US20020023686A1 - Drain pipe for draining water or the like from casing - Google Patents
Drain pipe for draining water or the like from casing Download PDFInfo
- Publication number
- US20020023686A1 US20020023686A1 US09/940,648 US94064801A US2002023686A1 US 20020023686 A1 US20020023686 A1 US 20020023686A1 US 94064801 A US94064801 A US 94064801A US 2002023686 A1 US2002023686 A1 US 2002023686A1
- Authority
- US
- United States
- Prior art keywords
- drain pipe
- water
- water outlet
- outlet openings
- wall
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
- F16L9/19—Multi-channel pipes or pipe assemblies
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/22—Pipes composed of a plurality of segments
Definitions
- the present invention relates to a drain pipe for draining water or the like accumulated in a casing of, for example, a starting motor (starter) of a vehicle engine.
- Water will be applied to a drain pipe connected, for example, to a bottom side of a casing of a starting motor of a vehicle engine when water is thrown off to the drain pipe by a tire of the vehicle that passes through a puddle of rain water (hereinafter referred to as a first case) or when water of relatively high pressure is applied to the drain pipe during car washing (hereinafter referred to as a second case).
- a first case water is thrown off to the drain pipe by a tire of the vehicle that passes through a puddle of rain water
- a second case water of relatively high pressure is applied to the drain pipe during car washing
- the water is generally applied to a lateral side of the drain pipe since the vehicle generally runs in one direction when it passes through the puddle of rain water.
- the water can be mainly applied to an upper side and a lower side of the drain pipe.
- the water applied toward the upper side of the drain pipe is substantially shielded by the casing and thereby loses its pressure.
- it is only required to deal with the water applied to the lower side of the drain pipe.
- a drain pipe having a couple of water outlet openings is disclosed.
- the outlet openings are provided at a lower end part of the drain pipe and extend laterally away from each other.
- the interior space forms a labyrinth that communicates a water inlet opening located at its upper end portion with the water outlet openings located at its lower end portion.
- a drain pipe connected to a drain hole of a casing.
- the drain pipe includes a water inlet opening, a plurality of water outlet openings, a cylindrical outer wall and a partition wall.
- the water inlet opening is arranged at an upper end part of the drain pipe and is communicated to an internal space of the casing.
- the water outlet openings are arranged at a lower end part of the drain pipe and extend laterally of the drain pipe in different directions.
- the cylindrical outer wall is arranged at an intermediate part of the drain pipe.
- the cylindrical outer wall defines an interior space therein. The interior space communicates the water inlet opening with the water outlet openings.
- the partition wall is provided within the interior space of the cylindrical outer wall to divide at least a portion of the interior space of the cylindrical outer wall into a plurality of compartments.
- Each one of the plurality of water outlet openings is provided to each corresponding one of the plurality of compartments.
- FIG. 1 is a partial cross-sectional view showing arrangement of a drain pipe according to a first embodiment of the present invention
- FIG. 2 is a longitudinal cross-sectional view of the drain pipe according to the first embodiment
- FIG. 3 is a cross-sectional view along line III-III in FIG. 2;
- FIG. 4 is a cross-sectional view along line IV-IV in FIG. 2;
- FIG. 5 is a cross-sectional view along line V-V in FIG. 2;
- FIG. 6 is a cross-sectional view similar to FIG. 3, showing a first modification of the first embodiment
- FIG. 7 is a longitudinal cross-sectional view showing a second modification of the first embodiment
- FIG. 8 is a cross-sectional view along line VIII-VIII in FIG. 7;
- FIG. 9 is a longitudinal cross-sectional view showing a drain pipe according to a second embodiment.
- a drain pipe P for draining water or the like is connected to a drain hole H of a casing C that constitutes a motor rear end part of a starter S of a vehicle.
- the drain pipe P includes a connecting member 1 made of a plastic material and a main body member 2 made of a rubber material.
