Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on November 17, 1983.
As of Monday, December 30th, 2024 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
X-11984 and older vehicles, EXCEPT: (1) Vehicles with closed-loop carburetion (2) Fuel injected vehicles (3) Vehicles with unconventional engines (4) Turbocharged vehicles

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-143
  • Executive Order 143 / D143
  • ARB # D-143
  • Executive Order No: D-143
  • C.A.R.B. No. D-143
  • Resolution D-143
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-143 PDF

D-143 Document:

CARB_D-143

(Page 1 of 2} State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—143 Relating to Exemptions under Section 27156 of the Vehicle Code OHG, INC. VAPORIZER/REGULATOR MODEL X—1 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 Sections 39515 and 39516 of the Health and Safety Code and Executive Order G—45—5; IT I1S ORDERED AND RESOLVED: That the installation of the OHG, Inc. vaporizer/regulator model "X—1" manufactured by OHG, Inc., of 10065 A Greenleaf Avenue, Santa Fe Springs, California 90670, to be used as a substitute for Impco Carburetion Inc.‘s "E" or "L" models which are components of certified Impco Carburetion, Inc.‘s gaseous fuel conversion systems, has been found not to reduce the effectiveness of required motor vehicle pollution control devices and, therefore, is exenmpt from the prohibitions of Section 27156 of the Vehicle Code for 1984 and older model—year vehicles, excluding: 1. vehicles equipped with closed—loop carburstion (compuéer controiled carburetors) systems; ‘ 2. vehicles equipped with fual injected engines; 3. vehicles equipped with uncornventional engines such as stratified charge or rotary; 4. vehicles equipped with turbochargers. This Executive Order is valid provided that installation instructions for this device will not recommend tuning the vehicle to specifications different from those submitted by the device manufacturer. Chénges made to the design or operating conditions of the device, as exempted by the Air Resources Board, that adversely affect the performance of a vehicle‘s polliution control system shall invalidate this Executive Order. Marketing of this device using an fdentification other than that shown in this Executive Order or marketing of this device for an application other than those Tisted in this Executive Order shall be prohibited unless prior approval is obtained from the Air Resources Board. Exemption of a kit shall not be construed as an exenption to sell, offér for sale, or advertise any component of a kit as an individual device.

OHG, INC. EXECUTIVE ORDER D—143 VAPORIZER/REGULATOR MODEL X—1 (Page 2 of 2) This Executive Order does not constitute any opinion as to the effect that the use of this device may have on any warranty either expressed or implied 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 SENEFITS OR ANY ALLEGED BENEFITS OF THE OKG, INC. VAPORIZER/REGULATOR MODEL "X—1". 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 untrue or misleading advertising unlawful, and Section 17534 makes violation punishable as a misdemeanor. Section 43644 of the Health and Safety Code provides as follows: "43§44. (a) No person shall install, sé1l, offer for sale, or advertise, or, except in an application to the state board for certification 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 certified by the state board. No person shall sell, offer for sale, advertise, or represent any motor vehicle pollution sontrol devwice as a certified device which, in fact, is not a certified device. Any wvislation of this subdivision is a misdemeanor." j Any apparent violation of the conditions of this Executive Order will be submitted to the Attorney General of California for such action as he deems advisable. Executed at El Monte, California, this /2 _ day of November, 1983. Wtz K. D. Drachand, Chief Mobile Source Bivision

STATE OF CALIFORNIA AIR RESOURCES BOARD EVALUATION OF OHG, INC.‘S VAPORIZER/REGULATOR MODEL X—] FOR EXEMPTION FROM THE PROHIBITIONS IN VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE CALIFORNIA ADMINISTRATIVE CODE NOVEMBER 15, 1983

Issue Date: November 15, 1983 EVALUATION OF OHG, INC.‘S VAPORIZER/REGULATOR MODEL X~1 FOR EXEMPTION FROM — THE PROHIBITIONS IN VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE CALIFORNIA ADMINISTRATIVE CODE by MOBILE SOURCE DIVISION State of CaTifornia AIR RESOURCES BOARD 9528 Telstar Avenue El Monte, CA 91731 (This report has been reviewed by the staff of the California Air Resources Board and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the Air Resources Board, nor does mention of trade names or commercial products constitute endorsement or recommendation for use.)

