Rolls-Royce Archives
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
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Plans for a visit from a Mr. Elliott and the development of a sports Phantom carburettor and slot induction pipe.6th Feb 1928Box 13 \ 3  03-page016
The Standard Phantom's next 10,000-mile test, involving personnel arrangements and development of a sports carburetor and induction pipe.1st Feb 1928Box 13 \ 3  03-page017
Experimental results and requesting drawings for a modified Weir type induction manifold for the Phantom engine.2nd Feb 1928Box 13 \ 3  03-page018
Blueprint for an induction pipe and modifications to fit a Phantom carburettor.10th Mar 1928Box 13 \ 3  03-page019
Drawing for an inlet pipe and carburettor adaptation for the EAC.10 cylinder head.1st Mar 1928Box 13 \ 3  03-page020
Modification to an induction pipe and a query regarding the standard carburetter scheme.24th Mar 1928Box 13 \ 3  03-page021
Blueprint LeC.2527, approving modifications to a carburettor and induction bend water jacket.27th Mar 1928Box 13 \ 3  03-page022
Tests conducted on weir and slotted type Phantom induction pipes.21th Apr 1928Box 13 \ 3  03-page023
Experiments with induction pipe and nozzle designs to improve engine performance.21th Apr 1928Box 13 \ 3  03-page024
Report comparing the performance of weir, standard, and slotted induction pipes, with conclusions on future development.26th Apr 1928Box 13 \ 3  03-page025
Requesting modifications and tests on Phantom induction pipes.26th Apr 1928Box 13 \ 3  03-page026
Modifications to the wheelcase, throttle governor, and induction pipe for the EAC.10 engine.5th Apr 1928Box 13 \ 3  03-page027
Standardisation of chassis parts for an aluminium inlet pipe.26th Mar 1928Box 13 \ 3  03-page028
Standardisation document for chassis parts concerning an aluminium inlet pipe modification.25th Jun 1928Box 13 \ 3  03-page029
Proposed modifications to a Phantom Weir type slotted induction pipe.12th May 1928Box 13 \ 3  03-page030
Proposal for a modification to the induction system for the F.2B series, outlining the issues with the current design and the benefits of a new one.18th May 1928Box 13 \ 3  03-page031
Page 2 of a memorandum listing parts affected by a proposed change, specifically induction and exhaust components.15th May 1928Box 13 \ 3  03-page032
List of replaced parts for the Phantom - Weir type induction pipes.19th May 1928Box 13 \ 3  03-page033
Lec.2560 design for throttle governor control and modifications to the induction pipe.19th May 1928Box 13 \ 3  03-page034
Design of Phantom induction pipes and tappet clearance issues with aluminium cylinder heads.30th May 1928Box 13 \ 3  03-page035
The design of a suitable induction pipe to enable engine running, referencing drawing Lec.2562.6th Jun 1928Box 13 \ 3  03-page036
Further tests comparing exhaust and water-heated induction pipes for the Phantom model.9th Jun 1928Box 13 \ 3  03-page037
Comparison of engine warm-up performance between a standard exhaust heating system and a water-based system.9th Jun 1928Box 13 \ 3  03-page038
Graph comparing the temperature rise of a hot spot on an F.2.B. Series Phantom engine using exhaust versus water heating.9th Jun 1928Box 13 \ 3  03-page039
Diagram illustrating the setup for Phantom hot spot tests.11th Jun 1929Box 13 \ 3  03-page040
Induction pipe heating tests for the Phantom, comparing four different systems.14th Jun 1928Box 13 \ 3  03-page041
Comparison of water-heated versus exhaust-heated induction systems and the benefits of a 'hot spot' for fuel evaporation.14th Jun 1928Box 13 \ 3  03-page042
Induction systems, carburettors, and 'hot-spot' heating for six-cylinder engines.12th Jun 1928Box 13 \ 3  03-page043
Graph comparing the temperature rise of a hot spot on an F-2-B Series Phantom engine with different exhaust and water heat configurations.12th Jun 1928Box 13 \ 3  03-page044
Drawings for a new experimental carburetter for the Phantom engine.20th Jun 1928Box 13 \ 3  03-page045
Proposing a novel, patentable scheme for induction pipe heating using an independent pipe and valve.21th Jun 1928Box 13 \ 3  03-page046
Contingency plan for carburetter and induction pipe design for the Phantom and other models.21th Jun 1928Box 13 \ 3  03-page047
