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CPC field-specific training

F01P "Cooling of machines or engines in general; cooling of

internal combustion engines"

Dragos Luta June 2018Examiner, European Patent Office

European Patent Office 2

Table of contents

▪ Introduction

▪ What and where to classify; neighbouring fields

▪ Criteria for including/excluding documents

▪ Specific terminology

▪ Overall structure

▪ Examples


Introduction

▪ 197 main- and subgroups,

− thereof 6 main groups and 8 main indexing groups,

− including 106 indexing subgroups

▪ 45 963 documents have a confirmed CPC classification in F01P,

(database EPODOC 25.05.2018).

▪ Note: improvement is still necessary, e.g. F01P7/16 includes

5 subgroups and one indexing subgroup and comprises

9 267 documents


Introduction

Where to find…

▪ CPC classification scheme and definitions

− https://www.cooperativepatentclassification.org/cpcSchemeAnd

Definitions/table.html

− https://worldwide.espacenet.com/classification?locale=en_EP

− CPC scheme also available in +CLA (EPOQUE Net)

▪ Classification rules

− IPC Guide:

http://www.wipo.int/export/sites/www/classifications/ipc/en/guide/

guide_ipc.pdf

− CPC Guide:

https://www.cooperativepatentclassification.org/publications/Guide

ToTheCPC.pdf

− CPC training material:

https://epoxy.epo.org/ and on www.cpcinfo.org

(Publications and Training sections)

https://www.cooperativepatentclassification.org/cpcSchemeAndDefinitions/table.htmlhttps://worldwide.espacenet.com/classification?locale=en_EPhttp://www.wipo.int/export/sites/www/classifications/ipc/en/guide/guide_ipc.pdfhttps://www.cooperativepatentclassification.org/publications/GuideToTheCPC.pdfhttps://epoxy.epo.org/http://www.cpcinfo.org/


Table of contents

▪ Introduction





▪ Examples


What and where to classify; neighbouring fields

The aim of classification

▪ Retrieval of technical subject-matter (IPC-Guide VIII.75.)

▪ When classifying, keep in mind how a search examiner searches,

i.e. what is useful for search and what is not.

▪ Often, the invention information relates only to a particular field of

use, and the application-oriented places are intended to cover

completely the classification of such matter.

▪ The function-oriented places embrace a wider concept in which the

constructional or functional characteristics of a subject are applicable

to more than one field of use, or in which the application to a

particular field of use is not considered invention information (IPC-

Guide).

▪



Neighbouring fieldsThis subclass/group does not cover:

▪ Arrangements in connection with cooling of propulsion units in

vehicles (including cooling of electric vehicles) B60K11/00

▪ Heat-exchange or heat-storage materials C09K5/00

▪ Cooling of gas-turbine engines F02C7/12

▪ Heat exchange in general, radiators F28

▪ Cogeneration F25B27/02

▪ Profiting from the waste heat of the exhaust gases

F02G5/02, F01N5/02

▪ Cooling of machine tools B23Q1/00

▪ Cooling of electric machines H02K9/00

▪ Cooling by lubricant when the lubrication aspect predominates F01M

Cooling of machines or engines

in general; cooling of internal

combustion engines



The main kinds of search

▪ Figure-feature search,

i.e. a search of features shown in figures

▪ Text-feature search,

i.e. a search for written features

When flipping through documents, in F01P, the search examiner often

has to deal with very schematic figures, especially in F01P7-Control,

i.e. text search and classification is very important.


Table of contents

Cooling of machines or engines in

general; cooling of internal combustion

engines

▪ Introduction





▪ Examples


Specific terminology

(see Notes under the title "F01P")

http://www.cooperativepatent

classification.org/cpc/scheme/F/

scheme-F01P.pdf

https://www.cooperativepatent

classification.org/cpc/definition/F/

definition-F01P.pdfMechanical

Engineering

Machines and

engines in general,

for engine plants in

general and for

steam engines

Cooling of

machines or

engines in general;

cooling of internal

combustion

engines

A device for continuously

converting fluid energy into

mechanical power, e.g. steam

piston engines or steam turbines.

