CN106768662A - A kind of engine cylinder air-tightness detection machine that can realize automation docking - Google Patents

A kind of engine cylinder air-tightness detection machine that can realize automation docking Download PDF

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Publication number
CN106768662A
CN106768662A CN201710002580.1A CN201710002580A CN106768662A CN 106768662 A CN106768662 A CN 106768662A CN 201710002580 A CN201710002580 A CN 201710002580A CN 106768662 A CN106768662 A CN 106768662A
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CN
China
Prior art keywords
air
detection
leakage test
ventilation
seat
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CN201710002580.1A
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Chinese (zh)
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CN106768662B (en
Inventor
邓君
徐红娇
何楚亮
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东莞理工学院
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Publication of CN106768662B publication Critical patent/CN106768662B/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point

Abstract

The present invention relates to a kind of engine cylinder air-tightness detection machine that can realize automation docking,Air-leakage test seat is provided with frame,The bottom of air-leakage test seat is provided with the base support means coordinated with engine cylinder-body,Top is provided with air-leakage test lowering or hoisting gear,Sidepiece is provided with the sidepiece binding clasp coordinated with the engine cylinder-body in base support means,Air-leakage test lowering or hoisting gear lower section is connected with the air-tightness detection device coordinated with engine cylinder-body,Base support means include the bottom support block being arranged on air-leakage test seat,Sealed bottom block is provided with bottom support plate,The sealing hole with engine cylinder-body lower end interference fit is offered on sealed bottom block,The present invention can either be sealed to the bottom of engine cylinder-body,Engine cylinder-body can be positioned again,And then it can be made to realize accurate automatic butt with the detection means being arranged on air-leakage test lowering or hoisting gear,Improve the efficiency of detection and the precision of detection.

Description

A kind of engine cylinder air-tightness detection machine that can realize automation docking

Technical field

The present invention relates to the process equipment field of engine cylinder-body, more particularly to a kind of hair that can realize automation docking Motivation cylinder body air tightness detection machine.

Background technology

With the propulsion of industrialization degree, also more and more extensively, essential in engine is hair for the application of engine Motivation cylinder body, the cylinder body of engine needs to carry out air-leakage test to it after the process mostly.

Existing engine cylinder air-tightness detection is mostly carried out on airtightness test table, i.e., first by engine cylinder , be placed on engine cylinder-body on airtightness test table afterwards by the lower mouth good seal of body, then carries air-leakage detector again The closure of detection head is sealed with engine cylinder-body upper end, and engine is detected by air-leakage detector afterwards, is started Machine testing instrument causes the time of docking long mostly all using being docked manually, while the low precision of docking, easily influence To the air-leakage test precision of engine.

The content of the invention

It is an object of the invention to provide a kind of engine cylinder air-tightness detection machine that can realize automation docking, the bottom of at The sealed bottom block that setting is docked with engine cylinder-body lower end in portion's supporting plate, can either be carried out close to the bottom of engine cylinder-body Envelope, can position, and then can make it with the detection being arranged on air-leakage test lowering or hoisting gear to engine cylinder-body again Device realizes accurate automatic butt, improves the efficiency of detection and the precision of detection.

In order to realize the above object the technical solution adopted by the present invention is:It is a kind of to realize starting for automation docking Machine cylinder body air tightness detection machine, it includes frame (1) and distribution control box (2), and air-tightness inspection is provided with described frame (1) Survey mechanism (3), described air tightness detection mechanism (3) includes air-leakage test seat (6) that is arranged in frame (1), described Air-leakage test seat (6) bottom be provided with engine cylinder-body coordinate base support means (20), top be provided with it is airtight Property detection lowering or hoisting gear, sidepiece be provided with the sidepiece binding clasp (9) coordinated with the engine cylinder-body in base support means (20), Described air-leakage test lowering or hoisting gear lower section is connected with airtight with what the engine cylinder-body in base support means (20) coordinated Property detection means (13), described base support means (20) include the bottom support block that is arranged on air-leakage test seat (6) (7) sealed bottom block (8), is provided with described bottom support plate (7), is offered and hair on described sealed bottom block (8) The sealing hole of motivation cylinder body lower end interference fit, described air-leakage test lowering or hoisting gear, air-tightness detection device (13) and side Portion's binding clasp (9) is connected to distribution control box (2).