Specifications for an expanding throat carburettor and associated components.23th Jun 1928Box 13 \ 3  03-page048
Alterations to induction pipes, comparing an exhaust heated jacket with a water heated scheme.12th Sep 1928Box 13 \ 3  03-page049
Test report on the 'SS' engine, focusing on induction pipe distribution and camshaft timing.20th Sep 1928Box 13 \ 3  03-page050
Report comparing camshaft power curves, noting vacuum pump lubrication issues and suggesting tappet adjustment improvements.17th Oct 1928Box 13 \ 3  03-page051
Expressing concern that the 'SS' engine development has been neglected due to the focus on aero engine work.17th Oct 1928Box 13 \ 3  03-page052
Engine compression experiments and improvements for the EAC.10 (SS) engine.17th Oct 1928Box 13 \ 3  03-page053
Preliminary tests of an expanding throat carburetter on an 'SS' engine.28th Nov 1928Box 13 \ 3  03-page054
Analysis of engine performance related to carburettor choke area, restrictors, and induction depression.28th Nov 1928Box 13 \ 3  03-page055
Technical memorandum discussing carburettor performance, development, and selection for 'SS' engines.8th Nov 1928Box 13 \ 3  03-page056
Performance comparison graph for an Expanding Throat Carburettor on Engine SS-3.8th Nov 1928Box 13 \ 3  03-page057
Performance and potential improvements for the 'SS' Carburetter.1st Nov 1928Box 13 \ 3  03-page058
'SS' induction pipe hot spot and comparing exhaust versus water heating systems.1st Nov 1928Box 13 \ 3  03-page059
List of suggested alterations for the 'SS' carburetter.15th Nov 1928Box 13 \ 3  03-page060
Mixture distribution for the SS and G4 induction pipes and a proposal for steam heating the jacket.1st Dec 1928Box 13 \ 3  03-page061
Carburation practices for both aero and car engines, covering suction, cold starts, and heating.1st Jan 1929Box 13 \ 3  03-page062
The performance improvements of the 'SS' chassis engine, detailing increased power and better cold-start behaviour.16th Jan 1929Box 13 \ 3  03-page063
Recommendation to design and fit a thermostat to the 'SS' engine.21th Jan 1929Box 13 \ 3  03-page064
Improved screw head for 'SS' carburetter mixture adjustment, specifically for India chassis.21th Jan 1929Box 13 \ 3  03-page065
Potential improvements to the Phantom carburettor using a diffuser type jet.21th Jan 1929Box 13 \ 3  03-page066
Carburettor development, comparing a diffuser type jet with a plain jet, and the progress of the SS expanding carburettor.21th Jan 1929Box 13 \ 3  03-page067
Review of induction system heating and distribution, comparing past Phantom engine tests with the S.S. engine.21th Jan 1929Box 13 \ 3  03-page068
Report comparing induction and heating systems, including water and superheated steam, for the Phantom engine.21th Jan 1929Box 13 \ 3  03-page069
Analysis of heat transference in exhaust and induction systems and its effect on engine operation.21th Jan 1929Box 13 \ 3  03-page070
Engine performance issues related to induction system and carburetter heat on the Phantom model.21th Jan 1929Box 13 \ 3  03-page071
Engine induction and exhaust heating systems, with a diagram of twin exhaust ports.21th Jan 1929Box 13 \ 3  03-page072
Description and test results of a 'Solex' carburetter system, including a diagram of its 'hot spot' manifold.21th Jan 1929Box 13 \ 3  03-page073
Methods for accelerating engine warm-up using thermostatic water control and radiator shutters.21th Jan 1929Box 13 \ 3  03-page074
Proposal and diagram for an experimental induction system to prevent engine detonation.21th Jan 1929Box 13 \ 3  03-page075
Proposed scheme with an improved manifolding design offering advantages over the Phantom model.28th Jan 1929Box 13 \ 3  03-page076
Further tests of the 'SS' expanding carburetter on a Phantom engine.28th Jan 1929Box 13 \ 3  03-page077
Technical report on carburetor and induction pipe depression tests.28th Jan 1929Box 13 \ 3  03-page078
Technical memo page discussing alternative designs for a restrictor and float chamber.28th Jan 1929Box 13 \ 3  03-page079
Graph showing induction depressions on an S.S. carburettor related to the area past the choke.28th Jan 1929Box 13 \ 3  03-page080
Proposal for an air pump silencer to be connected to the carburetter air inlet.31th Jan 1929Box 13 \ 3  03-page081
Carburettor design, comparing an old model with new ideas for improvement.1st Feb 1929Box 13 \ 3  03-page082
