US20070237651A1 - Reciprocating pump apparatus - Google Patents
Reciprocating pump apparatus Download PDFInfo
- Publication number
- US20070237651A1 US20070237651A1 US11/729,243 US72924307A US2007237651A1 US 20070237651 A1 US20070237651 A1 US 20070237651A1 US 72924307 A US72924307 A US 72924307A US 2007237651 A1 US2007237651 A1 US 2007237651A1
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- United States
- Prior art keywords
- crankcase
- reciprocating pump
- bolts
- pump apparatus
- adaptor
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- 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.)
- Abandoned
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- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
-
- 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
- F04B53/22—Arrangements for enabling ready assembly or disassembly
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Definitions
- the present invention relates to a reciprocating pump apparatus such as plunger pump and piston pump.
- Reciprocating pump apparatus such as plunger pumps and piston pumps include those of types in which a crankshaft is directly connected to an output shaft of a driving source such as engine or motor.
- a driving source such as engine or motor.
- Such reciprocating pump apparatus directly connected to driving sources have also been demanded for use in a stationary state, i.e., with their crankshafts fixed to a support such as apparatus frame without being directly connected to the output shaft of the driving source, while receiving a driving force through an appropriate transmission mechanism.
- an adaptor also known as “rail” is attached to a crankcase, so as to be fixed to a support in the pump apparatus disclosed in the following Patent Document 1, for example.
- a boss for attaching the adaptor to the crankcase is provided on the outer surface of the crankcase, and the adaptor is fixed to the boss with a bolt.
- crankcase with the boss, however, complicates the form of the crankcase, necessitates extra materials, and increases labor and cost of manufacture.
- the present invention provides a reciprocating pump apparatus ( 10 ) comprising: a crankcase ( 16 ), having at least one open end part, for supporting a crankshaft ( 14 ); a closing member ( 20 ), removably fixable to the crankcase ( 16 ) with a first set of bolts ( 22 a to 22 d ) so as to close the open end part of the crankcase ( 16 ); and a pump case ( 26 ) of a reciprocating pump ( 12 ), removably fixable to a side face of the crankcase ( 16 ) with a second set of bolts ( 28 ); wherein a position of the first set of bolts ( 22 a to 22 d ) for fixing the closing member ( 20 ) to the crankcase ( 16 ) is determined such that an adaptor ( 40 ) for fixing the reciprocating pump apparatus ( 10 ) to a support ( 58 ) is fastened to the crankcase ( 16 ) together with the closing member ( 20 ) in a
- the first set of bolts ( 22 a to 22 d ) are arranged symmetrically about a first plane (P 1 ), which is including the center axes of the reciprocating pump ( 12 ) and the axis of rotation of the crankshaft ( 14 ).
- the first set of bolts ( 22 a to 22 d ) are arranged symmetrically about a third plane (P 3 ), which is orthogonal to the first plane (P 1 ) and includes the axis of rotation of the crankshaft ( 14 ).
- the bolts ( 22 a to 22 d ) of the first set are equally distanced from the axis of rotation of the crankshaft ( 14 ).
- the bolts ( 22 a to 22 d ) of the first set are provided, having the same angles around the axis of rotation in the center.
- a position of the second set of bolts ( 28 ), for fixing the pump case ( 26 ) to the crankcase ( 16 ), is determined such that the pump case ( 26 ) is fixable to the crankcase ( 16 ) in a vertically reversed fashion.
- the second set of bolts ( 28 ) are arranged symmetrically about the first plane (P 1 ).
- the second set of bolts ( 28 ) are arranged symmetrically about the second plane (P 2 ), which is orthogonal to the first plane (P 1 ) and includes the center axis of the reciprocating pump ( 12 ).
- crankcase Since the bolt for fixing the closing member, which is a member essential for the reciprocating pump apparatus, to the crankcase is utilized for attaching the adaptor, there is no need to provide the crankcase with bosses or turn it into other special forms, whereby the crankcase can attain a simple form. This can reduce the labor and cost of manufacturing the reciprocating pump apparatus.
- FIG. 1 A perspective view showing an embodiment of the reciprocating pump apparatus in accordance with the present invention.
- FIG. 2 A perspective view showing the reciprocating pump apparatus in accordance with the present invention seen in a direction opposite from that of FIG. 1 .
- FIG. 3 A view showing a state where the reciprocating pump apparatus shown in FIG. 1 is fixed onto a support through an adaptor, in which (a) is a front view, (b) is a left side view, and (c) is a right side view.
- FIG. 4 A view showing another state where the reciprocating pump apparatus shown in FIG. 1 is fixed onto the support through the adaptor, in which (a) is a front view, (b) is a left side view, and (c) is a right side view.