Further, described bottom support plate (7) is arranged on the supporting plate movable rail on air-leakage test seat (6) (14) on, described bottom support plate (7) bottom offers locking hole, and the bottom of locking hole is combined with supporting plate locking head (16), described supporting plate locking head (16) is connected with supporting plate locking cylinder (15), described supporting plate locking cylinder (15) It is connected to distribution control box (2).

Further, described air-leakage test lowering or hoisting gear includes the air-tightness being arranged on air-leakage test seat (6) Detection lift cylinder (10), the bottom of described air-leakage test lift cylinder (10) is connected with air-leakage test lifting seat (11) air-leakage test lifting guide pillar (12), and between air-leakage test lifting seat (11) and air-leakage test seat (6) is provided with, Described air-tightness detection device (12) is arranged on air-leakage test lifting seat (12) bottom, described air-leakage test cylinder (10) it is connected to distribution control box (2).

Further, described air-tightness detection device (13) is including being arranged on air-leakage test lifting seat (12) lower section simultaneously The sealing plate (18) coordinated with the engine cylinder-body in bottom support plate (7), detection head is provided with described sealing plate (18) Through the air-leakage detector (19) of sealing plate (18), the lower surface of described sealing plate (18) is soft encapsulant, described Air-leakage detector (19) be connected to distribution control box (2).

Further, described sealed bottom block (8) is bolted in bottom support plate (7), and described is airtight Property detection lifting seat (12) on be bolted the air-leakage test coordinated with air-leakage test lift cylinder (12) and lift Connecting seat (17).

Further, ventilation testing agency (4), described ventilation testing agency (4) are additionally provided with described frame (1) Including synchronized detection seat (21) being arranged in frame (1), the bottom of described ventilation detection seat (21) is provided with bottom support Device (20), sidepiece are provided with sidepiece binding clasp (9), top and are provided with ventilation detection lift cylinder (22), described ventilation inspection Survey and ventilation detection lifting seat (23) is connected with below lift cylinder (22), and ventilation detection lifting seat (23) and ventilation detection seat (21) ventilation detection lifting guide pillar (24) is provided between, described ventilation detects that lifting seat (23) lower section is provided with and bottom branch Ventilation head (25) that engine cylinder-body on support arrangement (20) coordinates, described ventilation head (25) is connected with ventilation pump, described Ventilation detection lift cylinder (22) and ventilation pump are connected to distribution control box (2).

Further, gas flowmeter, described gas flow are provided between described ventilation head (25) and ventilation pump Meter is connected to distribution control box (2).

Further, water filling detection is additionally provided between described ventilation testing agency (4) and air tightness detection mechanism (3) Seat (26), described water filling inspection detect including the water filling being arranged in frame (1) in mechanism (5), described water filling testing agency (5) Survey seat (26) bottom be provided with base support means (20), sidepiece be provided with sidepiece binding clasp (9), top be provided with water filling inspection Lift cylinder (27) is surveyed, the bottom of described water filling detection lift cylinder (27) is connected with water filling and detects lifting seat (28), described Water filling detection lifting seat (28) bottom be provided with base support means (20) engine cylinder-body coordinate injector (29), described injector (2) is connected with water injecting pump, and described water filling detects that lift cylinder (27) and water injecting pump are connected to distribution Control cabinet (2).

Further, described injector (29) is provided with fluid flowmeter and water injecting pump between, and fluid flowmeter is matched somebody with somebody Conjunction has time regulator, and described fluid flowmeter and time regulator is connected to distribution control box (2).

Beneficial effects of the present invention are:

1st, the sealed bottom block that setting is docked with engine cylinder-body lower end in bottom support plate, can either be to engine cylinder The bottom of body is sealed, and engine cylinder-body can be positioned again, and then can be made it and be arranged on air-leakage test liter Detection means on falling unit realizes accurate automatic butt, improves the efficiency of detection and the precision of detection.

2nd, the design of supporting plate movable rail, it is possible to achieve bottom support plate it is movable, and then can conveniently start The loading and unloading of machine cylinder body, while ensuring bottom support plate in air-leakage test by supporting plate locking cylinder and supporting plate locking head When position it is constant all the time, it is ensured that the quality of fit of each air-leakage test.

