CN104131395A - Weft insertion pump for water jet loom - Google Patents
Weft insertion pump for water jet loom Download PDFInfo
- Publication number
- CN104131395A CN104131395A CN201410270289.9A CN201410270289A CN104131395A CN 104131395 A CN104131395 A CN 104131395A CN 201410270289 A CN201410270289 A CN 201410270289A CN 104131395 A CN104131395 A CN 104131395A
- Authority
- CN
- China
- Prior art keywords
- valve
- water
- reservoir chamber
- base part
- check valve
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
- D03D47/32—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by liquid jet
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/34—Handling the weft between bulk storage and weft-inserting means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
- F04B23/025—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir
- F04B23/028—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir the pump being mounted on top of the reservoir
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1002—Ball valves
- F04B53/101—Ball valves having means for limiting the opening height
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention relates to a weft insertion pump for a water jet loom. The weft insertion pump includes a pump housing, a water storage chamber forming cylinder, a plunger, discharge and suction ports, a water storage chamber, a discharge-side check valve, a suction-side check valve and a stop member. The suction-side check valve includes a valve body, a valve seat member having a valve surface and a stop member. The stop member is formed with a plurality of guide walls which are spaced at an angular interval and configured to slidably guide the valve body in an axial direction of the stop member. Communication passages are formed in a circumferential direction of the stop member between any two adjacent guide walls. An annular groove is formed in the valve seat member so as to surround and be continuously connected to the valve surface for providing fluid communication between the communication passages.
Description
Technical field
The present invention relates to spray for water the wefting insertion pump of loom.
Background technology
Water sprays loom and is equipped with wefting insertion pump.This wefting insertion pump has pump case, and pump case is formed with the cylinder that forms whole reservoir chamber, and piston is slidably received within this cylinder.Through pump case, be formed with and suck and discharge port, and be formed with reservoir chamber between suction and discharge port.The inside of the cylinder of reservoir chamber and formation reservoir chamber communicates with each other.Suction side check valve is placed between reservoir chamber and inhalation port, and discharge side check valve is placed in reservoir chamber and discharges between port.Inhalation port is connected in water tank by suction line, and discharge port is connected in diversion nozzle by discharge pipe.
When piston moves away reservoir chamber, reservoir chamber volume increases, to produce therein suction pressure.This generation kind of suction pressure, for attracting to be stored in the inhalation power of the water of water tank, impel suction side one-way valve opens in reservoir chamber, thereby the water being stored in water tank is attracted in reservoir chamber.Now, discharge side closed check valve, to stop the water in discharge pipe to be back in reservoir chamber.On the other hand, when piston moves towards reservoir chamber, be stored in water in reservoir chamber by piston pressurization.Therefore, suction side closed check valve, and discharge side one-way valve opens, and then, the water of the pressurization in reservoir chamber is supplied to Weft insertion nozzle by discharge pipe.The water that is supplied to Weft insertion nozzle sprays from Weft insertion nozzle, and weft yarn is introduced in warp thread shed open (warp shed) by water jet.
Referring to Fig. 8, water is shown and sprays the suction side check valve of wefting insertion pump in loom or discharge side check valve, suction side check valve 100A or discharge side check valve 100B comprise spherical valve body 101, disc valve base member 102 and cylindricality stop component 103.Valve base part 102 has valve seat 102E, on valve seat 102E, can settle valve body 101.Cylindricality stop component 103 has stop surfaces 103E, the displacement that stop surfaces 103E regulation valve body 101 starts from the valve seat 102E of valve base part 102.Valve base part 102 is installed on stop component 103, to close the opening of stop component 103.Suction passage 102A forms at heart place therein through valve base part 102.Valve seat 102E has along with the diameter reducing gradually away from valve body 101, and is formed by the conical surface that is connected in continuously suction passage 102A.
Referring to Fig. 9, stop component 103 has a plurality of wall 103A that lead, and leads wall 103A with certain angular interval interval, for the valve body 101 that guiding can be moved on the axial direction of stop component 103 slidably.On the circumferencial direction of stop component 103, any two adjacent leading, between wall 103A, form communicating passage 103B, and the water flow in suction passage 102A is by communicating passage 103B.