- the connecting member 1 includes a pair of claws 11 at its upper end and a flange 12 at its lower end.
- the claws 11 extend in opposite directions, respectively, and the flange 12 is formed as an annular disk.
- the connecting member 1 sealingly connects an engaging portion 8 arranged at an upper end of the main body member 2 to an outer wall surface of the casing C.
- the drain pipe P of the present embodiment includes a water inlet opening 10 at its upper end part 3 and a couple of water outlet openings 20 at its lower end part 5 .
- the water inlet opening 10 is communicated to an internal space of the casing C (FIG. 1).
- the water outlet openings 20 face away from each other and extend laterally outwardly of the drain pipe P.
- the drain pipe P further includes a cylindrical outer wall 6 at its intermediate part 4 and a partition wall 7 received within the cylindrical wall 6 .
- the cylindrical outer wall 6 defines an interior space 100 therein.
- the interior space 100 communicates the water inlet opening 10 with the water outlet openings 20 .
- the interior space 100 is partially divided into two compartments by the partition wall 7 that axially extends in the interior space 100 from an axial intermediate point of the interior space 100 to a base end of the drain pipe P.
- Each one of the water outlet openings 20 is provided for each corresponding one of the compartments of the interior space 100 and faces in a lateral direction that is opposite from that of the other water outlet opening 20 .
- the partition wall 7 has a baffle board 71 at its upper end.
- the baffle board 71 extends laterally outwardly on both sides of the partition wall 7 in an upper end part of the interior space 100 .
- FIG. 3 which is a cross-sectional view along line III-III in FIG. 2, the baffle board 71 has a circular disk shape with an outer diameter D and is coaxial with the cylindrical outer wall 6 .
- the outer wall 6 includes a ring-shaped neck portion 61 at the intermediate part 4 of the drain pipe P.
- the neck portion 61 extends toward a center of the interior space 100 .
- An inner diameter d of an opening in the neck portion 61 is smaller than the outer diameter of the baffle board 71 , as shown in FIG. 2. That is, a projected area (size or outer diameter D) of the baffle board 71 is large enough to entirely cover the opening (inner diameter d) of the neck portion 61 .
- the water inlet opening 10 is sufficiently narrowed with respect to the outer diameter D of the baffle board 71 by an inner diameter of the flange 12 of the connecting member 1 .
- the baffle board 71 having the outer diameter D larger than the inner diameter of the water inlet opening 10 is placed adjacent to the water inlet opening 10 below the flange 12 .
- a pair of inner base projections 91 extend radially inwardly from the outer wall 6 , and a base plate 9 is supported by a portion of the outer wall 6 and the partition wall 7 .
- the water outlet openings 20 penetrate through opposed points of the portion of the outer wall 6 disposed axially between the base plate 9 and the inner base projections 91 .
- FIG. 5 which is a cross-sectional view along line V-V in FIG. 2, the inner base projections 91 are opposed with each other and extend toward the partition wall 7 .
- a couple of rectangular inner openings 90 are provided between inner edges of the inner base projections 91 and the partition wall 7 .
- a labyrinth is formed in the interior space 100 by the water inlet opening 10 , the baffle board 71 , the neck portion 61 and the inner base projections (acting as another neck portion) 91 .
- the first embodiment provides the following advantages.
- All the water outlet openings 20 are opened on the lateral sides of the drain pipe P, and a lower side of the drain pipe P is covered with the base plate 9 .
- the lower side of the drain pipe P does not have a substantial opening through which water can penetrate into the interior space 100 , so that the intrusion of the water into the internal space of the casing C from the lower side of the drain pipe P is substantially restrained.
- the inner base projections 91 deeply extend into the respective water outlet openings 20 , so that the water applied obliquely and upwardly to the drain pipe P is substantially restrained from entering into the internal space of the casing C.