Abandoning exhaust heating for water heating on the S.S. and G.4. induction system.11th Feb 1929Box 13 \ 3  03-page083
Proposal for a chassis engine carburetter design using two butterfly valves in series.1st Feb 1929Box 13 \ 3  03-page084
Confirming the change from exhaust heating to water jacketed bend heating for the carburetter on SS chassis engines.11th Feb 1929Box 13 \ 3  03-page085
Carburettor performance and cold start tests for the SS chassis.2nd Feb 1929Box 13 \ 3  03-page086
Carburettor valve performance, engine warm-up, and design suggestions for a water seal gland.1st Feb 1929Box 13 \ 3  03-page087
Engine failure caused by a carburetter air valve penny pin, recommending a reversion to a previous design.1st Mar 1929Box 13 \ 3  03-page088
Drawings and application details for two different chassis parts.19th Apr 1929Box 13 \ 3  03-page089
Request for parts and flowmeters for a supercharger carburetter testing rig.19th Apr 1929Box 13 \ 3  03-page090
List of parts required for a carburetter testing plant for a Phantom engine and supercharger.16th May 1929Box 13 \ 3  03-page091
Request for information on the form and size of air ports for S.S. Carburetters.16th May 1929Box 13 \ 3  03-page092
Piston seizures caused by starter carburetter over-use and the appropriate method of warning.19th Jun 1929Box 13 \ 3  03-page093
Proposed modifications to the SS & 20 HP starter carburetters.22th Jun 1929Box 13 \ 3  03-page094
Clarifying operational instructions for the starter carburetter, intended for the instruction book.25th Jun 1929Box 13 \ 3  03-page095
The 'fuss or roar' of the engine and defending recent chassis improvements.26th Jun 1929Box 13 \ 3  03-page096
'SS' carburettors recommending no change to the air ports based on test results.27th Jun 1929Box 13 \ 3  03-page097
Car pistons, starter carburetters, and potential modifications.27th Jun 1929Box 13 \ 3  03-page098
Secret report on vehicle performance issues including steering, engine roughness, and carburetter adjustments for the SS (Phantom 2).28th Jun 1929Box 13 \ 3  03-page099
Confirming instructions to fit a starter carburettor to D.2 series pieces and produce a special spindle.16th Aug 1929Box 13 \ 3  03-page100
Replacement and experimental parts for an 'SS' Phantom Starting Carburetter.16th Aug 1929Box 13 \ 3  03-page101
Issue with a stretched throttle control spring on an S.S. Carburetter during tests.19th Aug 1929Box 13 \ 3  03-page102
Modifications to a starter carburettor to improve engine starting.26th Aug 1929Box 13 \ 3  03-page103
Best mechanical jet settings for the S.S. engine carburetter.29th Aug 1929Box 13 \ 3  03-page104
Petrol flow issues with an SS Carburetter float chamber and the satisfactory test of a new needle.30th Aug 1929Box 13 \ 3  03-page105
Questioning the necessity of proceeding with autovac testing based on a report that S.S. carburetter trouble is unrelated.2nd Sep 1929Box 13 \ 3  03-page106
Recurring petrol system failure possibly linked to the Autovac and the necessity for specific testing.2nd Sep 1929Box 13 \ 3  03-page107
The distribution of a leaflet titled 'Starting Carburetter' and its insertion into various chassis instruction books.2nd Sep 1929Box 13 \ 3  03-page108
Requirement and methods for exhaust heating the carburettor's induction pipe on the Phantom II.4th Oct 1929Box 13 \ 3  03-page109
Experimental instructions for 'S.S. Hot Spot' testing and a performance upgrade program for a 20 HP engine.16th Oct 1929Box 13 \ 3  03-page110
List of action points for engine modifications, component testing, and comparisons with other models.21th Oct 1929Box 13 \ 3  03-page111
The development and testing of an expanding carburetter on a Standard Phantom I engine.21th Oct 1929Box 13 \ 3  03-page112
Comparison of carburettor performance, focusing on choke sizes, manifold depression and power output.21th Oct 1929Box 13 \ 3  03-page113
Report page detailing carburetter experiments, including pressure restoration and power curve comparisons.21th Oct 1929Box 13 \ 3  03-page114
Technical analysis of carburettor modifications, including enlarged chokes and restrictors, to improve power output on Phantom and S.S. engines.21th Oct 1929Box 13 \ 3  03-page115


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