As shown in figure 10, when producing suction pressure in reservoir chamber 105, valve body 101 is moved into stop surfaces 103E and contacts, thereby allows the water in suction passage 102A to flow in communicating passage 103B by the space being formed between valve seat 102E and valve body 101.Due to the Wei little gap, space between valve seat 102E and valve body 101, therefore the flow velocity that flows through the water in this space from suction passage 102A increases and pours corresponding communicating passage 103B.In check valve 100A, 100B, current occur in the Z of region hardly, there be communicating passage 103B away from the corner of valve seat 102E, and in Fig. 9 with shade indication, therefore, water tends to rest in the Z of region and does not flow.
In communicating passage 103B, rest on the water in the Z of region and rest on significant flow velocity difference between region Z water around and cause shock wave.Any shock wave that is delivered to the end face that is exposed to communicating passage 103B of valve base part 102 impacts and causes that the worry of corrosion occurs the above-mentioned end face of valve base part 102.
At the disclosed water of above-mentioned Japanese Patent Application Publication No.2005-3034, spray in the check valve of the wefting insertion pump in loom, valve base part 102 is by making based on zirconic pottery of forming by HIP (high temperature insostatic pressing (HIP)) technique.By using this kind of valve base part 102 of making based on zirconic pottery forming by HIP technique, the corrosion of the above-mentioned end face of valve base part 102 is inhibited, to such an extent as to has increased the life-span of valve base part 102.
Yet the valve base part of making based on zirconic pottery 102 forming by HIP technique is expensive, therefore, increased the manufacturing cost of the wefting insertion pump that uses this kind of valve base part.
The present invention relates to be provided for the wefting insertion pump that water sprays loom, it suppresses the corrosion of the valve base part of suction side check valve by cheap structure.
Summary of the invention
According to the present invention, for the wefting insertion pump of water injection loom, comprise cylinder, piston, discharge and inhalation port, reservoir chamber, water tank, Weft insertion nozzle, discharge side check valve, suction side check valve and the stop component of pump case, formation reservoir chamber.The cylinder that forms reservoir chamber is placed in pump case.Piston is slidably received within the cylinder that forms reservoir chamber.Discharge and inhalation port are formed in pump case and are connected to Weft insertion nozzle and water tank.Reservoir chamber is formed on and sucks and discharge between port.Discharging side check valve is placed in reservoir chamber and discharges between port.Suction side check valve is placed between reservoir chamber and inhalation port.Suction side check valve comprise have spherical form valve body, there is the valve base part of valve surface and there is the stop component of cylindrical shape.Suction passage forms through valve base part.Stop component comprises stopping part, and this stopping part is configured to regulation valve body away from the displacement of the valve surface of valve base part.Stop component is formed with a plurality of walls of leading with certain angular interval interval.Lead wall and be configured to guide slidably valve body on the axial direction of stop component.Communicating passage is formed on any two adjacent leading between wall in the circumferential direction of stop component.Water flow from suction passage passes through communicating passage.Cannelure is formed in valve base part, so as around and be connected to continuously valve surface, for providing fluid to be communicated with between communicating passage.
The following explanation of the accompanying drawing of principle of the present invention is shown with way of example according to combination, and other aspects and advantages of the present invention will become apparent.
Accompanying drawing explanation
By reference to the following explanation of presently preferred embodiment and accompanying drawing, the present invention and object thereof and advantage can be understood best, in the accompanying drawings:
Fig. 1 sprays the schematic diagram of the weft inserting apparatus of loom for water, show wefting insertion pump according to a preferred embodiment of the invention;
Fig. 2 is the longitudinal section of the wefting insertion pump in Fig. 1;
Fig. 3 is the amplification sectional view of the suction side check valve of the wefting insertion pump in Fig. 1, and the valve body that shows suction side check valve is placed in the state on the valve seat of suction side check valve;
Fig. 4 is the top view of the suction side check valve of wefting insertion pump the Fig. 1 seeing from stop component one side;
Fig. 5 is the top view of the valve base part of the suction side check valve of wefting insertion pump the Fig. 1 seeing from valve seat one side;
Fig. 6 is the amplification sectional view of the suction side check valve of wefting insertion pump in Fig. 1, shows valve body and the isolated state of valve seat of suction side check valve;
Fig. 7 is according to the amplification sectional view of the suction side check valve of the wefting insertion pump for water injection loom of another preferred embodiment;
Fig. 8 is according to the sectional view of the suction side check valve of the wefting insertion pump for water injection loom of background technology and discharge side check valve;
Fig. 9 is according to the top view of the suction side check valve of the wefting insertion pump of background technology and discharge side check valve; And
Figure 10 is according to the sectional view of the suction side check valve of the wefting insertion pump of background technology, shows the valve body of suction side check valve and the isolated state of valve seat of suction side check valve.
