CN110359974A - Hydraulic support element for a valve train of an internal combustion engine - Google Patents
Hydraulic support element for a valve train of an internal combustion engine Download PDFInfo
- Publication number
- CN110359974A CN110359974A CN201910265393.1A CN201910265393A CN110359974A CN 110359974 A CN110359974 A CN 110359974A CN 201910265393 A CN201910265393 A CN 201910265393A CN 110359974 A CN110359974 A CN 110359974A
- Authority
- CN
- China
- Prior art keywords
- shell
- pressure piston
- radial
- piston
- cylinder head
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 8
- 239000003595 mist Substances 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000003860 storage Methods 0.000 abstract description 8
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L2001/2433—Self contained, e.g. sealed hydraulic lash adjusters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Actuator (AREA)
Abstract
A hydraulic support element for a valve train of an internal combustion engine, which is seated in a cylinder head receiving bore via its housing, in which a pressure piston is guided with its circumferential side, which piston projects with its head over the housing edge, in which housing circumferential side a guide line for the introduction of a hydraulic medium into a piston reservoir is provided via an oil/oil mist injection collecting channel intersecting the cylinder head upper side, which collecting channel opens out at a section of the receiving bore side arranged at a low level into a radial passage in the housing, which radial passage is in fluid connection with a radial opening in the piston leading to its reservoir, in which cylinder head upper side is flat in the receiving bore inlet region and the receiving bore is simultaneously smooth-walled, stepless; two pre-storages for hydraulic medium are provided, wherein a first pre-storage is formed by the collecting channel and a second pre-storage is formed by an annular recess in the housing bore; the first pre-storage part is connected with the second pre-storage part through the radial through part, and the second pre-storage part is connected with the piston reserve chamber through the radial opening.
Description
Technical field
It is described hydraulic the present invention relates to a kind of hydraulic support element of no pressure oil interface for internal combustion valve mechanism
Support component is directly placed in the receiving hole of cylinder head via the peripheral side of its shell, and the opposite shell axial movement of energy
Pressure piston was directly guided in the hole of shell with its week side, which stretches out shell with its head for being used for support arm
The edge of body and the upside of cylinder head, wherein in axial direction under the bottom on the separate head of pressure piston, be used for hydraulic medium
Hyperbaric chamber be between the bottom and housing bottom or receiving hole bottom, via the check-valves at bottom, can live from by pressure
It fills in the reserve room crossed and supplies hydraulic medium to the hyperbaric chamber, wherein via the upside with cylinder head in the peripheral side of shell
Intersection gathers channel for spraying oil/mist of oil and is provided with the leading line led to hydraulic medium in the reserve room of pressure piston
Road, this gathers channel and is passed into the radial penetrating part of at least one of shell at the section of receiving hole side low position, institute
At least one radial opening towards its reserve room in radial penetrating part and pressure piston is stated in fluidly connecting.
Background technique
During advanced optimizing the pressure oil return line of internal combustion engine, in addition to keyword " reducing oil pump power " and " contracting
Except small oil pump ", it is also actively working to no longer be attached to the hydraulic pressure support member of the pressure oil return line of internal combustion engine for rocker arm valve mechanism
Part.Disposably after first filling, this class component make full use of the gas gated regions being only from cylinder head injection oil or
Mist of oil is for its supply.
10 2,014 214 383 A1 of DE, which has revealed that, a kind of is placed in cylinder head, no pressure oil interface support member
Part.For example, the element is protruded into the groove-shaped sunk portions of cylinder head in conjunction with shown in Fig. 4 and Fig. 1 with its head.The recessed portion is used as
Reserve room.As a result, hydraulic medium via two at the peripheral side of the shell of support component just it is opposite gather channel to
Under be further conveyed in the corresponding radial penetrating part in shell.
Verified, the recessed portion as needed for each element, the significant changes at already existing cylinder head are required
, this can increase the cost of internal combustion engine significantly in large-scale production.In addition, corresponding required recessed portion can unnecessarily be cut
Weak cylinder head simultaneously exists and the conflicting risk in channel in cylinder head.Further, it can be seen that (referring to fig. 2), due in shell
Radial penetrating part lower arrange and the radial opening in pressure piston is arranged higher, shown, pressure piston from
In the case where the position that shell removes (transport backstop), pre-filled reserve room in pressure piston until its radial opening it is following
Empty to edge.
Another support component without the supply of external pressure oil is had revealed that in 10 2,016 200 625 A1 of DE.Here, shell
Body is surrounded by the independent sleeve with oil storage room.Obviously, it is necessary to support component is changed in a manner of consuming, in particular for expansion
The receiving hole of big cylinder head.
