US20120294746A1 - Cylinder head for a pump - Google Patents
Cylinder head for a pump Download PDFInfo
- Publication number
- US20120294746A1 US20120294746A1 US13/475,589 US201213475589A US2012294746A1 US 20120294746 A1 US20120294746 A1 US 20120294746A1 US 201213475589 A US201213475589 A US 201213475589A US 2012294746 A1 US2012294746 A1 US 2012294746A1
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- United States
- Prior art keywords
- cylinder
- chamber
- manifold
- outlet
- cylinder head
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Classifications
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- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
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- 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
- F04B53/007—Cylinder heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0469—Other heavy metals
- F05C2201/0475—Copper or alloys thereof
- F05C2201/0481—Brass (Cu/Zn alloy)
Definitions
- the present invention relates to a cylinder head for a pump, such as a pressure washer pump.
- Cylinder heads generally include an inlet manifold for receiving a low pressure fluid and directing the low pressure fluid to the pump, an outlet manifold for receiving a pressurized fluid from the pump and directing the pressurized fluid to an outlet, and a pressure chamber between the inlet manifold and the outlet manifold.
- the pump includes pistons and cylinders for pressurizing the fluid and valves in line with the pistons and cylinders for selectively directing fluid from the inlet manifold to the cylinders.
- the inlet manifold and pressure chamber form passages in line with the cylinders for receiving the valves and are formed from a single piece of a single material, along with the outlet manifold.
- a cylinder head may generally include an inlet manifold for receiving a low pressure fluid and for directing the low pressure fluid to a cylinder chamber, the inlet manifold being formed as a single piece, and an outlet manifold for receiving a pressurized fluid from the cylinder chamber and for directing the pressurized fluid to an outlet, the outlet manifold being formed as a single piece separate from the inlet manifold.
- the cylinder head may also include a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold for receiving the low pressure fluid from the inlet manifold and directing the low pressure fluid to the cylinder chamber, and for receiving the pressurized fluid from the cylinder chamber and directing the pressurized fluid to the outlet manifold.
- the pressure chamber may be formed as a single piece separate from the inlet manifold and separate from the outlet manifold, the pressure chamber being formed of a first material. At least one of the inlet manifold and the outlet manifold may be formed of a second material different than the first material.
- a pump may generally include a piston, a cylinder block at least partially defining a cylinder chamber receiving the piston, and a cylinder head coupled to the cylinder block.
- the cylinder head may include an inlet manifold for receiving a low pressure fluid and directing the low pressure fluid to the cylinder chamber, the inlet manifold being formed as a single piece, and an outlet manifold for receiving a pressurized fluid from the cylinder chamber and directing the pressurized fluid to an outlet, the outlet manifold being formed as a single piece separate from the inlet manifold.
- the cylinder head may also include a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold and in fluid communication with the cylinder chamber for receiving the low pressure fluid from the inlet manifold and directing the low pressure fluid to the cylinder chamber and for receiving the pressurized fluid from the cylinder chamber and directing the pressurized fluid to the outlet manifold.
- the pressure chamber may be formed as a single piece separate from the inlet manifold and from the outlet manifold and may be formed from a first material. At least one of the inlet manifold and the outlet manifold may be formed from a second material different from the first material.
- a pump may generally include a piston, a cylinder block at least partially defining a cylinder chamber receiving the piston, the cylinder chamber extending in a longitudinal direction, and a cylinder head coupled to the cylinder block.
- the cylinder head may include an inlet manifold for receiving a low pressure fluid and directing the low pressure fluid to the cylinder chamber, the inlet manifold being formed as a single piece, and an outlet manifold for receiving a pressurized fluid from the cylinder chamber and directing the pressurized fluid to an outlet, the outlet manifold being formed as a single piece separate from the inlet manifold.
- the cylinder head may also include a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold and in fluid communication with the cylinder chamber for receiving the low pressure fluid from the inlet manifold and directing the low pressure fluid to the cylinder chamber and for receiving the pressurized fluid from the cylinder chamber and directing the pressurized fluid to the outlet manifold.
- the pressure chamber may be formed as a single piece separate from the inlet manifold and from the outlet manifold.
- the pressure chamber may be formed from a first material including brass.
- the cylinder head may also include an inlet valve positioned in the cylinder head for controlling flow of low pressure fluid from the inlet manifold to the pressure chamber, the inlet valve being oriented along an axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber.