F 01 P

A device which could equally be an

engine and a pump, and not a device

which is restricted to an engine or

one which is restricted to a pump.

http://www.cooperativepatentclassification.org/cpc/scheme/F/scheme-F01P.pdfhttps://www.cooperativepatentclassification.org/cpc/definition/F/definition-F01P.pdf


Specific terminology

▪ • "air" also includes other gaseous cooling fluids;

▪ • "liquid cooling" also includes cooling where liquid is used as the

heat transferring fluid between parts to be cooled and the

▪ air, e.g. using radiators;

▪ • "air cooling" means direct air cooling and thus excludes indirect air

cooling occurring in liquid cooling systems as explained herefore;

▪ • "cooling-air" includes directly or indirectly acting cooling-air.


Table of contents

▪ Introduction





▪ Examples


Overall structure (1/2)

F01P1/00 (255) Air cooling

F01P3/00 (431) Liquid cooling

F01P5/00 (47)

Pumping cooling-air or liquid coolants (controlling

circulation or supply of coolants by influencing

drive of pumps F01P7/00)

F01P7/00 (90) Controlling of coolant flow

F01P9/00 (622)

Cooling having pertinent characteristics not

provided for in, or of interest apart from, groups

F01P1/00 – F01P7/00)

F01P11/00 (481)

Component parts, details, or accessories not

provided for in, or of interest apart from, groups

F01P1/00 – F01P9/00


Overall structure (2/2)

F01P2023/00 (387) Signal processing; Details thereof

F01P2025/00 (100) Measuring

F01P2031/00 (568) Fail safe

F01P2037/00 (148) Controlling

F01P2050/00 (34) Applications

F01P2060/00 (363) Cooling circuits using auxiliaries

F01P2070/00 (517) Details


Table of contents

▪ Introduction





▪ Examples


Examples

F01P1/00 Air cooling / Example

▪ F01P 2001/023 . . Cooling cylinders

(F01P 2003/022 takes precedence)

▪ F01P 2001/026 . . Cooling cylinder

heads (F01P 2003/025 takes

precedence)

▪ W02006137505

− F01P1/02 / CCI

− F01P2001/023 /CCA

− F01P2001/026 /CCA


Examples

F01P3/00 Liquid cooling / Example


Examples

F01P3/00 Liquid cooling / Example

US2011114040A spacer (14) fitted inside a water jacket (13) which is

formed to surround peripheries of cylinder bores (12a)

in a cylinder block (11) of an internal combustion

engine includes: a spacer main body part (14a)

partitioning the water jacket (13) into an upper cooling

water passage (13c) and a lower cooling water

passage (13d); and a cooling water outlet and inlet

port part (14b, 14c) continuing to the spacer main

body part (14a).

F01P2003/021/CCA

US2006065218The engine includes cooling oil jackets surrounding the

spark plugs in the cylinder head, a thermostat attached

to the front surface of the crankcase independently of

an oil filter, and an oil temperature sensor disposed on

a rear face of the cylinder block above the crankcase in

an oil supply path formed on the cylinder rear face for

supplying oil to the oil jackets

F01P2003/022/CCA

US2011271916 The internal combustion engine has a cylinder, a

cylinder head and a liquid cooling system, where two

coolant jackets (2,8) are integrated in the cylinder

head. One coolant jacket is arranged at the outer side

of the cylinder head, where another coolant jacket is

arranged at the inner side of the cylinder head. The

outer side coolant jacket belongs a cooling water

circuit, where the inner side coolant jacket belongs

an *' oil circuit.

F01P2003/024/CCA

DE102010045217 The circuit (1) has a cylinder crankcase

(3) provided with two cylinder blocks (3a) and

associated with cylinder heads (4). The cylinder

crankcase and the cylinder heads run parallel to each

other. A cylinder head partial circuit (6) is acted upon

a coolant pump (7) with coolant.