- FIG. 1 is a perspective view showing an embodiment of the reciprocating pump apparatus in accordance with the present invention
- FIG. 2 is a perspective view thereof when seen in a direction opposite to that of FIG. 1
- the reciprocating pump apparatus 10 in accordance with the depicted embodiment is of a triple type in which three plunger pumps (reciprocating pumps) 12 are provided in parallel. Forces for driving the plunger pumps 12 are transmitted through a crankshaft 14 .
- the depicted reciprocating pump apparatus 10 is of a driving source direct connection type in which the crankshaft 14 is directly connected to an output shaft of a driving source such as engine or motor.
- the crankshaft 14 is rotatably held within the crankcase 16 .
- the crankcase 16 has a bottomed cylindrical form (bell form) having one end closed and the other end opened.
- a bearing is placed within the crankcase 16 on its closed end part 18 side, so as to support one end of the crankshaft 14 .
- a bearing case (closing member) 20 provided with a bearing is removably fixed to the open end part of the crankcase 16 with bolts 22 a to 22 d (a first set of bolts), so as to close the open end part.
- the crankshaft 14 is supported by the bearing within the bearing case 20 and further penetrates through the bearing case 20 , thereby projecting to the outside.
- the projected end part of the crankshaft 14 is formed with a key groove 24 so as to make it easier to connect directly with the output shaft of the driving source.
- Each plunger pump 12 is arranged such that its center axis (i.e., the center axis of its cylinder) is orthogonal to the axis of rotation of the crankshaft 14 .
- the three plunger pumps 12 are arranged in a row such that their center axes are parallel to each other while being equally spaced along the axis of rotation of the crankshaft 14 .
- a manifold 26 which also functions as a pump case for these plunger pumps 12 is removably fixed to a side face of the crankcase 16 with bolts 28 (a second set of bolts).
- the bolts 28 for fixing the manifold 26 to the crankcase 16 are passed through their corresponding through holes 30 formed in the manifold 26 , so as to engage screw holes 32 provided in a side face of the crankcase 16 .
- screw holes 32 there are a plurality of (8 in this embodiment) screw holes 32 , which are arranged 4 by 4 on the upper and lower sides while being symmetrical about a first plane P 1 including the center axes of the plunger pumps 12 and the axis of rotation of the crankshaft 14 .
- the bolts 28 are arranged symmetrically about the first plane PI.
- the screw holes 32 are also formed 4 by 4 on the right and left sides while being symmetrical about a second plane P 2 which is orthogonal to the first plane P 1 and includes the center axis of the center plunger pump 12 .
- the bolts 28 are arranged symmetrically about the second plane P 2 .
- the screw holes 32 and the bolts 28 are arranged rotationally symmetrically with an order of 2.
- the bolts 22 a to 22 d for attaching the bearing case 20 to the open end part of the crankcase 16 are passed through their corresponding through holes 34 a to 34 d formed in the bearing case 20 , so as to engage screw holes 36 a to 36 d provided in the open end part of the crankcase 16 .
- the bolts 22 a to 22 d are arranged symmetrically about the first plane P 1 .
- the screw holes 36 a to 36 d are also arranged symmetrically about a third plane P 3 which is orthogonal to the first plane P 1 and includes the axis of rotation of the crankshaft 14 .
- the bolts 22 a to 22 d are arranged symmetrically about the third plane P 3 .
- the screw holes 36 a to 36 d and also the bolts 22 a to 22 d are equally distanced from the axis of rotation of the crankshaft 14 and are provided at intervals of 90° about the axis of rotation.
- the closed end part 18 of the crankcase 16 is provided with two screw holes 38 .
- These screw holes 38 are symmetrical about the third plane P 3 and about the axis of rotation of the crankshaft 14 .
- the screw holes 38 are used when attaching an adaptor 40 which will be explained in the following.
- the crankcase 16 having the bell form is hard to place directly onto a support such as apparatus frame.
- the adaptor 40 is employed.
- This adaptor 40 is a sheet made of a highly rigid material such as metal, and is constituted by a lower part 42 and first and second side parts 44 , 46 rising from respective ends of the lower part 42 .
- the gap between the first and second side parts 44 , 46 is substantially equal to the distance from the outer face of the closed end part 18 of the crankcase 16 to the outer face of the bearing case 20 , so that the crankcase 16 and bearing case 20 can be placed between the first and second side parts 44 , 46 as shown in (a) to (c) of FIG.
- Two through holes 48 a , 48 b are formed in the upper portion of the first side part 44 . These through holes 48 a , 48 b are formed with the same pitch as with the lower or upper two through holes 34 a , 34 b ; 34 c , 34 d in the bearing case 20 and the lower or upper two screw holes 36 a , 36 b ; 36 c , 36 d in the crankcase 16 .
