Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on June 22, 1973.
As of Friday, October 4th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Models
1966-1973 Model Year Vehicles.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-11
  • Executive Order 11 / D11
  • ARB # D-11
  • Executive Order No: D-11
  • C.A.R.B. No. D-11
  • Resolution D-11
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-11 PDF

D-11 Document:

CARB_D-11

State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—11 Relating to Exemptions under Section 27156 of the Vehicle Code THERNMO KING COPPORAMTION "THERMOTRONIC" Pursuant to the authority vested in the Air Resources Board by Section 27156 of the Vehicle Code; and Pursuant to the authority vested in the undersigned by Section 39023 of the Health and Safety Code; IT IS ORDERED AND RESOLVED: That the installation of a "THERMOTRONIC" capacity discharge ignition system manufactured by Thermo Xing Corporation has been found to not reduce the effectiveness of required emission control devices in vehicles and therefore is exempt from the prohibitions of Section 27156 of the Vehicle Code for 1966—1973 model—year vehicles. The device consists of a sensor, d—c converter, storage capacitor and a electronic switch. This Executive Order is valid provided that installation instructions for this device will not recommend tuning the vehicle to specifications different than those listed by the vehicle manufacturer. THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION, APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESOURCES BOARD OF ANY CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OP THE "THERMOTRONIC" DEVICE. No claim of any kind, such as "Approved by Air Resources Board" may be made with respect to the action taken herein in any advertising or other oral or written communication. Section 17500 of the Business and Professions Code makes unlawful, untrue or misleading advertising and Section 17534 makes violation punishable as a misdemeanor. Section 39130 and 39184 of the Health and Safety Code provide as follows: "39130. No person shall install, sell, offer for sale, or advertise, or, except in an application to the board for certification of a device, represent, any device as a motor vehicle pollution control device unless that device has been certified by the board. No person shall sell, offer for sale, advertise, or represent any motor vehicle pollution control device as a certified device which, i n fact, is not a certified device. Any violation of this section is a misdemeanor."

EXECUTIVE ORDER D—11 "THERMOTRONIC® "39184. No person shall install, sell, offer for sale, or advertise, or, except in an application to the board for accreditation of a device, represent, any device as a motor vehicle pollution control device for use on any used motor vehicle unless that device has been accredited by the board. No person shall sell, offer for sale, adver— tise, or represent any motor vehicle polliution control device as an accredited device. Any violation of this section is a misdemeanor." Any apparent violation of the policy or laws will be submitted to the Attorney General of California for such action as he deems advisable. Executed at Sacramento, California, this day of June, 1973. JOHN A. MAGA Executive Officer

State of California AIR RESOURCES BOARD May 25, 1973 Staff Report Evaluation of Termo King Corporation "Thermotrcnic Ignition System" Breakerless Capacitive Discharge Iqgnition System For Exemption to the Prohibitions of Section 27156 of the Motor Vehicle Code. Introduction Thermo King Corporation, Minneapolis, Minnesota, has applied for exemption to the prohibitions of Section 27156 of the Motor Vehicle Code for the "Thermotronic" breakerless capacitive dis— charge system. Section 27156 prohibits the installation of any device which reduces the effectiveness of‘motcr vehicle emission control systems. The applicant intends to sell the device as an "after—market" part to replace the standard ignition system. The Air Resources Board has adopted criteria for the evaluation of "after—market" devices for compliance with Section 27156. The basis for evaluation isvdefined in the "Air Resources Board Criteria for Determining Compliance with Section 27156 of the Motor Yehicle Code", dated february 17, 1971.

System Description For a general description of breakerless capacitive discharge systems, see staff report "Evaluation of Capacitive Discharge and Transistorized Ignition Systems for Compliance with the Requirements of Section 27156 of the Motor Vehicle Code", dated February 14, 1973. The "Thermotronic" device consists of two major components: A sensor and power unit (see schematic). 76&——NW—— switch i “-“——‘1 '“—é 2) Coil —— Trigger Unit l—‘ Converter g; 3 ~~ ' L_] Unit : ~; Battery . L) 1 ‘ Cam To distributo 4 and spark plu The sensor is a magnetic pulse generator whose pulses are gen— erated by movement of the distributor cam in the magnetic field. This signal is fed into the capacitive discharge circuit discharging the storage capacitor into the primary windings of the ignition coil. The capacitive discharge circuit consists of a D—C converter, storage capacitor and an electronic switching circuit. The system is capable of an output of 32 KV and 60 millijoules.

iI. Emission Testing The applicant has submitted hot CVS test data conducted by Seott Laboratories (Tables 1 and 2). The hot CVS test data are summarized below: Hot CVS Percent Deduction Feled co NOx Thermotronic 6 9 —3 {2 vehicle fleet) (—} indicates an increase Because of the number of exefiption applications received from manufacturers of capacitive discharge ignition systems, Air Resources Board Laboratory confirmatory tests were not performed on the "Thermotronic" system,. A Clytronics Corporation "Clytron" breakeriess C—D system was selected for testing to represent this group. The results of these tests are shown in the staff report "Evaluation of Clytronics Corporation "Clytron" Breakerless Capacitive Discharge Iqgnition System for Exemption to the Prohibitions of Section 27156 of the Motor Vehicle Code". These data verify that a breakerless capacitive discharge iénition system does not adversely affect the exhaust emissions of a "tuned" engine.

IVv. Conclusions afid Récemmendations It is the staff opinion that Thermo King "Thermotronic" breaker— less capacitive discharge ignition system will not adversely affect motor vehicle exhaust emissions when evaluated with respect to the exhaust emissions obtained with a conventional ignition system of a."tuned" engine. This device may also have a beneficial effect in the control of exhaust emissions in that the device may maintain the “tfined" condition for a longer pericd of time. There— fore, the "Thermotromic" breakerless capacitive discharge ignition system should be exempt from the prohibitions of Section 27156 of the motor vehicle code.

Table 1 Description of Test Vehicles Car 1 Car 2 Year 1973 _ 1973 —Make Chevrolet ‘ Ford Model Pick~Up . Grand Toriro License No. 82901 M (Calif.) 826 CHL (Calif.) I. D. Ko. CCY1432105399 34318117559 Engine CID 350 " 351 Carb. BBLS | 4V4 — 2V Transmission Auto _ Auto

Table 2 Emission Test Results Exhaust Emissions, gms/mi. Idla Readings Vehicle HC 60 No * co nomage <—C—R— RPM Timing _ Remarks 1973 Chev. 1.66 25.84 2.50 710.7 600 12°Btc Baseline Test 1975 Chev. 1.49 24.66 2239 670.8 620 12°e7C With Device Test 1973 Ford 1.66 17.53 1.93 796.4 625 6°Btc Baseline Test 1973 Ford 1.64 14.66 2.16 768.9 625 6°Btc With Device Test * Total oxides of nitrogen measured by chemiluminescence method and corrected for ambient humidity


Document Created: 2005-09-01 12:44:31
Document Modified: 2005-09-01 12:44:31

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