- the water is substantially restrained from entering into the internal space of the casing C. That is, when the water is applied to the one lateral side of the drain pipe P and thereby to one water outlet opening 20 , the other water outlet opening 20 does not receive the water due to the presence of the partition wall 7 . Thus, even if a negative pressure is developed within the internal space of the casing C, the air can be drawn from the other outlet opening 20 through the interior space 100 , and thereby the water is not drawn into the internal space of the casing C through the one water outlet opening 20 to which the water is applied.
- the water of relatively high pressure is applied to the lateral side of the drain pipe P, and thereby the water penetrates into the interior space 100 and is directed toward the water inlet 10 along the partition wall 7 from the water outlet opening 20 , the water is laterally deflected by the baffle board 71 .
- the labyrinth is defined in the interior space 100 by the baffle board 71 having the outer diameter D, the water inlet opening 10 having the inner diameter smaller than the outer diameter D of the baffle board 71 , the neck portion 61 and the like.
- the drain pipe P of the present embodiment can restrain both the intrusion of the water into the internal space of the casing C upon application of the water to the lower side of the drain pipe P and the intrusion of the water into the internal space of the casing C upon application of the water to the lateral side of the drain pipe P. Furthermore, even if the water of relatively high pressure is applied to the drain pipe P, the intrusion of the water into the internal space of the casing C can be advantageously restrained, as described above.
- FIG. 6 A first modification of the first embodiment will be described with reference to FIG. 6 that is similar to FIG. 3 showing a cross-sectional view along line III-III in FIG. 2.
- the interior space 100 of the drain pipe P is divided into three compartments of substantially equal size by the partition wall 7 .
- three water outlet openings 20 are arranged at 120 degree intervals and laterally open three different directions.
- the air can still pass through the remaining one water outlet opening 20 .
- the advantages similar to those of the first embodiment are achieved, and the water applied from a plurality of lateral directions can be advantageously restrained from entering into the internal space of the casing C.
- the partition wall 7 can be modified to have a crisscross shaped cross-section to divide the interior space 100 into four compartments, and four water outlet openings 20 can be provided to the four compartments, respectively.
- the water applied from the plurality of lateral directions can be advantageously restrained from penetrating into the internal space of the casing C.
- FIGS. 7 and 8 A second modification of the first embodiment will be described with reference to FIGS. 7 and 8 (a cross-sectional view along line VIII-VIII in FIG. 7).
- the partition wall 7 is not connected to the base plate 9 , and the two water outlet openings 20 are directly communicated with each other.
- the water of relatively high pressure when the water of relatively high pressure is laterally applied to one water outlet opening 20 , the applied water directly exits from the other water outlet opening 20 .
- the water of the relatively high pressure can be advantageously restrained from penetrating into the internal space of the casing C.
- a modification similar to the first modification can be applied to the second modification.
- advantages of the first modification can be additionally achieved.
- a drain pipe according to a second embodiment of the present invention will be described with reference to FIG. 9.
- Two water outlet openings 20 , 20 ′ that face away from each other are arranged at different axial positions (different heights).
- the rest of the structure of the drain pipe P according to the second embodiment is substantially the same as that of the first embodiment.
- the second embodiment provides the following advantages.
- the intrusion of the water into the internal space of the casing C is advantageously restrained even during the rise of the water level until all the water outlet openings 20 , 20 ′ are placed below the water level.
- the interior space 100 is divided into three or four compartments by a partition wall 7 , and the same number of the water outlet openings 20 , 20 ′ are laterally opened. At least one of the water outlet openings 20 , 20 ′ is placed at a different height from the rest of the openings 20 , 20 ′.
- this modification of the second embodiment in addition to the advantages of the second embodiment, it is possible to achieve advantages similar to those of the first modification of the first embodiment.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
- This application is based on and incorporates herein by reference Japanese Patent Application No. 2000-260702 filed on Aug. 30, 2000.