The specific embodiment
Next with reference to Fig. 1, to Fig. 6, the weft inserting apparatus for water injection loom is according to a first advantageous embodiment of the invention described, referring to Fig. 1, reference number 10 represents to spray for water the weft inserting apparatus (being only called below " weft inserting apparatus ") of loom.Weft inserting apparatus 10 has wefting insertion pump 11.Wefting insertion pump 11 is connected in Weft insertion nozzle 13 by discharge pipe 12, and is connected in water tank 15 by suction line 14.Wefting insertion pump 11 absorbs water from water tank 15 by suction line 14, and the water of pumping is transported to discharge pipe 12.
Referring to Fig. 2, wefting insertion pump 11 has pump case 20 and is placed in the cylinder 21 of the formation reservoir chamber in pump case 20.Piston 22 is accommodated in the cylinder 21 that forms reservoir chamber slidably.Spring base 22A is arranged on around the cylinder 21 that forms reservoir chamber, and spring compressor 22B screws in pump case 20.Spring compressor 22B is fixed on pump case 20 by locking nut 22C.Spring base 22A has base portion 221A and spring compressor 22B also has base portion 221B, and helical spring 22D is placed between base portion 221A, the 221B of spring base 22A and spring compressor 22B.
Pump case 20 is formed with therein inhalation port 23 and discharges port 24.Between suction and discharge port 23 and 24, be formed with reservoir chamber 25.Reservoir chamber 25 and the internal communication that forms the cylinder 21 of reservoir chamber.Suction side check valve 30A is placed between reservoir chamber 25 and inhalation port 23, and discharge side check valve 30B is placed in reservoir chamber 25 and discharges between port 24.Inhalation port 23 is connected in water tank 15 by suction line 14, and discharge port 24 is connected in Weft insertion nozzle 13 by discharge pipe 12.
As shown in Figure 1, weft inserting apparatus comprises driving shaft 16, cam 17, cam lever 18, back shaft 18A, cam follower 18B and connecting rod 19.Cam 17 is fixedly mounted on the driving shaft 16 being driven by CD-ROM drive motor (not shown).Cam lever 18 is rotatably supported by the back shaft 18A be arrangeding in parallel with driving shaft 16.By cam follower 18B, cam lever 18 can contact or separate with cam 17.By the cam 17 that can rotate along direction of arrow R in Fig. 1 with CAV and the co-operating that is arranged on the helical spring 22D in wefting insertion pump 11, cam lever 18 can reciprocally swinging.The piston 22 of wefting insertion pump 11 is connected in cam lever 18 by connecting rod 19.Piston 22 and spring base 22A carry out integrally reciprocating motion by the reciprocating motion of cam lever 18.
When cam lever 18, the operation by cam 17 is when back shaft 18A is rotated counterclockwise as seen in Figure 1, and the spring force that the piston 22 of wefting insertion pump 11 and spring base 22A resist helical spring 22D in Fig. 2 is moved to the left.During Compress Spring 22D, piston 22 makes the water of predetermined volume pump into reservoir chamber 25 by suction line 14 from water tank 15 with being moved to the left of spring base 22A.When water is when water tank 15 pumps into reservoir chamber 25, suction side check valve 30A opens, and discharges side check valve 30B and close, to stop the water in discharge pipe 12 to be back in reservoir chamber 25.
Cam 17 has cam face 17A.When cam follower 18B moves through the maximum gauge position N of the cam face 17A shown in Fig. 1, cam follower 18B away from cam face 17A locate, and the propulsive force of piston 22 by helical spring 22D moves towards the direction of water in pressurization reservoir chamber 25.When the water in reservoir chamber 25 is pressurized to predeterminated level, suction side check valve 30A closes and discharges side check valve 30B and opens, thereby the pressure (hydraulic) water in reservoir chamber 25 is fed to Weft insertion nozzle 13 by discharge pipe 12.The water that is fed to Weft insertion nozzle 13 sprays from it, and weft yarn Y is introduced in warp thread shed open (not shown).When cam follower 18B is positioned to contact with cam face 17A or for the retainer (stop) 29 that regulates water to discharge volume, a water spraying cycle (it is the introducing time cycle of weft yarn Y) finishes.