- the cylinder head may also include an outlet valve positioned in the cylinder head for controlling flow of pressurized fluid from the pressure chamber to the outlet, the outlet valve being oriented along an axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the pressurized fluid flows through the outlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber.
- the inlet manifold and the outlet manifold may be formed from a second material including aluminum.
- FIG. 1 is a perspective view of a prior art pump having a cylinder head.
- FIG. 2 is a top view of the prior art pump shown in FIG. 1 .
- FIG. 3 is a top view of a pump having a cylinder head according to one embodiment of the invention.
- FIG. 4 is a cross section of the pump taken along line 4 - 4 of FIG. 3 .
- FIG. 5 is a left side view of the pump shown in FIG. 3 .
- FIG. 6 is a front view of the pump shown in FIG. 3 .
- FIG. 7 is rear view of the pump shown in FIG. 3 .
- FIGS. 1-2 illustrate a prior art cylinder head 10 for a pressure washer pump 12 .
- the cylinder head 10 includes an inlet manifold 14 , an outlet manifold 16 and a pressure chamber 18 .
- the inlet manifold 14 , the outlet manifold 16 and the pressure chamber 18 are formed as a single piece from brass, which is represented by stippled shading. Brass is selected to handle the pressure of the water in the pressure chamber 18 .
- the pressure chamber 18 houses pistons and corresponding valves, which are oriented and arranged substantially in line with each other along an axis A parallel to a direction in which the pistons reciprocate.
- the inlet manifold 14 is positioned substantially on top of, i.e., in line with, the pistons and valves along the axis A to direct inlet water to the valves and pistons.
- FIGS. 3-7 illustrate a pump 20 having a cylinder head 22 according to one embodiment of the invention.
- the cylinder head 22 includes an inlet manifold 24 , an outlet manifold 26 and a pressure chamber 28 between the inlet manifold 24 and the outlet manifold 26 .
- the inlet manifold 24 and the outlet manifold 26 are formed from a first material and the pressure chamber 28 is formed from a second material, which is different from the first material.
- the second material is represented with stippled shading.
- the second material is stronger (i.e., designed to withstand higher pressures) than the material used to form the inlet manifold 24 and the outlet manifold 26 .
- the inlet manifold 24 and the outlet manifold 26 are formed of aluminum and the pressure chamber 28 is formed from brass. In other embodiments, other materials suitable for the pressure to which each part is subjected may be employed.
- the pump 20 also includes a cylinder block 30 to which the pressure chamber 28 is coupled by fasteners 32 , such as bolts.
- fasteners 32 such as bolts.
- three fasteners 32 are employed (see the first and second fasteners 32 in FIG. 3 positioned near the outlet manifold 26 and the third fastener 32 in FIG. 4 positioned near the inlet manifold 24 and beneath a middle lateral outlet 38 of the inlet manifold 24 ).
- other suitable fasteners may be employed, or the pressure chamber 28 and cylinder block 30 may be otherwise suitably coupled.
- the cylinder block 30 and pressure chamber 28 each at least partially define cylinders 34 , which house respective pistons 36 ( FIG. 4 ).
- the pump 20 includes three pistons 36 and three respective cylinders 34 .
- Each piston 36 and cylinder 34 defines an axis B extending in a direction substantially parallel to a direction in which the pistons 36 reciprocate.
- the cylinder block 30 houses a piston actuator 48 for actuating the pistons 36 .
- the inlet manifold 24 includes a low pressure inlet 40 for receiving a low pressure fluid, such as water, and low pressure outlets 38 for directing the low pressure fluid to the respective cylinders 34 .
- the number of low pressure outlets 38 is equal to the number of cylinders 34 .
- At least one of the low pressure outlets 38 is oriented to define a central axis C substantially perpendicular to the axis B of the respective piston 36 and cylinder 34 .
- each of the low pressure outlets 38 are oriented substantially perpendicular to the respective cylinder 34 .
- the pressure chamber 28 includes inlet valves 42 (one shown in FIG. 4 ) positioned therein and positioned adjacent and in fluid communication with respective low pressure outlets 38 for receiving the low pressure fluid from the inlet manifold 24 .
- the pressure chamber 28 may partially define the low pressure outlets 38 .
- the inlet valves 42 are each positioned fluidly between the inlet manifold 24 and the respective cylinder 34 , downstream of the inlet manifold 24 and upstream of the respective cylinder 34 .