- 1. Field of the Invention:
- The present invention relates to a drain pipe for draining water or the like accumulated in a casing of, for example, a starting motor (starter) of a vehicle engine.
- 2. Description of Related Art:
- Water will be applied to a drain pipe connected, for example, to a bottom side of a casing of a starting motor of a vehicle engine when water is thrown off to the drain pipe by a tire of the vehicle that passes through a puddle of rain water (hereinafter referred to as a first case) or when water of relatively high pressure is applied to the drain pipe during car washing (hereinafter referred to as a second case).
- In the first case, the water is generally applied to a lateral side of the drain pipe since the vehicle generally runs in one direction when it passes through the puddle of rain water. On the other hand, in the second case, the water can be mainly applied to an upper side and a lower side of the drain pipe. However, the water applied toward the upper side of the drain pipe is substantially shielded by the casing and thereby loses its pressure. Thus, in the second case, it is only required to deal with the water applied to the lower side of the drain pipe. As a result, in order to restrain intrusion of the water into an internal space of the casing upon application of the water to the drain pipe, it is only required to restrain the water applied to the lateral side of the drain pipe and the water applied to the lower side of the drain pipe.
- In Japanese Unexamined Utility Model Publication No. 3-127465, a drain pipe having a couple of water outlet openings is disclosed. The outlet openings are provided at a lower end part of the drain pipe and extend laterally away from each other. In this drain pipe, when water is applied to a lower side of the drain pipe, intrusion of the water into the water outlet openings can be advantageously restrained due to the fact that the outlet openings extend laterally. Furthermore, in this drain pipe, the interior space forms a labyrinth that communicates a water inlet opening located at its upper end portion with the water outlet openings located at its lower end portion. Thus, even if the water of relatively high pressure is laterally applied to the drain pipe, intrusion of the water from the water outlet openings of the drain pipe through the interior space of the drain pipe can be advantageously restrained.
- However, in the drain pipe disclosed in the Japanese Unexamined Utility Model Publication No. 3-127465, only one interior space or compartment is provided to communicate the water inlet opening with the water outlet openings. Thus, when the water is laterally applied to the water outlet openings of the drain pipe, the water outlet openings can be covered with the water. In such a case, the water cannot be effectively drained through the drain pipe. Furthermore, when the water is applied to the starting motor, the starting motor is rapidly cooled, causing development of a negative pressure in the internal space of the starting motor. In this state, if the outlet openings of the drain pipe are covered with the water, the water is disadvantageously sucked into the internal space of the casing by the negative pressure.
- Thus, it is an objective of the present invention to provide a drain pipe that can restrain intrusion of water through the drain pipe when the water is applied to a lower side of the drain pipe and also when the water is applied to a lateral side of the drain pipe.
- To achieve the objective of the present invention, there is provided a drain pipe connected to a drain hole of a casing. The drain pipe includes a water inlet opening, a plurality of water outlet openings, a cylindrical outer wall and a partition wall. The water inlet opening is arranged at an upper end part of the drain pipe and is communicated to an internal space of the casing. The water outlet openings are arranged at a lower end part of the drain pipe and extend laterally of the drain pipe in different directions. The cylindrical outer wall is arranged at an intermediate part of the drain pipe. The cylindrical outer wall defines an interior space therein. The interior space communicates the water inlet opening with the water outlet openings. The partition wall is provided within the interior space of the cylindrical outer wall to divide at least a portion of the interior space of the cylindrical outer wall into a plurality of compartments. Each one of the plurality of water outlet openings is provided to each corresponding one of the plurality of compartments.