3rd, the simple structure of air-leakage test lowering or hoisting gear, easy to operate, and it is true to rise guide rod by air-leakage test It will not be partially dynamic to protect air-tightness detection device lifting activity, further ensure that the precision of docking.

4th, the smart structural design of air-tightness detection device, can ensure that sealing plate is outer with engine cylinder-body by pushing Portion realizes sealing, and then can form good sealing space, while the multiple cylinder body groups that can also be directed to multicylinder engine are carried out The air-leakage test of synchronous one, improves detection efficiency.

5th, the bolt secure fit air-leakage test of sealed bottom block lifts the design of connecting seat, can simultaneously change bottom The specification of sealing block and air-tightness detection device, can adapt to the engine cylinder-body detection of different size.

6th, the design of ventilation testing agency, can be with by whether have obvious gas leakage by the engine cylinder-body with larger space Exclude, and then reduce the number of times of air-leakage test.

7th, whether the design of gas flowmeter, can detect the situation for occurring blocking inside engine cylinder-body, can be right The cylinder body that inside blocks is rejected.

8th, the design of water filling testing agency, can be with by whether there is obvious leak unconspicuous with having ventilation to detect Crack is excluded, it is possible to achieve detection step by step.

9th, the matching design of fluid flowmeter and time regulator, inside Partial Blocking can be occurred but do not blocked understand shadow The engine operated cylinder body of sound is rejected.

Brief description of the drawings

Fig. 1 is a kind of schematic perspective view of the engine cylinder air-tightness detection machine that can realize automation docking.

The schematic perspective view of the air tightness detection mechanism that Fig. 2 is.

Fig. 3 is the schematic perspective view of base support means.

Fig. 4 is the schematic perspective view of air-tightness detection device.

Fig. 5 is the schematic perspective view of ventilation testing agency.

Fig. 6 is the schematic perspective view of water filling testing agency.

Label character is expressed as described in figure:1st, frame;2nd, distribution control box;3rd, air tightness detection mechanism;4th, ventilation inspection Survey mechanism;5th, water filling testing agency;6th, air-leakage test seat;7th, bottom support plate;8th, sealed bottom block;9th, sidepiece binding clasp; 10th, air-leakage test lift cylinder;11st, air-leakage test lifting seat;12nd, air-leakage test lifting guide pillar;13rd, air-leakage test Device;14th, supporting plate movable rail;15th, supporting plate locking cylinder;16th, supporting plate locking head;17th, air-leakage test lifting connects Joint chair;18th, sealing plate;19th, air-leakage detector;20th, base support means;21st, ventilation detection seat 22, ventilation detection lifting air Cylinder;23rd, ventilation detection lifting seat;24th, ventilation detection lifting guide pillar;25th, ventilation head;26th, water filling detection seat;27th, water filling detection Lift cylinder;28th, water filling detection lifting seat;29th, injector.

Specific embodiment

In order that those skilled in the art more fully understand technical scheme, the present invention is entered below in conjunction with the accompanying drawings Row is described in detail, and the description of this part is only exemplary and explanatory, should not there is any limitation to protection scope of the present invention Effect.

As shown in figs 1 to 6, concrete structure of the invention is:A kind of engine cylinder-body gas that can realize automation docking Close property detection machine, it includes frame 1 and distribution control box 2, air tightness detection mechanism 3 is provided with described frame 1, described Air tightness detection mechanism 3 includes the air-leakage test seat 6 being arranged in frame 1, and the bottom of described air-leakage test seat 6 is set Have with engine cylinder-body coordinate base support means 20, top be provided with air-leakage test lowering or hoisting gear, sidepiece be provided with The sidepiece binding clasp 9 that engine cylinder-body in base support means 20 coordinates, described air-leakage test lowering or hoisting gear lower section connects It is connected to the air-tightness detection device 13 coordinated with the engine cylinder-body in base support means 20, described base support means 20 Including the bottom support block 7 being arranged on air-leakage test seat 6, sealed bottom block 8 is provided with described bottom support plate 7, The sealing hole with engine cylinder-body lower end interference fit, described air-leakage test liter are offered on described sealed bottom block 8 Falling unit, air-tightness detection device 13 and sidepiece binding clasp 9 are connected to distribution control box 2.