- Each inlet valve 42 is oriented along the axis C, in line with and in fluid communication with the respective low pressure inlet 38 and substantially perpendicular to the respective cylinder 34 and axis B. In other words, fluid flows through each inlet valve 42 in a direction substantially parallel to the axis C.
- the inlet valves 42 are one-way check valves that open to enable the pistons 36 to draw the low pressure fluid into the pressure chamber 28 and close to enable the pistons 36 to pressurize the low pressure fluid to a high pressure fluid.
- the pistons 36 then force the high pressure fluid to respective high pressure inlets 44 to the outlet manifold 26 , which in turn deliver the high pressure fluid to a high pressure outlet 46 .
- the high pressure inlets 44 are aligned along a central axis D substantially parallel to the axis C of the respective low pressure outlet 38 and substantially perpendicular to the axis B of the respective piston 36 and cylinder 34 .
- Outlet valves 50 (one is illustrated in FIG. 5 ) are positioned in the outlet manifold 26 in fluid communication with each respective high pressure inlet 44 .
- the outlet valves 50 are aligned with the axis D in a direction substantially parallel to the axis C of the respective low pressure outlet 38 and substantially perpendicular to the axis B of the respective piston 36 and cylinder 34 .
- the outlet valves 50 are one-way check valves that open to enable the pistons 36 to force the high pressure fluid towards the outlet 46 and close to prevent backflow.
- the inlet and outlet valves 42 , 50 and respective low pressure outlet 38 and high pressure inlet 44 are positioned transverse to the pistons 36 and cylinders 34 (in other words, not in line with the pistons 36 and cylinders 34 ), the height of the pressure chamber 28 is reduced and thus the amount of brass, or other suitable pressure-rated material, is reduced. Also, because the valves 42 , 50 and the inlet and outlet manifolds 24 , 26 are adjacent the pistons 36 and cylinders 34 in a transverse direction to the axis B, the inlet and outlet manifolds 24 , 26 can be formed from a different material than the pressure chamber 28 , such as aluminum, further reducing the amount of brass, or other suitable pressure-rated material, needed to form the pressure chamber 28 .
- the invention provides, among other things, a low cost cylinder head having a novel arrangement of parts allowing a portion of the cylinder head to be formed of aluminum.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
A cylinder head for a pump. The pump includes a piston and a cylinder block at least partially defining a cylinder chamber receiving the piston. The cylinder head is couplable to the cylinder block. The cylinder head includes an inlet manifold formed as a single piece, an outlet manifold formed as a single piece separate from the inlet manifold, and a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold formed as a single piece separate from the inlet manifold and separate from the outlet manifold. The pressure chamber is formed of a first material, and at least one of the inlet manifold and the outlet manifold is formed of a second material different than the first material.
Description
- This application claims priority to U.S. Provisional Patent Application No. 61/488,293, filed on May 20, 2011, the entire contents of which are hereby incorporated by reference.
- The present invention relates to a cylinder head for a pump, such as a pressure washer pump.
- Cylinder heads generally include an inlet manifold for receiving a low pressure fluid and directing the low pressure fluid to the pump, an outlet manifold for receiving a pressurized fluid from the pump and directing the pressurized fluid to an outlet, and a pressure chamber between the inlet manifold and the outlet manifold. The pump includes pistons and cylinders for pressurizing the fluid and valves in line with the pistons and cylinders for selectively directing fluid from the inlet manifold to the cylinders. The inlet manifold and pressure chamber form passages in line with the cylinders for receiving the valves and are formed from a single piece of a single material, along with the outlet manifold.
- In one independent embodiment, a cylinder head may generally include an inlet manifold for receiving a low pressure fluid and for directing the low pressure fluid to a cylinder chamber, the inlet manifold being formed as a single piece, and an outlet manifold for receiving a pressurized fluid from the cylinder chamber and for directing the pressurized fluid to an outlet, the outlet manifold being formed as a single piece separate from the inlet manifold. The cylinder head may also include a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold for receiving the low pressure fluid from the inlet manifold and directing the low pressure fluid to the cylinder chamber, and for receiving the pressurized fluid from the cylinder chamber and directing the pressurized fluid to the outlet manifold. The pressure chamber may be formed as a single piece separate from the inlet manifold and separate from the outlet manifold, the pressure chamber being formed of a first material. At least one of the inlet manifold and the outlet manifold may be formed of a second material different than the first material.