- Two through holes 50 are formed in the upper portion of the second side part 46 with the same pitch as with the two screw holes 38 formed in the closed end part 18 of the crankcase 16 .
- the bolts 22 a , 22 b , 52 are passed through the through holes 48 a , 48 b , 50 of the first and second side parts 44 , 46 , so as to engage the screw holes 36 a , 36 b , 38 of the crankcase 16 .
- the adaptor 40 and bearing case 20 can simultaneously be fixed to the crankcase 16 . Since the screw holes 36 a , 36 b for securing the bearing case 20 are utilized for attaching the adaptor 40 , it is unnecessary to provide a boss as in the reciprocating pump apparatus disclosed in the above-mentioned Patent Document 1 or turn the crankcase 16 and the bearing case 20 into other special forms. Therefore, simple molds are sufficient for manufacturing the crankcase 16 and bearing case 20 , which can reduce the labor and cost of manufacture. This also contributes to reducing the weight of the reciprocating pump apparatus 10 , since there are no extra bosses and the like.
- the lower part 42 of the adaptor 40 When the adaptor 40 is attached, the lower part 42 of the adaptor 40 is substantially parallel to the axis of rotation of the crankshaft 14 and the center axes of the plunger pumps 12 as shown in (a) to (c) of FIG. 3 .
- the adaptor 40 When the adaptor 40 is fixed to the support 58 such as apparatus frame with bolts/nuts 56 utilizing through holes 54 formed in the lower part 42 , the reciprocating apparatus 10 can be secured to the support 58 . In this state, a driving force from a driving source fixed to the support 58 or the like is transmitted to the crankshaft through an appropriate transmission mechanism such as belt transmission mechanism.
- a depression 60 is formed at the center part in the upper edge of the second side part 46 of the adaptor 40 , so that a projection 62 at the center of the closed end part 18 in the crankcase 16 fits into the depression 60 . Therefore, when the first side part 44 of the adaptor 40 is bolted, the second side part 46 is supported by the projection 62 . Hence, though the second side part 46 is not necessarily bolted, the bolts 52 are preferably used for securing the adaptor 40 more reliably.
- FIG. 4 ( a ) to ( c ) are views showing another mode of attaching the adaptor 40 .
- the bolts 22 c , 22 d on the upper side in (a) to (c) of FIG. 3 are removed, and the first side part 44 of the adaptor 40 is attached there.
- the reciprocating pump apparatus 10 in this case is vertically reversed from the attached state of FIG. 3 . Since the crankshaft 14 projects only one end thereof in this embodiment, the reciprocating pump apparatus 10 is easily applicable to various driving source positions if it can be fixed to the support 58 in a vertically reversed fashion, whereby the degree of freedom in the layout of the reciprocating pump apparatus 10 also increases.
- a discharge port 64 of the manifold 26 is located on the lower side.
- a lid 66 for taking out the valve on the discharge port 64 side faces down and thus narrows the clearance from the support 58 in this state.
- this embodiment can vertically reverse the manifold 26 as mentioned above, so that the lid 66 can face up as well.
- the manifold 26 can vertically be reversed in the state shown in (a) to (c) of FIG. 3 such that the lid 66 faces down.
- the reciprocating pump apparatus 10 in accordance with this embodiment can be fixed to the support 58 in four modes, which further improves the degree of freedom in the layout.
- the reciprocating pumps may be piston pumps, and are not required to be of a multiple type.
- the number of screw holes is not limited to those of the above-mentioned embodiment.
- the bolts 22 a , 22 d which are located on the lower and upper sides in (a) and (b) of FIG. 3 , may be utilized for securing the adaptor 40 , so that the adaptor 40 is erected with the manifold 26 facing up.
- the form of the adaptor can be changed in various ways.
Abstract
An objective is to provide a reciprocating pump apparatus which can change a position where an adaptor to be fixed to a support is attached, while having a simple form.
In a reciprocating pump apparatus 10 having a crankshaft 14 directly connected to an output shaft of a driving source, positions of bolts 22a to 22d for fixing a bearing case 20 for closing an open end part of a crankcase 16 to the crankcase are determined such that an adaptor 40 for fixing the reciprocating pump apparatus to a support 58 is fastened to the crankcase together with the bearing case in a positionally changeable fashion. Since the position of the adaptor is changeable, the degree of freedom in the layout of apparatus improves in this structure. Also, since bolts for fixing a manifold to the crankcase are utilized for attaching the adaptor, a simple form is attained.
Description
- 1. Field of the Invention
- The present invention relates to a reciprocating pump apparatus such as plunger pump and piston pump.