Preferably, described bottom support plate 7 is arranged in the supporting plate movable rail 14 on air-leakage test seat 6, institute The bottom of bottom support plate 7 stated offers locking hole, and the bottom of locking hole is combined with supporting plate locking head 16, described support Plate locking head 16 is connected with supporting plate locking cylinder 15, and described supporting plate locking cylinder 15 is connected to distribution control box 2.

Preferably, described air-leakage test lowering or hoisting gear includes the air-leakage test being arranged on air-leakage test seat 6 Lift cylinder 10, the bottom of described air-leakage test lift cylinder 10 is connected with air-leakage test lifting seat 11, and air-tightness Air-leakage test lifting guide pillar 12, described air-leakage test dress are provided between detection lifting seat 11 and air-leakage test seat 6 Put 12 and be arranged on the bottom of air-leakage test lifting seat 12, described air-leakage test cylinder 10 is connected to distribution control box 2.

Preferably, described air-tightness detection device 13 includes being arranged on the lower section of air-leakage test lifting seat 12 and and bottom The sealing plate 18 that engine cylinder-body in supporting plate 7 coordinates, is provided with detection head through sealing plate 18 on described sealing plate 18 Air-leakage detector 19, the lower surface of described sealing plate 18 is soft encapsulant, and described air-leakage detector 19 connects It is connected to distribution control box 2.

Preferably, described sealed bottom block 8 is bolted in bottom support plate 7, described air-leakage test The air-leakage test coordinated with air-leakage test lift cylinder 12 is bolted on lifting seat 12 and lifts connecting seat 17.

Preferably, ventilation testing agency 4 is additionally provided with described frame 1, described ventilation testing agency 4 includes setting Synchronized detection seat 21 in frame 1, the bottom of described ventilation detection seat 21 is provided with the setting of base support means 20, sidepiece There is sidepiece binding clasp 9, top to be provided with ventilation detection lift cylinder 22, the lower section of described ventilation detection lift cylinder 22 connects Have and ventilation detection lifting guide pillar is provided between ventilation detection lifting seat 23, and ventilation detection lifting seat 23 and ventilation detection seat 21 24, the described lower section of ventilation detection lifting seat 23 is provided with the ventilation head coordinated with the engine cylinder-body in base support means 20 25, described ventilation first 25 is connected with ventilation pump, and described ventilation detection lift cylinder 22 and ventilation pump is connected to electric control Case 2.

Preferably, gas flowmeter is provided between described ventilation first 25 and ventilation pump, described gas flowmeter connects It is connected to distribution control box 2.

Preferably, water filling testing agency 5 is additionally provided between described ventilation testing agency 4 and air tightness detection mechanism 3, Described water filling testing agency 5 includes the water filling detection seat 26 being arranged in frame 1, and the bottom of described water filling detection seat 26 sets Be equipped with base support means 20, sidepiece be provided with sidepiece binding clasp 9, top be provided with water filling detection lift cylinder 27, it is described The bottom of water filling detection lift cylinder 27 is connected with water filling detection lifting seat 28, and the bottom of described water filling detection lifting seat 28 sets The injector 29 coordinated with the engine cylinder-body in base support means 20 is equipped with, described injector 2 is connected with water injecting pump, institute The water filling detection lift cylinder 27 and water injecting pump stated are connected to distribution control box 2.

Preferably, fluid flowmeter is provided between described injector 29 and water injecting pump, and fluid flowmeter is combined with Time regulator, described fluid flowmeter and time regulator is connected to distribution control box 2.