- The invention, together with additional objectives, features and advantages thereof, will be best understood from the following description, the appended claims and the accompanying drawings in which:
- FIG. 1 is a partial cross-sectional view showing arrangement of a drain pipe according to a first embodiment of the present invention;
- FIG. 2 is a longitudinal cross-sectional view of the drain pipe according to the first embodiment;
- FIG. 3 is a cross-sectional view along line III-III in FIG. 2;
- FIG. 4 is a cross-sectional view along line IV-IV in FIG. 2;
- FIG. 5 is a cross-sectional view along line V-V in FIG. 2;
- FIG. 6 is a cross-sectional view similar to FIG. 3, showing a first modification of the first embodiment;
- FIG. 7 is a longitudinal cross-sectional view showing a second modification of the first embodiment;
- FIG. 8 is a cross-sectional view along line VIII-VIII in FIG. 7; and
- FIG. 9 is a longitudinal cross-sectional view showing a drain pipe according to a second embodiment.
- Various embodiments of the present invention will be described with reference to the accompanying drawings.
- (First Embodiment)
- With reference to FIG. 1, a drain pipe P for draining water or the like according to a first embodiment of the present invention is connected to a drain hole H of a casing C that constitutes a motor rear end part of a starter S of a vehicle.
- The drain pipe P includes a connecting
member 1 made of a plastic material and amain body member 2 made of a rubber material. As shown in FIG. 2, the connectingmember 1 includes a pair ofclaws 11 at its upper end and aflange 12 at its lower end. Theclaws 11 extend in opposite directions, respectively, and theflange 12 is formed as an annular disk. With reference to FIG. 1, the connectingmember 1 sealingly connects anengaging portion 8 arranged at an upper end of themain body member 2 to an outer wall surface of the casing C. - With reference to FIG. 2, the drain pipe P of the present embodiment includes a water inlet opening10 at its
upper end part 3 and a couple ofwater outlet openings 20 at itslower end part 5. The water inlet opening 10 is communicated to an internal space of the casing C (FIG. 1). The water outlet openings 20 face away from each other and extend laterally outwardly of the drain pipe P. The drain pipe P further includes a cylindricalouter wall 6 at itsintermediate part 4 and apartition wall 7 received within thecylindrical wall 6. The cylindricalouter wall 6 defines aninterior space 100 therein. Theinterior space 100 communicates the water inlet opening 10 with thewater outlet openings 20. Theinterior space 100 is partially divided into two compartments by thepartition wall 7 that axially extends in theinterior space 100 from an axial intermediate point of theinterior space 100 to a base end of the drain pipe P. Each one of thewater outlet openings 20 is provided for each corresponding one of the compartments of theinterior space 100 and faces in a lateral direction that is opposite from that of the other water outlet opening 20. - As shown in FIG. 2, the
partition wall 7 has abaffle board 71 at its upper end. Thebaffle board 71 extends laterally outwardly on both sides of thepartition wall 7 in an upper end part of theinterior space 100. As shown in FIG. 3 which is a cross-sectional view along line III-III in FIG. 2, thebaffle board 71 has a circular disk shape with an outer diameter D and is coaxial with the cylindricalouter wall 6. - With reference to FIG. 4 which is a cross-sectional view along line IV-IV in FIG. 2, the
outer wall 6 includes a ring-shaped neck portion 61 at theintermediate part 4 of the drain pipe P. Theneck portion 61 extends toward a center of theinterior space 100. An inner diameter d of an opening in theneck portion 61 is smaller than the outer diameter of thebaffle board 71, as shown in FIG. 2. That is, a projected area (size or outer diameter D) of thebaffle board 71 is large enough to entirely cover the opening (inner diameter d) of theneck portion 61. - As shown in FIG. 2, the water inlet opening10 is sufficiently narrowed with respect to the outer diameter D of the
baffle board 71 by an inner diameter of theflange 12 of the connectingmember 1. Thebaffle board 71 having the outer diameter D larger than the inner diameter of the water inlet opening 10 is placed adjacent to the water inlet opening 10 below theflange 12. - At a base of the
outer wall 6, a pair ofinner base projections 91 extend radially inwardly from theouter wall 6, and abase plate 9 is supported by a portion of theouter wall 6 and thepartition wall 7. Thewater outlet openings 20 penetrate through opposed points of the portion of theouter wall 6 disposed axially between thebase plate 9 and theinner base projections 91. As shown in FIG. 5 which is a cross-sectional view along line V-V in FIG. 2, theinner base projections 91 are opposed with each other and extend toward thepartition wall 7. A couple of rectangularinner openings 90 are provided between inner edges of theinner base projections 91 and thepartition wall 7. - With the above-described arrangement, a labyrinth is formed in the
interior space 100 by the water inlet opening 10, thebaffle board 71, theneck portion 61 and the inner base projections (acting as another neck portion) 91. - The first embodiment provides the following advantages.