- 2. Related Background Art
- Reciprocating pump apparatus such as plunger pumps and piston pumps include those of types in which a crankshaft is directly connected to an output shaft of a driving source such as engine or motor. However, such reciprocating pump apparatus directly connected to driving sources have also been demanded for use in a stationary state, i.e., with their crankshafts fixed to a support such as apparatus frame without being directly connected to the output shaft of the driving source, while receiving a driving force through an appropriate transmission mechanism.
- For such a demand, an adaptor (also known as “rail”) is attached to a crankcase, so as to be fixed to a support in the pump apparatus disclosed in the following Patent Document 1, for example.
- [Patent Document 1] Japanese Utility Model Application Laid-Open No. SHO 62-122167
- In the reciprocating apparatus disclosed in the above-mentioned Patent Document 1, a boss for attaching the adaptor to the crankcase is provided on the outer surface of the crankcase, and the adaptor is fixed to the boss with a bolt.
- Providing the crankcase with the boss, however, complicates the form of the crankcase, necessitates extra materials, and increases labor and cost of manufacture.
- Also, since the boss is provided only in the lower part of the crankcase, the adaptor cannot be attached to the upper part in the reciprocating pump apparatus disclosed in the above-mentioned Patent Document 1. This limits the degree of freedom in the layout of the reciprocating pump apparatus. Though the boss may be provided in the upper part of the crankcase as a matter of course, this will further complicate the crankcase form and so forth.
- Therefore, it is an object of the present invention to provide a reciprocating pump apparatus which can change a position where an adaptor is attached, while having a simple form.
- For achieving the above-mentioned object, the present invention provides a reciprocating pump apparatus (10) comprising: a crankcase (16), having at least one open end part, for supporting a crankshaft (14); a closing member (20), removably fixable to the crankcase (16) with a first set of bolts (22 a to 22 d) so as to close the open end part of the crankcase (16); and a pump case (26) of a reciprocating pump (12), removably fixable to a side face of the crankcase (16) with a second set of bolts (28); wherein a position of the first set of bolts (22 a to 22 d) for fixing the closing member (20) to the crankcase (16) is determined such that an adaptor (40) for fixing the reciprocating pump apparatus (10) to a support (58) is fastened to the crankcase (16) together with the closing member (20) in a positionally changeable fashion.
- Preferably, the first set of bolts (22 a to 22 d) are arranged symmetrically about a first plane (P1), which is including the center axes of the reciprocating pump (12) and the axis of rotation of the crankshaft (14).
- Preferably, the first set of bolts (22 a to 22 d) are arranged symmetrically about a third plane (P3), which is orthogonal to the first plane (P1) and includes the axis of rotation of the crankshaft (14).
- Preferably, the bolts (22 a to 22 d) of the first set are equally distanced from the axis of rotation of the crankshaft (14).
- Preferably, the bolts (22 a to 22 d) of the first set are provided, having the same angles around the axis of rotation in the center.
- When the position of the adaptor (40) is vertically changeable, it will be preferred if a position of the second set of bolts (28), for fixing the pump case (26) to the crankcase (16), is determined such that the pump case (26) is fixable to the crankcase (16) in a vertically reversed fashion.
- Preferably, the second set of bolts (28) are arranged symmetrically about the first plane (P1).
- Preferably, the second set of bolts (28) are arranged symmetrically about the second plane (P2), which is orthogonal to the first plane (P1) and includes the center axis of the reciprocating pump (12).
- Since the position of the adaptor used for turning the originally driving source direct connection type reciprocating pump apparatus into a stationary type is changeable, the degree of freedom in the layout of apparatus improves in the structure mentioned above.
- Since the bolt for fixing the closing member, which is a member essential for the reciprocating pump apparatus, to the crankcase is utilized for attaching the adaptor, there is no need to provide the crankcase with bosses or turn it into other special forms, whereby the crankcase can attain a simple form. This can reduce the labor and cost of manufacturing the reciprocating pump apparatus.