Next the structure of suction side check valve will be described in detail, the structure of discharging side check valve 30B is roughly the same with suction side check valve 100A and discharge side check valve 100B with reference to background technology explanation of the present invention substantially, and therefore, the explanation of the discharge side check valve 30B in the preferred embodiment will be omitted.
Referring to Fig. 3, suction side check valve 30A comprises spherical valve body 31, valve base part 32 and stop component 33.Valve base part 32 is discoidal and has valve surface 32E, on valve surface 32E, can settle valve body 31.Stop component 33 be cylindricality and there is stop surfaces 33E, stop surfaces 33E regulation valve body 31 is away from the displacement of the valve surface 32E of valve base part 32.Stop surfaces 33E act as stopping part of the present invention.Valve base part 32 is installed to stop component 33, to close the opening of stop component 33.Suction passage 32A forms at heart place therein through valve seat 32.The valve surface 32E of valve base part 32 has along with the diameter reducing gradually away from valve body 31, and is formed by the conical surface that is connected in continuously suction passage 32A.
Referring to Fig. 4, stop component 33 is formed with a plurality of wall 33A (being 3 in the preferred embodiment) that lead on side face within it, leads wall 33A with certain angular interval interval and on the axial direction of stop component 33, guides slidably valve body 31.On the circumferencial direction of stop component 33, in any two adjacent leading between wall 33A, form communicating passage 33B, water flows through communicating passage 33B from suction passage 32A.Hole 331E is axially formed on stop surfaces 33E center.
Referring to Fig. 5, in valve base part 32, be formed with cannelure 32B so as around and be connected in continuously valve surface 32E, for providing fluid to be communicated with between communicating passage 33B.Cannelure 32B has outer peripheral edges 321B, and each communicating passage 33B has outer peripheral edges 331B.Outer peripheral edges 321B and 331B are continuous each other on the axial direction of stop component 33.The cannelure 32B that permission is caused by the tolerance of cannelure 32B and communicating passage 33B and the deviation between communicating passage 33B.
Next by the operation of wefting insertion pump in the weft inserting apparatus 10 of explanation the preferred embodiment of the present invention.As shown in Figure 2, when the spring base 22A by piston 22 and suction side check valve 30A to left movement, in reservoir chamber 25, produce suction pressure time, valve body 31 is shifted as shown in fig. 6 into the stop surfaces 33E of stop component 33 and contacts.Therefore the water, being present in the space between valve body 31 and stop surfaces 33E flows in reservoir chamber 25 by hole 331E.So the water that is present in check valve 30A upstream, suction side is inhaled in communicating passage 33B by the space between suction passage 32A and valve surface 32E and valve body 31.
Due to the Shi little gap, space between valve surface 32E and valve body 31, therefore flow, through the flow velocity that passes the water in this space, increase and pour in corresponding communicating passage 33B.If valve base part 32 does not have cannelure 32B, current are difficult to occur in the Z of region, region Z be communicating passage 33B away from the corner of valve seat 32E, and in Fig. 4 with shade indication, therefore, water tendency rests in the Z of region.
In the check valve 30A of suction side, water flows to communicating passage 33B from valve surface 32E through cannelure 32B, and also from leading wall 33A, flow to communicating passage 33B, to stop water to rest in the Z of region, and be inhibited owing to resting in water in the Z of region and communicating passage 33B at the region Z shock wave that around larger difference between the flow velocity of mobile water causes.The corrosion of this end face therefore, being caused by the shock wave that is passed to the end face in the face of communicating passage 33B of valve base part 32 is stoped.
The preferred embodiment provides following beneficial effect.
(1) cannelure 32B is formed in the valve base part 32 of suction side check valve 30A, so as around and be connected in continuously valve surface 32E, for providing fluid to be communicated with between communicating passage 33B.In this kind of structure of suction side check valve 30A, water flows to communicating passage 33B from valve surface 32E through cannelure 32B, and also from leading wall 33A, flow to communicating passage 33B, to stop water to rest in the Z of region, and by resting on water in the Z of region and being inhibited at the region Z shock wave that around larger difference between the flow velocity of mobile water causes.The corrosion of this end face therefore, being caused by the shock wave that is passed to the end face in the face of communicating passage 33B of valve base part 32 can be inhibited.According to embodiments of the invention, valve base part 32 need to not made the corrosion with check valve base member 32 based on zirconic pottery by what form by HIP (high temperature insostatic pressing (HIP)) technique, but the corrosion that can realize by cheap structure the valve base part 32 of suction side check valve 30A suppresses.