- All the
water outlet openings 20 are opened on the lateral sides of the drain pipe P, and a lower side of the drain pipe P is covered with thebase plate 9. Thus, the lower side of the drain pipe P does not have a substantial opening through which water can penetrate into theinterior space 100, so that the intrusion of the water into the internal space of the casing C from the lower side of the drain pipe P is substantially restrained. Furthermore, theinner base projections 91 deeply extend into the respectivewater outlet openings 20, so that the water applied obliquely and upwardly to the drain pipe P is substantially restrained from entering into the internal space of the casing C. - In a case of the water applied to one lateral side of the drain pipe P, the water is substantially restrained from entering into the internal space of the casing C. That is, when the water is applied to the one lateral side of the drain pipe P and thereby to one
water outlet opening 20, the other water outlet opening 20 does not receive the water due to the presence of thepartition wall 7. Thus, even if a negative pressure is developed within the internal space of the casing C, the air can be drawn from the other outlet opening 20 through theinterior space 100, and thereby the water is not drawn into the internal space of the casing C through the one water outlet opening 20 to which the water is applied. - Even if the water of relatively high pressure is applied to the lateral side of the drain pipe P, and thereby the water penetrates into the
interior space 100 and is directed toward thewater inlet 10 along thepartition wall 7 from thewater outlet opening 20, the water is laterally deflected by thebaffle board 71. Thus, the intrusion of the water into the internal space of the casing C is substantially restrained. The labyrinth is defined in theinterior space 100 by thebaffle board 71 having the outer diameter D, the water inlet opening 10 having the inner diameter smaller than the outer diameter D of thebaffle board 71, theneck portion 61 and the like. As a result, even if the water of the relatively high pressure is applied to the drain pipe P and splashes into theinterior space 100 of the drain pipe P, the intrusion of the water into the internal space of the casing C is substantially restrained. - Therefore, the drain pipe P of the present embodiment can restrain both the intrusion of the water into the internal space of the casing C upon application of the water to the lower side of the drain pipe P and the intrusion of the water into the internal space of the casing C upon application of the water to the lateral side of the drain pipe P. Furthermore, even if the water of relatively high pressure is applied to the drain pipe P, the intrusion of the water into the internal space of the casing C can be advantageously restrained, as described above.
- (First Modification of the First Embodiment)
- A first modification of the first embodiment will be described with reference to FIG. 6 that is similar to FIG. 3 showing a cross-sectional view along line III-III in FIG. 2. In the first modification, the
interior space 100 of the drain pipe P is divided into three compartments of substantially equal size by thepartition wall 7. Furthermore, threewater outlet openings 20 are arranged at 120 degree intervals and laterally open three different directions. Thus, even if the water is applied to and is retained in two of the threewater outlet openings 20, the air can still pass through the remaining onewater outlet opening 20. As a result, even if the negative pressure is developed within the internal space of the casing C, the water is not drawn into the internal space of the casing C. Therefore, according to the present embodiment, the advantages similar to those of the first embodiment are achieved, and the water applied from a plurality of lateral directions can be advantageously restrained from entering into the internal space of the casing C. - Furthermore, the
partition wall 7 can be modified to have a crisscross shaped cross-section to divide theinterior space 100 into four compartments, and fourwater outlet openings 20 can be provided to the four compartments, respectively. In this case, the water applied from the plurality of lateral directions can be advantageously restrained from penetrating into the internal space of the casing C. - (Second Modification of the First Embodiment)
- A second modification of the first embodiment will be described with reference to FIGS. 7 and 8 (a cross-sectional view along line VIII-VIII in FIG. 7). In the second modification, the
partition wall 7 is not connected to thebase plate 9, and the twowater outlet openings 20 are directly communicated with each other. With this arrangement, when the water of relatively high pressure is laterally applied to onewater outlet opening 20, the applied water directly exits from the otherwater outlet opening 20. Thus, in this drain pipe P, in addition to advantages similar to those of the first embodiment, the water of the relatively high pressure can be advantageously restrained from penetrating into the internal space of the casing C. - A modification similar to the first modification can be applied to the second modification. In such a case, advantages of the first modification can be additionally achieved.