- [
FIG. 1 ] A perspective view showing an embodiment of the reciprocating pump apparatus in accordance with the present invention. - [
FIG. 2 ] A perspective view showing the reciprocating pump apparatus in accordance with the present invention seen in a direction opposite from that ofFIG. 1 . - [
FIG. 3 ] A view showing a state where the reciprocating pump apparatus shown inFIG. 1 is fixed onto a support through an adaptor, in which (a) is a front view, (b) is a left side view, and (c) is a right side view. - [
FIG. 4 ] A view showing another state where the reciprocating pump apparatus shown inFIG. 1 is fixed onto the support through the adaptor, in which (a) is a front view, (b) is a left side view, and (c) is a right side view. - In the following, preferred embodiments of the reciprocating apparatus in accordance with the present invention will be explained in detail with reference to the drawings. Parts identical or equivalent to each other in the drawings will be referred to with numerals identical to each other. In this specification and accompanying claims, “upper” and “lower” are based on the state where the reciprocating pump apparatus is fixed to a support (see
FIGS. 3 and 4 ). -
FIG. 1 is a perspective view showing an embodiment of the reciprocating pump apparatus in accordance with the present invention, whereasFIG. 2 is a perspective view thereof when seen in a direction opposite to that ofFIG. 1 . The reciprocatingpump apparatus 10 in accordance with the depicted embodiment is of a triple type in which three plunger pumps (reciprocating pumps) 12 are provided in parallel. Forces for driving theplunger pumps 12 are transmitted through acrankshaft 14. The depictedreciprocating pump apparatus 10 is of a driving source direct connection type in which thecrankshaft 14 is directly connected to an output shaft of a driving source such as engine or motor. - The
crankshaft 14 is rotatably held within thecrankcase 16. Thecrankcase 16 has a bottomed cylindrical form (bell form) having one end closed and the other end opened. A bearing is placed within thecrankcase 16 on its closedend part 18 side, so as to support one end of thecrankshaft 14. A bearing case (closing member) 20 provided with a bearing is removably fixed to the open end part of thecrankcase 16 withbolts 22 a to 22 d (a first set of bolts), so as to close the open end part. Thecrankshaft 14 is supported by the bearing within thebearing case 20 and further penetrates through thebearing case 20, thereby projecting to the outside. In this embodiment, the projected end part of thecrankshaft 14 is formed with akey groove 24 so as to make it easier to connect directly with the output shaft of the driving source. - Each
plunger pump 12 is arranged such that its center axis (i.e., the center axis of its cylinder) is orthogonal to the axis of rotation of thecrankshaft 14. The threeplunger pumps 12 are arranged in a row such that their center axes are parallel to each other while being equally spaced along the axis of rotation of thecrankshaft 14. Amanifold 26 which also functions as a pump case for theseplunger pumps 12 is removably fixed to a side face of thecrankcase 16 with bolts 28 (a second set of bolts). - The
bolts 28 for fixing themanifold 26 to thecrankcase 16 are passed through their corresponding throughholes 30 formed in themanifold 26, so as to engagescrew holes 32 provided in a side face of thecrankcase 16. As can also be seen from (a) ofFIG. 3 , there are a plurality of (8 in this embodiment)screw holes 32, which are arranged 4 by 4 on the upper and lower sides while being symmetrical about a first plane P1 including the center axes of theplunger pumps 12 and the axis of rotation of thecrankshaft 14. Namely, thebolts 28 are arranged symmetrically about the first plane PI. Thescrew holes 32 are also formed 4 by 4 on the right and left sides while being symmetrical about a second plane P2 which is orthogonal to the first plane P1 and includes the center axis of thecenter plunger pump 12. Namely, thebolts 28 are arranged symmetrically about the second plane P2. In other words, thescrew holes 32 and thebolts 28 are arranged rotationally symmetrically with an order of 2. Thus arranging thescrew holes 32 above makes it possible to attach themanifold 26 in a vertically reversed state to thecrankcase 16. - The
bolts 22 a to 22 d for attaching thebearing case 20 to the open end part of thecrankcase 16 are passed through their corresponding throughholes 34 a to 34 d formed in thebearing case 20, so as to engagescrew holes 36 a to 36 d provided in the open end part of thecrankcase 16. There are a plurality of (6 in this embodiment)screw holes 36 a to 36 d, which are arranged symmetrically about the above-mentioned first plane P1. Namely, thebolts 22 a to 22 d are arranged symmetrically about the first plane P1. Thescrew holes 36 a to 36 d are also arranged symmetrically about a third plane P3 which is orthogonal to the first plane P1 and includes the axis of rotation of thecrankshaft 14. Namely, thebolts 22 a to 22 d are arranged symmetrically about the third plane P3. In the depicted embodiment, thescrew holes 36 a to 36 d and also thebolts 22 a to 22 d are equally distanced from the axis of rotation of thecrankshaft 14 and are provided at intervals of 90° about the axis of rotation. - As shown in