(2) the outer peripheral edges 331B of the outer peripheral edges 321B of cannelure 32B and communicating passage 33B is continuous each other on the axial direction of stop component 33.Not continuous with it if the outer peripheral edges 321B of cannelure 32B is positioned at the outer peripheral edges 331B inner side of communicating passage 33B, between cannelure 32B and communicating passage 33B, form ladder, and therefore, existence produces the worry of air pocket in communicating passage 33B.At the outer peripheral edges 321B of cannelure 32B and the outer peripheral edges 331B of communicating passage 33B in the situation that continuous each other on the axial direction of stop component 33, between cannelure 32B and communicating passage 33B, do not form ladder, therefore can stop air pocket that the corrosion of the valve base part 32 of suction side check valve 30A occurs and can easily suppress.
(3) cannelure 32B is formed in valve base part 32, so that around valve surface 32E and be connected to continuously valve surface 32E, for the connection between communicating passage 33B.If on stop component 33, lead wall 33A in the face of the end of valve base part 32 forms depression, in stop component 33, depression is connected to the position of leading wall 33A and communicating passage 33B surface and easily forms burr, and exists burr to cause the worry of air pocket.Because valve base part 32 is less than the complicated part of leading wall 33A and communicating passage 33B such as stop component 33, therefore cannelure 32B being arranged so that in valve base part 32 can not caused air pocket because of any burr in valve base part 32.
Above preferred embodiment can be revised as follows.
Referring to Fig. 7 that alternative is shown, cannelure 32B can be by providing annular element 40 to form between valve base part 32 and stop component 33.In such cases, can in the situation that not processing valve base part 32, form cannelure 32B.
The outer peripheral edges 321B of cannelure 32B can form in inner side or the outside of the outer peripheral edges 331B of communicating passage 33B.That is, the outer peripheral edges 331B of the outer peripheral edges 321B of cannelure 32B and stop component 33 can be not continuous each other on the axial direction of stop component 33.
According to the present invention, specifically do not limit the quantity of leading wall 33A and communicating passage 33B.
Claims (3)
1. a wefting insertion pump (11) that sprays loom for water, comprising:
Pump case (20);
The cylinder (21) that forms reservoir chamber, it is placed in described pump case (20);
Piston (22), it is slidably received within the cylinder (21) of described formation reservoir chamber;
Discharge port (24), it is formed in described pump case (20) and is connected in Weft insertion nozzle (13);
Inhalation port (23), it is formed in described pump case (20) and is connected in water tank (15);
Reservoir chamber (25), it is formed between described inhalation port (23) and described discharge port (24);
Discharge side check valve (30B), it is placed between described reservoir chamber (25) and described discharge port (24); With
Suction side check valve (30A), it is placed between described reservoir chamber (25) and described inhalation port (23), and described suction side check valve (30A) comprising:
Valve body (31), it has spherical form;
Valve base part (32), it has valve surface (32E), and suction passage (32A) forms through described valve base part (32); With
Stop component (33), it has cylindricality profile, and comprise stopping part (33E), described stopping part (33E) is configured to regulate described valve body (31) away from the displacement of the valve surface (32E) of described valve base part (32), described stop component (33) is formed with a plurality of walls (33A) of leading of angular spacing at certain intervals, the described wall (33A) of leading is configured to guide slidably described valve body (31) on the axial direction of described stop component (33), in the circumferential direction of described stop component (33), any two are adjacent leads and between wall (33A), forms communicating passage (33B), water flows through described communicating passage (33B) from described suction passage (32A),
It is characterized in that, cannelure (32B) is formed in described valve base part (32), so as around and be connected to continuously described valve surface (32E), for providing fluid to be communicated with between described communicating passage (33B).
2. the wefting insertion pump (11) that sprays loom for water according to claim 1, it is characterized in that, described cannelure (32B) has outer peripheral edges (321B), and each communicating passage (33B) has outer peripheral edges (331B), the outer peripheral edges (321B) of described cannelure (32B) are continuous each other on the axial direction of described stop component (33) with the outer peripheral edges (331B) of described communicating passage (33B).