- (Second Embodiment)
- A drain pipe according to a second embodiment of the present invention will be described with reference to FIG. 9. Two
water outlet openings - The second embodiment provides the following advantages.
- In the drain pipe P according to the second embodiment, a height difference is present between the two
water outlet openings water outlet opening 20 and the upper water outlet opening 20′, the air can be drawn into the internal space of the casing C through the upper water outlet opening 20′ located above the water level, and thereby the water is not drawn from the lower water outlet opening 20′ located under the water level. - As a result, in the drain pipe according the second embodiment, in addition to advantages similar to those of the first embodiment, the intrusion of the water into the internal space of the casing C is advantageously restrained even during the rise of the water level until all the
water outlet openings - (A First Modification of the Second Embodiment)
- Similar to the first modification of the first embodiment, in a first modification of the second embodiment, the
interior space 100 is divided into three or four compartments by apartition wall 7, and the same number of thewater outlet openings water outlet openings openings - Additional advantages and modifications will readily occur to those skilled in the art. The invention in its broader terms is therefore, not limited to the specific details, representative apparatus, and illustrative examples shown and described. Changes may be made in detail, especially in matters of shape, size and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000260702A JP2002078275A (en) | 2000-08-30 | 2000-08-30 | Drainage pipe |
JP2000-260702 | 2000-08-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020023686A1 true US20020023686A1 (en) | 2002-02-28 |
US6371167B1 US6371167B1 (en) | 2002-04-16 |
Family
ID=18748672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/940,648 Expired - Fee Related US6371167B1 (en) | 2000-08-30 | 2001-08-29 | Drain pipe for draining water or the like from casing |
Country Status (2)
Country | Link |
---|---|
US (1) | US6371167B1 (en) |
JP (1) | JP2002078275A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2006532A1 (en) * | 2007-06-20 | 2008-12-24 | AISIN AI Co., Ltd. | Liquid resistant transmission housing |
CN102011898A (en) * | 2010-12-04 | 2011-04-13 | 李胜利 | Double-flow pipe |
WO2014089645A1 (en) | 2012-12-11 | 2014-06-19 | Web Equipamentos Elétricos S.A. - Motores | Drainage system for electric machines, and electric machines comprising same |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4508119B2 (en) * | 2006-01-17 | 2010-07-21 | 株式会社デンソー | Starter |
JP5014030B2 (en) * | 2007-09-07 | 2012-08-29 | 株式会社ミツバ | Electric motor with reduction mechanism |
US20120068452A1 (en) * | 2010-09-22 | 2012-03-22 | Cleveland Tubing, Inc. | Low Profile Collapsible, Expandable, Flexible and Camouflaged Corrugated Downspout Extension and Adapter |
JP5652128B2 (en) * | 2010-10-29 | 2015-01-14 | 株式会社デンソー | Drainage structure of rotating electric machine |
JP2012102683A (en) * | 2010-11-11 | 2012-05-31 | Mitsubishi Electric Corp | Engine start-up device |