When specifically used, first engine cylinder-body to be detected is placed into the bottom support plate 7 of ventilation testing agency, it Afterwards by bottom support plate 7 toward pusher, and supporting plate locking head 16 is driven to enter bottom support plate 7 by supporting plate locking cylinder 15 Row positioning, is clamped by sidepiece binding clasp 9 afterwards, then drives ventilation first 25 to decline by detection lift cylinder 22 of ventilating And make ventilation first 25 toward ventilation in cylinder body, observation whether there is obvious gas leak phenomenon by pump of ventilating, while being examined by gas flowmeter Intake is measured, whether contrast cylinder body volume integral separates out the situation for having blocking, note is placed into if ventilation detection is qualified Water filling detection is carried out in water testing agency 5, detecting step is basically identical with ventilation detection, and obvious leak and stream are whether there is by observation Amount and whether whether matching detection goes out the time Partial Blocking, is placed into air tightness detection mechanism and is detected afterwards, passes through Same mode carries out feeding, drives air-tightness detection device 13 to match somebody with somebody with cylinder body by air-leakage test lift cylinder 10 afterwards Close, the bottom of sealing plate 18 is deformed upon the detection mouth for sealing cylinder body completely, cylinder body is entered by air-leakage detector 19 afterwards Row air-leakage test, removes cylinder body after completing detection.

It should be noted that herein, term " including ", "comprising" or its any other variant be intended to non-row His property is included, so that process, method, article or equipment including a series of key elements not only include those key elements, and And also include other key elements being not expressly set out, or also include for this process, method, article or equipment institute are intrinsic Key element.

Specific case used herein is set forth to principle of the invention and implementation method, the explanation of above example It is only intended to help and understands the method for the present invention and its core concept.The above is only the preferred embodiment of the present invention, should When pointing out due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for the common skill of the art For art personnel, under the premise without departing from the principles of the invention, some improvement, retouching or change can also be made, it is also possible to will Above-mentioned technical characteristic is combined by rights;These improve retouching, change or combine, or the not improved structure that will be invented Think and technical scheme directly applies to other occasions, be regarded as protection scope of the present invention.

Claims (9)