FIG. 2 , the closedend part 18 of thecrankcase 16 is provided with twoscrew holes 38. These screw holes 38 are symmetrical about the third plane P3 and about the axis of rotation of thecrankshaft 14. The screw holes 38 are used when attaching anadaptor 40 which will be explained in the following. - When the above-mentioned
reciprocating pump apparatus 10 of driving sourcedirect connection type 10 is used as a stationary type, thecrankcase 16 having the bell form is hard to place directly onto a support such as apparatus frame. Hence, theadaptor 40 is employed. Thisadaptor 40 is a sheet made of a highly rigid material such as metal, and is constituted by alower part 42 and first andsecond side parts lower part 42. The gap between the first andsecond side parts closed end part 18 of thecrankcase 16 to the outer face of the bearingcase 20, so that thecrankcase 16 and bearingcase 20 can be placed between the first andsecond side parts FIG. 3 . Two throughholes first side part 44. These throughholes holes case 20 and the lower or upper twoscrew holes crankcase 16. Two throughholes 50 are formed in the upper portion of thesecond side part 46 with the same pitch as with the two screw holes 38 formed in theclosed end part 18 of thecrankcase 16. - When attaching the
adaptor 40 to thereciprocating pump apparatus 10 in the mode shown in (a) to (c) ofFIG. 3 , the lower twobolts case 20 are removed at first. Then, thecrankcase 16 and bearingcase 20 are held between the first andsecond side parts adapter 40, the throughholes holes holes holes 50 are aligned with the screw holes 38. Finally, thebolts holes second side parts crankcase 16. When fastened with thebolts adaptor 40 and bearingcase 20 can simultaneously be fixed to thecrankcase 16. Since the screw holes 36 a, 36 b for securing the bearingcase 20 are utilized for attaching theadaptor 40, it is unnecessary to provide a boss as in the reciprocating pump apparatus disclosed in the above-mentioned Patent Document 1 or turn thecrankcase 16 and the bearingcase 20 into other special forms. Therefore, simple molds are sufficient for manufacturing thecrankcase 16 and bearingcase 20, which can reduce the labor and cost of manufacture. This also contributes to reducing the weight of thereciprocating pump apparatus 10, since there are no extra bosses and the like. - When the
adaptor 40 is attached, thelower part 42 of theadaptor 40 is substantially parallel to the axis of rotation of thecrankshaft 14 and the center axes of the plunger pumps 12 as shown in (a) to (c) ofFIG. 3 . When theadaptor 40 is fixed to thesupport 58 such as apparatus frame with bolts/nuts 56 utilizing throughholes 54 formed in thelower part 42, thereciprocating apparatus 10 can be secured to thesupport 58. In this state, a driving force from a driving source fixed to thesupport 58 or the like is transmitted to the crankshaft through an appropriate transmission mechanism such as belt transmission mechanism. - A
depression 60 is formed at the center part in the upper edge of thesecond side part 46 of theadaptor 40, so that aprojection 62 at the center of theclosed end part 18 in thecrankcase 16 fits into thedepression 60. Therefore, when thefirst side part 44 of theadaptor 40 is bolted, thesecond side part 46 is supported by theprojection 62. Hence, though thesecond side part 46 is not necessarily bolted, thebolts 52 are preferably used for securing theadaptor 40 more reliably. - In FIG. 4,(a) to (c) are views showing another mode of attaching the
adaptor 40. Here, thebolts FIG. 3 are removed, and thefirst side part 44 of theadaptor 40 is attached there. When fixed to thesupport 58, thereciprocating pump apparatus 10 in this case is vertically reversed from the attached state ofFIG. 3 . Since thecrankshaft 14 projects only one end thereof in this embodiment, thereciprocating pump apparatus 10 is easily applicable to various driving source positions if it can be fixed to thesupport 58 in a vertically reversed fashion, whereby the degree of freedom in the layout of thereciprocating pump apparatus 10 also increases. - In the state shown in (a) to (c) of
FIG. 4 , adischarge port 64 of the manifold 26 is located on the lower side. Though alid 66 for taking out the valve on thedischarge port 64 side faces down and thus narrows the clearance from thesupport 58 in this state, this embodiment can vertically reverse the manifold 26 as mentioned above, so that thelid 66 can face up as well. Similarly, the manifold 26 can vertically be reversed in the state shown in (a) to (c) ofFIG. 3 such that thelid 66 faces down. Namely, thereciprocating pump apparatus 10 in accordance with this embodiment can be fixed to thesupport 58 in four modes, which further improves the degree of freedom in the layout. - Though a preferred embodiment of the present invention is explained in detail in the foregoing, the present invention is not limited to the above-mentioned embodiment as a matter of course.
- For example, the reciprocating pumps may be piston pumps, and are not required to be of a multiple type. Also, the number of screw holes is not limited to those of the above-mentioned embodiment. Further, the
bolts FIG. 3 , may be utilized for securing theadaptor 40, so that theadaptor 40 is erected with the manifold 26 facing up. Furthermore, the form of the adaptor can be changed in various ways.