Summary of the invention
The object of the present invention is to provide a kind of to be adapted to the hydraulic support element that no external pressure oil is supplied in cylinder head,
Without carrying out biggish modification to existing design scheme for this.
Reach above-mentioned purpose as follows according to the present invention: the upside of cylinder head is at least in the entrance area of receiving hole
It is flat and receiving hole while being light wall without rank；It is arranged there are two the pre-stored portion for being used for hydraulic medium, therein the
One pre-stored portion is formed by the channel of gathering in the peripheral side of shell as circular annular space, and the second pre-stored portion wants
It is formed by the annular recess in the hole of shell or is formed by the annular recess in all sides of pressure piston, wherein first
Pre-stored portion is connect via radial penetrating part with the second pre-stored portion and the second pre-stored portion is via radial opening and pressure
Reserve room connection in piston.
It thus provides a kind of be placed in cylinder head, no pressure oil interface support member without disadvantages mentioned above
Part.Here, applied support component so far can be maximally utilised in the case where changing cylinder head.In cylinder head
Originally the existing pressure oil passage towards corresponding support component still retains as blind vias.Based on almost unchanged branch
Support element on/in two pre-stored portions, realize to the inside of component import and there storage sufficient amount injection oil etc.,
To carry out defined clearance compensation.Supporting member can also be installed in the case where not changing its overall diameter or it is in gas
Receiving hole in cylinder cap can remain unchanged.
A kind of targeted improvement project according to the present invention, the pressure piston of support component is in its maximum outflow location
In should be kept by the stop mechanism as internal retainer ring/retaining ring.In the case, the radial opening of the pressure piston
(referring to dependent claims 3) under the radial penetrating part of high-order arrangement in shell, to prevent the height in support component
The outflow of hydraulic medium column, this for example it is first load and subsequent transport after be highly important.
In order to expand the volume in two pre-stored portions, can by be pre-stored radially around the two portion wall region or in which
One wall region is designed thinner.Alternatively, it is also possible to, slightly increase diameter of the receiving hole near its entrance area.
The measure of hydraulic medium accumulation in reserve room of the another kind for improving pressure piston is another appurtenance
It is required that theme.Accordingly, it is squeezed out during high pressure phase from hyperbaric chamber via the leakage-gap between pressure piston and shell
Hydraulic medium partial amount via low position steering opening directly return guide in reserve room.
In the case where the pressure piston of two-piece type, this opening that turns to can be located at the relative to each other of two axial sections
End side region in and be for example configured to one or more coronal perforation.
Detailed description of the invention
Illustrate the present invention in conjunction with attached drawing.Unique attached drawing 1 is shown in the case where not external pressure oil supply
The sectional side elevation of support component 1.
Specific embodiment
As can be seen that support component 1 is placed in the blind hole shape and light of cylinder head 5 via the peripheral side 2 of the shell 3 of its can-like
Wall is without in the receiving hole 4 of rank.The pressure piston 7 that can be axially moved was guided in the hole of shell 36 with its week side 8.The pressure is living
Plug stretches out the edge 9 of shell 3 with it and the head 16 of the flat upside 10 of stretches out cylinder lid 5 is used as the single-ended pivot of energy of rocker arm simultaneously
The dynamic supporting part of transhipment.Shell 3 can also be terminated with the upside 10 of cylinder head 5 or slightly lower be arranged with flushing.Therefore, its compared with
In the case where low orientation, other oily reservoir (seeing below) will be also showed.
In the axial direction under the bottom 11 on the separate head 16 of pressure piston 7, at the hyperbaric chamber 13 of hydraulic medium
Between the bottom 11 and housing bottom 12.Via the check-valves 14 at bottom 11, can be crossed by pressure piston 7 on its head 16
Reserve room 15 under to the hyperbaric chamber supply hydraulic medium.
Only " gather " the injection oil/mist of oil in the region on the upside of cylinder head 5 10 as hydraulic medium, the spray
Oil/mist of oil is penetrated then to flow under the influence of gravity into the reserve room 15 of pressure piston 7.For this purpose, in the peripheral side of shell 32, from
The channel 18 of gathering that its 9 departure place of top edge is provided with annular is used as the first pre-stored portion 22.Gather channel 18 in its lower curtate
It is in connection in 19 with the radial penetrating part 20 in shell 3.Hydraulic medium is further defeated downwards from radial penetrating part 20 (hole)
It is sent in the second pre-stored portion 23 of the annular in the hole 6 of shell 3.Second pre-stored portion 23 again be embodied as in pressure piston 7
For the radial opening 21 in hole in fluidly connecting, which is directly communicated to the reserve room 15 of pressure piston 7.
