ES279783A1 - Improvements in variable displacement hydraulic pumps (Machine-translation by Google Translate, not legally binding) - Google Patents

Improvements in variable displacement hydraulic pumps (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES279783A1
ES279783A1 ES0279783A ES279783A ES279783A1 ES 279783 A1 ES279783 A1 ES 279783A1 ES 0279783 A ES0279783 A ES 0279783A ES 279783 A ES279783 A ES 279783A ES 279783 A1 ES279783 A1 ES 279783A1
Authority
ES
Spain
Prior art keywords
cylindrical
translation
fluid chamber
cylindrical block
legally binding
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.)
Expired
Application number
ES0279783A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weatherhead Co
Original Assignee
Weatherhead Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weatherhead Co filed Critical Weatherhead Co
Priority to ES0279783A priority Critical patent/ES279783A1/en
Publication of ES279783A1 publication Critical patent/ES279783A1/en
Expired legal-status Critical Current

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  • Reciprocating Pumps (AREA)

Abstract

Improvements in variable displacement hydraulic pumps, characterized in that they comprise a housing for the pump forming a fluid chamber, an inlet opening to said fluid chamber, an outlet opening in said pump housing, a cylindrical block mounted for a movement slidable within said fluid chamber along a longitudinal axis, a series of cylindrical bores in said cylindrical block, a piston within each of said cylindrical bores, means in said pump housing for applying a movement progressively alternative to said pistons in said cylindrical bores between advanced and retracted positions, means connecting each of said cylindrical bores with said outlet opening, an inlet opening for each cylindrical bore of the cylindrical block next to the piston head when it is in the retracted position, characterizing these pumps are also known because means are provided for diverting said cylindrical block in one direction in order to reduce the effective area of said cylindrical bore entry openings, as well as means for diverting said cylindrical block in the other direction and reduce thus the effective length of the pumping stroke of the pistons. (Machine-translation by Google Translate, not legally binding)
ES0279783A 1962-08-03 1962-08-03 Improvements in variable displacement hydraulic pumps (Machine-translation by Google Translate, not legally binding) Expired ES279783A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES0279783A ES279783A1 (en) 1962-08-03 1962-08-03 Improvements in variable displacement hydraulic pumps (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES0279783A ES279783A1 (en) 1962-08-03 1962-08-03 Improvements in variable displacement hydraulic pumps (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES279783A1 true ES279783A1 (en) 1963-02-01

Family

ID=34561024

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0279783A Expired ES279783A1 (en) 1962-08-03 1962-08-03 Improvements in variable displacement hydraulic pumps (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES279783A1 (en)

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