Claims (8)
1. A reciprocating pump apparatus comprising:
a crankcase, having at least one open end part, for supporting a crankshaft;
a closing member, removably fixable to the crankcase with a first set of bolts so as to close the open end part of the crankcase; and
a pump case of a reciprocating pump, removably fixable to a side face of the crankcase with a second set of bolts;
wherein a position of the first set of bolts for fixing the closing member to the crankcase is determined such that an adaptor for fixing the reciprocating pump apparatus to a support is fastened to the crankcase together with the closing member in a positionally changeable fashion.
2. A reciprocating pump apparatus according to claim 1 , wherein the first set of bolts are arranged symmetrically about a first plane, which is including the center axes of the reciprocating pump and the axis of rotation of the crankshaft.
3. A reciprocating pump apparatus according to claim 1 , wherein the first set of bolts are arranged symmetrically about a third plane, which is orthogonal to the first plane and includes the axis of rotation of the crankshaft.
4. A reciprocating pump apparatus according to claim 1 , wherein the bolts of the first set are equally distanced from the axis of rotation of the crankshaft.
5. A reciprocating pump apparatus according to claim 1 , wherein the bolts of the first set are provided, having the same angles around the axis of rotation in the center.
6. A reciprocating pump apparatus according to claim 1 , wherein the position of the adaptor is vertically changeable; and
a position of the second set of bolts, for fixing the pump case to the crankcase, is determined such that the pump case is fixable to the crankcase in a vertically reversed fashion.
7. A reciprocating pump apparatus according to claim 6 , wherein the second set of bolts are arranged symmetrically about the first plane.
8. A reciprocating pump apparatus according to claim 6 , wherein the second set of bolts are arranged symmetrically about the second plane, which is orthogonal to the first plane and includes the center axis of the reciprocating pump.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-106492 | 2006-04-07 | ||
JP2006106492A JP4164513B2 (en) | 2006-04-07 | 2006-04-07 | Reciprocating pump device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070237651A1 true US20070237651A1 (en) | 2007-10-11 |
Family
ID=38575489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/729,243 Abandoned US20070237651A1 (en) | 2006-04-07 | 2007-03-28 | Reciprocating pump apparatus |
Country Status (2)
Country | Link |
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US (1) | US20070237651A1 (en) |
JP (1) | JP4164513B2 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090123303A1 (en) * | 2007-11-13 | 2009-05-14 | Maruyama Mfg. Co., Inc. | Reciprocating pump |
US20120144995A1 (en) * | 2010-12-09 | 2012-06-14 | Bayyouk Jacob A | Offset valve bore in a reciprocating pump |
USD705817S1 (en) | 2012-06-21 | 2014-05-27 | S.P.M. Flow Control, Inc. | Center portion of a fluid cylinder for a pump |
USD706397S1 (en) | 2011-08-19 | 2014-06-03 | S.P.M. Flow Control, Inc. | Portion of fluid end |
USD706832S1 (en) | 2012-06-15 | 2014-06-10 | S.P.M. Flow Control, Inc. | Fluid cylinder for a pump |
USD706833S1 (en) | 2012-04-27 | 2014-06-10 | S.P.M. Flow Control, Inc. | Center portion of a fluid cylinder for a pump |
US9945362B2 (en) | 2012-01-27 | 2018-04-17 | S.P.M. Flow Control, Inc. | Pump fluid end with integrated web portion |
CN114017278A (en) * | 2021-11-30 | 2022-02-08 | 黄秀芳 | Reciprocating pump prevents that motor housing is rotatory and sealed motor bearing frame structure |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6450298B2 (en) * | 2015-10-09 | 2019-01-09 | 株式会社丸山製作所 | Reciprocating pump device |
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US3791760A (en) * | 1972-07-31 | 1974-02-12 | Allis Chalmers | Universal in line and end suction pump arrangement |
US3849032A (en) * | 1973-07-02 | 1974-11-19 | Perfect Pump Co | High pressure reciprocating pump |
US4264286A (en) * | 1977-12-27 | 1981-04-28 | Geosource, Inc. | Multiple fluid pump |
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US4900224A (en) * | 1988-03-15 | 1990-02-13 | Jukka Timperi | Centrifugal pump structure |