1. a kind of can to realize the engine cylinder air-tightness detection machine that automation is docked, it includes frame (1) and with electric control Case (2), it is characterised in that be provided with air tightness detection mechanism (3), described air tightness detection mechanism in described frame (1) (3) including air-leakage test seat (6) being arranged in frame (1), the bottom of described air-leakage test seat (6) is provided with and hair The base support means (20) of motivation cylinder body cooperation, top are provided with air-leakage test lowering or hoisting gear, sidepiece and are provided with and bottom The sidepiece binding clasp (9) that engine cylinder-body in support meanss (20) coordinates, described air-leakage test lowering or hoisting gear lower section connects It is connected to the air-tightness detection device (13) coordinated with the engine cylinder-body in base support means (20), described bottom support dress Putting (20) includes the bottom support block (7) being arranged on air-leakage test seat (6), is provided with described bottom support plate (7) Sealed bottom block (8), offers the sealing hole with engine cylinder-body lower end interference fit, institute on described sealed bottom block (8) Air-leakage test lowering or hoisting gear, air-tightness detection device (13) and the sidepiece binding clasp (9) stated are connected to distribution control box (2).
2. a kind of engine cylinder air-tightness detection machine that can realize automation docking according to claim 1, it is special Levy and be, described bottom support plate (7) is arranged in the supporting plate movable rail (14) on air-leakage test seat (6), described Bottom support plate (7) bottom offer locking hole, and the bottom of locking hole is combined with supporting plate locking head (16), described branch Fagging locking head (16) is connected with supporting plate locking cylinder (15), and described supporting plate locking cylinder (15) is connected to electric control Case (2).
3. a kind of engine cylinder air-tightness detection machine that can realize automation docking according to claim 1, it is special Levy and be, described air-leakage test lowering or hoisting gear includes the air-leakage test lifting air being arranged on air-leakage test seat (6) Cylinder (10), the bottom of described air-leakage test lift cylinder (10) is connected with air-leakage test lifting seat (11), and air-tightness Air-leakage test lifting guide pillar (12), described air-tightness are provided between detection lifting seat (11) and air-leakage test seat (6) Detection means (12) is arranged on air-leakage test lifting seat (12) bottom, and described air-leakage test cylinder (10) is connected to distribution Control cabinet (2).
4. a kind of engine cylinder air-tightness detection machine that can realize automation docking according to claim 3, it is special Levy and be, described air-tightness detection device (13) is including being arranged on air-leakage test lifting seat (12) lower section and being supported with bottom The sealing plate (18) that engine cylinder-body on plate (7) coordinates, is provided with detection head through sealing plate on described sealing plate (18) (18) air-leakage detector (19), the lower surface of described sealing plate (18) is soft encapsulant, described air-tightness inspection Survey instrument (19) and be connected to distribution control box (2).
5. a kind of engine cylinder air-tightness detection machine that can realize automation docking according to claim 4, it is special Levy and be, described sealed bottom block (8) is bolted in bottom support plate (7), described air-leakage test lifting The air-leakage test coordinated with air-leakage test lift cylinder (12) is bolted on seat (12) and lifts connecting seat (17).
6. a kind of engine cylinder air-tightness detection that can realize automation docking according to claim any one of 1-5 Machine, it is characterised in that ventilation testing agency (4), described ventilation testing agency (4) bag are additionally provided with described frame (1) Synchronized detection seat (21) being arranged in frame (1) is included, the bottom of described ventilation detection seat (21) is provided with bottom support dress Put (20), sidepiece and be provided with sidepiece binding clasp (9), top and be provided with ventilation detection lift cylinder (22), described ventilation detection Ventilation detection lifting seat (23), and ventilation detection lifting seat (23) and ventilation detection seat are connected with below lift cylinder (22) (21) ventilation detection lifting guide pillar (24) is provided between, described ventilation detects that lifting seat (23) lower section is provided with and bottom branch Ventilation head (25) that engine cylinder-body on support arrangement (20) coordinates, described ventilation head (25) is connected with ventilation pump, described Ventilation detection lift cylinder (22) and ventilation pump are connected to distribution control box (2).
7. a kind of engine cylinder air-tightness detection machine that can realize automation docking according to claim 6, it is special Levy and be, gas flowmeter is provided between described ventilation head (25) and ventilation pump, described gas flowmeter is connected to matches somebody with somebody Electric control box (2).
8. a kind of engine cylinder air-tightness detection machine that can realize automation docking according to claim 6, it is special Levy and be, water filling testing agency (5), institute are additionally provided between described ventilation testing agency (4) and air tightness detection mechanism (3) Seat (26) detects including the water filling being arranged in frame (1) in the water filling testing agency (5) for stating, and described water filling detects seat (26) Bottom be provided with base support means (20), sidepiece be provided with sidepiece binding clasp (9), top be provided with water filling detection lift cylinder (27) bottom of, described water filling detection lift cylinder (27) is connected with water filling and detects lifting seat (28), described water filling detection The bottom of lifting seat (28) is provided with the injector (29) coordinated with the engine cylinder-body in base support means (20), described Injector (2) is connected with water injecting pump, and described water filling detects that lift cylinder (27) and water injecting pump are connected to distribution control box (2).
9. a kind of engine cylinder air-tightness detection machine that can realize automation docking according to claim 8, it is special Levy and be, described injector (29) is provided with fluid flowmeter and water injecting pump between, and fluid flowmeter is combined with time note Record device, described fluid flowmeter and time regulator is connected to distribution control box (2).
CN201710002580.1A 2017-01-03 2017-01-03 A kind of engine cylinder air-tightness detection machine can be realized automatic docking CN106768662B (en)

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CN201710002580.1A CN106768662B (en) 2017-01-03 2017-01-03 A kind of engine cylinder air-tightness detection machine can be realized automatic docking
CN201811334730.XA CN109357815A (en) 2017-01-03 2017-01-03 A kind of engine cylinder body ventilation water filling detection machine
CN201811334720.6A CN109357821A (en) 2017-01-03 2017-01-03 A kind of aeration type engine cylinder body detection machine

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CN201811334720.6A Division CN109357821A (en) 2017-01-03 2017-01-03 A kind of aeration type engine cylinder body detection machine
CN201811334730.XA Division CN109357815A (en) 2017-01-03 2017-01-03 A kind of engine cylinder body ventilation water filling detection machine

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CN201811334720.6A CN109357821A (en) 2017-01-03 2017-01-03 A kind of aeration type engine cylinder body detection machine
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CN109000851A (en) * 2018-08-02 2018-12-14 天津市神驰汽车零部件有限公司 A kind of automobile exhaust pipe tightness detector
CN109341980A (en) * 2018-11-09 2019-02-15 襄阳市中康汽车配件有限公司 A kind of air tightness detecting device of engine cylinder head
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