It is equipped in hyperbaric chamber 13 and releases spring 17.The release spring clip is in the bottom of pressure piston 7 11 and housing bottom
Between 12.In order to limit pressure piston 7 from the removal campaign (transportation insurance device) in shell 3, pressure piston 7, which has, to be placed in
The retaining ring in annular groove in its week side 8 is as stop mechanism 24.In backstop, the radial opening 21 of pressure piston 7
Lower than the radial penetrating part 20 in shell 2.
Pressure piston 7 is made of two independent components, that is, upper axial section 26 and lower axial section 27, these sections
26,27 is relative to each other with its end side 28,29.The steering opening 25 for hydraulic medium is furnished between end side 28,29.
Reference signs list
1 support component
2 peripheral sides
3 shells
4 receiving holes
5 cylinder head
6 holes
7 pressure pistons
8 weeks sides
9 edges
10 upsides
11 bottoms
12 housing bottoms
13 hyperbaric chambers
14 check-valves
15 reserve room
16 heads
17 release spring
18 gather channel
19 sections
20 radial penetrating parts
21 radial openings
22 first pre-stored portions
23 second pre-stored portions
24 stop mechanisms, retaining ring
25 turn to opening
26 lower axial sections
Axial section on 27
28 end sides
29 end sides
Claims (5)
1. for internal combustion valve mechanism no pressure oil interface hydraulic support element (1), the hydraulic support element via
The peripheral side (2) of its shell (3) is directly placed in the receiving hole (4) of cylinder head (5), and the opposite shell axial movement of energy
Pressure piston (7) is used to support with its week side (8) guidance, described pressure piston directly in the hole (6) of the shell with it
The edge (9) of the shell (3) and the upside (10) of the cylinder head (5) are stretched out in the head (16) of rocker arm, wherein in axial direction
Under the bottom (11) on the separate head of the pressure piston (7), the hyperbaric chamber (13) for hydraulic medium is in the bottom
It, can be from by the pressure via the check-valves (14) at the bottom (11) between housing bottom or receiving hole bottom (12)
Hydraulic medium is supplied in reserve room (15) hyperbaric chamber Xiang Suoshu that piston (7) crosses, wherein in the peripheral side (2) of the shell (3)
In gather channel (18) via what the upside (10) with the cylinder head (5) was intersected for spraying oil/mist of oil and be provided with liquid
Pressure medium leads to the guidance route in the reserve room (15) of the pressure piston (7), and the channel of gathering is in receiving hole side low level
It is passed at the section (19) of arrangement in the radial penetrating part (20) of at least one of described shell (3), the radial direction penetrating part
It is in at least one radial opening (21) towards its reserve room (15) in the pressure piston (7) in fluidly connecting,
It is characterized in that, the upside (10) of the cylinder head (5) is at least flat in the entrance area of the receiving hole (4) and institute
It states receiving hole (4) while being light wall without rank；It is arranged there are two the pre-stored portion (22,23) for being used for hydraulic medium, therein the
One pre-stored portion (22) as the shell (3) peripheral side (2) in as gathering channel (18) existing for circular annular space
It is formed, and the second pre-stored portion (23) is either formed or by the annular recess in the hole (6) of the shell (3) by the pressure
Annular recess in all sides (8) of piston (7) is formed, wherein the first pre-stored portion (22) is via the radial break-through
Portion (20) is connect with the described second pre-stored portion (23) and the second pre-stored portion is via the radial opening (21) and institute
State reserve room (15) connection in pressure piston (7).
2. support component according to claim 1, which is characterized in that be placed in the hyperbaric chamber (13) and other end branch
Support the bottom (11) that the release spring (17) on the housing bottom (12) acts on the pressure piston (7), wherein pass through
The stop mechanism (24) radially extended between pressure piston (7) and shell (3) limits the removal fortune of the pressure piston (7)
It is dynamic, so that the radial opening (21) of the pressure piston compares the shell in the maximum outflow location of the pressure piston (7)
Further from head for radial penetrating part (20) in body (3).
3. support component according to claim 1 or 2, which is characterized in that measured from the edge (9) of the shell (2), institute
State radial penetrating part (20) are not less than the length of the shell (2) 1/4.
4. support component according to claim 1, which is characterized in that be furnished in the pressure piston (7) for hydraulic
At least one extended radially through of medium turns to opening (25), at least one described steering opening is in the bottom (11) of pressure piston
Extend in axial section between radial opening (21).