F01P2003/027/CCA

US2011265742

F01P2003/028/CCA

US2002014212 An effective and even cooing of the internal

combustion engine is ensured in such a way that

the oil cooler is integrated in the cooling ribs of the

internal combustion engine and two mutually

separated oil conduit systems are provided in the

cylinder head, namely a lubricating oil system and

a cooing oil system

F01P3/04/CCI


Examples

F01P5/00 Pumping cooling air or liquid coolants

Limited to fan shroud,

ducting to or from heat

exchangers F01P11/10

DE102006049076

F01P 5/06

F04D29/164 sealing for axial fans


Examples

F01P7/00 Controlling of coolant flow

US2012097465

A method is provided for controlling

operation of an adjustable shutter

configured to be operated between and

inclusive of fully-closed and

fully-opened positions for

cooling a powertrain

in a vehicle having a

grille opening.


Examples

F01P7/00 Controlling of coolant flow

EP1967714

G05D23/2427

Control of temperature

F01P2070/04

Using electrical

heating elements

European Patent Office

Cooling having pertinent characteristics not provided for in,

or of interest apart from groups F01P1/00-F01P7/00

22

Examples

F01P9

DE102010036502


Examples

F01P11/00

DE102010018089

The valve arrangement has a valve (7) by

which a primary ventilation line (4) and a

secondary ventilation lines (3) are

combined to a joint. The primary and a

secondary ventilation lines pen in a

reservoir. The primary ventilation line has

a constant fluidic connection for the

reservoir. The valve has a valve housing

(8) with a ball valve (9).

Component parts, details, or accessories not provided for in,

or for interest apart from, groups F01P1/00-F01P9/00


Examples

F01P11/00

US2011259548

An oil-cooling structure is disposed inside

the first radiator tank.

when presented within lubrication circuit

allocate F01M

Component parts, details, or accessories not provided for in, or for

interest apart from, groups F01P1/00-F01P9/00


Examples

Indexing groups

Additional

information

F01P 2023/00 Signal processing: Details thereofF01P 2023/08 Microprocessor; MicrocomputerF01P 2025/00 MeasuringF01P 2025/04 PressureF01P 2025/06 for determining flowF01P 2025/08 Temperature

F01P 2025/60 Operating parameters

F01P 2025/70 Level

F01P 2025/80 Concentration anti-freeze

F01P 2031/00 Fail safeF01P 2031/16 using melting materialsF01P 2031/18 Detecting fluid leaksF01P 2031/20 Warning devicesF01P 2031/22 using warning lampsF01P 2031/24 for freezingF01P 2031/30 Cooling after the engine is stoppedF01P 2031/32 Deblocking of damaged thermostatF01P 2031/34 Limping homeF01P 2031/36 Failure of coolant pump

to allocate together with F01P7/ 167/cci

when more precise spitting necessary

to allocate together with F01P11/18/cci







Examples

Indexing groups

Additional

information

F01P 2037/00 ControllingF01P 2037/02 Starting

F01P 2050/00 ApplicationsF01P 2050/02 Manne enginesF01P 2050/04 using direct coolingF01P 2050/06 using liquid-to-liquid heat exchangersF01P 2050/08 Engine roomF01P 2050/10 Z-type engineF01P 2050/12 Outboard engineF01P 2050/16 Motor-cyclesF01P 2050/20 Aircraft enginesF01P 2050/22 Motor-carsF01P 2050/24 Hybrid vehiclesF01P 2050/30 Circuit boards

F01P 2060/00 Cooling circuits using auxiliariesF01P 2060/02 IntercoolerF01P 2060/04 Lubricant coolerF01P 2060/045 for transmissionsF01P 2060/06 RetarderF01P 2060/08 Cabin heaterF01P 2060/10 Fuel manifoldF01P 2060/12 Turbo chargerF01P 2060/14 CondenserF01P 2060/16 Outlet manifoldF01P 2060/18 HeaterF01P 2060/185 for alternators or generators

F01P 2070/00 Details

to allocate together with F01P7/ 167/cci




to allocate together with either

F01P3/12/cci or 3/20/cci



Thank you for your attention !

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