3. the wefting insertion pump (11) that sprays loom for water according to claim 1 and 2, it is characterized in that, described cannelure (32B) forms by annular element (40) being set between described valve base part (32) and described stop component (33).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-093906 | 2013-04-26 | ||
| JP2013093906A JP2014214402A (en) | 2013-04-26 | 2013-04-26 | Weft inserting pump of water jet loom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104131395A true CN104131395A (en) | 2014-11-05 |
Family
ID=51789396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410270289.9A Pending CN104131395A (en) | 2013-04-26 | 2014-04-25 | Weft insertion pump for water jet loom |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20140322052A1 (en) |
| JP (1) | JP2014214402A (en) |
| KR (1) | KR20140128249A (en) |
| CN (1) | CN104131395A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000002350A (en) * | 1998-06-17 | 2000-01-07 | Tsudakoma Corp | Check valve |
| CN1424448A (en) * | 2001-12-05 | 2003-06-18 | 株式会社丰田自动织机 | Water injector of water jet looms |
| JP2005003034A (en) * | 2003-06-10 | 2005-01-06 | Tsudakoma Corp | Check valve |
| CN101328872A (en) * | 2007-06-21 | 2008-12-24 | 株式会社丰田自动织机 | Picking pump of water jet loom |
| CN102140723A (en) * | 2010-02-01 | 2011-08-03 | 株式会社丰田自动织机 | Water jet device of water jet loom |
-
2013
- 2013-04-26 JP JP2013093906A patent/JP2014214402A/en active Pending
-
2014
- 2014-04-22 US US14/258,577 patent/US20140322052A1/en not_active Abandoned
- 2014-04-23 KR KR20140048612A patent/KR20140128249A/en not_active Application Discontinuation
- 2014-04-25 CN CN201410270289.9A patent/CN104131395A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000002350A (en) * | 1998-06-17 | 2000-01-07 | Tsudakoma Corp | Check valve |
| CN1424448A (en) * | 2001-12-05 | 2003-06-18 | 株式会社丰田自动织机 | Water injector of water jet looms |
| JP2005003034A (en) * | 2003-06-10 | 2005-01-06 | Tsudakoma Corp | Check valve |
| CN101328872A (en) * | 2007-06-21 | 2008-12-24 | 株式会社丰田自动织机 | Picking pump of water jet loom |
| CN102140723A (en) * | 2010-02-01 | 2011-08-03 | 株式会社丰田自动织机 | Water jet device of water jet loom |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140322052A1 (en) | 2014-10-30 |
| KR20140128249A (en) | 2014-11-05 |
| JP2014214402A (en) | 2014-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101868614B (en) | Safety valve and high-pressure pump comprising the safety valve | |
| JP2006200407A (en) | High pressure pump | |
| CN103261684A (en) | High-pressure pump | |
| KR101400580B1 (en) | Injection Device for Fuel Injectiojn Pump | |
| KR101526375B1 (en) | High pressure fuel pump integrally provided with discharge valve and pressure relief valve | |
| CN102654093B (en) | Pumping head | |
| CN104131395A (en) | Weft insertion pump for water jet loom | |
| KR101402710B1 (en) | Hydraulic pump for electronic control brake system | |
| CN102261553A (en) | Plunger-type lubricating grease pump | |
| KR101373353B1 (en) | Injection Device for Fuel Injection Pump | |
| CN109196214B (en) | Fuel pump | |
| JP5280721B2 (en) | Reciprocating pump with automatic degassing mechanism | |
| WO2015169621A1 (en) | High-pressure pump for feeding fuel to an internal combustion engine | |
| KR101787591B1 (en) | High-pressure Fuel Pump for Gasoline Engine | |
| KR102254868B1 (en) | Pulsation Reduction Device of Pump Using Air Damper | |
| JP5462680B2 (en) | Single cylinder diesel engine | |
| CN108071535A (en) | Fuel feed pump | |
| JP4840376B2 (en) | Fuel supply device | |
| US10088057B2 (en) | Under vane valve piston structure | |
| JP2009091955A (en) | Supply pump | |
| JP6428361B2 (en) | pump | |
| CN111692030A (en) | High-pressure fuel pump capable of suppressing air intake | |
| JP2023004462A (en) | Electronic control fuel injection device | |
| JP2008291851A (en) | Fuel introducing method for high-pressure pump | |
| JP2010190107A (en) | High-pressure pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141105 |