SUMMARY OHG, Inc. has requested approval of their gaseous fuel vaporizer/ regulator model "X—1" as a substitute for Impco Carburetion Inc.‘s "E" or ‘"L“ models which are equivalent components of certified Impco Carburetion, Inc.‘s gaseous fuel conversion systems. OHG has submitted a pictorial and written comparison of both OHG and Impco vaporizers/requlators. OHG has also submitted comparative (vehicle converted to operate on gaseous fuel with Impco‘s "L" vaporizer/regulator versus OHG‘s "X—1" vaporizer/regulator) hot—start 505 T—bag emission test data. The tests were performed using a 1980 Ford Fairmont vehicle powered by a 200 CID engine. Based on the staff‘s engineering evaluation (comparison of OHG‘s and Impco‘s vaporizers/regulators) and the test data submitted by OHG, the staff has concluded that OHG‘s vaporizer/regulator, in substitution for Impco‘s "E" or "L" vaporizer/regulator, will not adversely affect exhaust emissions. ‘ The staff recommends that OHG‘s vaporizer/regulator model "X—1" be certified, thus allowing substitution of the "X—1" model for the Impco "E" or "L" models. The staff also recommends that Executive Order D—143 be issued.

CONTENTS Page Number SUMMARY i CONTENTS i1 I. INTRODUCTION 1 II. CONCLUSION 1 III. RECOMMENDATIONS 1 IV. VAPORIZER/REGULATOR DESCRIPTION AND COMPARISON 2 V. EVALUATION 2 VI. DISCUSSION 3 APPENDICES 5 TEST RESULTS 6 VAPORTIZERS/REGULATORS _COMPARISON 7 11

EVALUATION OF OHG, INC.‘S VAPORIZER/REGULATOR MODEL X—1 FOR EXEMPTION FROM THE PROHIBITIONS IN VEHICLE CODE SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13, OF THE CALIFORNIA ADMINISTRATIVE CODE I. INTRODUCTION OHG, Inc., of 10065 A Greenleaf Avenue, Santa Fe Springs, California 90670, has requested approval of their gaseous fuel vaporizer/regulator model ' "X—1" as a substitute for Impco Carburetion, Inc.‘s "E" or "L" models which are components of certified Impco Carburetion, Inc.‘s gaseous fuel conversion systems. OHG has submitted a pictorial and written comparison of both OHG and Impco vaporizers/regultors. OKG has also submitted comparative (vehicle converted to operate on gaseous fuel with Impco‘s "L" vaporizer/regulator versus OHG‘s "X—1" vaporizer/regulator) hot—start 505 T—bag emission test data. The tests were performed under contract by Olson Engineering, Inc. in Huntington Beach, California, using a 1980 Ford Fairmont vehicle powered by a 200 CID engine. II. CONCLUSION Based on the staff‘s engiheering evaluation {comparison of OHG‘s and Impco‘s vaporizers/regulators) and the test data submitted by OHG, the staff has concluded that OHG‘s vaporizer/regulator, in substitution for Impco‘s "E" or "L" vaporizer/regulator, will not adversely affect exhaust emissions. III. RECOMMENDATIONS The staff recommends that OHG‘s vaporizer/regulator model "X—1" be exempted, thus allowing substitution of the "X—1" model for the Impco "E" or "L" models for 1984 and older model—year vehicles, excluding:

1. vehicles equipped with closed—loop carburetion {computer controlled caburetors) systems; 2. vehicles equipped with fuel injected engines; 3. vehicles equipped with unconventional engines such as stratified charge or rotary; 4. vehicles equipped with turbochargers. The staff also recommends that Executive Order D—143 be issued. IV. VAPORIZER/REGULATOR DESCRIPTION AND COMPARISON The OHG vaporizer/regulator model "X—1" is designed to replace Impco‘s "E" or "L" models during installation of certified Impco gaseous fuel conversion systems. Both, OHG and Impco, vaporizers/regulators reduce the lTiquefied fuel pressure from the tank to 1.5 psi in a first stage of regulation, and require a 1.5" H,0 vacuum to draw the fuel from the regulator to the carburetor. However, according to OHG, the "X—1" vaporizer/regulator is designed for improved vaporization of the fuel for smooth operation and start up in extremes of low and high temperatures. For a pictorial and written comparison (internal and external) of both OHG and Impco vaporizers/regulators see Appendices. V. EVALUATION The staff performed an engineering evaluation of the OHG vaporizer/regulator. Evaluation consisted of reviewing and comparing the design and operational characteristics of both OHG and Impco vaporizers/requlators. The regulators reduce the pressure of the fuel to the _ same lTevel and allow the vaporized fuel to be drawn into the carburetor under the same degree of negative pressure. Therefore, exactly the same amount of

fuel will be delivered through the "X—1" to the engine as the "L" regulator. The improved heat—transfer design of the "X—1" vaporizer enhances engine start—up in cold weather, but at the same time, tends to increase the temperature of the fuel. Hot start emissions tests were, therefore, performed to check whether it, high fuel temperature, will have any adverse effect on emissions. A California—certified 1980 Ford Fairmont powered by a 200 CID engine was used for the emissions impact evaluation. Testing consisted of comparative {vehicle converted to operate or gaseous fuel with Impco‘s "L" vaporizer/regulator versus OHG‘s "X—1" vaporizer/regulator) hot—start 505 T—bag emission tests. A summary of the test results is shown in the Appendices. VI. DISCUSSION Impco previously claimed that their model "L" vaporizer/regulator has the same performance characteristics, including discharge pressure/rate and heat exchange capacity, as the "E" model. The components of these two Impco vaporizers/regulators are somewhat different in design; however, they operate in the same manner and meet the same performance requirements. Impco submitted, in 1982, comparative emission test data to demonstrate the equivalency of the two vaporizers/regulators. The mode] "L" vaporizer/regulator has, therefore, been approved as an alternate for the E model (CARB Executive Order B—4—8A, dated December 15, 1982). OHG, Inc. specifically stated in its application that the "X—1" converter is not a susbtitution for automobiles with feed—back controls.

Based on the fact that both Impco and OKHG vaporizers/regulators have jdentical first and second stage regulation pressures and based on the comparative emission test results, the staff concludes that their performance and functions are the same and the "X—1" vaporizer/regulator may be used in place of the Impco "E" or "L" models.

APPENDICES

Table Comparison of OHG X—1 Model Versus Impco L Model Vaporizer/Regulators 1980 Ford Fairmont — 200 CID Hot—Start 505 Tests Fue!l Exhaust Emissions {(gm/mi) Economy Vaporizer/Regulator HC C0_ NOx (mpg) Impco L 0.24 1.2 1.9 15.70 OHG X—1 0.21 0.1 2.1 15.89