PL2626980T3 (en) * | 2012-02-08 | 2015-04-30 | Grundfos Holding As | Pump power unit |
CN104390075A (en) * | 2014-09-12 | 2015-03-04 | 徐东海 | Water pipe with bracket |
JP6132877B2 (en) * | 2015-06-17 | 2017-05-24 | 株式会社ミツバ | Electric motor for vehicles |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3894302A (en) * | 1972-03-08 | 1975-07-15 | Tyler Pipe Ind Inc | Self-venting fitting |
CH598430A5 (en) * | 1976-04-05 | 1978-04-28 | Geberit Ag | |
JPH02211379A (en) * | 1989-02-10 | 1990-08-22 | Mitsubishi Electric Corp | Drain device for starting electric motor |
JPH03127465A (en) | 1989-10-09 | 1991-05-30 | Yuasa Battery Co Ltd | Alkaline metal-sulphur battery |
US5505027A (en) * | 1995-04-03 | 1996-04-09 | Young; James E. | Service conduit drain |
US6056014A (en) * | 1997-07-31 | 2000-05-02 | Noriatsu Kojima | Drainage collective pipe joint |
-
2000
- 2000-08-30 JP JP2000260702A patent/JP2002078275A/en active Pending
-
2001
- 2001-08-29 US US09/940,648 patent/US6371167B1/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2006532A1 (en) * | 2007-06-20 | 2008-12-24 | AISIN AI Co., Ltd. | Liquid resistant transmission housing |
CN102011898A (en) * | 2010-12-04 | 2011-04-13 | 李胜利 | Double-flow pipe |
WO2014089645A1 (en) | 2012-12-11 | 2014-06-19 | Web Equipamentos Elétricos S.A. - Motores | Drainage system for electric machines, and electric machines comprising same |
Also Published As
Publication number | Publication date |
---|---|
US6371167B1 (en) | 2002-04-16 |
JP2002078275A (en) | 2002-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6371167B1 (en) | Drain pipe for draining water or the like from casing | |
EP0882177B1 (en) | Fan shroud and receptacle arrangement | |
US5558244A (en) | Oil reservoir having a cap with cylindrical baffles defining labyrinth passage | |
EP1321352A3 (en) | Vehicle having structure for preventing entry of water drops into engine compartment thereof | |
US3692004A (en) | Fan shroud and fluid receptacle arrangement | |
JPH11266516A (en) | Distribution box | |
US5071322A (en) | Waterproof structure for fan motor | |
EP1396371B1 (en) | Air intake assembly for vehicle engine and method of manufacturing same | |
US3083254A (en) | Battery vent plug | |
TW490415B (en) | Resin reservoir tank | |
US20030151250A1 (en) | Mounting structure for tubular member | |
JPS61150815A (en) | Air conditioner for automobile | |
JPH04330311A (en) | Delay member for lubricating oil | |
CN217682365U (en) | Automobile fan capable of preventing fan blades from falling off | |
JPS5824575Y2 (en) | automotive ventilation system | |
JP2507441Y2 (en) | Strainer for liquid tanks | |
JPH0712686Y2 (en) | Air introduction device for vehicle air cleaner | |
JPS6315604Y2 (en) | ||
JPS625939Y2 (en) | ||
JPH059210Y2 (en) | ||
JPS5923605Y2 (en) | Ventilation structure in vehicles | |
JPS6123611Y2 (en) | ||
JPS6233620Y2 (en) | ||
JPS6253226A (en) | Fuel tank made of resin | |
KR0125828Y1 (en) | Drain gromet of chassis |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: DENSO CORPORATION, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HOSOYA, AKIFUMI;WAKAHARA, YASUYUKI;REEL/FRAME:012126/0801;SIGNING DATES FROM 20010726 TO 20010801 |
|
FEPP | Fee payment procedure |
Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20100416 |