- In another independent embodiment, a pump may generally include a piston, a cylinder block at least partially defining a cylinder chamber receiving the piston, and a cylinder head coupled to the cylinder block. The cylinder head may include an inlet manifold for receiving a low pressure fluid and directing the low pressure fluid to the cylinder chamber, the inlet manifold being formed as a single piece, and an outlet manifold for receiving a pressurized fluid from the cylinder chamber and directing the pressurized fluid to an outlet, the outlet manifold being formed as a single piece separate from the inlet manifold. The cylinder head may also include a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold and in fluid communication with the cylinder chamber for receiving the low pressure fluid from the inlet manifold and directing the low pressure fluid to the cylinder chamber and for receiving the pressurized fluid from the cylinder chamber and directing the pressurized fluid to the outlet manifold. The pressure chamber may be formed as a single piece separate from the inlet manifold and from the outlet manifold and may be formed from a first material. At least one of the inlet manifold and the outlet manifold may be formed from a second material different from the first material.
- In a further independent embodiment, a pump may generally include a piston, a cylinder block at least partially defining a cylinder chamber receiving the piston, the cylinder chamber extending in a longitudinal direction, and a cylinder head coupled to the cylinder block. The cylinder head may include an inlet manifold for receiving a low pressure fluid and directing the low pressure fluid to the cylinder chamber, the inlet manifold being formed as a single piece, and an outlet manifold for receiving a pressurized fluid from the cylinder chamber and directing the pressurized fluid to an outlet, the outlet manifold being formed as a single piece separate from the inlet manifold. The cylinder head may also include a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold and in fluid communication with the cylinder chamber for receiving the low pressure fluid from the inlet manifold and directing the low pressure fluid to the cylinder chamber and for receiving the pressurized fluid from the cylinder chamber and directing the pressurized fluid to the outlet manifold. The pressure chamber may be formed as a single piece separate from the inlet manifold and from the outlet manifold. The pressure chamber may be formed from a first material including brass. The cylinder head may also include an inlet valve positioned in the cylinder head for controlling flow of low pressure fluid from the inlet manifold to the pressure chamber, the inlet valve being oriented along an axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber. The cylinder head may also include an outlet valve positioned in the cylinder head for controlling flow of pressurized fluid from the pressure chamber to the outlet, the outlet valve being oriented along an axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the pressurized fluid flows through the outlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber. The inlet manifold and the outlet manifold may be formed from a second material including aluminum.
- Other independent aspects of the invention will become apparent by consideration of the detailed description, claims and accompanying drawings.
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FIG. 1 is a perspective view of a prior art pump having a cylinder head. -
FIG. 2 is a top view of the prior art pump shown inFIG. 1 . -
FIG. 3 is a top view of a pump having a cylinder head according to one embodiment of the invention. -
FIG. 4 is a cross section of the pump taken along line 4-4 ofFIG. 3 . -
FIG. 5 is a left side view of the pump shown inFIG. 3 . -
FIG. 6 is a front view of the pump shown inFIG. 3 . -
FIG. 7 is rear view of the pump shown inFIG. 3 . - Before any independent embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other independent embodiments and of being practiced or of being carried out in various ways.
