a radially inward, circumferential first collar 21 has.
• a radial sealing element 22, here an O-ring which surrounds the sleeve 19 and sealingly abuts in the receiving bore 9.
• the sealing ring 16 has a cylindrical recess 16a for the grooved ring 18, a radially outwardly pointing second collar 23 and an axially directed sealing lip 16b for sealing engagement with the rotary valve 3.
• the first collar 21 of the retaining sleeve 20 engages behind the second collar 23 of the sealing ring 16, wherein the abutting collar 21 and 23 form an axial stop 24 which limits the axial movement of the sealing ring 16 in the direction of the rotary valve 3.
• the axial stroke of the sealing ring 16 to the stop position can be adjusted in the preassembly of the connecting piece 8 by the axial Aufpressproof the retaining sleeve 20 on the sleeve 19.
• the connecting piece 8 is shown in the preassembled state before it is inserted into the receiving bore 9 of the housing 2.
• the compression spring element 13 which presses on the sealing ring 16, would push it from the hollow cylindrical neck portion 10, if not the stop 24 would limit the axial outward movement of the sealing ring 16.
• the sealing ring 16 is in Figure 1 on the circumference of the rotary valve 3, wherein the collar 23 and the collar 21 are axially spaced.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Temperature-Responsive Valves (AREA)
• Taps Or Cocks (AREA)
• Multiple-Way Valves (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=58162411

Family Applications (1)

Country Status (6)

Families Citing this family (13)

Family Cites Families (30)

• 2016
  • 2016-02-26 DE DE102016203070.1A patent/DE102016203070B3/de active Active
• 2017
  • 2017-02-03 EP EP17707160.2A patent/EP3420255A1/de not_active Withdrawn
  • 2017-02-03 WO PCT/DE2017/100073 patent/WO2017144047A1/de unknown
  • 2017-02-03 US US16/080,081 patent/US10865888B2/en active Active
  • 2017-02-03 CN CN201780012602.0A patent/CN108700205B/zh active Active
  • 2017-02-03 KR KR1020187024424A patent/KR20180119577A/ko not_active Application Discontinuation

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