OHG, INC. MODEL X—1 VAPORIZER—REGULATOR CCONVERTER) REPLACEMENT FOR IMPCO MODELS L AND E RICHARD BAVERSTOCK, VICE PRESIDENT ENGINEERING FOR OHG,INC., IN HIS PREVIOUS 25 YEAR EMPLOYMENT BY IMPCO CARBURETION INC., DESIGNED THE IMPCO MODELS E, J AND L CONVERTERS MARKETED BY THAT FIRM AND ACCEPTED BY THE CALIFORNIA AIR RESOURCES BOARD THROUGH 1983. AS A LOGICAL PROGRESSION AS A FIRST STEP IN PRODUCING AN ADVAN— CED CARBURETION SYSTEM FOR OHG,INC., MR. BAVERSTOCK DESIGNED THE X—1 MODEL TO BE COMPATIBLE WITH IMPCO CARBURETORS, ALSO DESIGNED IN THEIR ENTIRETY BY MR. BAVERSTOCK. THE DESIGN OF THE CARBURETORS UTILIZES A CONSTANT DEPRESSION (AIR VALVE) TYPE OF CONSTRUCTION, WHICH, WITH INNOVATIONS, WILL 8E THE BASIS OF OHG, INC. CARBURETOR DESIGNS AS WELL. AS MAY BE SEEN IN THE PICTURES COMPARING THE IMPCO MODEL L AND THE OHG, INC. MODEL X—1, THE BASIC DESIGN IS SIMILAR IN THAT EACH RECEIVES LIQUID FUEL FROM THE SUPPLY TANK AT PROX. 180 PSI. THIS PRESSURE IS REDUCED TG§pe®@ (40" H20) IN A FIRST STAGE OF REGULATION (AS SHOWN ON GAUGE # 1). UPON RELEASE FROM THE PRIMARY REGULATOR, THE LIQUID FUEL IS PROPELLED AGAINST THE HEATED WALLS OF THE VAPORIZING MAZE WHERE THE FUEL IS CONVERTED TO A DRY GAS AND HEATED TO APPROXIMATELY 80° F AT FULL RATED CAPACITY OF 300 HP FOR THE X—1. R THE FUEL FLOW IS STOPPED AT A SECONDAR ATOR VALVE WHEN THE ENGINE IS NOT IN USE. A VACUUM 5 REQUIRED TO DRAW FUEL FROM THE VAPORIZER REGULAT CSHOWN AT GAUGE #2) THESE PRESSURES ARE COMMON TO ALL BAVERSTOCK DESIGNED VAPORIZER— REGULATORS MANUFACTURED IN THE PAST TWENTY FIVE YEARS. THERE ARE DESIGN DIFFERENCES IN THE X—1 FOR WHICH PATENTS ARE BEING REQUESTED. THESE ARE DESIGNED TO IMPROVE COLD WEATHER (—30° ) VAPORIZATION, MORE ACCURATE FIRST STAGE REGULATION AND ECONOMICAL MEANS OF MANUFACTURE. THESE DIFFERENCES WOULD NOT AFFECT EMISSIONS IN EVERY DAY USE, BUT SHOULD LESSEN EMISSIONS IN UNUSUALLY COLD CONDITIONS. OHG, INC. CATEGORICALLY ASSERTS THAT EMISSIONS WILL NOT BE IN— CREASED BY SUBSTITUTION OF THE X—1 FOR ANY IMPCO VAPORIZER— REGULATOR USED WITH THE CONSTANT DEPRESSION (AIR VALVE) DESIGN OF CARBURETORS. OHG, INC. DOES NOT RECOMMEND THE USE OF IT‘S VAPORIZER—REGULATOR WITH ELECTRONIC FEED—BACK APPLICATIONS IN THEIR PRESENT FORM. IT‘S PLANNED MARKET IS FOR USE ON LIGHT, MEDIUM AND HEAVY DUTY TRUCKS. OHG, INC. IS RECOMMENDING AGAINST PASSENGER CAR INSTALL— ATIONS BECAUSE OF MINIMAL UNDERKHOOD ROOM AND HIGH LIABILITY RISK.

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PAGE 4 #7 COMPLETED ASSEMBLIES OF X—1 AND L VAPORIZER—REGULATORS NOTE REDUCED BULK OF X—1 ASSEMBLED FOR EASE OF INSTALLATION. #8 PRESSURE GAUGES WITH ENGINE RUNNING GAVGE #1 GAVGE #2 SHOWS PRECISE 40" H20 PRIMARY SHOWS —1.5" H20 (CVACUUM) REGULATOR PRESSURE W/ENGINE RUNNING REQUIRED TO DRAW FUEL FROM THE X—1 VAPORIZER—REGULATOR 3


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

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