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Pump

A shell and component technology, applied in the field of pumps, can solve the problems of high overall weight and cost

Inactive Publication Date: 2017-12-26
LEUCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the head is made entirely of steel and / or brass, the overall weight of the pump and the corresponding cost are prohibitive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] With reference to the drawings, 1 generally designates a pump for handling liquids, in particular water, for example to be used as cleaning liquids inside cleaning machines, such as small high pressure water jetting machines.

[0033] Pump 1 is a positive displacement piston type.

[0034] The pump 1 comprises a housing 2 or crankcase, which houses the drive means for moving the pistons of the pump 1 . The head 4 is fixed on the housing 2 by a fixing element, which includes a plurality of bolts 3 , for example. The housing 2 can be produced, for example, from aluminum, while the head 4 can be produced from brass.

[0035] The pump 1 comprises a plurality of pistons 5, one of which can be image 3 see in. Each piston 5 can slide in the direction of movement A within the corresponding opening 6 to vary the volume of the chamber 7 obtained in the head 4 at one end of the piston 5 . In particular, the chamber 7 is obtained at least partially in the head 4 so that the co...

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PUM

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Abstract

A pump (1) comprises at least one piston (5) slidable within an opening (6) along a movement direction (A) in order to vary the volume of a chamber (7). The pump (1) further comprises a casing (2) within which a driving device is housed for moving the piston (5), and a head (4) within which the chamber (7) is at least partially obtained, the chamber (7) being partially delimited by the piston (5). A high pressure sealing element (26) is located in a proximal position with respect to the chamber (7) and a low pressure sealing element (27) is located in a distal position with respect to the chamber (7) to stop any quantities of liquid that the high pressure sealing element (26) has let through. The high pressure sealing element (26) is housed within the head (4) and the low pressure sealing element (27) is housed within the casing (2).

Description

technical field [0001] The invention relates to a pump. In particular, the invention relates to a piston pump suitable for handling liquids, especially water. The piston pump according to the invention can be used inside cleaning machines, such as small high pressure water jet machines. Background technique [0002] Piston pumps are known which comprise a plurality of pistons which are movable within respective cylinders to increase or decrease the volume of respective chambers in order to pump water into or out of the respective chambers. [0003] Each piston is associated with a high-pressure seal and a low-pressure seal for preventing the flow of water from the corresponding chamber in which the chamber is obtained, out of the head of the pump. In prior art piston pumps, the seal associated with each piston is associated with at least one spacer, usually two spacers. The at least one spacer supporting the seal typically fits in a fixed position entirely within the head...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B53/00F04B53/16
CPCF04B1/0439F04B1/0448F04B53/02F04B1/005F04B39/042F04B53/143F16J15/002F16J15/324
Inventor F·佩德罗尼G·帕代尔尼
Owner LEUCO