5. support component according to claim 4, which is characterized in that the pressure piston (7) is by with bottom (11)
It lower axial section (26) and is constituted relative to the independent upper axial section (27) with head (16) of the lower axial section,
In, at least one described steering opening (25) is between the end side (28,29) relative to each other of section axially up and down.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018108287.8 | 2018-04-09 | ||
| DE102018108287.8A DE102018108287A1 (en) | 2018-04-09 | 2018-04-09 | Hydraulic support for a valve train of an internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110359974A true CN110359974A (en) | 2019-10-22 |
| CN110359974B CN110359974B (en) | 2022-08-19 |
Family
ID=67991799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910265393.1A Active CN110359974B (en) | 2018-04-09 | 2019-04-03 | Hydraulic support element for a valve train of an internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110359974B (en) |
| DE (1) | DE102018108287A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202023101104U1 (en) | 2023-03-09 | 2023-03-22 | Schaeffler Technologies AG & Co. KG | Hydraulic support element for a valve drive of an internal combustion engine |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010049324A1 (en) * | 2008-10-30 | 2010-05-06 | Schaeffler Technologies Gmbh & Co. Kg | Valve drive of an internal combustion engine having a support element that can be switched off |
| US20120167850A1 (en) * | 2009-09-08 | 2012-07-05 | Schaeffler Technologies AG & Co. KG | Assembly for a valve train of an internal combustion engine |
| DE102012200759A1 (en) * | 2012-01-19 | 2013-07-25 | Schaeffler Technologies AG & Co. KG | Valve operation system connected to internal combustion engine, has supporting elements which are provided with restricted side path over which hydraulic fluid in channel is guided to pressure chamber, in low pressure mode |
| DE102014214383A1 (en) * | 2014-07-23 | 2016-01-28 | Schaeffler Technologies AG & Co. KG | Hydraulic valve clearance compensation element for internal combustion engines |
| CN105431616A (en) * | 2013-08-13 | 2016-03-23 | 舍弗勒技术股份两合公司 | Hydraulic support element |
| DE102015221038A1 (en) * | 2015-02-11 | 2016-08-11 | Schaeffler Technologies AG & Co. KG | Supporting element for a valve train of an internal combustion engine |
| DE102015209336A1 (en) * | 2015-05-21 | 2016-11-24 | Schaeffler Technologies AG & Co. KG | Hydraulic compensation element for the valve train of an internal combustion engine |
| CN106471224A (en) * | 2014-06-26 | 2017-03-01 | 舍弗勒技术股份两合公司 | Supporting element |
| DE102016200625A1 (en) * | 2016-01-19 | 2017-07-20 | Schaeffler Technologies AG & Co. KG | Mounting sleeve for valve train support elements of an internal combustion engine |
-
2018
- 2018-04-09 DE DE102018108287.8A patent/DE102018108287A1/en active Pending
-
2019
- 2019-04-03 CN CN201910265393.1A patent/CN110359974B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010049324A1 (en) * | 2008-10-30 | 2010-05-06 | Schaeffler Technologies Gmbh & Co. Kg | Valve drive of an internal combustion engine having a support element that can be switched off |
| US20120167850A1 (en) * | 2009-09-08 | 2012-07-05 | Schaeffler Technologies AG & Co. KG | Assembly for a valve train of an internal combustion engine |
| DE102012200759A1 (en) * | 2012-01-19 | 2013-07-25 | Schaeffler Technologies AG & Co. KG | Valve operation system connected to internal combustion engine, has supporting elements which are provided with restricted side path over which hydraulic fluid in channel is guided to pressure chamber, in low pressure mode |
| CN105431616A (en) * | 2013-08-13 | 2016-03-23 | 舍弗勒技术股份两合公司 | Hydraulic support element |
| CN106471224A (en) * | 2014-06-26 | 2017-03-01 | 舍弗勒技术股份两合公司 | Supporting element |
| DE102014214383A1 (en) * | 2014-07-23 | 2016-01-28 | Schaeffler Technologies AG & Co. KG | Hydraulic valve clearance compensation element for internal combustion engines |
| DE102015221038A1 (en) * | 2015-02-11 | 2016-08-11 | Schaeffler Technologies AG & Co. KG | Supporting element for a valve train of an internal combustion engine |
| DE102015209336A1 (en) * | 2015-05-21 | 2016-11-24 | Schaeffler Technologies AG & Co. KG | Hydraulic compensation element for the valve train of an internal combustion engine |
| DE102016200625A1 (en) * | 2016-01-19 | 2017-07-20 | Schaeffler Technologies AG & Co. KG | Mounting sleeve for valve train support elements of an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018108287A1 (en) | 2019-10-10 |
| CN110359974B (en) | 2022-08-19 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240320 Address after: 1st Floor, Building 2, No. 1 Antuo Road, Anting Town, Jiading District, Shanghai Patentee after: SCHAEFFLER HOLDING(CHINA) Co.,Ltd. Country or region after: China Address before: German Herzogenaurach Patentee before: SCHAEFFLER TECHNOLOGIES AG & CO.KG Country or region before: Germany |
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