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FIGS. 1-2 illustrate a priorart cylinder head 10 for apressure washer pump 12. As best illustrated inFIG. 2 , thecylinder head 10 includes aninlet manifold 14, anoutlet manifold 16 and apressure chamber 18. The inlet manifold 14, the outlet manifold 16 and thepressure chamber 18 are formed as a single piece from brass, which is represented by stippled shading. Brass is selected to handle the pressure of the water in thepressure chamber 18. Thepressure chamber 18 houses pistons and corresponding valves, which are oriented and arranged substantially in line with each other along an axis A parallel to a direction in which the pistons reciprocate. Theinlet manifold 14 is positioned substantially on top of, i.e., in line with, the pistons and valves along the axis A to direct inlet water to the valves and pistons. -
FIGS. 3-7 illustrate apump 20 having acylinder head 22 according to one embodiment of the invention. Thecylinder head 22 includes aninlet manifold 24, anoutlet manifold 26 and apressure chamber 28 between theinlet manifold 24 and theoutlet manifold 26. Theinlet manifold 24 and theoutlet manifold 26 are formed from a first material and thepressure chamber 28 is formed from a second material, which is different from the first material. The second material is represented with stippled shading. In particular, the second material is stronger (i.e., designed to withstand higher pressures) than the material used to form theinlet manifold 24 and theoutlet manifold 26. In the illustrated construction, theinlet manifold 24 and theoutlet manifold 26 are formed of aluminum and thepressure chamber 28 is formed from brass. In other embodiments, other materials suitable for the pressure to which each part is subjected may be employed. - The
pump 20 also includes acylinder block 30 to which thepressure chamber 28 is coupled byfasteners 32, such as bolts. In the illustrated embodiment, threefasteners 32 are employed (see the first andsecond fasteners 32 inFIG. 3 positioned near theoutlet manifold 26 and thethird fastener 32 inFIG. 4 positioned near theinlet manifold 24 and beneath a middlelateral outlet 38 of the inlet manifold 24). In other embodiments, other suitable fasteners may be employed, or thepressure chamber 28 andcylinder block 30 may be otherwise suitably coupled. Thecylinder block 30 andpressure chamber 28 each at least partially definecylinders 34, which house respective pistons 36 (FIG. 4 ). In the illustrated embodiment, thepump 20 includes threepistons 36 and threerespective cylinders 34. In other embodiments, one, two, four or more pistons and cylinders may be employed. Eachpiston 36 andcylinder 34 defines an axis B extending in a direction substantially parallel to a direction in which thepistons 36 reciprocate. Thecylinder block 30 houses apiston actuator 48 for actuating thepistons 36. - The
inlet manifold 24 includes alow pressure inlet 40 for receiving a low pressure fluid, such as water, andlow pressure outlets 38 for directing the low pressure fluid to therespective cylinders 34. The number oflow pressure outlets 38 is equal to the number ofcylinders 34. At least one of thelow pressure outlets 38 is oriented to define a central axis C substantially perpendicular to the axis B of therespective piston 36 andcylinder 34. In the illustrated embodiment, each of thelow pressure outlets 38 are oriented substantially perpendicular to therespective cylinder 34. - As best illustrated in
FIG. 4 , thepressure chamber 28 includes inlet valves 42 (one shown inFIG. 4 ) positioned therein and positioned adjacent and in fluid communication with respectivelow pressure outlets 38 for receiving the low pressure fluid from theinlet manifold 24. In some embodiments, thepressure chamber 28 may partially define thelow pressure outlets 38. There is oneinlet valve 42 for eachlow pressure outlet 38. Therefore, in the illustrated embodiment, there are threeinlet valves 42. Theinlet valves 42 are each positioned fluidly between theinlet manifold 24 and therespective cylinder 34, downstream of theinlet manifold 24 and upstream of therespective cylinder 34. Eachinlet valve 42 is oriented along the axis C, in line with and in fluid communication with the respectivelow pressure inlet 38 and substantially perpendicular to therespective cylinder 34 and axis B. In other words, fluid flows through eachinlet valve 42 in a direction substantially parallel to the axis C. - The
inlet valves 42 are one-way check valves that open to enable thepistons 36 to draw the low pressure fluid into thepressure chamber 28 and close to enable thepistons 36 to pressurize the low pressure fluid to a high pressure fluid. Thepistons 36 then force the high pressure fluid to respectivehigh pressure inlets 44 to theoutlet manifold 26, which in turn deliver the high pressure fluid to ahigh pressure outlet 46. Thehigh pressure inlets 44 are aligned along a central axis D substantially parallel to the axis C of the respectivelow pressure outlet 38 and substantially perpendicular to the axis B of therespective piston 36 andcylinder 34. Outlet valves 50 (one is illustrated inFIG. 5 ) are positioned in theoutlet manifold 26 in fluid communication with each respectivehigh pressure inlet 44. Theoutlet valves 50 are aligned with the axis D in a direction substantially parallel to the axis C of the respectivelow pressure outlet 38 and substantially perpendicular to the axis B of therespective piston 36 andcylinder 34. Theoutlet valves 50 are one-way check valves that open to enable thepistons 36 to force the high pressure fluid towards theoutlet 46 and close to prevent backflow. - Because the inlet and
outlet valves low pressure outlet 38 andhigh pressure inlet 44 are positioned transverse to thepistons 36 and cylinders 34 (in other words, not in line with thepistons 36 and cylinders 34), the height of thepressure chamber 28 is reduced and thus the amount of brass, or other suitable pressure-rated material, is reduced. Also, because thevalves pistons 36 andcylinders 34 in a transverse direction to the axis B, the inlet and outlet manifolds 24, 26 can be formed from a different material than thepressure chamber 28, such as aluminum, further reducing the amount of brass, or other suitable pressure-rated material, needed to form thepressure chamber 28. - Thus, the invention provides, among other things, a low cost cylinder head having a novel arrangement of parts allowing a portion of the cylinder head to be formed of aluminum.
- One or more independent features and independent advantages of the invention may be set forth in the following claims:
Claims (27)
1. A cylinder head for a pump, the pump including a piston and a cylinder block at least partially defining a cylinder chamber receiving the piston, the cylinder chamber extending in a longitudinal direction, the cylinder head being couplable to the cylinder block, the cylinder head comprising:
an inlet manifold for receiving a low pressure fluid and for directing the low pressure fluid to the cylinder chamber, the inlet manifold being formed as a single piece;
an outlet manifold for receiving a pressurized fluid from the cylinder chamber and for directing the pressurized fluid to an outlet, the outlet manifold being formed as a single piece separate from the inlet manifold; and
a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold for receiving the low pressure fluid from the inlet manifold and directing the low pressure fluid to the cylinder chamber, and for receiving the pressurized fluid from the cylinder chamber and directing the pressurized fluid to the outlet manifold, the pressure chamber being formed as a single piece separate from the inlet manifold and separate from the outlet manifold, the pressure chamber being formed of a first material;
wherein at least one of the inlet manifold and the outlet manifold is formed of a second material different than the first material.
2. The cylinder head of claim 1 , further comprising an inlet valve positioned in the cylinder head for controlling flow of low pressure fluid from the inlet manifold to the pressure chamber, the inlet valve being oriented along an axis extending transverse to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction transverse to the longitudinal direction of the cylinder chamber.
3. The cylinder head of claim 2 , wherein the inlet valve is oriented along an axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber.
4. The cylinder head of claim 1 , further comprising an outlet valve positioned in the cylinder head for controlling flow of pressurized fluid from the pressure chamber to the outlet, the outlet valve being oriented along an axis extending transverse to the longitudinal direction of the cylinder chamber such that the pressurized fluid flows through the outlet valve in a direction transverse to the longitudinal direction of the cylinder chamber.
5. The cylinder head of claim 4 , wherein the axis is a first axis, and wherein the cylinder head further comprises an inlet valve positioned in the cylinder head for controlling flow of low pressure fluid from the inlet manifold to the pressure chamber, the inlet valve being oriented along a second axis extending transverse to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction transverse to the longitudinal direction of the cylinder chamber.
6. The cylinder head of claim 4 , wherein the outlet valve is oriented along an axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the pressurized fluid flows through the outlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber.
7. The cylinder head of claim 6 , wherein the axis is a first axis, wherein the cylinder head further comprises an inlet valve positioned in the cylinder head for controlling flow of low pressure fluid from the inlet manifold to the pressure chamber, the inlet valve being oriented along a second axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber.
8. The cylinder head of claim 1 , wherein the first material withstands higher pressures than the second material.
9. The cylinder head of claim 1 , wherein the first material includes brass.
10. The cylinder head of claim 1 , wherein the second material includes aluminum.
11. The cylinder head of claim 1 , wherein the first material includes brass and the second material includes aluminum.
12. The cylinder head of claim 1 , wherein the pressure chamber cooperates with the cylinder head to define the cylinder chamber for receiving the piston.
13. The cylinder head of claim 1 , wherein both of the inlet manifold and the outlet manifold are formed of the second material different than the first material.
14. A pump for pressurizing a fluid, the pump comprising:
a piston;
a cylinder block at least partially defining a cylinder chamber receiving the piston;
a cylinder head coupled to the cylinder block, the cylinder head including
an inlet manifold for receiving a low pressure fluid and directing the low pressure fluid to the cylinder chamber, the inlet manifold being formed as a single piece,
an outlet manifold for receiving a pressurized fluid from the cylinder chamber and directing the pressurized fluid to an outlet, the outlet manifold being formed as a single piece separate from the inlet manifold, and
a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold and in fluid communication with the cylinder chamber for receiving the low pressure fluid from the inlet manifold and directing the low pressure fluid to the cylinder chamber and for receiving the pressurized fluid from the cylinder chamber and directing the pressurized fluid to the outlet manifold, the pressure chamber being formed as a single piece separate from the inlet manifold and from the outlet manifold, the pressure chamber being formed from a first material,
wherein at least one of the inlet manifold and the outlet manifold is formed from a second material different from the first material.