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US6419459B1 (en) * | 2000-10-02 | 2002-07-16 | Gardner Denver, Inc. | Pump fluid cylinder mounting assembly |
US6447267B1 (en) * | 2000-06-14 | 2002-09-10 | Wabtec Corporation | Locomotive air compressor with motor supported by outside bearing |
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- 2006-04-07 JP JP2006106492A patent/JP4164513B2/en not_active Expired - Fee Related
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2007
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US2514287A (en) * | 1946-10-10 | 1950-07-04 | Ajax Iron Works | Compound engine conversion unit |
US3791760A (en) * | 1972-07-31 | 1974-02-12 | Allis Chalmers | Universal in line and end suction pump arrangement |
US3849032A (en) * | 1973-07-02 | 1974-11-19 | Perfect Pump Co | High pressure reciprocating pump |
US4264286A (en) * | 1977-12-27 | 1981-04-28 | Geosource, Inc. | Multiple fluid pump |
US4494415A (en) * | 1982-03-25 | 1985-01-22 | Hydra-Rig, Incorporated | Liquid nitrogen pump |
US4566370A (en) * | 1983-01-18 | 1986-01-28 | Uraca Pumpenfabrik Gmbh & Co. Kg | Piston pump arrangement |
US4900224A (en) * | 1988-03-15 | 1990-02-13 | Jukka Timperi | Centrifugal pump structure |
US5339779A (en) * | 1990-10-26 | 1994-08-23 | Zettner Michael L | Piston connection for a reciprocating piston engine |
US6447267B1 (en) * | 2000-06-14 | 2002-09-10 | Wabtec Corporation | Locomotive air compressor with motor supported by outside bearing |
US6419459B1 (en) * | 2000-10-02 | 2002-07-16 | Gardner Denver, Inc. | Pump fluid cylinder mounting assembly |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090123303A1 (en) * | 2007-11-13 | 2009-05-14 | Maruyama Mfg. Co., Inc. | Reciprocating pump |
US8246319B2 (en) * | 2007-11-13 | 2012-08-21 | Maruyama Mfg. Co., Inc. | Reciprocating pump |
US20120144995A1 (en) * | 2010-12-09 | 2012-06-14 | Bayyouk Jacob A | Offset valve bore in a reciprocating pump |
US20120183424A1 (en) * | 2010-12-09 | 2012-07-19 | Bayyouk Jacob A | Offset valve bore for a reciprocating pump |
US8662865B2 (en) * | 2010-12-09 | 2014-03-04 | S.P.M. Flow Control, Inc. | Offset valve bore in a reciprocating pump |
US8662864B2 (en) * | 2010-12-09 | 2014-03-04 | S.P.M. Flow Control, Inc. | Offset valve bore in a reciprocating pump |
US8668470B2 (en) * | 2010-12-09 | 2014-03-11 | S.P.M. Flow Control, Inc. | Offset valve bore for a reciprocating pump |
US9989044B2 (en) * | 2010-12-09 | 2018-06-05 | S.P.M. Flow Control, Inc. | Offset valve bore in a reciprocating pump |
AU2011338305B2 (en) * | 2010-12-09 | 2016-09-15 | S.P.M. Flow Control, Inc. | Offset valve bore in a reciprocating pump |
US9784262B2 (en) * | 2010-12-09 | 2017-10-10 | S.P.M. Flow Control, Inc. | Offset valve bore in a reciprocating pump |
US20140322033A1 (en) * | 2010-12-09 | 2014-10-30 | S.P.M. Flow Control, Inc. | Offset valve bore in a reciprocating pump |
AU2011338323B2 (en) * | 2010-12-09 | 2016-09-08 | S.P.M. Flow Control, Inc. | Offset valve bore for a reciprocating pump |
USD706397S1 (en) | 2011-08-19 | 2014-06-03 | S.P.M. Flow Control, Inc. | Portion of fluid end |
US9945362B2 (en) | 2012-01-27 | 2018-04-17 | S.P.M. Flow Control, Inc. | Pump fluid end with integrated web portion |
US10330097B2 (en) | 2012-01-27 | 2019-06-25 | S.P.M. Flow Control, Inc. | Pump fluid end with integrated web portion |
US11401930B2 (en) | 2012-01-27 | 2022-08-02 | Spm Oil & Gas Inc. | Method of manufacturing a fluid end block with integrated web portion |
USD706833S1 (en) | 2012-04-27 | 2014-06-10 | S.P.M. Flow Control, Inc. | Center portion of a fluid cylinder for a pump |
USD706832S1 (en) | 2012-06-15 | 2014-06-10 | S.P.M. Flow Control, Inc. | Fluid cylinder for a pump |
USD705817S1 (en) | 2012-06-21 | 2014-05-27 | S.P.M. Flow Control, Inc. | Center portion of a fluid cylinder for a pump |
CN114017278A (en) * | 2021-11-30 | 2022-02-08 | 黄秀芳 | Reciprocating pump prevents that motor housing is rotatory and sealed motor bearing frame structure |
Also Published As
Publication number | Publication date |
---|---|
JP4164513B2 (en) | 2008-10-15 |
JP2007278197A (en) | 2007-10-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MARUYAMA MFG. CO., INC., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TOJO, NOBUO;REEL/FRAME:019149/0495 Effective date: 20070314 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |