公开(公告)号：CA2422039A1

公开(公告)日：2002-03-21

申请号：CA2422039

申请日：2001-09-13

Applicant: NAT OILWELL NORWAY AS

Inventor： MOE MAGNE ,  KYLLINGSTAD AGE

IPC: F04B1/14 ,  F04B9/04 ,  F04B11/00

Abstract: A piston engine in the form of a piston pump or a piston engine (motor) comprises two or more piston cylinders (14b, 14c), preferably positioned wit h the same angular distances of 180 degrees for two cylinders, 120 degrees for three cylinders etc. with regards to an axis, and each comprising a reciprocating piston with a projecting piston rod (18b, 18c). Via the piston rods (18b, 18c), each piston is given a controlled displacement matched to t he controlled, given displacement of another or other pistons. The control mean s is rotatable and influences the projecting outer end portions of the piston rods or parts fitted to these, for instance rotatable rollers (20b, 20c). By a piston pump of this type, the piston are to contribute to impelling a fluid flow, while a piston engine of this type shall be designed to be driven by a fluid flow. Operating conditions are aimed at which give a more even volume flow, i.e. without any significant fluctuations. For this purpose, said rotatable control means is designed with an encircling cam surface (52) whic h the piston rod ends abut via the peripheral surface of said rotatable roller s (20b, 20c). According to a feature of a method associated with the applicati on of such a piston engine, each piston may with advantage be driven at a constant speed through part of its power stroke.

公开(公告)号：CA2685799C

公开(公告)日：2014-01-07

申请号：CA2685799

申请日：2008-04-21

Applicant: NAT OILWELL NORWAY AS

Inventor： KYLLINGSTAD AGE

IPC: G01M3/24

Abstract: A method for detection of a malfunction related to a fluid affected component of a piston machine (1), where the method includes: - attaching a vibration sensor to or near at least one valve block (14', 14", 14'''), of the piston machine (1); - measuring the vibrations from the valve block (14', 14", 14'''); - presenting the obtained vibration signal from the vibration sensor (16', 16", 16''') for analysis by a human or a computer; and - analyzing the signal with respect to revealing a malfunction related to a fluid affected component of the piston machine (1).

公开(公告)号：NO331105B1

公开(公告)日：2011-10-10

申请号：NO20072230

申请日：2007-04-30

Applicant: NAT OILWELL NORWAY AS

Inventor： KYLLINGSTAD AGE

IPC: G01M3/24 ,  F04B51/00

公开(公告)号：CA2697016A1

公开(公告)日：2009-02-26

申请号：CA2697016

申请日：2008-07-25

Applicant: NAT OILWELL NORWAY AS

Inventor： KYLLINGSTAD AGE

IPC: G01M3/26 ,  F04B51/00

Abstract: A method for detection of a fluid leak related to at least one piston machine (1), where the method includes: - attaching a pressure sensor (18, 24) to at least a pressure side of the at least one piston machine (1); - measuring the pressure on the pressure side of the at least one piston machine (1); - attaching a transmitter (28) to the at least one piston ma-chine (1), said transmitter (28) rendering a signal for cal-culating the rotational speed of the at least one piston ma-chine (1); - calculating the speed of the at least one piston machine (1); - calculating the sum of nominal flow rates from all piston machines(1); - calculating a flow rate compensation factor; - calculating a normalized pressure (42) to be equal to the discharge pressure multiplied by the said compensation factor for the flow rate; and - monitoring the normalized pressure (42) to detect a leak-age.

公开(公告)号：NO20072236A

公开(公告)日：2008-10-31

申请号：NO20072236

申请日：2007-04-30

Applicant: NAT OILWELL NORWAY AS

Inventor： KYLLINGSTAD AGE

IPC: G01M3/24 ,  F04B51/00

CPC classification number: G01M3/025 ,  G01M15/12

公开(公告)号：AT388301T

公开(公告)日：2008-03-15

申请号：AT05754084

申请日：2005-06-20

Applicant: NAT OILWELL NORWAY AS

Inventor： KYLLINGSTAD AGE

IPC: E21B20060101 ,  E21B47/18

Abstract: A method of filtering out pressure noise generated by one or more piston pumps, where each pump is connected to a common downstream piping system, and where the discharge pressure is measured by a pressure sensitive gauge, wherein the instantaneous angular position(s) of the pump(s)' crankshaft or actuating cam is/are measured simultaneously with the discharge pressure and used as fundamental variables in an adaptive mathematical noise model.

公开(公告)号：CA2571190A1

公开(公告)日：2006-01-05

申请号：CA2571190

申请日：2005-06-20

Applicant: NAT OILWELL NORWAY AS

Inventor： KYLLINGSTAD AGE

IPC: E21B20060101 ,  E21B47/18

Abstract: A method of filtering out pressure noise generated by one or more piston pumps, where each pump is connected to a common downstream piping system, and where the discharge pressure is measured by a pressure sensitive gauge, wherein the instantaneous angular position(s) of the pump(s)' crankshaft or actuating cam is/are measured simultaneously with the discharge pressure and used as fundamental variables in an adaptive mathematical noise model.

公开(公告)号：BR0308611A

公开(公告)日：2005-02-09

申请号：BR0308611

申请日：2003-03-18

Applicant: NAT OILWELL NORWAY AS

Inventor： MOE MAGNE MATHIAS ,  KYLLINGSTAD AGE

IPC: F04B53/10 ,  F16K15/06 ,  F04B39/10 ,  F16K15/02

公开(公告)号：AU2001294413B2

公开(公告)日：2004-11-25

申请号：AU2001294413

申请日：2001-09-13

Applicant: NAT OILWELL NORWAY AS

Inventor： KYLLINGSTAD AGE ,  MOE MAGNE

IPC: F04B1/14 ,  F04B9/04 ,  F04B11/00 ,  F04B009/04 ,  F04B011/00

Abstract: A piston engine in the form of a piston pump or a piston engine (motor) comprises two or more piston cylinders ( 14 b, 14 c), preferably positioned with the same angular distances of 180 degrees for two cylinders, 120 degrees for three cylinders etc. with regards to an axis, and each comprising a reciprocating piston with a projecting piston rod ( 18 b, 18 c). Via the piston rods ( 18 b, 18 c), each piston is given a controlled displacement matched to the controlled, given displacement of another or other pistons. The control means is rotatable and influences the projecting outer end portions of the piston rods or parts fitted to these, for instance rotatable rollers ( 20 b, 20 c). By a piston pump of this type, the pistons are to contribute to impelling a fluid flow, while a piston engine of this type shall be designed to be driven by a fluid flow. Operating conditions are aimed at which give a more even volume flow, i.e. without any significant fluctuations. For this purpose, said rotatable control means is designed with an encircling cam surface ( 52 ) which the piston rod ends abut via the peripheral surface of said rotatable rollers ( 20 b, 20 c). According to a feature of a method associated with the application of such a piston engine, each piston may with advantage be driven at a constant speed through part of its power stroke.

公开(公告)号：AU9441301A

公开(公告)日：2002-03-26

申请号：AU9441301

申请日：2001-09-13

Applicant: NAT OILWELL NORWAY AS

Inventor： MOE MAGNE ,  KYLLINGSTAD AGE

IPC: F04B1/14 ,  F04B9/04 ,  F04B11/00

Abstract: A piston engine in the form of a piston pump or a piston engine (motor) comprises two or more piston cylinders ( 14 b, 14 c), preferably positioned with the same angular distances of 180 degrees for two cylinders, 120 degrees for three cylinders etc. with regards to an axis, and each comprising a reciprocating piston with a projecting piston rod ( 18 b, 18 c). Via the piston rods ( 18 b, 18 c), each piston is given a controlled displacement matched to the controlled, given displacement of another or other pistons. The control means is rotatable and influences the projecting outer end portions of the piston rods or parts fitted to these, for instance rotatable rollers ( 20 b, 20 c). By a piston pump of this type, the pistons are to contribute to impelling a fluid flow, while a piston engine of this type shall be designed to be driven by a fluid flow. Operating conditions are aimed at which give a more even volume flow, i.e. without any significant fluctuations. For this purpose, said rotatable control means is designed with an encircling cam surface ( 52 ) which the piston rod ends abut via the peripheral surface of said rotatable rollers ( 20 b, 20 c). According to a feature of a method associated with the application of such a piston engine, each piston may with advantage be driven at a constant speed through part of its power stroke.