15. The pump of claim 14 , wherein the cylinder head further includes an inlet valve positioned in the cylinder head for controlling flow of low pressure fluid from the inlet manifold to the pressure chamber, the inlet valve being oriented along an axis extending transverse to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction transverse to the longitudinal direction of the cylinder chamber.
16. The pump of claim 15 , wherein the inlet valve is oriented along an axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber.
17. The pump of claim 14 , wherein the cylinder head further includes an outlet valve positioned in the cylinder head for controlling flow of pressurized fluid from the pressure chamber to the outlet, the outlet valve being oriented along an axis extending transverse to the longitudinal direction of the cylinder chamber such that the pressurized fluid flows through the outlet valve in a direction transverse to the longitudinal direction of the cylinder chamber.
18. The pump of claim 17 , wherein the axis is a first axis, and wherein the cylinder head further includes an inlet valve positioned in the cylinder head for controlling flow of low pressure fluid from the inlet manifold to the pressure chamber, the inlet valve being oriented along a second axis extending transverse to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction transverse to the longitudinal direction of the cylinder chamber.
19. The pump of claim 17 , wherein the outlet valve is oriented along an axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the pressurized fluid flows through the outlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber.
20. The pump of claim 19 , wherein the axis is a first axis, wherein the cylinder head further includes an inlet valve positioned in the cylinder head for controlling flow of low pressure fluid from the inlet manifold to the pressure chamber, the inlet valve being oriented along a second axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber.
21. The pump of claim 14 , wherein the first material withstands higher pressures than the second material.
22. The pump of claim 14 , wherein the first material includes brass.
23. The pump of claim 14 , wherein the second material includes aluminum.
24. The pump of claim 14 , wherein the first material includes brass and the second material includes aluminum.
25. The pump of claim 14 , wherein the pressure chamber cooperates with the cylinder head to define the cylinder chamber for receiving the piston.
26. The pump of claim 14 , wherein both of the inlet manifold and the outlet manifold are formed of the second material different than the first material.
27. A pump for pressurizing a fluid, the pump comprising:
a piston;
a cylinder block at least partially defining a cylinder chamber receiving the piston, the cylinder chamber extending in a longitudinal direction;
a cylinder head coupled to the cylinder block, the cylinder head including
an inlet manifold for receiving a low pressure fluid and directing the low pressure fluid to the cylinder chamber, the inlet manifold being formed as a single piece,
an outlet manifold for receiving a pressurized fluid from the cylinder chamber and directing the pressurized fluid to an outlet, the outlet manifold being formed as a single piece separate from the inlet manifold,
a pressure chamber positioned fluidly between the inlet manifold and the outlet manifold and in fluid communication with the cylinder chamber for receiving the low pressure fluid from the inlet manifold and directing the low pressure fluid to the cylinder chamber and for receiving the pressurized fluid from the cylinder chamber and directing the pressurized fluid to the outlet manifold, the pressure chamber being formed as a single piece separate from the inlet manifold and from the outlet manifold, the pressure chamber being formed from a first material including brass,
an inlet valve positioned in the cylinder head for controlling flow of low pressure fluid from the inlet manifold to the pressure chamber, the inlet valve being oriented along an axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the low pressure fluid flows through the inlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber, and
an outlet valve positioned in the cylinder head for controlling flow of pressurized fluid from the pressure chamber to the outlet, the outlet valve being oriented along an axis extending substantially perpendicular to the longitudinal direction of the cylinder chamber such that the pressurized fluid flows through the outlet valve in a direction substantially perpendicular to the longitudinal direction of the cylinder chamber,
wherein the inlet manifold and the outlet manifold is formed from a second material including aluminum.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/475,589 US20120294746A1 (en) | 2011-05-20 | 2012-05-18 | Cylinder head for a pump |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161488293P | 2011-05-20 | 2011-05-20 | |
US13/475,589 US20120294746A1 (en) | 2011-05-20 | 2012-05-18 | Cylinder head for a pump |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120294746A1 true US20120294746A1 (en) | 2012-11-22 |
Family
ID=46125271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/475,589 Abandoned US20120294746A1 (en) | 2011-05-20 | 2012-05-18 | Cylinder head for a pump |
Country Status (4)
Country | Link |
---|---|
US (1) | US20120294746A1 (en) |
EP (1) | EP2525097B1 (en) |
CN (1) | CN202883356U (en) |
AU (1) | AU2012100687A4 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD900164S1 (en) * | 2018-12-29 | 2020-10-27 | Nantong Wotell Machinery Manufacturing Co., LTD. | Pump |
USD903718S1 (en) * | 2019-03-04 | 2020-12-01 | Fna Group, Inc. | Pump |
USD904463S1 (en) * | 2019-03-04 | 2020-12-08 | Fna Group, Inc. | Pump |
USD936107S1 (en) * | 2020-01-24 | 2021-11-16 | Fna Group, Inc. | Pressure washer pump |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2711134A (en) * | 1950-07-26 | 1955-06-21 | Infilco Inc | Chemical feeder |
EP1045142A2 (en) * | 1999-04-12 | 2000-10-18 | Siemens Aktiengesellschaft | Pump housing |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3036525A (en) * | 1959-12-16 | 1962-05-29 | Culligan Inc | Chemical feed pump |
US4116364A (en) * | 1976-02-02 | 1978-09-26 | Binks Manufacturing Company | Dispensing system for low stability fluids |
DE2940606C2 (en) * | 1979-10-06 | 1985-12-19 | Woma-Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg | Pump valve head for high pressure pumps |
DE3122091C1 (en) * | 1981-06-03 | 1982-12-16 | Saphirwerk, Industrieprodukte AG Nidau, 2560 Nidau | Submersible piston pump |
US4808092A (en) * | 1986-01-08 | 1989-02-28 | Saphirwerk Industrieprodukte | Precision reciprocating metering pump |
US4784581A (en) * | 1987-01-12 | 1988-11-15 | White Consolidated Industries, Inc. | Compressor head and suction muffler for hermetic compressor |
US6464475B1 (en) * | 2000-04-06 | 2002-10-15 | Idromeccanica Bertolini S.P.A. | Head for pumps in particular of the membrane or piston type and method for its manufacture |
DE10244566B3 (en) * | 2002-09-25 | 2004-06-24 | Danfoss Compressors Gmbh | Cylinder head device for piston compressor e.g. hermetically-sealed refrigeration compressor, has suction gas channel and pressure space on opposite sides of bridge for pressure valve |
DE102008041751A1 (en) * | 2008-09-02 | 2010-03-04 | Robert Bosch Gmbh | High-pressure radial piston pump |
-
2012
- 2012-05-18 AU AU2012100687A patent/AU2012100687A4/en not_active Expired
- 2012-05-18 EP EP12168574.7A patent/EP2525097B1/en active Active
- 2012-05-18 US US13/475,589 patent/US20120294746A1/en not_active Abandoned
- 2012-05-20 CN CN2012203276908U patent/CN202883356U/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2711134A (en) * | 1950-07-26 | 1955-06-21 | Infilco Inc | Chemical feeder |
EP1045142A2 (en) * | 1999-04-12 | 2000-10-18 | Siemens Aktiengesellschaft | Pump housing |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD900164S1 (en) * | 2018-12-29 | 2020-10-27 | Nantong Wotell Machinery Manufacturing Co., LTD. | Pump |
USD903718S1 (en) * | 2019-03-04 | 2020-12-01 | Fna Group, Inc. | Pump |
USD904463S1 (en) * | 2019-03-04 | 2020-12-08 | Fna Group, Inc. | Pump |
USD936107S1 (en) * | 2020-01-24 | 2021-11-16 | Fna Group, Inc. | Pressure washer pump |
Also Published As
Publication number | Publication date |
---|---|
AU2012100687A4 (en) | 2012-06-14 |
EP2525097B1 (en) | 2019-11-27 |
CN202883356U (en) | 2013-04-17 |
EP2525097A1 (en) | 2012-11-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TECHTRONIC OUTDOOR PRODUCTS TECHNOLOGY LIMITED, BE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ESCHRICH, SVEN;REEL/FRAME:028297/0522 Effective date: 20120519 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |